X-Git-Url: http://git.freeside.biz/gitweb/?a=blobdiff_plain;f=FS%2FFS%2FRecord.pm;h=7019cb99c0d45efd754753b1bf4903429fd961d5;hb=d4cdc4db87f1b6a373398b7ab33e791bd0527dda;hp=634d5bd7cd55632d3a786b867fe0ba9a246203a3;hpb=9fa8e28db3d4964192a6e0dddb62c7f88cc0eb9f;p=freeside.git

diff --git a/FS/FS/Record.pm b/FS/FS/Record.pm
index 634d5bd7c..493734729 100644
--- a/FS/FS/Record.pm
+++ b/FS/FS/Record.pm
@@ -1,42 +1,79 @@
 package FS::Record;
+use base qw( Exporter );
 
 use strict;
-use vars qw( $dbdef_file $dbdef $setup_hack $AUTOLOAD @ISA @EXPORT_OK $DEBUG
-             $me %dbdef_cache %virtual_fields_cache );
-use subs qw(reload_dbdef);
-use Exporter;
+use vars qw( $AUTOLOAD
+             %virtual_fields_cache
+             $money_char $lat_lower $lon_upper
+           );
 use Carp qw(carp cluck croak confess);
+use Scalar::Util qw( blessed );
+use File::Slurp qw( slurp );
 use File::CounterFile;
-use Locale::Country;
+use Text::CSV_XS;
 use DBI qw(:sql_types);
-use DBIx::DBSchema 0.23;
-use FS::UID qw(dbh getotaker datasrc driver_name);
+use DBIx::DBSchema 0.43; #0.43 for foreign keys
+use Locale::Country;
+use Locale::Currency;
+use NetAddr::IP; # for validation
+use FS::UID qw(dbh datasrc driver_name);
+use FS::CurrentUser;
+use FS::Schema qw(dbdef);
 use FS::SearchCache;
 use FS::Msgcat qw(gettext);
-use FS::Conf;
+#use FS::Conf; #dependency loop bs, in install_callback below instead
 
 use FS::part_virtual_field;
 
 use Tie::IxHash;
 
-@ISA = qw(Exporter);
-@EXPORT_OK = qw(dbh fields hfields qsearch qsearchs dbdef jsearch);
+our @encrypt_payby = qw( CARD DCRD CHEK DCHK );
+
+#export dbdef for now... everything else expects to find it here
+our @EXPORT_OK = qw(
+  dbh fields hfields qsearch qsearchs dbdef jsearch
+  str2time_sql str2time_sql_closing regexp_sql not_regexp_sql concat_sql
+  midnight_sql
+);
+
+our $DEBUG = 0;
+our $me = '[FS::Record]';
 
-$DEBUG = 0;
-$me = '[FS::Record]';
+our $nowarn_identical = 0;
+our $nowarn_classload = 0;
+our $no_update_diff = 0;
+our $no_history = 0;
+
+our $no_check_foreign = 1; #well, not inefficiently in perl by default anymore
 
-my $conf;
 my $rsa_module;
 my $rsa_loaded;
 my $rsa_encrypt;
 my $rsa_decrypt;
 
-#ask FS::UID to run this stuff for us later
-$FS::UID::callback{'FS::Record'} = sub { 
-  $File::CounterFile::DEFAULT_DIR = "/usr/local/etc/freeside/counters.". datasrc;
-  $dbdef_file = "/usr/local/etc/freeside/dbdef.". datasrc;
-  &reload_dbdef unless $setup_hack; #$setup_hack needed now?
-};
+our $conf = '';
+our $conf_encryption = '';
+FS::UID->install_callback( sub {
+
+  eval "use FS::Conf;";
+  die $@ if $@;
+  $conf = FS::Conf->new; 
+  $conf_encryption = $conf->exists('encryption');
+  $money_char = $conf->config('money_char') || '$';
+  my $nw_coords = $conf->exists('geocode-require_nw_coordinates');
+  $lat_lower = $nw_coords ? 1 : -90;
+  $lon_upper = $nw_coords ? -1 : 180;
+
+  $File::CounterFile::DEFAULT_DIR = $conf->base_dir . "/counters.". datasrc;
+
+  if ( driver_name eq 'Pg' ) {
+    eval "use DBD::Pg ':pg_types'";
+    die $@ if $@;
+  } else {
+    eval "sub PG_BYTEA { die 'guru meditation #9: calling PG_BYTEA when not running Pg?'; }";
+  }
+
+} );
 
 =head1 NAME
 
@@ -45,7 +82,7 @@ FS::Record - Database record objects
 =head1 SYNOPSIS
 
     use FS::Record;
-    use FS::Record qw(dbh fields qsearch qsearchs dbdef);
+    use FS::Record qw(dbh fields qsearch qsearchs);
 
     $record = new FS::Record 'table', \%hash;
     $record = new FS::Record 'table', { 'column' => 'value', ... };
@@ -80,8 +117,11 @@ FS::Record - Database record objects
     $value = $record->unique('column');
 
     $error = $record->ut_float('column');
+    $error = $record->ut_floatn('column');
     $error = $record->ut_number('column');
     $error = $record->ut_numbern('column');
+    $error = $record->ut_snumber('column');
+    $error = $record->ut_snumbern('column');
     $error = $record->ut_money('column');
     $error = $record->ut_text('column');
     $error = $record->ut_textn('column');
@@ -91,10 +131,6 @@ FS::Record - Database record objects
     $error = $record->ut_anything('column');
     $error = $record->ut_name('column');
 
-    $dbdef = reload_dbdef;
-    $dbdef = reload_dbdef "/non/standard/filename";
-    $dbdef = dbdef;
-
     $quoted_value = _quote($value,'table','field');
 
     #deprecated
@@ -136,7 +172,8 @@ sub new {
 
   unless ( defined ( $self->table ) ) {
     $self->{'Table'} = shift;
-    carp "warning: FS::Record::new called with table name ". $self->{'Table'};
+    carp "warning: FS::Record::new called with table name ". $self->{'Table'}
+      unless $nowarn_classload;
   }
   
   $self->{'Hash'} = shift;
@@ -187,13 +224,42 @@ sub create {
   }
 }
 
-=item qsearch TABLE, HASHREF, SELECT, EXTRA_SQL, CACHE_OBJ, ADDL_FROM
+=item qsearch PARAMS_HASHREF | TABLE, HASHREF, SELECT, EXTRA_SQL, CACHE_OBJ, ADDL_FROM
 
 Searches the database for all records matching (at least) the key/value pairs
 in HASHREF.  Returns all the records found as `FS::TABLE' objects if that
 module is loaded (i.e. via `use FS::cust_main;'), otherwise returns FS::Record
 objects.
 
+The preferred usage is to pass a hash reference of named parameters:
+
+  @records = qsearch( {
+                        'table'       => 'table_name',
+                        'hashref'     => { 'field' => 'value'
+                                           'field' => { 'op'    => '<',
+                                                        'value' => '420',
+                                                      },
+                                         },
+
+                        #these are optional...
+                        'select'      => '*',
+                        'extra_sql'   => 'AND field = ? AND intfield = ?',
+                        'extra_param' => [ 'value', [ 5, 'int' ] ],
+                        'order_by'    => 'ORDER BY something',
+                        #'cache_obj'   => '', #optional
+                        'addl_from'   => 'LEFT JOIN othtable USING ( field )',
+                        'debug'       => 1,
+                      }
+                    );
+
+Much code still uses old-style positional parameters, this is also probably
+fine in the common case where there are only two parameters:
+
+  my @records = qsearch( 'table', { 'field' => 'value' } );
+
+Also possible is an experimental LISTREF of PARAMS_HASHREFs for a UNION of
+the individual PARAMS_HASHREF queries
+
 ###oops, argh, FS::Record::new only lets us create database fields.
 #Normal behaviour if SELECT is not specified is `*', as in
 #C<SELECT * FROM table WHERE ...>.  However, there is an experimental new
@@ -205,158 +271,206 @@ objects.
 
 =cut
 
-sub qsearch {
-  my($stable, $record, $select, $extra_sql, $cache, $addl_from ) = @_;
-  #$stable =~ /^([\w\_]+)$/ or die "Illegal table: $table";
-  #for jsearch
-  $stable =~ /^([\w\s\(\)\.\,\=]+)$/ or die "Illegal table: $stable";
-  $stable = $1;
-  $select ||= '*';
-  my $dbh = dbh;
+my %TYPE = (); #for debugging
 
-  my $table = $cache ? $cache->table : $stable;
-  my $dbdef_table = $dbdef->table($table)
-    or die "No schema for table $table found - ".
-           "do you need to create it or run dbdef-create?";
-  my $pkey = $dbdef_table->primary_key;
+sub _bind_type {
+  my($type, $value) = @_;
 
-  my @real_fields = grep exists($record->{$_}), real_fields($table);
-  my @virtual_fields;
-  if ( eval 'scalar(@FS::'. $table. '::ISA);' ) {
-    @virtual_fields = grep exists($record->{$_}), "FS::$table"->virtual_fields;
+  my $bind_type = { TYPE => SQL_VARCHAR };
+
+  if ( $type =~ /(big)?(int|serial)/i && $value =~ /^-?\d+(\.\d+)?$/ ) {
+
+    $bind_type = { TYPE => SQL_INTEGER };
+
+  } elsif ( $type =~ /^bytea$/i || $type =~ /(blob|varbinary)/i ) {
+
+    if ( driver_name eq 'Pg' ) {
+      no strict 'subs';
+      $bind_type = { pg_type => PG_BYTEA };
+    #} else {
+    #  $bind_type = ? #SQL_VARCHAR could be fine?
+    }
+
+  #DBD::Pg 1.49: Cannot bind ... unknown sql_type 6 with SQL_FLOAT
+  #fixed by DBD::Pg 2.11.8
+  #can change back to SQL_FLOAT in early-mid 2010, once everyone's upgraded
+  #(make a Tron test first)
+  } elsif ( _is_fs_float( $type, $value ) ) {
+
+    $bind_type = { TYPE => SQL_DECIMAL };
+
+  }
+
+  $bind_type;
+
+}
+
+sub _is_fs_float {
+  my($type, $value) = @_;
+  if ( ( $type =~ /(numeric)/i && $value =~ /^[+-]?\d+(\.\d+)?$/ ) ||
+       ( $type =~ /(real|float4)/i && $value =~ /[-+]?\d*\.?\d+([eE][-+]?\d+)?/)
+     ) {
+    return 1;
+  }
+  '';
+}
+
+sub qsearch {
+  my( @stable, @record, @cache );
+  my( @select, @extra_sql, @extra_param, @order_by, @addl_from );
+  my @debug = ();
+  my %union_options = ();
+  if ( ref($_[0]) eq 'ARRAY' ) {
+    my $optlist = shift;
+    %union_options = @_;
+    foreach my $href ( @$optlist ) {
+      push @stable,      ( $href->{'table'} or die "table name is required" );
+      push @record,      ( $href->{'hashref'}     || {} );
+      push @select,      ( $href->{'select'}      || '*' );
+      push @extra_sql,   ( $href->{'extra_sql'}   || '' );
+      push @extra_param, ( $href->{'extra_param'} || [] );
+      push @order_by,    ( $href->{'order_by'}    || '' );
+      push @cache,       ( $href->{'cache_obj'}   || '' );
+      push @addl_from,   ( $href->{'addl_from'}   || '' );
+      push @debug,       ( $href->{'debug'}       || '' );
+    }
+    die "at least one hashref is required" unless scalar(@stable);
+  } elsif ( ref($_[0]) eq 'HASH' ) {
+    my $opt = shift;
+    $stable[0]      = $opt->{'table'}       or die "table name is required";
+    $record[0]      = $opt->{'hashref'}     || {};
+    $select[0]      = $opt->{'select'}      || '*';
+    $extra_sql[0]   = $opt->{'extra_sql'}   || '';
+    $extra_param[0] = $opt->{'extra_param'} || [];
+    $order_by[0]    = $opt->{'order_by'}    || '';
+    $cache[0]       = $opt->{'cache_obj'}   || '';
+    $addl_from[0]   = $opt->{'addl_from'}   || '';
+    $debug[0]       = $opt->{'debug'}       || '';
   } else {
-    cluck "warning: FS::$table not loaded; virtual fields not searchable";
-    @virtual_fields = ();
+    ( $stable[0],
+      $record[0],
+      $select[0],
+      $extra_sql[0],
+      $cache[0],
+      $addl_from[0]
+    ) = @_;
+    $select[0] ||= '*';
   }
+  my $cache = $cache[0];
 
-  my $statement = "SELECT $select FROM $stable";
-  $statement .= " $addl_from" if $addl_from;
-  if ( @real_fields or @virtual_fields ) {
-    $statement .= ' WHERE '. join(' AND ',
-      ( map {
+  my @statement = ();
+  my @value = ();
+  my @bind_type = ();
+  my $dbh = dbh;
+  foreach my $stable ( @stable ) {
+    #stop altering the caller's hashref
+    my $record      = { %{ shift(@record) || {} } };#and be liberal in receipt
+    my $select      = shift @select;
+    my $extra_sql   = shift @extra_sql;
+    my $extra_param = shift @extra_param;
+    my $order_by    = shift @order_by;
+    my $cache       = shift @cache;
+    my $addl_from   = shift @addl_from;
+    my $debug       = shift @debug;
+
+    #$stable =~ /^([\w\_]+)$/ or die "Illegal table: $table";
+    #for jsearch
+    $stable =~ /^([\w\s\(\)\.\,\=]+)$/ or die "Illegal table: $stable";
+    $stable = $1;
+
+    my $table = $cache ? $cache->table : $stable;
+    my $dbdef_table = dbdef->table($table)
+      or die "No schema for table $table found - ".
+             "do you need to run freeside-upgrade?";
+    my $pkey = $dbdef_table->primary_key;
+
+    my @real_fields = grep exists($record->{$_}), real_fields($table);
+
+    my $statement .= "SELECT $select FROM $stable";
+    $statement .= " $addl_from" if $addl_from;
+    if ( @real_fields ) {
+      $statement .= ' WHERE '. join(' AND ',
+        get_real_fields($table, $record, \@real_fields));
+    }
 
-      my $op = '=';
-      my $column = $_;
-      if ( ref($record->{$_}) ) {
-        $op = $record->{$_}{'op'} if $record->{$_}{'op'};
-        #$op = 'LIKE' if $op =~ /^ILIKE$/i && driver_name ne 'Pg';
-        if ( uc($op) eq 'ILIKE' ) {
-          $op = 'LIKE';
-          $record->{$_}{'value'} = lc($record->{$_}{'value'});
-          $column = "LOWER($_)";
-        }
-        $record->{$_} = $record->{$_}{'value'}
-      }
+    $statement .= " $extra_sql" if defined($extra_sql);
+    $statement .= " $order_by"  if defined($order_by);
 
-      if ( ! defined( $record->{$_} ) || $record->{$_} eq '' ) {
-        if ( $op eq '=' ) {
-          if ( driver_name eq 'Pg' ) {
-            my $type = $dbdef->table($table)->column($column)->type;
-            if ( $type =~ /(int|serial)/i ) {
-              qq-( $column IS NULL )-;
-            } else {
-              qq-( $column IS NULL OR $column = '' )-;
-            }
-          } else {
-            qq-( $column IS NULL OR $column = "" )-;
-          }
-        } elsif ( $op eq '!=' ) {
-          if ( driver_name eq 'Pg' ) {
-            my $type = $dbdef->table($table)->column($column)->type;
-            if ( $type =~ /(int|serial)/i ) {
-              qq-( $column IS NOT NULL )-;
-            } else {
-              qq-( $column IS NOT NULL AND $column != '' )-;
-            }
-          } else {
-            qq-( $column IS NOT NULL AND $column != "" )-;
-          }
-        } else {
-          if ( driver_name eq 'Pg' ) {
-            qq-( $column $op '' )-;
-          } else {
-            qq-( $column $op "" )-;
-          }
-        }
-      } else {
-        "$column $op ?";
-      }
-    } @real_fields ), 
-    ( map {
-      my $op = '=';
-      my $column = $_;
-      if ( ref($record->{$_}) ) {
-        $op = $record->{$_}{'op'} if $record->{$_}{'op'};
-	if ( uc($op) eq 'ILIKE' ) {
-	  $op = 'LIKE';
-	  $record->{$_}{'value'} = lc($record->{$_}{'value'});
-	  $column = "LOWER($_)";
-	}
-	$record->{$_} = $record->{$_}{'value'};
-      }
+    push @statement, $statement;
 
-      # ... EXISTS ( SELECT name, value FROM part_virtual_field
-      #              JOIN virtual_field
-      #              ON part_virtual_field.vfieldpart = virtual_field.vfieldpart
-      #              WHERE recnum = svc_acct.svcnum
-      #              AND (name, value) = ('egad', 'brain') )
+    warn "[debug]$me $statement\n" if $DEBUG > 1 || $debug;
+ 
 
-      my $value = $record->{$_};
+    foreach my $field (
+      grep defined( $record->{$_} ) && $record->{$_} ne '', @real_fields
+    ) {
+
+      my $value = $record->{$field};
+      my $op = (ref($value) && $value->{op}) ? $value->{op} : '=';
+      $value = $value->{'value'} if ref($value);
+      my $type = dbdef->table($table)->column($field)->type;
 
-      my $subq;
+      my $bind_type = _bind_type($type, $value);
 
-      $subq = ($value ? 'EXISTS ' : 'NOT EXISTS ') .
-      "( SELECT part_virtual_field.name, virtual_field.value ".
-      "FROM part_virtual_field JOIN virtual_field ".
-      "ON part_virtual_field.vfieldpart = virtual_field.vfieldpart ".
-      "WHERE virtual_field.recnum = ${table}.${pkey} ".
-      "AND part_virtual_field.name = '${column}'".
-      ($value ? 
-        " AND virtual_field.value ${op} '${value}'"
-      : "") . ")";
-      $subq;
+      #if ( $DEBUG > 2 ) {
+      #  no strict 'refs';
+      #  %TYPE = map { &{"DBI::$_"}() => $_ } @{ $DBI::EXPORT_TAGS{sql_types} }
+      #    unless keys %TYPE;
+      #  warn "  bind_param $bind (for field $field), $value, TYPE $TYPE{$TYPE}\n";
+      #}
 
-    } @virtual_fields ) );
+      push @value, $value;
+      push @bind_type, $bind_type;
+
+    }
 
+    foreach my $param ( @$extra_param ) {
+      my $bind_type = { TYPE => SQL_VARCHAR };
+      my $value = $param;
+      if ( ref($param) ) {
+        $value = $param->[0];
+        my $type = $param->[1];
+        $bind_type = _bind_type($type, $value);
+      }
+      push @value, $value;
+      push @bind_type, $bind_type;
+    }
   }
 
-  $statement .= " $extra_sql" if defined($extra_sql);
+  my $statement = join( ' ) UNION ( ', @statement );
+  $statement = "( $statement )" if scalar(@statement) > 1;
+  $statement .= " $union_options{order_by}" if $union_options{order_by};
 
-  warn "[debug]$me $statement\n" if $DEBUG > 1;
   my $sth = $dbh->prepare($statement)
     or croak "$dbh->errstr doing $statement";
 
   my $bind = 1;
-
-  foreach my $field (
-    grep defined( $record->{$_} ) && $record->{$_} ne '', @real_fields
-  ) {
-    if ( $record->{$field} =~ /^\d+(\.\d+)?$/
-         && $dbdef->table($table)->column($field)->type =~ /(int|serial)/i
-    ) {
-      $sth->bind_param($bind++, $record->{$field}, { TYPE => SQL_INTEGER } );
-    } else {
-      $sth->bind_param($bind++, $record->{$field}, { TYPE => SQL_VARCHAR } );
-    }
+  foreach my $value ( @value ) {
+    my $bind_type = shift @bind_type;
+    $sth->bind_param($bind++, $value, $bind_type );
   }
 
 #  $sth->execute( map $record->{$_},
 #    grep defined( $record->{$_} ) && $record->{$_} ne '', @fields
 #  ) or croak "Error executing \"$statement\": ". $sth->errstr;
 
-  $sth->execute or croak "Error executing \"$statement\": ". $sth->errstr;
-
-  if ( eval 'scalar(@FS::'. $table. '::ISA);' ) {
-    @virtual_fields = "FS::$table"->virtual_fields;
-  } else {
-    cluck "warning: FS::$table not loaded; virtual fields not returned either";
-    @virtual_fields = ();
+  my $ok = $sth->execute;
+  if (!$ok) {
+    my $error = "Error executing \"$statement\"";
+    $error .= ' (' . join(', ', map {"'$_'"} @value) . ')' if @value;
+    $error .= ': '. $sth->errstr;
+    croak $error;
   }
 
+  my $table = $stable[0];
+  my $pkey = '';
+  $table = '' if grep { $_ ne $table } @stable;
+  $pkey = dbdef->table($table)->primary_key if $table;
+
   my %result;
   tie %result, "Tie::IxHash";
   my @stuff = @{ $sth->fetchall_arrayref( {} ) };
-  if($pkey) {
+  if ( $pkey && scalar(@stuff) && $stuff[0]->{$pkey} ) {
     %result = map { $_->{$pkey}, $_ } @stuff;
   } else {
     @result{@stuff} = @stuff;
@@ -364,28 +478,6 @@ sub qsearch {
 
   $sth->finish;
 
-  if ( keys(%result) and @virtual_fields ) {
-    $statement =
-      "SELECT virtual_field.recnum, part_virtual_field.name, ".
-             "virtual_field.value ".
-      "FROM part_virtual_field JOIN virtual_field USING (vfieldpart) ".
-      "WHERE part_virtual_field.dbtable = '$table' AND ".
-      "virtual_field.recnum IN (".
-      join(',', keys(%result)). ") AND part_virtual_field.name IN ('".
-      join(q!', '!, @virtual_fields) . "')";
-    warn "[debug]$me $statement\n" if $DEBUG > 1;
-    $sth = $dbh->prepare($statement) or croak "$dbh->errstr doing $statement";
-    $sth->execute or croak "Error executing \"$statement\": ". $sth->errstr;
-
-    foreach (@{ $sth->fetchall_arrayref({}) }) {
-      my $recnum = $_->{recnum};
-      my $name = $_->{name};
-      my $value = $_->{value};
-      if (exists($result{$recnum})) {
-        $result{$recnum}->{$name} = $value;
-      }
-    }
-  }
   my @return;
   if ( eval 'scalar(@FS::'. $table. '::ISA);' ) {
     if ( eval 'FS::'. $table. '->can(\'new\')' eq \&new ) {
@@ -400,23 +492,32 @@ sub qsearch {
         } values(%result);
       }
     } else {
-      warn "untested code (class FS::$table uses custom new method)";
+      #okay, its been tested
+      # warn "untested code (class FS::$table uses custom new method)";
       @return = map {
         eval 'FS::'. $table. '->new( { %{$_} } )';
       } values(%result);
     }
 
     # Check for encrypted fields and decrypt them.
-    if ($conf->exists('encryption') && eval 'defined(@FS::'. $table . '::encrypted_fields)') {
+   ## only in the local copy, not the cached object
+    if ( $conf_encryption 
+         && eval '@FS::'. $table . '::encrypted_fields' ) {
       foreach my $record (@return) {
         foreach my $field (eval '@FS::'. $table . '::encrypted_fields') {
+          next if $field eq 'payinfo' 
+                    && ($record->isa('FS::payinfo_transaction_Mixin') 
+                        || $record->isa('FS::payinfo_Mixin') )
+                    && $record->payby
+                    && !grep { $record->payby eq $_ } @encrypt_payby;
           # Set it directly... This may cause a problem in the future...
           $record->setfield($field, $record->decrypt($record->getfield($field)));
         }
       }
     }
   } else {
-    cluck "warning: FS::$table not loaded; returning FS::Record objects";
+    cluck "warning: FS::$table not loaded; returning FS::Record objects"
+      unless $nowarn_classload;
     @return = map {
       FS::Record->new( $table, { %{$_} } );
     } values(%result);
@@ -424,6 +525,311 @@ sub qsearch {
   return @return;
 }
 
+=item _query
+
+Construct the SQL statement and parameter-binding list for qsearch.  Takes
+the qsearch parameters.
+
+Returns a hash containing:
+'table':      The primary table name (if there is one).
+'statement':  The SQL statement itself.
+'bind_type':  An arrayref of bind types.
+'value':      An arrayref of parameter values.
+'cache':      The cache object, if one was passed.
+
+=cut
+
+sub _query {
+  my( @stable, @record, @cache );
+  my( @select, @extra_sql, @extra_param, @order_by, @addl_from );
+  my @debug = ();
+  my $cursor = '';
+  my %union_options = ();
+  if ( ref($_[0]) eq 'ARRAY' ) {
+    my $optlist = shift;
+    %union_options = @_;
+    foreach my $href ( @$optlist ) {
+      push @stable,      ( $href->{'table'} or die "table name is required" );
+      push @record,      ( $href->{'hashref'}     || {} );
+      push @select,      ( $href->{'select'}      || '*' );
+      push @extra_sql,   ( $href->{'extra_sql'}   || '' );
+      push @extra_param, ( $href->{'extra_param'} || [] );
+      push @order_by,    ( $href->{'order_by'}    || '' );
+      push @cache,       ( $href->{'cache_obj'}   || '' );
+      push @addl_from,   ( $href->{'addl_from'}   || '' );
+      push @debug,       ( $href->{'debug'}       || '' );
+    }
+    die "at least one hashref is required" unless scalar(@stable);
+  } elsif ( ref($_[0]) eq 'HASH' ) {
+    my $opt = shift;
+    $stable[0]      = $opt->{'table'}       or die "table name is required";
+    $record[0]      = $opt->{'hashref'}     || {};
+    $select[0]      = $opt->{'select'}      || '*';
+    $extra_sql[0]   = $opt->{'extra_sql'}   || '';
+    $extra_param[0] = $opt->{'extra_param'} || [];
+    $order_by[0]    = $opt->{'order_by'}    || '';
+    $cache[0]       = $opt->{'cache_obj'}   || '';
+    $addl_from[0]   = $opt->{'addl_from'}   || '';
+    $debug[0]       = $opt->{'debug'}       || '';
+  } else {
+    ( $stable[0],
+      $record[0],
+      $select[0],
+      $extra_sql[0],
+      $cache[0],
+      $addl_from[0]
+    ) = @_;
+    $select[0] ||= '*';
+  }
+  my $cache = $cache[0];
+
+  my @statement = ();
+  my @value = ();
+  my @bind_type = ();
+
+  my $result_table = $stable[0];
+  foreach my $stable ( @stable ) {
+    #stop altering the caller's hashref
+    my $record      = { %{ shift(@record) || {} } };#and be liberal in receipt
+    my $select      = shift @select;
+    my $extra_sql   = shift @extra_sql;
+    my $extra_param = shift @extra_param;
+    my $order_by    = shift @order_by;
+    my $cache       = shift @cache;
+    my $addl_from   = shift @addl_from;
+    my $debug       = shift @debug;
+
+    #$stable =~ /^([\w\_]+)$/ or die "Illegal table: $table";
+    #for jsearch
+    $stable =~ /^([\w\s\(\)\.\,\=]+)$/ or die "Illegal table: $stable";
+    $stable = $1;
+
+    $result_table = '' if $result_table ne $stable;
+
+    my $table = $cache ? $cache->table : $stable;
+    my $dbdef_table = dbdef->table($table)
+      or die "No schema for table $table found - ".
+             "do you need to run freeside-upgrade?";
+    my $pkey = $dbdef_table->primary_key;
+
+    my @real_fields = grep exists($record->{$_}), real_fields($table);
+
+    my $statement .= "SELECT $select FROM $stable";
+    $statement .= " $addl_from" if $addl_from;
+    if ( @real_fields ) {
+      $statement .= ' WHERE '. join(' AND ',
+        get_real_fields($table, $record, \@real_fields));
+    }
+
+    $statement .= " $extra_sql" if defined($extra_sql);
+    $statement .= " $order_by"  if defined($order_by);
+
+    push @statement, $statement;
+
+    warn "[debug]$me $statement\n" if $DEBUG > 1 || $debug;
+ 
+
+    foreach my $field (
+      grep defined( $record->{$_} ) && $record->{$_} ne '', @real_fields
+    ) {
+
+      my $value = $record->{$field};
+      my $op = (ref($value) && $value->{op}) ? $value->{op} : '=';
+      $value = $value->{'value'} if ref($value);
+      my $type = dbdef->table($table)->column($field)->type;
+
+      my $bind_type = _bind_type($type, $value);
+
+      #if ( $DEBUG > 2 ) {
+      #  no strict 'refs';
+      #  %TYPE = map { &{"DBI::$_"}() => $_ } @{ $DBI::EXPORT_TAGS{sql_types} }
+      #    unless keys %TYPE;
+      #  warn "  bind_param $bind (for field $field), $value, TYPE $TYPE{$TYPE}\n";
+      #}
+
+      push @value, $value;
+      push @bind_type, $bind_type;
+
+    }
+
+    foreach my $param ( @$extra_param ) {
+      my $bind_type = { TYPE => SQL_VARCHAR };
+      my $value = $param;
+      if ( ref($param) ) {
+        $value = $param->[0];
+        my $type = $param->[1];
+        $bind_type = _bind_type($type, $value);
+      }
+      push @value, $value;
+      push @bind_type, $bind_type;
+    }
+  }
+
+  my $statement = join( ' ) UNION ( ', @statement );
+  $statement = "( $statement )" if scalar(@statement) > 1;
+  $statement .= " $union_options{order_by}" if $union_options{order_by};
+
+  return {
+    statement => $statement,
+    bind_type => \@bind_type,
+    value     => \@value,
+    table     => $result_table,
+    cache     => $cache,
+  };
+}
+
+# qsearch should eventually use this
+sub _from_hashref {
+  my ($table, $cache, @hashrefs) = @_;
+  my @return;
+  # XXX get rid of these string evals at some point
+  # (when we have time to test it)
+  # my $class = "FS::$table" if $table;
+  # if ( $class and $class->isa('FS::Record') )
+  #   if ( $class->can('new') eq \&new )
+  #
+  if ( $table && eval 'scalar(@FS::'. $table. '::ISA);' ) {
+    if ( eval 'FS::'. $table. '->can(\'new\')' eq \&new ) {
+      #derivied class didn't override new method, so this optimization is safe
+      if ( $cache ) {
+        @return = map {
+          new_or_cached( "FS::$table", { %{$_} }, $cache )
+        } @hashrefs;
+      } else {
+        @return = map {
+          new( "FS::$table", { %{$_} } )
+        } @hashrefs;
+      }
+    } else {
+      #okay, its been tested
+      # warn "untested code (class FS::$table uses custom new method)";
+      @return = map {
+        eval 'FS::'. $table. '->new( { %{$_} } )';
+      } @hashrefs;
+    }
+
+    # Check for encrypted fields and decrypt them.
+   ## only in the local copy, not the cached object
+    if ( $conf_encryption 
+         && eval '@FS::'. $table . '::encrypted_fields' ) {
+      foreach my $record (@return) {
+        foreach my $field (eval '@FS::'. $table . '::encrypted_fields') {
+          next if $field eq 'payinfo' 
+                    && ($record->isa('FS::payinfo_transaction_Mixin') 
+                        || $record->isa('FS::payinfo_Mixin') )
+                    && $record->payby
+                    && !grep { $record->payby eq $_ } @encrypt_payby;
+          # Set it directly... This may cause a problem in the future...
+          $record->setfield($field, $record->decrypt($record->getfield($field)));
+        }
+      }
+    }
+  } else {
+    cluck "warning: FS::$table not loaded; returning FS::Record objects"
+      unless $nowarn_classload;
+    @return = map {
+      FS::Record->new( $table, { %{$_} } );
+    } @hashrefs;
+  }
+  return @return;
+}
+
+## makes this easier to read
+
+sub get_real_fields {
+  my $table = shift;
+  my $record = shift;
+  my $real_fields = shift;
+
+   ## this huge map was previously inline, just broke it out to help read the qsearch method, should be optimized for readability
+      return ( 
+      map {
+
+      my $op = '=';
+      my $column = $_;
+      my $type = dbdef->table($table)->column($column)->type;
+      my $value = $record->{$column};
+      $value = $value->{'value'} if ref($value);
+      if ( ref($record->{$_}) ) {
+        $op = $record->{$_}{'op'} if $record->{$_}{'op'};
+        #$op = 'LIKE' if $op =~ /^ILIKE$/i && driver_name ne 'Pg';
+        if ( uc($op) eq 'ILIKE' ) {
+          $op = 'LIKE';
+          $record->{$_}{'value'} = lc($record->{$_}{'value'});
+          $column = "LOWER($_)";
+        }
+        $record->{$_} = $record->{$_}{'value'}
+      }
+
+      if ( ! defined( $record->{$_} ) || $record->{$_} eq '' ) {
+        if ( $op eq '=' ) {
+          if ( driver_name eq 'Pg' ) {
+            if ( $type =~ /(int|numeric|real|float4|(big)?serial)/i ) {
+              qq-( $column IS NULL )-;
+            } else {
+              qq-( $column IS NULL OR $column = '' )-;
+            }
+          } else {
+            qq-( $column IS NULL OR $column = "" )-;
+          }
+        } elsif ( $op eq '!=' ) {
+          if ( driver_name eq 'Pg' ) {
+            if ( $type =~ /(int|numeric|real|float4|(big)?serial)/i ) {
+              qq-( $column IS NOT NULL )-;
+            } else {
+              qq-( $column IS NOT NULL AND $column != '' )-;
+            }
+          } else {
+            qq-( $column IS NOT NULL AND $column != "" )-;
+          }
+        } else {
+          if ( driver_name eq 'Pg' ) {
+            qq-( $column $op '' )-;
+          } else {
+            qq-( $column $op "" )-;
+          }
+        }
+      } elsif ( $op eq '!=' ) {
+        qq-( $column IS NULL OR $column != ? )-;
+      #if this needs to be re-enabled, it needs to use a custom op like
+      #"APPROX=" or something (better name?, not '=', to avoid affecting other
+      # searches
+      #} elsif ( $op eq 'APPROX=' && _is_fs_float( $type, $value ) ) {
+      #  ( "$column <= ?", "$column >= ?" );
+      } else {
+        "$column $op ?";
+      }
+    } @{ $real_fields } );  
+}
+
+=item by_key PRIMARY_KEY_VALUE
+
+This is a class method that returns the record with the given primary key
+value.  This method is only useful in FS::Record subclasses.  For example:
+
+  my $cust_main = FS::cust_main->by_key(1); # retrieve customer with custnum 1
+
+is equivalent to:
+
+  my $cust_main = qsearchs('cust_main', { 'custnum' => 1 } );
+
+=cut
+
+sub by_key {
+  my ($class, $pkey_value) = @_;
+
+  my $table = $class->table
+    or croak "No table for $class found";
+
+  my $dbdef_table = dbdef->table($table)
+    or die "No schema for table $table found - ".
+           "do you need to create it or run dbdef-create?";
+  my $pkey = $dbdef_table->primary_key
+    or die "No primary key for table $table";
+
+  return qsearchs($table, { $pkey => $pkey_value });
+}
+
 =item jsearch TABLE, HASHREF, SELECT, EXTRA_SQL, PRIMARY_TABLE, PRIMARY_KEY
 
 Experimental JOINed search method.  Using this method, you can execute a
@@ -445,7 +851,7 @@ sub jsearch {
   );
 }
 
-=item qsearchs TABLE, HASHREF, SELECT, EXTRA_SQL, CACHE_OBJ, ADDL_FROM
+=item qsearchs PARAMS_HASHREF | TABLE, HASHREF, SELECT, EXTRA_SQL, CACHE_OBJ, ADDL_FROM
 
 Same as qsearch, except that if more than one record matches, it B<carp>s but
 returns the first.  If this happens, you either made a logic error in asking
@@ -489,7 +895,18 @@ Returns the DBIx::DBSchema::Table object for the table.
 sub dbdef_table {
   my($self)=@_;
   my($table)=$self->table;
-  $dbdef->table($table);
+  dbdef->table($table);
+}
+
+=item primary_key
+
+Returns the primary key for the table.
+
+=cut
+
+sub primary_key {
+  my $self = shift;
+  my $pkey = $self->dbdef_table->primary_key;
 }
 
 =item get, getfield COLUMN
@@ -528,6 +945,17 @@ sub setfield {
   $self->set(@_);
 }
 
+=item exists COLUMN
+
+Returns true if the column/field/key COLUMN exists.
+
+=cut
+
+sub exists {
+  my($self,$field) = @_;
+  exists($self->{Hash}->{$field});
+}
+
 =item AUTLOADED METHODS
 
 $record->column is a synonym for $record->get('column');
@@ -543,11 +971,11 @@ sub AUTOLOAD {
   $field =~ s/.*://;
   if ( defined($value) ) {
     confess "errant AUTOLOAD $field for $self (arg $value)"
-      unless ref($self) && $self->can('setfield');
+      unless blessed($self) && $self->can('setfield');
     $self->setfield($field,$value);
   } else {
     confess "errant AUTOLOAD $field for $self (no args)"
-      unless ref($self) && $self->can('getfield');
+      unless blessed($self) && $self->can('getfield');
     $self->getfield($field);
   }    
 }
@@ -606,37 +1034,103 @@ sub modified {
   $self->{'modified'};
 }
 
-=item insert
+=item select_for_update
 
-Inserts this record to the database.  If there is an error, returns the error,
-otherwise returns false.
+Selects this record with the SQL "FOR UPDATE" command.  This can be useful as
+a mutex.
 
 =cut
 
-sub insert {
+sub select_for_update {
   my $self = shift;
-  my $saved = {};
+  my $primary_key = $self->primary_key;
+  qsearchs( {
+    'select'    => '*',
+    'table'     => $self->table,
+    'hashref'   => { $primary_key => $self->$primary_key() },
+    'extra_sql' => 'FOR UPDATE',
+  } );
+}
 
-  my $error = $self->check;
-  return $error if $error;
+=item lock_table
 
-  #single-field unique keys are given a value if false
-  #(like MySQL's AUTO_INCREMENT or Pg SERIAL)
-  foreach ( $self->dbdef_table->unique->singles ) {
-    $self->unique($_) unless $self->getfield($_);
-  }
+Locks this table with a database-driver specific lock method.  This is used
+as a mutex in order to do a duplicate search.
 
-  #and also the primary key, if the database isn't going to
+For PostgreSQL, does "LOCK TABLE tablename IN SHARE ROW EXCLUSIVE MODE".
+
+For MySQL, does a SELECT FOR UPDATE on the duplicate_lock table.
+
+Errors are fatal; no useful return value.
+
+Note: To use this method for new tables other than svc_acct and svc_phone,
+edit freeside-upgrade and add those tables to the duplicate_lock list.
+
+=cut
+
+sub lock_table {
+  my $self = shift;
+  my $table = $self->table;
+
+  warn "$me locking $table table\n" if $DEBUG;
+
+  if ( driver_name =~ /^Pg/i ) {
+
+    dbh->do("LOCK TABLE $table IN SHARE ROW EXCLUSIVE MODE")
+      or die dbh->errstr;
+
+  } elsif ( driver_name =~ /^mysql/i ) {
+
+    dbh->do("SELECT * FROM duplicate_lock
+               WHERE lockname = '$table'
+	       FOR UPDATE"
+	   ) or die dbh->errstr;
+
+  } else {
+
+    die "unknown database ". driver_name. "; don't know how to lock table";
+
+  }
+
+  warn "$me acquired $table table lock\n" if $DEBUG;
+
+}
+
+=item insert
+
+Inserts this record to the database.  If there is an error, returns the error,
+otherwise returns false.
+
+=cut
+
+sub insert {
+  my $self = shift;
+  my $saved = {};
+
+  warn "$self -> insert" if $DEBUG;
+
+  my $error = $self->check;
+  return $error if $error;
+
+  #single-field non-null unique keys are given a value if empty
+  #(like MySQL's AUTO_INCREMENT or Pg SERIAL)
+  foreach ( $self->dbdef_table->unique_singles) {
+    next if $self->getfield($_);
+    next if $self->dbdef_table->column($_)->null eq 'NULL';
+    $self->unique($_);
+  }
+
+  #and also the primary key, if the database isn't going to
   my $primary_key = $self->dbdef_table->primary_key;
   my $db_seq = 0;
   if ( $primary_key ) {
     my $col = $self->dbdef_table->column($primary_key);
-    
+
     $db_seq =
-      uc($col->type) eq 'SERIAL'
+      uc($col->type) =~ /^(BIG)?SERIAL\d?/
       || ( driver_name eq 'Pg'
              && defined($col->default)
-             && $col->default =~ /^nextval\(/i
+             && $col->quoted_default =~ /^nextval\(/i
          )
       || ( driver_name eq 'mysql'
              && defined($col->local)
@@ -646,31 +1140,43 @@ sub insert {
   }
 
   my $table = $self->table;
-
   
   # Encrypt before the database
-  if ($conf->exists('encryption') && defined(eval '@FS::'. $table . 'encrypted_fields')) {
+  if (    defined(eval '@FS::'. $table . '::encrypted_fields')
+       && scalar( eval '@FS::'. $table . '::encrypted_fields')
+       && $conf->exists('encryption')
+  ) {
     foreach my $field (eval '@FS::'. $table . '::encrypted_fields') {
-      $self->{'saved'} = $self->getfield($field);
-      $self->setfield($field, $self->enrypt($self->getfield($field)));
+      next if $field eq 'payinfo' 
+                && ($self->isa('FS::payinfo_transaction_Mixin') 
+                    || $self->isa('FS::payinfo_Mixin') )
+                && $self->payby
+                && !grep { $self->payby eq $_ } @encrypt_payby;
+      $saved->{$field} = $self->getfield($field);
+      $self->setfield($field, $self->encrypt($self->getfield($field)));
     }
   }
 
-
   #false laziness w/delete
   my @real_fields =
-    grep defined($self->getfield($_)) && $self->getfield($_) ne "",
+    grep { defined($self->getfield($_)) && $self->getfield($_) ne "" }
     real_fields($table)
   ;
   my @values = map { _quote( $self->getfield($_), $table, $_) } @real_fields;
   #eslaf
 
-  my $statement = "INSERT INTO $table ( ".
-      join( ', ', @real_fields ).
-    ") VALUES (".
-      join( ', ', @values ).
-    ")"
-  ;
+  my $statement = "INSERT INTO $table ";
+  if ( @real_fields ) {
+    $statement .=
+      "( ".
+        join( ', ', @real_fields ).
+      ") VALUES (".
+        join( ', ', @values ).
+       ")"
+    ;
+  } else {
+    $statement .= 'DEFAULT VALUES';
+  }
   warn "[debug]$me $statement\n" if $DEBUG > 1;
   my $sth = dbh->prepare($statement) or return dbh->errstr;
 
@@ -683,18 +1189,31 @@ sub insert {
 
   $sth->execute or return $sth->errstr;
 
-  my $insertid = '';
-  if ( $db_seq ) { # get inserted id from the database, if applicable
+  # get inserted id from the database, if applicable & needed
+  if ( $db_seq && ! $self->getfield($primary_key) ) {
     warn "[debug]$me retreiving sequence from database\n" if $DEBUG;
+  
+    my $insertid = '';
+
     if ( driver_name eq 'Pg' ) {
 
-      my $oid = $sth->{'pg_oid_status'};
-      my $i_sql = "SELECT $primary_key FROM $table WHERE oid = ?";
+      #my $oid = $sth->{'pg_oid_status'};
+      #my $i_sql = "SELECT $primary_key FROM $table WHERE oid = ?";
+
+      my $default = $self->dbdef_table->column($primary_key)->quoted_default;
+      unless ( $default =~ /^nextval\(\(?'"?([\w\.]+)"?'/i ) {
+        dbh->rollback if $FS::UID::AutoCommit;
+        return "can't parse $table.$primary_key default value".
+               " for sequence name: $default";
+      }
+      my $sequence = $1;
+
+      my $i_sql = "SELECT currval('$sequence')";
       my $i_sth = dbh->prepare($i_sql) or do {
         dbh->rollback if $FS::UID::AutoCommit;
         return dbh->errstr;
       };
-      $i_sth->execute($oid) or do {
+      $i_sth->execute() or do { #$i_sth->execute($oid)
         dbh->rollback if $FS::UID::AutoCommit;
         return $i_sth->errstr;
       };
@@ -720,43 +1239,19 @@ sub insert {
       }
 
     } else {
+
       dbh->rollback if $FS::UID::AutoCommit;
       return "don't know how to retreive inserted ids from ". driver_name. 
              ", try using counterfiles (maybe run dbdef-create?)";
-    }
-    $self->setfield($primary_key, $insertid);
-  }
-
-  my @virtual_fields = 
-      grep defined($self->getfield($_)) && $self->getfield($_) ne "",
-          $self->virtual_fields;
-  if (@virtual_fields) {
-    my %v_values = map { $_, $self->getfield($_) } @virtual_fields;
 
-    my $vfieldpart = $self->vfieldpart_hashref;
-
-    my $v_statement = "INSERT INTO virtual_field(recnum, vfieldpart, value) ".
-                    "VALUES (?, ?, ?)";
+    }
 
-    my $v_sth = dbh->prepare($v_statement) or do {
-      dbh->rollback if $FS::UID::AutoCommit;
-      return dbh->errstr;
-    };
+    $self->setfield($primary_key, $insertid);
 
-    foreach (keys(%v_values)) {
-      $v_sth->execute($self->getfield($primary_key),
-                      $vfieldpart->{$_},
-                      $v_values{$_})
-      or do {
-        dbh->rollback if $FS::UID::AutoCommit;
-        return $v_sth->errstr;
-      };
-    }
   }
 
-
   my $h_sth;
-  if ( defined $dbdef->table('h_'. $table) ) {
+  if ( defined( dbdef->table('h_'. $table) ) && ! $no_history ) {
     my $h_statement = $self->_h_statement('insert');
     warn "[debug]$me $h_statement\n" if $DEBUG > 2;
     $h_sth = dbh->prepare($h_statement) or do {
@@ -817,7 +1312,7 @@ sub delete {
   my $sth = dbh->prepare($statement) or return dbh->errstr;
 
   my $h_sth;
-  if ( defined $dbdef->table('h_'. $self->table) ) {
+  if ( defined dbdef->table('h_'. $self->table) ) {
     my $h_statement = $self->_h_statement('delete');
     warn "[debug]$me $h_statement\n" if $DEBUG > 2;
     $h_sth = dbh->prepare($h_statement) or return dbh->errstr;
@@ -826,17 +1321,6 @@ sub delete {
   }
 
   my $primary_key = $self->dbdef_table->primary_key;
-  my $v_sth;
-  my @del_vfields;
-  my $vfp = $self->vfieldpart_hashref;
-  foreach($self->virtual_fields) {
-    next if $self->getfield($_) eq '';
-    unless(@del_vfields) {
-      my $st = "DELETE FROM virtual_field WHERE recnum = ? AND vfieldpart = ?";
-      $v_sth = dbh->prepare($st) or return dbh->errstr;
-    }
-    push @del_vfields, $_;
-  }
 
   local $SIG{HUP} = 'IGNORE';
   local $SIG{INT} = 'IGNORE';
@@ -848,9 +1332,6 @@ sub delete {
   my $rc = $sth->execute or return $sth->errstr;
   #not portable #return "Record not found, statement:\n$statement" if $rc eq "0E0";
   $h_sth->execute or return $h_sth->errstr if $h_sth;
-  $v_sth->execute($self->getfield($primary_key), $vfp->{$_}) 
-    or return $v_sth->errstr 
-        foreach (@del_vfields);
   
   dbh->commit or croak dbh->errstr if $FS::UID::AutoCommit;
 
@@ -879,30 +1360,23 @@ returns the error, otherwise returns false.
 =cut
 
 sub replace {
-  my $new = shift;
-  my $old = shift;  
-
-  my $saved = {};
+  my ($new, $old) = (shift, shift);
 
-  if (!defined($old)) { 
-    warn "[debug]$me replace called with no arguments; autoloading old record\n"
-     if $DEBUG;
-    my $primary_key = $new->dbdef_table->primary_key;
-    if ( $primary_key ) {
-      $old = qsearchs($new->table, { $primary_key => $new->$primary_key() } )
-        or croak "can't find ". $new->table. ".$primary_key ".
-                 $new->$primary_key();
-    } else {
-      croak $new->table. " has no primary key; pass old record as argument";
-    }
-  }
+  $old = $new->replace_old unless defined($old);
 
   warn "[debug]$me $new ->replace $old\n" if $DEBUG;
 
+  if ( $new->can('replace_check') ) {
+    my $error = $new->replace_check($old);
+    return $error if $error;
+  }
+
   return "Records not in same table!" unless $new->table eq $old->table;
 
   my $primary_key = $old->dbdef_table->primary_key;
-  return "Can't change $primary_key"
+  return "Can't change primary key $primary_key ".
+         'from '. $old->getfield($primary_key).
+         ' to ' . $new->getfield($primary_key)
     if $primary_key
        && ( $old->getfield($primary_key) ne $new->getfield($primary_key) );
 
@@ -910,8 +1384,17 @@ sub replace {
   return $error if $error;
   
   # Encrypt for replace
-  if ($conf->exists('encryption') && defined(eval '@FS::'. $new->table . 'encrypted_fields')) {
+  my $saved = {};
+  if (    $conf->exists('encryption')
+       && defined(eval '@FS::'. $new->table . '::encrypted_fields')
+       && scalar( eval '@FS::'. $new->table . '::encrypted_fields')
+  ) {
     foreach my $field (eval '@FS::'. $new->table . '::encrypted_fields') {
+      next if $field eq 'payinfo' 
+                && ($new->isa('FS::payinfo_transaction_Mixin') 
+                    || $new->isa('FS::payinfo_Mixin') )
+                && $new->payby
+                && !grep { $new->payby eq $_ } @encrypt_payby;
       $saved->{$field} = $new->getfield($field);
       $new->setfield($field, $new->encrypt($new->getfield($field)));
     }
@@ -921,8 +1404,11 @@ sub replace {
   my %diff = map { ($new->getfield($_) ne $old->getfield($_))
                    ? ($_, $new->getfield($_)) : () } $old->fields;
                    
-  unless ( keys(%diff) ) {
-    carp "[warning]$me $new -> replace $old: records identical";
+  unless (keys(%diff) || $no_update_diff ) {
+    carp "[warning]$me ". ref($new)."->replace ".
+           ( $primary_key ? "$primary_key ".$new->get($primary_key) : '' ).
+         ": records identical"
+      unless $nowarn_identical;
     return '';
   }
 
@@ -939,7 +1425,7 @@ sub replace {
          #false laziness w/qsearch
          if ( driver_name eq 'Pg' ) {
             my $type = $old->dbdef_table->column($_)->type;
-            if ( $type =~ /(int|serial)/i ) {
+            if ( $type =~ /(int|(big)?serial)/i ) {
               qq-( $_ IS NULL )-;
             } else {
               qq-( $_ IS NULL OR $_ = '' )-;
@@ -959,7 +1445,7 @@ sub replace {
   my $sth = dbh->prepare($statement) or return dbh->errstr;
 
   my $h_old_sth;
-  if ( defined $dbdef->table('h_'. $old->table) ) {
+  if ( defined dbdef->table('h_'. $old->table) ) {
     my $h_old_statement = $old->_h_statement('replace_old');
     warn "[debug]$me $h_old_statement\n" if $DEBUG > 2;
     $h_old_sth = dbh->prepare($h_old_statement) or return dbh->errstr;
@@ -968,7 +1454,7 @@ sub replace {
   }
 
   my $h_new_sth;
-  if ( defined $dbdef->table('h_'. $new->table) ) {
+  if ( defined dbdef->table('h_'. $new->table) ) {
     my $h_new_statement = $new->_h_statement('replace_new');
     warn "[debug]$me $h_new_statement\n" if $DEBUG > 2;
     $h_new_sth = dbh->prepare($h_new_statement) or return dbh->errstr;
@@ -976,44 +1462,6 @@ sub replace {
     $h_new_sth = '';
   }
 
-  # For virtual fields we have three cases with different SQL 
-  # statements: add, replace, delete
-  my $v_add_sth;
-  my $v_rep_sth;
-  my $v_del_sth;
-  my (@add_vfields, @rep_vfields, @del_vfields);
-  my $vfp = $old->vfieldpart_hashref;
-  foreach(grep { exists($diff{$_}) } $new->virtual_fields) {
-    if($diff{$_} eq '') {
-      # Delete
-      unless(@del_vfields) {
-        my $st = "DELETE FROM virtual_field WHERE recnum = ? ".
-                 "AND vfieldpart = ?";
-        warn "[debug]$me $st\n" if $DEBUG > 2;
-        $v_del_sth = dbh->prepare($st) or return dbh->errstr;
-      }
-      push @del_vfields, $_;
-    } elsif($old->getfield($_) eq '') {
-      # Add
-      unless(@add_vfields) {
-        my $st = "INSERT INTO virtual_field (value, recnum, vfieldpart) ".
-	         "VALUES (?, ?, ?)";
-        warn "[debug]$me $st\n" if $DEBUG > 2;
-        $v_add_sth = dbh->prepare($st) or return dbh->errstr;
-      }
-      push @add_vfields, $_;
-    } else {
-      # Replace
-      unless(@rep_vfields) {
-        my $st = "UPDATE virtual_field SET value = ? ".
-                 "WHERE recnum = ? AND vfieldpart = ?";
-        warn "[debug]$me $st\n" if $DEBUG > 2;
-        $v_rep_sth = dbh->prepare($st) or return dbh->errstr;
-      }
-      push @rep_vfields, $_;
-    }
-  }
-
   local $SIG{HUP} = 'IGNORE';
   local $SIG{INT} = 'IGNORE';
   local $SIG{QUIT} = 'IGNORE'; 
@@ -1026,23 +1474,6 @@ sub replace {
   $h_old_sth->execute or return $h_old_sth->errstr if $h_old_sth;
   $h_new_sth->execute or return $h_new_sth->errstr if $h_new_sth;
 
-  $v_del_sth->execute($old->getfield($primary_key),
-                      $vfp->{$_})
-        or return $v_del_sth->errstr
-      foreach(@del_vfields);
-
-  $v_add_sth->execute($new->getfield($_),
-                      $old->getfield($primary_key),
-                      $vfp->{$_})
-        or return $v_add_sth->errstr
-      foreach(@add_vfields);
-
-  $v_rep_sth->execute($new->getfield($_),
-                      $old->getfield($primary_key),
-                      $vfp->{$_})
-        or return $v_rep_sth->errstr
-      foreach(@rep_vfields);
-
   dbh->commit or croak dbh->errstr if $FS::UID::AutoCommit;
 
   # Now that it has been saved, reset the encrypted fields so that $new 
@@ -1055,6 +1486,22 @@ sub replace {
 
 }
 
+sub replace_old {
+  my( $self ) = shift;
+  warn "[$me] replace called with no arguments; autoloading old record\n"
+    if $DEBUG;
+
+  my $primary_key = $self->dbdef_table->primary_key;
+  if ( $primary_key ) {
+    $self->by_key( $self->$primary_key() ) #this is what's returned
+      or croak "can't find ". $self->table. ".$primary_key ".
+        $self->$primary_key();
+  } else {
+    croak $self->table. " has no primary key; pass old record as argument";
+  }
+
+}
+
 =item rep
 
 Depriciated (use replace instead).
@@ -1068,235 +1515,919 @@ sub rep {
 
 =item check
 
-Checks virtual fields (using check_blocks).  Subclasses should still provide 
-a check method to validate real fields, foreign keys, etc., and call this 
-method via $self->SUPER::check.
+Checks custom fields. Subclasses should still provide a check method to validate
+non-custom fields, foreign keys, etc., and call this method via $self->SUPER::check.
+
+=cut
+
+sub check { 
+    my $self = shift;
+    foreach my $field ($self->virtual_fields) {
+        my $error = $self->ut_textn($field);
+        return $error if $error;
+    }
+    '';
+}
 
-(FIXME: Should this method try to make sure that it I<is> being called from 
-a subclass's check method, to keep the current semantics as far as possible?)
+=item virtual_fields [ TABLE ]
+
+Returns a list of virtual fields defined for the table.  This should not 
+be exported, and should only be called as an instance or class method.
 
 =cut
 
-sub check {
-  #confess "FS::Record::check not implemented; supply one in subclass!";
+sub virtual_fields {
   my $self = shift;
+  my $table;
+  $table = $self->table or confess "virtual_fields called on non-table";
 
-  foreach my $field ($self->virtual_fields) {
-    for ($self->getfield($field)) {
-      # See notes on check_block in FS::part_virtual_field.
-      eval $self->pvf($field)->check_block;
-      if ( $@ ) {
-        #this is bad, probably want to follow the stack backtrace up and see
-        #wtf happened
-        my $err = "Fatal error checking $field for $self";
-        cluck "$err: $@";
-        return "$err (see log for backtrace): $@";
+  confess "Unknown table $table" unless dbdef->table($table);
 
-      }
-      $self->setfield($field, $_);
-    }
+  return () unless dbdef->table('part_virtual_field');
+
+  unless ( $virtual_fields_cache{$table} ) {
+    my $concat = [ "'cf_'", "name" ];
+    my $query = "SELECT ".concat_sql($concat).' from part_virtual_field ' .
+                "WHERE dbtable = '$table'";
+    my $dbh = dbh;
+    my $result = $dbh->selectcol_arrayref($query);
+    confess "Error executing virtual fields query: $query: ". $dbh->errstr
+      if $dbh->err;
+    $virtual_fields_cache{$table} = $result;
   }
-  '';
+
+  @{$virtual_fields_cache{$table}};
+
 }
 
-sub _h_statement {
-  my( $self, $action ) = @_;
+=item process_batch_import JOB OPTIONS_HASHREF PARAMS
 
-  my @fields =
-    grep defined($self->getfield($_)) && $self->getfield($_) ne "",
-    real_fields($self->table);
-  ;
-  my @values = map { _quote( $self->getfield($_), $self->table, $_) } @fields;
+Processes a batch import as a queued JSRPC job
 
-  "INSERT INTO h_". $self->table. " ( ".
-      join(', ', qw(history_date history_user history_action), @fields ).
-    ") VALUES (".
-      join(', ', time, dbh->quote(getotaker()), dbh->quote($action), @values).
-    ")"
-  ;
-}
+JOB is an FS::queue entry.
 
-=item unique COLUMN
+OPTIONS_HASHREF can have the following keys:
 
-B<Warning>: External use is B<deprecated>.  
+=over 4
 
-Replaces COLUMN in record with a unique number, using counters in the
-filesystem.  Used by the B<insert> method on single-field unique columns
-(see L<DBIx::DBSchema::Table>) and also as a fallback for primary keys
-that aren't SERIAL (Pg) or AUTO_INCREMENT (mysql).
+=item table
 
-Returns the new value.
+Table name (required).
 
-=cut
+=item params
 
-sub unique {
-  my($self,$field) = @_;
-  my($table)=$self->table;
+Listref of field names for static fields.  They will be given values from the
+PARAMS hashref and passed as a "params" hashref to batch_import.
 
-  croak "Unique called on field $field, but it is ",
-        $self->getfield($field),
-        ", not null!"
-    if $self->getfield($field);
+=item formats
 
-  #warn "table $table is tainted" if is_tainted($table);
-  #warn "field $field is tainted" if is_tainted($field);
+Formats hashref.  Keys are field names, values are listrefs that define the
+format.
 
-  my($counter) = new File::CounterFile "$table.$field",0;
-# hack for web demo
-#  getotaker() =~ /^([\w\-]{1,16})$/ or die "Illegal CGI REMOTE_USER!";
-#  my($user)=$1;
-#  my($counter) = new File::CounterFile "$user/$table.$field",0;
-# endhack
+Each listref value can be a column name or a code reference.  Coderefs are run
+with the row object, data and a FS::Conf object as the three parameters.
+For example, this coderef does the same thing as using the "columnname" string:
 
-  my $index = $counter->inc;
-  $index = $counter->inc while qsearchs($table, { $field=>$index } );
+  sub {
+    my( $record, $data, $conf ) = @_;
+    $record->columnname( $data );
+  },
 
-  $index =~ /^(\d*)$/;
-  $index=$1;
+Coderefs are run after all "column name" fields are assigned.
 
-  $self->setfield($field,$index);
+=item format_types
 
-}
+Optional format hashref of types.  Keys are field names, values are "csv",
+"xls" or "fixedlength".  Overrides automatic determination of file type
+from extension.
 
-=item ut_float COLUMN
+=item format_headers
 
-Check/untaint floating point numeric data: 1.1, 1, 1.1e10, 1e10.  May not be
-null.  If there is an error, returns the error, otherwise returns false.
+Optional format hashref of header lines.  Keys are field names, values are 0
+for no header, 1 to ignore the first line, or to higher numbers to ignore that
+number of lines.
 
-=cut
+=item format_sep_chars
 
-sub ut_float {
-  my($self,$field)=@_ ;
-  ($self->getfield($field) =~ /^(\d+\.\d+)$/ ||
-   $self->getfield($field) =~ /^(\d+)$/ ||
-   $self->getfield($field) =~ /^(\d+\.\d+e\d+)$/ ||
-   $self->getfield($field) =~ /^(\d+e\d+)$/)
-    or return "Illegal or empty (float) $field: ". $self->getfield($field);
-  $self->setfield($field,$1);
-  '';
-}
+Optional format hashref of CSV sep_chars.  Keys are field names, values are the
+CSV separation character.
 
-=item ut_snumber COLUMN
+=item format_fixedlenth_formats
 
-Check/untaint signed numeric data (whole numbers).  May not be null.  If there
-is an error, returns the error, otherwise returns false.
+Optional format hashref of fixed length format defintiions.  Keys are field
+names, values Parse::FixedLength listrefs of field definitions.
 
-=cut
+=item default_csv
 
-sub ut_snumber {
-  my($self, $field) = @_;
-  $self->getfield($field) =~ /^(-?)\s*(\d+)$/
-    or return "Illegal or empty (numeric) $field: ". $self->getfield($field);
-  $self->setfield($field, "$1$2");
-  '';
-}
+Set true to default to CSV file type if the filename does not contain a
+recognizable ".csv" or ".xls" extension (and type is not pre-specified by
+format_types).
 
-=item ut_number COLUMN
+=back
 
-Check/untaint simple numeric data (whole numbers).  May not be null.  If there
-is an error, returns the error, otherwise returns false.
+PARAMS is a base64-encoded Storable string containing the POSTed data as
+a hash ref.  It normally contains at least one field, "uploaded files",
+generated by /elements/file-upload.html and containing the list of uploaded
+files.  Currently only supports a single file named "file".
 
 =cut
 
-sub ut_number {
-  my($self,$field)=@_;
-  $self->getfield($field) =~ /^(\d+)$/
-    or return "Illegal or empty (numeric) $field: ". $self->getfield($field);
-  $self->setfield($field,$1);
-  '';
-}
+use Storable qw(thaw);
+use Data::Dumper;
+use MIME::Base64;
+sub process_batch_import {
+  my($job, $opt) = ( shift, shift );
 
-=item ut_numbern COLUMN
+  my $table = $opt->{table};
+  my @pass_params = $opt->{params} ? @{ $opt->{params} } : ();
+  my %formats = %{ $opt->{formats} };
 
-Check/untaint simple numeric data (whole numbers).  May be null.  If there is
-an error, returns the error, otherwise returns false.
+  my $param = thaw(decode_base64(shift));
+  warn Dumper($param) if $DEBUG;
+  
+  my $files = $param->{'uploaded_files'}
+    or die "No files provided.\n";
+
+  my (%files) = map { /^(\w+):([\.\w]+)$/ ? ($1,$2):() } split /,/, $files;
+
+  my $dir = '%%%FREESIDE_CACHE%%%/cache.'. $FS::UID::datasrc. '/';
+  my $file = $dir. $files{'file'};
+
+  my %iopt = (
+    #class-static
+    table                      => $table,
+    formats                    => \%formats,
+    format_types               => $opt->{format_types},
+    format_headers             => $opt->{format_headers},
+    format_sep_chars           => $opt->{format_sep_chars},
+    format_fixedlength_formats => $opt->{format_fixedlength_formats},
+    format_xml_formats         => $opt->{format_xml_formats},
+    format_asn_formats         => $opt->{format_asn_formats},
+    format_row_callbacks       => $opt->{format_row_callbacks},
+    #per-import
+    job                        => $job,
+    file                       => $file,
+    #type                       => $type,
+    format                     => $param->{format},
+    params                     => { map { $_ => $param->{$_} } @pass_params },
+    #?
+    default_csv                => $opt->{default_csv},
+    postinsert_callback        => $opt->{postinsert_callback},
+  );
 
-=cut
+  if ( $opt->{'batch_namecol'} ) {
+    $iopt{'batch_namevalue'} = $param->{ $opt->{'batch_namecol'} };
+    $iopt{$_} = $opt->{$_} foreach qw( batch_keycol batch_table batch_namecol );
+  }
 
-sub ut_numbern {
-  my($self,$field)=@_;
-  $self->getfield($field) =~ /^(\d*)$/
-    or return "Illegal (numeric) $field: ". $self->getfield($field);
-  $self->setfield($field,$1);
-  '';
+  my $error = FS::Record::batch_import( \%iopt );
+
+  unlink $file;
+
+  die "$error\n" if $error;
 }
 
-=item ut_money COLUMN
+=item batch_import PARAM_HASHREF
 
-Check/untaint monetary numbers.  May be negative.  Set to 0 if null.  If there
-is an error, returns the error, otherwise returns false.
+Class method for batch imports.  Available params:
 
-=cut
+=over 4
 
-sub ut_money {
-  my($self,$field)=@_;
-  $self->setfield($field, 0) if $self->getfield($field) eq '';
-  $self->getfield($field) =~ /^(\-)? ?(\d*)(\.\d{2})?$/
-    or return "Illegal (money) $field: ". $self->getfield($field);
-  #$self->setfield($field, "$1$2$3" || 0);
-  $self->setfield($field, ( ($1||''). ($2||''). ($3||'') ) || 0);
-  '';
-}
+=item table
 
-=item ut_text COLUMN
+=item format - usual way to specify import, with this format string selecting data from the formats and format_* info hashes
 
-Check/untaint text.  Alphanumerics, spaces, and the following punctuation
-symbols are currently permitted: ! @ # $ % & ( ) - + ; : ' " , . ? / =
-May not be null.  If there is an error, returns the error, otherwise returns
-false.
+=item formats
 
-=cut
+=item format_types
 
-sub ut_text {
-  my($self,$field)=@_;
-  #warn "msgcat ". \&msgcat. "\n";
-  #warn "notexist ". \&notexist. "\n";
-  #warn "AUTOLOAD ". \&AUTOLOAD. "\n";
-  $self->getfield($field) =~ /^([\w \!\@\#\$\%\&\(\)\-\+\;\:\'\"\,\.\?\/\=]+)$/
-    or return gettext('illegal_or_empty_text'). " $field: ".
-               $self->getfield($field);
-  $self->setfield($field,$1);
-  '';
-}
+=item format_headers
 
-=item ut_textn COLUMN
+=item format_sep_chars
 
-Check/untaint text.  Alphanumerics, spaces, and the following punctuation
-symbols are currently permitted: ! @ # $ % & ( ) - + ; : ' " , . ? /
-May be null.  If there is an error, returns the error, otherwise returns false.
+=item format_fixedlength_formats
 
-=cut
+=item format_row_callbacks
 
-sub ut_textn {
-  my($self,$field)=@_;
-  $self->getfield($field) =~ /^([\w \!\@\#\$\%\&\(\)\-\+\;\:\'\"\,\.\?\/\=]*)$/
-    or return gettext('illegal_text'). " $field: ". $self->getfield($field);
-  $self->setfield($field,$1);
-  '';
-}
+=item fields - Alternate way to specify import, specifying import fields directly as a listref
 
-=item ut_alpha COLUMN
+=item preinsert_callback
 
-Check/untaint alphanumeric strings (no spaces).  May not be null.  If there is
-an error, returns the error, otherwise returns false.
+=item postinsert_callback
 
-=cut
+=item params
 
-sub ut_alpha {
-  my($self,$field)=@_;
-  $self->getfield($field) =~ /^(\w+)$/
-    or return "Illegal or empty (alphanumeric) $field: ".
-              $self->getfield($field);
-  $self->setfield($field,$1);
-  '';
-}
+=item job
 
-=item ut_alpha COLUMN
+FS::queue object, will be updated with progress
 
-Check/untaint alphanumeric strings (no spaces).  May be null.  If there is an
-error, returns the error, otherwise returns false.
+=item file
 
-=cut
+=item type
+
+csv, xls, fixedlength, xml
+
+=item empty_ok
+
+=back
+
+=cut
+
+use Data::Dumper;
+sub batch_import {
+  my $param = shift;
+
+  warn "$me batch_import call with params: \n". Dumper($param)
+    if $DEBUG;
+
+  my $table   = $param->{table};
+
+  my $job     = $param->{job};
+  my $file    = $param->{file};
+  my $params  = $param->{params} || {};
+
+  my( $type, $header, $sep_char,
+      $fixedlength_format, $xml_format, $asn_format,
+      $row_callback, @fields );
+
+  my $postinsert_callback = '';
+  $postinsert_callback = $param->{'postinsert_callback'}
+	  if $param->{'postinsert_callback'};
+  my $preinsert_callback = '';
+  $preinsert_callback = $param->{'preinsert_callback'}
+	  if $param->{'preinsert_callback'};
+
+  if ( $param->{'format'} ) {
+
+    my $format  = $param->{'format'};
+    my $formats = $param->{formats};
+    die "unknown format $format" unless exists $formats->{ $format };
+
+    $type = $param->{'format_types'}
+            ? $param->{'format_types'}{ $format }
+            : $param->{type} || 'csv';
+
+
+    $header = $param->{'format_headers'}
+               ? $param->{'format_headers'}{ $param->{'format'} }
+               : 0;
+
+    $sep_char = $param->{'format_sep_chars'}
+                  ? $param->{'format_sep_chars'}{ $param->{'format'} }
+                  : ',';
+
+    $fixedlength_format =
+      $param->{'format_fixedlength_formats'}
+        ? $param->{'format_fixedlength_formats'}{ $param->{'format'} }
+        : '';
+
+    $xml_format =
+      $param->{'format_xml_formats'}
+        ? $param->{'format_xml_formats'}{ $param->{'format'} }
+        : '';
+
+    $asn_format =
+      $param->{'format_asn_formats'}
+        ? $param->{'format_asn_formats'}{ $param->{'format'} }
+        : '';
+
+    $row_callback =
+      $param->{'format_row_callbacks'}
+        ? $param->{'format_row_callbacks'}{ $param->{'format'} }
+        : '';
+
+    @fields = @{ $formats->{ $format } };
+
+  } elsif ( $param->{'fields'} ) {
+
+    $type = ''; #infer from filename
+    $header = 0;
+    $sep_char = ',';
+    $fixedlength_format = '';
+    $row_callback = '';
+    @fields = @{ $param->{'fields'} };
+
+  } else {
+    die "neither format nor fields specified";
+  }
+
+  #my $file    = $param->{file};
+
+  unless ( $type ) {
+    if ( $file =~ /\.(\w+)$/i ) {
+      $type = lc($1);
+    } else {
+      #or error out???
+      warn "can't parse file type from filename $file; defaulting to CSV";
+      $type = 'csv';
+    }
+    $type = 'csv'
+      if $param->{'default_csv'} && $type ne 'xls';
+  }
+
+
+  my $row = 0;
+  my $count;
+  my $parser;
+  my @buffer = ();
+  my $asn_header_buffer;
+  if ( $type eq 'csv' || $type eq 'fixedlength' ) {
+
+    if ( $type eq 'csv' ) {
+
+      my %attr = ( 'binary' => 1, );
+      $attr{sep_char} = $sep_char if $sep_char;
+      $parser = new Text::CSV_XS \%attr;
+
+    } elsif ( $type eq 'fixedlength' ) {
+
+      eval "use Parse::FixedLength;";
+      die $@ if $@;
+      $parser = Parse::FixedLength->new($fixedlength_format);
+
+    }
+    else {
+      die "Unknown file type $type\n";
+    }
+
+    @buffer = split(/\r?\n/, slurp($file) );
+    splice(@buffer, 0, ($header || 0) );
+    $count = scalar(@buffer);
+
+  } elsif ( $type eq 'xls' ) {
+
+    eval "use Spreadsheet::ParseExcel;";
+    die $@ if $@;
+
+    eval "use DateTime::Format::Excel;";
+    #for now, just let the error be thrown if it is used, since only CDR
+    # formats bill_west and troop use it, not other excel-parsing things
+    #die $@ if $@;
+
+    my $excel = Spreadsheet::ParseExcel::Workbook->new->Parse($file);
+
+    $parser = $excel->{Worksheet}[0]; #first sheet
+
+    $count = $parser->{MaxRow} || $parser->{MinRow};
+    $count++;
+
+    $row = $header || 0;
+
+  } elsif ( $type eq 'xml' ) {
+
+    # FS::pay_batch
+    eval "use XML::Simple;";
+    die $@ if $@;
+    my $xmlrow = $xml_format->{'xmlrow'};
+    $parser = $xml_format->{'xmlkeys'};
+    die 'no xmlkeys specified' unless ref $parser eq 'ARRAY';
+    my $data = XML::Simple::XMLin(
+      $file,
+      'SuppressEmpty' => '', #sets empty values to ''
+      'KeepRoot'      => 1,
+    );
+    my $rows = $data;
+    $rows = $rows->{$_} foreach @$xmlrow;
+    $rows = [ $rows ] if ref($rows) ne 'ARRAY';
+    $count = @buffer = @$rows;
+
+  } elsif ( $type eq 'asn.1' ) {
+
+    eval "use Convert::ASN1";
+    die $@ if $@;
+
+    my $asn = Convert::ASN1->new;
+    $asn->prepare( $asn_format->{'spec'} ) or die $asn->error;
+
+    $parser = $asn->find( $asn_format->{'macro'} ) or die $asn->error;
+
+    my $data = slurp($file);
+    my $asn_output = $parser->decode( $data )
+      or return "No ". $asn_format->{'macro'}. " found\n";
+
+    $asn_header_buffer = &{ $asn_format->{'header_buffer'} }( $asn_output );
+
+    my $rows = &{ $asn_format->{'arrayref'} }( $asn_output );
+    $count = @buffer = @$rows;
+
+  } else {
+    die "Unknown file type $type\n";
+  }
+
+  #my $columns;
+
+  local $SIG{HUP} = 'IGNORE';
+  local $SIG{INT} = 'IGNORE';
+  local $SIG{QUIT} = 'IGNORE';
+  local $SIG{TERM} = 'IGNORE';
+  local $SIG{TSTP} = 'IGNORE';
+  local $SIG{PIPE} = 'IGNORE';
+
+  my $oldAutoCommit = $FS::UID::AutoCommit;
+  local $FS::UID::AutoCommit = 0;
+  my $dbh = dbh;
+
+  #my $params  = $param->{params} || {};
+  if ( $param->{'batch_namecol'} && $param->{'batch_namevalue'} ) {
+    my $batch_col   = $param->{'batch_keycol'};
+
+    my $batch_class = 'FS::'. $param->{'batch_table'};
+    my $batch = $batch_class->new({
+      $param->{'batch_namecol'} => $param->{'batch_namevalue'}
+    });
+    my $error = $batch->insert;
+    if ( $error ) {
+      $dbh->rollback if $oldAutoCommit;
+      return "can't insert batch record: $error";
+    }
+    #primary key via dbdef? (so the column names don't have to match)
+    my $batch_value = $batch->get( $param->{'batch_keycol'} );
+
+    $params->{ $batch_col } = $batch_value;
+  }
+
+  #my $job     = $param->{job};
+  my $line;
+  my $imported = 0;
+  my( $last, $min_sec ) = ( time, 5 ); #progressbar foo
+  while (1) {
+
+    my @columns = ();
+    my %hash = %$params;
+    if ( $type eq 'csv' ) {
+
+      last unless scalar(@buffer);
+      $line = shift(@buffer);
+
+      next if $line =~ /^\s*$/; #skip empty lines
+
+      $line = &{$row_callback}($line) if $row_callback;
+      
+      next if $line =~ /^\s*$/; #skip empty lines
+
+      $parser->parse($line) or do {
+        $dbh->rollback if $oldAutoCommit;
+        return "can't parse: ". $parser->error_input() . " " . $parser->error_diag;
+      };
+      @columns = $parser->fields();
+
+    } elsif ( $type eq 'fixedlength' ) {
+
+      last unless scalar(@buffer);
+      $line = shift(@buffer);
+
+      @columns = $parser->parse($line);
+
+    } elsif ( $type eq 'xls' ) {
+
+      last if $row > ($parser->{MaxRow} || $parser->{MinRow})
+           || ! $parser->{Cells}[$row];
+
+      my @row = @{ $parser->{Cells}[$row] };
+      @columns = map $_->{Val}, @row;
+
+      #my $z = 'A';
+      #warn $z++. ": $_\n" for @columns;
+
+    } elsif ( $type eq 'xml' ) {
+
+      # $parser = [ 'Column0Key', 'Column1Key' ... ]
+      last unless scalar(@buffer);
+      my $row = shift @buffer;
+      @columns = @{ $row }{ @$parser };
+
+    } elsif ( $type eq 'asn.1' ) {
+
+      last unless scalar(@buffer);
+      my $row = shift @buffer;
+      &{ $asn_format->{row_callback} }( $row, $asn_header_buffer )
+        if $asn_format->{row_callback};
+      foreach my $key ( keys %{ $asn_format->{map} } ) {
+        $hash{$key} = &{ $asn_format->{map}{$key} }( $row, $asn_header_buffer );
+      }
+
+    } else {
+      die "Unknown file type $type\n";
+    }
+
+    my @later = ();
+
+    foreach my $field ( @fields ) {
+
+      my $value = shift @columns;
+     
+      if ( ref($field) eq 'CODE' ) {
+        #&{$field}(\%hash, $value);
+        push @later, $field, $value;
+      } else {
+        #??? $hash{$field} = $value if length($value);
+        $hash{$field} = $value if defined($value) && length($value);
+      }
+
+    }
+
+    #my $table   = $param->{table};
+    my $class = "FS::$table";
+
+    my $record = $class->new( \%hash );
+
+    my $param = {};
+    while ( scalar(@later) ) {
+      my $sub = shift @later;
+      my $data = shift @later;
+      eval {
+        &{$sub}($record, $data, $conf, $param); # $record->&{$sub}($data, $conf)
+      };
+      if ( $@ ) {
+        $dbh->rollback if $oldAutoCommit;
+        return "can't insert record". ( $line ? " for $line" : '' ). ": $@";
+      }
+      last if exists( $param->{skiprow} );
+    }
+    next if exists( $param->{skiprow} );
+
+    if ( $preinsert_callback ) {
+      my $error = &{$preinsert_callback}($record, $param);
+      if ( $error ) {
+        $dbh->rollback if $oldAutoCommit;
+        return "preinsert_callback error". ( $line ? " for $line" : '' ).
+               ": $error";
+      }
+      next if exists $param->{skiprow} && $param->{skiprow};
+    }
+
+    my $error = $record->insert;
+
+    if ( $error ) {
+      $dbh->rollback if $oldAutoCommit;
+      return "can't insert record". ( $line ? " for $line" : '' ). ": $error";
+    }
+
+    $row++;
+    $imported++;
+
+    if ( $postinsert_callback ) {
+      my $error = &{$postinsert_callback}($record, $param);
+      if ( $error ) {
+        $dbh->rollback if $oldAutoCommit;
+        return "postinsert_callback error". ( $line ? " for $line" : '' ).
+               ": $error";
+      }
+    }
+
+    if ( $job && time - $min_sec > $last ) { #progress bar
+      $job->update_statustext( int(100 * $imported / $count) );
+      $last = time;
+    }
+
+  }
+
+  unless ( $imported || $param->{empty_ok} ) {
+    $dbh->rollback if $oldAutoCommit;
+    return "Empty file!";
+  }
+
+  $dbh->commit or die $dbh->errstr if $oldAutoCommit;
+
+  ''; #no error
+
+}
+
+sub _h_statement {
+  my( $self, $action, $time ) = @_;
+
+  $time ||= time;
+
+  my %nohistory = map { $_=>1 } $self->nohistory_fields;
+
+  my @fields =
+    grep { defined($self->get($_)) && $self->get($_) ne "" && ! $nohistory{$_} }
+    real_fields($self->table);
+  ;
+
+  # If we're encrypting then don't store the payinfo in the history
+  if ( $conf && $conf->exists('encryption') && $self->table ne 'banned_pay' ) {
+    @fields = grep { $_ ne 'payinfo' } @fields;
+  }
+
+  my @values = map { _quote( $self->getfield($_), $self->table, $_) } @fields;
+
+  "INSERT INTO h_". $self->table. " ( ".
+      join(', ', qw(history_date history_usernum history_action), @fields ).
+    ") VALUES (".
+      join(', ', $time,
+                 $FS::CurrentUser::CurrentUser->usernum,
+                 dbh->quote($action),
+                 @values
+      ).
+    ")"
+  ;
+}
+
+=item unique COLUMN
+
+B<Warning>: External use is B<deprecated>.  
+
+Replaces COLUMN in record with a unique number, using counters in the
+filesystem.  Used by the B<insert> method on single-field unique columns
+(see L<DBIx::DBSchema::Table>) and also as a fallback for primary keys
+that aren't SERIAL (Pg) or AUTO_INCREMENT (mysql).
+
+Returns the new value.
+
+=cut
+
+sub unique {
+  my($self,$field) = @_;
+  my($table)=$self->table;
+
+  croak "Unique called on field $field, but it is ",
+        $self->getfield($field),
+        ", not null!"
+    if $self->getfield($field);
+
+  #warn "table $table is tainted" if is_tainted($table);
+  #warn "field $field is tainted" if is_tainted($field);
+
+  my($counter) = new File::CounterFile "$table.$field",0;
+
+  my $index = $counter->inc;
+  $index = $counter->inc while qsearchs($table, { $field=>$index } );
+
+  $index =~ /^(\d*)$/;
+  $index=$1;
+
+  $self->setfield($field,$index);
+
+}
+
+=item ut_float COLUMN
+
+Check/untaint floating point numeric data: 1.1, 1, 1.1e10, 1e10.  May not be
+null.  If there is an error, returns the error, otherwise returns false.
+
+=cut
+
+sub ut_float {
+  my($self,$field)=@_ ;
+  ($self->getfield($field) =~ /^\s*(\d+\.\d+)\s*$/ ||
+   $self->getfield($field) =~ /^\s*(\d+)\s*$/ ||
+   $self->getfield($field) =~ /^\s*(\d+\.\d+e\d+)\s*$/ ||
+   $self->getfield($field) =~ /^\s*(\d+e\d+)\s*$/)
+    or return "Illegal or empty (float) $field: ". $self->getfield($field);
+  $self->setfield($field,$1);
+  '';
+}
+=item ut_floatn COLUMN
+
+Check/untaint floating point numeric data: 1.1, 1, 1.1e10, 1e10.  May be
+null.  If there is an error, returns the error, otherwise returns false.
+
+=cut
+
+#false laziness w/ut_ipn
+sub ut_floatn {
+  my( $self, $field ) = @_;
+  if ( $self->getfield($field) =~ /^()$/ ) {
+    $self->setfield($field,'');
+    '';
+  } else {
+    $self->ut_float($field);
+  }
+}
+
+=item ut_sfloat COLUMN
+
+Check/untaint signed floating point numeric data: 1.1, 1, 1.1e10, 1e10.
+May not be null.  If there is an error, returns the error, otherwise returns
+false.
+
+=cut
+
+sub ut_sfloat {
+  my($self,$field)=@_ ;
+  ($self->getfield($field) =~ /^\s*(-?\d+\.\d+)\s*$/ ||
+   $self->getfield($field) =~ /^\s*(-?\d+)\s*$/ ||
+   $self->getfield($field) =~ /^\s*(-?\d+\.\d+[eE]-?\d+)\s*$/ ||
+   $self->getfield($field) =~ /^\s*(-?\d+[eE]-?\d+)\s*$/)
+    or return "Illegal or empty (float) $field: ". $self->getfield($field);
+  $self->setfield($field,$1);
+  '';
+}
+=item ut_sfloatn COLUMN
+
+Check/untaint signed floating point numeric data: 1.1, 1, 1.1e10, 1e10.  May be
+null.  If there is an error, returns the error, otherwise returns false.
+
+=cut
+
+sub ut_sfloatn {
+  my( $self, $field ) = @_;
+  if ( $self->getfield($field) =~ /^()$/ ) {
+    $self->setfield($field,'');
+    '';
+  } else {
+    $self->ut_sfloat($field);
+  }
+}
+
+=item ut_snumber COLUMN
+
+Check/untaint signed numeric data (whole numbers).  If there is an error,
+returns the error, otherwise returns false.
+
+=cut
+
+sub ut_snumber {
+  my($self, $field) = @_;
+  $self->getfield($field) =~ /^\s*(-?)\s*(\d+)\s*$/
+    or return "Illegal or empty (numeric) $field: ". $self->getfield($field);
+  $self->setfield($field, "$1$2");
+  '';
+}
+
+=item ut_snumbern COLUMN
+
+Check/untaint signed numeric data (whole numbers).  If there is an error,
+returns the error, otherwise returns false.
+
+=cut
+
+sub ut_snumbern {
+  my($self, $field) = @_;
+  $self->getfield($field) =~ /^\s*(-?)\s*(\d*)\s*$/
+    or return "Illegal (numeric) $field: ". $self->getfield($field);
+  if ($1) {
+    return "Illegal (numeric) $field: ". $self->getfield($field)
+      unless $2;
+  }
+  $self->setfield($field, "$1$2");
+  '';
+}
+
+=item ut_number COLUMN
+
+Check/untaint simple numeric data (whole numbers).  May not be null.  If there
+is an error, returns the error, otherwise returns false.
+
+=cut
+
+sub ut_number {
+  my($self,$field)=@_;
+  $self->getfield($field) =~ /^\s*(\d+)\s*$/
+    or return "Illegal or empty (numeric) $field: ". $self->getfield($field);
+  $self->setfield($field,$1);
+  '';
+}
+
+=item ut_numbern COLUMN
+
+Check/untaint simple numeric data (whole numbers).  May be null.  If there is
+an error, returns the error, otherwise returns false.
+
+=cut
+
+sub ut_numbern {
+  my($self,$field)=@_;
+  $self->getfield($field) =~ /^\s*(\d*)\s*$/
+    or return "Illegal (numeric) $field: ". $self->getfield($field);
+  $self->setfield($field,$1);
+  '';
+}
+
+=item ut_money COLUMN
+
+Check/untaint monetary numbers.  May be negative.  Set to 0 if null.  If there
+is an error, returns the error, otherwise returns false.
+
+=cut
+
+sub ut_money {
+  my($self,$field)=@_;
+
+  if ( $self->getfield($field) eq '' ) {
+    $self->setfield($field, 0);
+  } elsif ( $self->getfield($field) =~ /^\s*(\-)?\s*(\d*)(\.\d{1})\s*$/ ) {
+    #handle one decimal place without barfing out
+    $self->setfield($field, ( ($1||''). ($2||''). ($3.'0') ) || 0);
+  } elsif ( $self->getfield($field) =~ /^\s*(\-)?\s*(\d*)(\.\d{2})?\s*$/ ) {
+    $self->setfield($field, ( ($1||''). ($2||''). ($3||'') ) || 0);
+  } else {
+    return "Illegal (money) $field: ". $self->getfield($field);
+  }
+
+  '';
+}
+
+=item ut_moneyn COLUMN
+
+Check/untaint monetary numbers.  May be negative.  If there
+is an error, returns the error, otherwise returns false.
+
+=cut
+
+sub ut_moneyn {
+  my($self,$field)=@_;
+  if ($self->getfield($field) eq '') {
+    $self->setfield($field, '');
+    return '';
+  }
+  $self->ut_money($field);
+}
+
+=item ut_currencyn COLUMN
+
+Check/untaint currency indicators, such as USD or EUR.  May be null.  If there
+is an error, returns the error, otherwise returns false.
+
+=cut
+
+sub ut_currencyn {
+  my($self, $field) = @_;
+  if ($self->getfield($field) eq '') { #can be null
+    $self->setfield($field, '');
+    return '';
+  }
+  $self->ut_currency($field);
+}
+
+=item ut_currency COLUMN
+
+Check/untaint currency indicators, such as USD or EUR.  May not be null.  If
+there is an error, returns the error, otherwise returns false.
+
+=cut
+
+sub ut_currency {
+  my($self, $field) = @_;
+  my $value = uc( $self->getfield($field) );
+  if ( code2currency($value) ) {
+    $self->setfield($value);
+  } else {
+    return "Unknown currency $value";
+  }
+
+  '';
+}
+
+=item ut_text COLUMN
+
+Check/untaint text.  Alphanumerics, spaces, and the following punctuation
+symbols are currently permitted: ! @ # $ % & ( ) - + ; : ' " , . ? / = [ ] < >
+May not be null.  If there is an error, returns the error, otherwise returns
+false.
+
+=cut
+
+sub ut_text {
+  my($self,$field)=@_;
+  #warn "msgcat ". \&msgcat. "\n";
+  #warn "notexist ". \&notexist. "\n";
+  #warn "AUTOLOAD ". \&AUTOLOAD. "\n";
+  $self->getfield($field)
+    =~ /^([\wô \!\@\#\$\%\&\(\)\-\+\;\:\'\"\,\.\?\/\=\[\]\<\>$money_char]+)$/
+      or return gettext('illegal_or_empty_text'). " $field: ".
+                 $self->getfield($field);
+  $self->setfield($field,$1);
+  '';
+}
+
+=item ut_textn COLUMN
+
+Check/untaint text.  Alphanumerics, spaces, and the following punctuation
+symbols are currently permitted: ! @ # $ % & ( ) - + ; : ' " , . ? / = [ ] < >
+May be null.  If there is an error, returns the error, otherwise returns false.
+
+=cut
+
+sub ut_textn {
+  my($self,$field)=@_;
+  return $self->setfield($field, '') if $self->getfield($field) =~ /^$/;
+  $self->ut_text($field);
+}
+
+=item ut_alpha COLUMN
+
+Check/untaint alphanumeric strings (no spaces).  May not be null.  If there is
+an error, returns the error, otherwise returns false.
+
+=cut
+
+sub ut_alpha {
+  my($self,$field)=@_;
+  $self->getfield($field) =~ /^(\w+)$/
+    or return "Illegal or empty (alphanumeric) $field: ".
+              $self->getfield($field);
+  $self->setfield($field,$1);
+  '';
+}
+
+=item ut_alphan COLUMN
+
+Check/untaint alphanumeric strings (no spaces).  May be null.  If there is an
+error, returns the error, otherwise returns false.
+
+=cut
 
 sub ut_alphan {
   my($self,$field)=@_;
@@ -1306,6 +2437,36 @@ sub ut_alphan {
   '';
 }
 
+=item ut_alphasn COLUMN
+
+Check/untaint alphanumeric strings, spaces allowed.  May be null.  If there is
+an error, returns the error, otherwise returns false.
+
+=cut
+
+sub ut_alphasn {
+  my($self,$field)=@_;
+  $self->getfield($field) =~ /^([\w ]*)$/ 
+    or return "Illegal (alphanumeric) $field: ". $self->getfield($field);
+  $self->setfield($field,$1);
+  '';
+}
+
+
+=item ut_alpha_lower COLUMN
+
+Check/untaint lowercase alphanumeric strings (no spaces).  May not be null.  If
+there is an error, returns the error, otherwise returns false.
+
+=cut
+
+sub ut_alpha_lower {
+  my($self,$field)=@_;
+  $self->getfield($field) =~ /[[:upper:]]/
+    and return "Uppercase characters are not permitted in $field";
+  $self->ut_alpha($field);
+}
+
 =item ut_phonen COLUMN [ COUNTRY ]
 
 Check/untaint phone numbers.  May be null.  If there is an error, returns
@@ -1324,6 +2485,8 @@ sub ut_phonen {
     $self->setfield($field,'');
   } elsif ( $country eq 'US' || $country eq 'CA' ) {
     $phonen =~ s/\D//g;
+    $phonen = $conf->config('cust_main-default_areacode').$phonen
+      if length($phonen)==7 && $conf->config('cust_main-default_areacode');
     $phonen =~ /^(\d{3})(\d{3})(\d{4})(\d*)$/
       or return gettext('illegal_phone'). " $field: ". $self->getfield($field);
     $phonen = "$1-$2-$3";
@@ -1336,14 +2499,79 @@ sub ut_phonen {
   '';
 }
 
+=item ut_hex COLUMN
+
+Check/untaint hexadecimal values.
+
+=cut
+
+sub ut_hex {
+  my($self, $field) = @_;
+  $self->getfield($field) =~ /^([\da-fA-F]+)$/
+    or return "Illegal (hex) $field: ". $self->getfield($field);
+  $self->setfield($field, uc($1));
+  '';
+}
+
+=item ut_hexn COLUMN
+
+Check/untaint hexadecimal values.  May be null.
+
+=cut
+
+sub ut_hexn {
+  my($self, $field) = @_;
+  $self->getfield($field) =~ /^([\da-fA-F]*)$/
+    or return "Illegal (hex) $field: ". $self->getfield($field);
+  $self->setfield($field, uc($1));
+  '';
+}
+
+=item ut_mac_addr COLUMN
+
+Check/untaint mac addresses.  May be null.
+
+=cut
+
+sub ut_mac_addr {
+  my($self, $field) = @_;
+
+  my $mac = $self->get($field);
+  $mac =~ s/\s+//g;
+  $mac =~ s/://g;
+  $self->set($field, $mac);
+
+  my $e = $self->ut_hex($field);
+  return $e if $e;
+
+  return "Illegal (mac address) $field: ". $self->getfield($field)
+    unless length($self->getfield($field)) == 12;
+
+  '';
+
+}
+
+=item ut_mac_addrn COLUMN
+
+Check/untaint mac addresses.  May be null.
+
+=cut
+
+sub ut_mac_addrn {
+  my($self, $field) = @_;
+  ($self->getfield($field) eq '') ? '' : $self->ut_mac_addr($field);
+}
+
 =item ut_ip COLUMN
 
-Check/untaint ip addresses.  IPv4 only for now.
+Check/untaint ip addresses.  IPv4 only for now, though ::1 is auto-translated
+to 127.0.0.1.
 
 =cut
 
 sub ut_ip {
   my( $self, $field ) = @_;
+  $self->setfield($field, '127.0.0.1') if $self->getfield($field) eq '::1';
   $self->getfield($field) =~ /^(\d+)\.(\d+)\.(\d+)\.(\d+)$/
     or return "Illegal (IP address) $field: ". $self->getfield($field);
   for ( $1, $2, $3, $4 ) { return "Illegal (IP address) $field" if $_ > 255; }
@@ -1353,7 +2581,8 @@ sub ut_ip {
 
 =item ut_ipn COLUMN
 
-Check/untaint ip addresses.  IPv4 only for now.  May be null.
+Check/untaint ip addresses.  IPv4 only for now, though ::1 is auto-translated
+to 127.0.0.1.  May be null.
 
 =cut
 
@@ -1367,9 +2596,129 @@ sub ut_ipn {
   }
 }
 
+=item ut_ip46 COLUMN
+
+Check/untaint IPv4 or IPv6 address.
+
+=cut
+
+sub ut_ip46 {
+  my( $self, $field ) = @_;
+  my $ip = NetAddr::IP->new($self->getfield($field))
+    or return "Illegal (IP address) $field: ".$self->getfield($field);
+  $self->setfield($field, lc($ip->addr));
+  return '';
+}
+
+=item ut_ip46n
+
+Check/untaint IPv6 or IPv6 address.  May be null.
+
+=cut
+
+sub ut_ip46n {
+  my( $self, $field ) = @_;
+  if ( $self->getfield($field) =~ /^$/ ) {
+    $self->setfield($field, '');
+    return '';
+  }
+  $self->ut_ip46($field);
+}
+
+=item ut_coord COLUMN [ LOWER [ UPPER ] ]
+
+Check/untaint coordinates.
+Accepts the following forms:
+DDD.DDDDD
+-DDD.DDDDD
+DDD MM.MMM
+-DDD MM.MMM
+DDD MM SS
+-DDD MM SS
+DDD MM MMM
+-DDD MM MMM
+
+The "DDD MM SS" and "DDD MM MMM" are potentially ambiguous.
+The latter form (that is, the MMM are thousands of minutes) is
+assumed if the "MMM" is exactly three digits or two digits > 59.
+
+To be safe, just use the DDD.DDDDD form.
+
+If LOWER or UPPER are specified, then the coordinate is checked
+for lower and upper bounds, respectively.
+
+=cut
+
+sub ut_coord {
+  my ($self, $field) = (shift, shift);
+
+  my($lower, $upper);
+  if ( $field =~ /latitude/ ) {
+    $lower = $lat_lower;
+    $upper = 90;
+  } elsif ( $field =~ /longitude/ ) {
+    $lower = -180;
+    $upper = $lon_upper;
+  }
+
+  my $coord = $self->getfield($field);
+  my $neg = $coord =~ s/^(-)//;
+
+  my ($d, $m, $s) = (0, 0, 0);
+
+  if (
+    (($d) = ($coord =~ /^(\s*\d{1,3}(?:\.\d+)?)\s*$/)) ||
+    (($d, $m) = ($coord =~ /^(\s*\d{1,3})\s+(\d{1,2}(?:\.\d+))\s*$/)) ||
+    (($d, $m, $s) = ($coord =~ /^(\s*\d{1,3})\s+(\d{1,2})\s+(\d{1,3})\s*$/))
+  ) {
+    $s = (((($s =~ /^\d{3}$/) or $s > 59) ? ($s / 1000) : ($s / 60)) / 60);
+    $m = $m / 60;
+    if ($m > 59) {
+      return "Invalid (coordinate with minutes > 59) $field: "
+             . $self->getfield($field);
+    }
+
+    $coord = ($neg ? -1 : 1) * sprintf('%.8f', $d + $m + $s);
+
+    if (defined($lower) and ($coord < $lower)) {
+      return "Invalid (coordinate < $lower) $field: "
+             . $self->getfield($field);;
+    }
+
+    if (defined($upper) and ($coord > $upper)) {
+      return "Invalid (coordinate > $upper) $field: "
+             . $self->getfield($field);;
+    }
+
+    $self->setfield($field, $coord);
+    return '';
+  }
+
+  return "Invalid (coordinate) $field: " . $self->getfield($field);
+
+}
+
+=item ut_coordn COLUMN [ LOWER [ UPPER ] ]
+
+Same as ut_coord, except optionally null.
+
+=cut
+
+sub ut_coordn {
+
+  my ($self, $field) = (shift, shift);
+
+  if ($self->getfield($field) =~ /^\s*$/) {
+    return '';
+  } else {
+    return $self->ut_coord($field, @_);
+  }
+
+}
+
 =item ut_domain COLUMN
 
-Check/untaint host and domain names.
+Check/untaint host and domain names.  May not be null.
 
 =cut
 
@@ -1377,11 +2726,27 @@ sub ut_domain {
   my( $self, $field ) = @_;
   #$self->getfield($field) =~/^(\w+\.)*\w+$/
   $self->getfield($field) =~/^(([\w\-]+\.)*\w+)$/
-    or return "Illegal (domain) $field: ". $self->getfield($field);
+    or return "Illegal (hostname) $field: ". $self->getfield($field);
   $self->setfield($field,$1);
   '';
 }
 
+=item ut_domainn COLUMN
+
+Check/untaint host and domain names.  May be null.
+
+=cut
+
+sub ut_domainn {
+  my( $self, $field ) = @_;
+  if ( $self->getfield($field) =~ /^()$/ ) {
+    $self->setfield($field,'');
+    '';
+  } else {
+    $self->ut_domain($field);
+  }
+}
+
 =item ut_name COLUMN
 
 Check/untaint proper names; allows alphanumerics, spaces and the following
@@ -1393,34 +2758,72 @@ May not be null.
 
 sub ut_name {
   my( $self, $field ) = @_;
+#  warn "ut_name allowed alphanumerics: +(sort grep /\w/, map { chr() } 0..255), "\n";
   $self->getfield($field) =~ /^([\w \,\.\-\']+)$/
     or return gettext('illegal_name'). " $field: ". $self->getfield($field);
-  $self->setfield($field,$1);
+  my $name = $1;
+  $name =~ s/^\s+//; 
+  $name =~ s/\s+$//; 
+  $name =~ s/\s+/ /g;
+  $self->setfield($field, $name);
   '';
 }
 
+=item ut_namen COLUMN
+
+Check/untaint proper names; allows alphanumerics, spaces and the following
+punctuation: , . - '
+
+May not be null.
+
+=cut
+
+sub ut_namen {
+  my( $self, $field ) = @_;
+  return $self->setfield($field, '') if $self->getfield($field) =~ /^$/;
+  $self->ut_name($field);
+}
+
 =item ut_zip COLUMN
 
 Check/untaint zip codes.
 
 =cut
 
+my @zip_reqd_countries = qw( AU CA US ); #CA, US implicit...
+
 sub ut_zip {
   my( $self, $field, $country ) = @_;
+
   if ( $country eq 'US' ) {
-    $self->getfield($field) =~ /\s*(\d{5}(\-\d{4})?)\s*$/
+
+    $self->getfield($field) =~ /^\s*(\d{5}(\-\d{4})?)\s*$/
+      or return gettext('illegal_zip'). " $field for country $country: ".
+                $self->getfield($field);
+    $self->setfield($field, $1);
+
+  } elsif ( $country eq 'CA' ) {
+
+    $self->getfield($field) =~ /^\s*([A-Z]\d[A-Z])\s*(\d[A-Z]\d)\s*$/i
       or return gettext('illegal_zip'). " $field for country $country: ".
                 $self->getfield($field);
-    $self->setfield($field,$1);
+    $self->setfield($field, "$1 $2");
+
   } else {
-    if ( $self->getfield($field) =~ /^\s*$/ ) {
+
+    if ( $self->getfield($field) =~ /^\s*$/
+         && ( !$country || ! grep { $_ eq $country } @zip_reqd_countries )
+       )
+    {
       $self->setfield($field,'');
     } else {
-      $self->getfield($field) =~ /^\s*(\w[\w\-\s]{2,8}\w)\s*$/
+      $self->getfield($field) =~ /^\s*(\w[\w\-\s]{0,8}\w)\s*$/
         or return gettext('illegal_zip'). " $field: ". $self->getfield($field);
       $self->setfield($field,$1);
     }
+
   }
+
   '';
 }
 
@@ -1469,110 +2872,297 @@ sub ut_enum {
   my( $self, $field, $choices ) = @_;
   foreach my $choice ( @$choices ) {
     if ( $self->getfield($field) eq $choice ) {
-      $self->setfield($choice);
+      $self->setfield($field, $choice);
       return '';
     }
   }
-  return "Illegal (enum) field $field: ". $self->getfield($field);
+  return "Illegal (enum) field $field: ". $self->getfield($field);
+}
+
+=item ut_enumn COLUMN CHOICES_ARRAYREF
+
+Like ut_enum, except the null value is also allowed.
+
+=cut
+
+sub ut_enumn {
+  my( $self, $field, $choices ) = @_;
+  $self->getfield($field)
+    ? $self->ut_enum($field, $choices)
+    : '';
+}
+
+=item ut_flag COLUMN
+
+Check/untaint a column if it contains either an empty string or 'Y'.  This
+is the standard form for boolean flags in Freeside.
+
+=cut
+
+sub ut_flag {
+  my( $self, $field ) = @_;
+  my $value = uc($self->getfield($field));
+  if ( $value eq '' or $value eq 'Y' ) {
+    $self->setfield($field, $value);
+    return '';
+  }
+  return "Illegal (flag) field $field: $value";
+}
+
+=item ut_foreign_key COLUMN FOREIGN_TABLE FOREIGN_COLUMN
+
+Check/untaint a foreign column key.  Call a regular ut_ method (like ut_number)
+on the column first.
+
+=cut
+
+sub ut_foreign_key {
+  my( $self, $field, $table, $foreign ) = @_;
+  return '' if $no_check_foreign;
+  qsearchs($table, { $foreign => $self->getfield($field) })
+    or return "Can't find ". $self->table. ".$field ". $self->getfield($field).
+              " in $table.$foreign";
+  '';
+}
+
+=item ut_foreign_keyn COLUMN FOREIGN_TABLE FOREIGN_COLUMN
+
+Like ut_foreign_key, except the null value is also allowed.
+
+=cut
+
+sub ut_foreign_keyn {
+  my( $self, $field, $table, $foreign ) = @_;
+  $self->getfield($field)
+    ? $self->ut_foreign_key($field, $table, $foreign)
+    : '';
+}
+
+=item ut_agentnum_acl COLUMN [ NULL_RIGHT | NULL_RIGHT_LISTREF ]
+
+Checks this column as an agentnum, taking into account the current users's
+ACLs.  NULL_RIGHT or NULL_RIGHT_LISTREF, if specified, indicates the access
+right or rights allowing no agentnum.
+
+=cut
+
+sub ut_agentnum_acl {
+  my( $self, $field ) = (shift, shift);
+  my $null_acl = scalar(@_) ? shift : [];
+  $null_acl = [ $null_acl ] unless ref($null_acl);
+
+  my $error = $self->ut_foreign_keyn($field, 'agent', 'agentnum');
+  return "Illegal agentnum: $error" if $error;
+
+  my $curuser = $FS::CurrentUser::CurrentUser;
+
+  if ( $self->$field() ) {
+
+    return "Access denied"
+      unless $curuser->agentnum($self->$field());
+
+  } else {
+
+    return "Access denied"
+      unless grep $curuser->access_right($_), @$null_acl;
+
+  }
+
+  '';
+
+}
+
+=item fields [ TABLE ]
+
+This is a wrapper for real_fields.  Code that called
+fields before should probably continue to call fields.
+
+=cut
+
+sub fields {
+  my $something = shift;
+  my $table;
+  if($something->isa('FS::Record')) {
+    $table = $something->table;
+  } else {
+    $table = $something;
+    $something = "FS::$table";
+  }
+  return (real_fields($table));
+}
+
+
+=item encrypt($value)
+
+Encrypts the credit card using a combination of PK to encrypt and uuencode to armour.
+
+Returns the encrypted string.
+
+You should generally not have to worry about calling this, as the system handles this for you.
+
+=cut
+
+sub encrypt {
+  my ($self, $value) = @_;
+  my $encrypted = $value;
+
+  if ($conf->exists('encryption')) {
+    if ($self->is_encrypted($value)) {
+      # Return the original value if it isn't plaintext.
+      $encrypted = $value;
+    } else {
+      $self->loadRSA;
+      if (ref($rsa_encrypt) =~ /::RSA/) { # We Can Encrypt
+        # RSA doesn't like the empty string so let's pack it up
+        # The database doesn't like the RSA data so uuencode it
+        my $length = length($value)+1;
+        $encrypted = pack("u*",$rsa_encrypt->encrypt(pack("Z$length",$value)));
+      } else {
+        die ("You can't encrypt w/o a valid RSA engine - Check your installation or disable encryption");
+      }
+    }
+  }
+  return $encrypted;
 }
 
-=item ut_foreign_key COLUMN FOREIGN_TABLE FOREIGN_COLUMN
+=item is_encrypted($value)
 
-Check/untaint a foreign column key.  Call a regular ut_ method (like ut_number)
-on the column first.
+Checks to see if the string is encrypted and returns true or false (1/0) to indicate it's status.
 
 =cut
 
-sub ut_foreign_key {
-  my( $self, $field, $table, $foreign ) = @_;
-  qsearchs($table, { $foreign => $self->getfield($field) })
-    or return "Can't find ". $self->table. ".$field ". $self->getfield($field).
-              " in $table.$foreign";
-  '';
+
+sub is_encrypted {
+  my ($self, $value) = @_;
+  # could be more precise about it, but this will do for now
+  $value =~ /^M/ && length($value) > 80;
 }
 
-=item ut_foreign_keyn COLUMN FOREIGN_TABLE FOREIGN_COLUMN
+=item decrypt($value)
 
-Like ut_foreign_key, except the null value is also allowed.
+Uses the private key to decrypt the string. Returns the decryoted string or undef on failure.
+
+You should generally not have to worry about calling this, as the system handles this for you.
 
 =cut
 
-sub ut_foreign_keyn {
-  my( $self, $field, $table, $foreign ) = @_;
-  $self->getfield($field)
-    ? $self->ut_foreign_key($field, $table, $foreign)
-    : '';
+sub decrypt {
+  my ($self,$value) = @_;
+  my $decrypted = $value; # Will return the original value if it isn't encrypted or can't be decrypted.
+  if ($conf->exists('encryption') && $self->is_encrypted($value)) {
+    $self->loadRSA;
+    if (ref($rsa_decrypt) =~ /::RSA/) {
+      my $encrypted = unpack ("u*", $value);
+      $decrypted =  unpack("Z*", eval{$rsa_decrypt->decrypt($encrypted)});
+      if ($@) {warn "Decryption Failed"};
+    }
+  }
+  return $decrypted;
 }
 
+sub loadRSA {
+    my $self = shift;
+    #Initialize the Module
+    $rsa_module = 'Crypt::OpenSSL::RSA'; # The Default
 
-=item virtual_fields [ TABLE ]
+    if ($conf->exists('encryptionmodule') && $conf->config('encryptionmodule') ne '') {
+      $rsa_module = $conf->config('encryptionmodule');
+    }
 
-Returns a list of virtual fields defined for the table.  This should not 
-be exported, and should only be called as an instance or class method.
+    if (!$rsa_loaded) {
+	eval ("require $rsa_module"); # No need to import the namespace
+	$rsa_loaded++;
+    }
+    # Initialize Encryption
+    if ($conf->exists('encryptionpublickey') && $conf->config('encryptionpublickey') ne '') {
+      my $public_key = join("\n",$conf->config('encryptionpublickey'));
+      $rsa_encrypt = $rsa_module->new_public_key($public_key);
+    }
+    
+    # Intitalize Decryption
+    if ($conf->exists('encryptionprivatekey') && $conf->config('encryptionprivatekey') ne '') {
+      my $private_key = join("\n",$conf->config('encryptionprivatekey'));
+      $rsa_decrypt = $rsa_module->new_private_key($private_key);
+    }
+}
 
-=cut
+=item h_search ACTION
 
-sub virtual_fields {
-  my $self = shift;
-  my $table;
-  $table = $self->table or confess "virtual_fields called on non-table";
+Given an ACTION, either "insert", or "delete", returns the appropriate history
+record corresponding to this record, if any.
 
-  confess "Unknown table $table" unless $dbdef->table($table);
+=cut
 
-  return () unless $self->dbdef->table('part_virtual_field');
+sub h_search {
+  my( $self, $action ) = @_;
 
-  unless ( $virtual_fields_cache{$table} ) {
-    my $query = 'SELECT name from part_virtual_field ' .
-                "WHERE dbtable = '$table'";
-    my $dbh = dbh;
-    my $result = $dbh->selectcol_arrayref($query);
-    confess $dbh->errstr if $dbh->err;
-    $virtual_fields_cache{$table} = $result;
-  }
+  my $table = $self->table;
+  $table =~ s/^h_//;
 
-  @{$virtual_fields_cache{$table}};
+  my $primary_key = dbdef->table($table)->primary_key;
 
-}
+  qsearchs({
+    'table'   => "h_$table",
+    'hashref' => { $primary_key     => $self->$primary_key(),
+                   'history_action' => $action,
+                 },
+  });
 
+}
 
-=item fields [ TABLE ]
+=item h_date ACTION
 
-This is a wrapper for real_fields and virtual_fields.  Code that called
-fields before should probably continue to call fields.
+Given an ACTION, either "insert", or "delete", returns the timestamp of the
+appropriate history record corresponding to this record, if any.
 
 =cut
 
-sub fields {
-  my $something = shift;
-  my $table;
-  if($something->isa('FS::Record')) {
-    $table = $something->table;
-  } else {
-    $table = $something;
-    $something = "FS::$table";
-  }
-  return (real_fields($table), $something->virtual_fields());
+sub h_date {
+  my($self, $action) = @_;
+  my $h = $self->h_search($action);
+  $h ? $h->history_date : '';
 }
 
-=back
+=item scalar_sql SQL [ PLACEHOLDER, ... ]
 
-=item pvf FIELD_NAME
+A class or object method.  Executes the sql statement represented by SQL and
+returns a scalar representing the result: the first column of the first row.
 
-Returns the FS::part_virtual_field object corresponding to a field in the 
-record (specified by FIELD_NAME).
+Dies on bogus SQL.  Returns an empty string if no row is returned.
+
+Typically used for statments which return a single value such as "SELECT
+COUNT(*) FROM table WHERE something" OR "SELECT column FROM table WHERE key = ?"
 
 =cut
 
-sub pvf {
-  my ($self, $name) = (shift, shift);
+sub scalar_sql {
+  my($self, $sql) = (shift, shift);
+  my $sth = dbh->prepare($sql) or die dbh->errstr;
+  $sth->execute(@_)
+    or die "Unexpected error executing statement $sql: ". $sth->errstr;
+  my $row = $sth->fetchrow_arrayref or return '';
+  my $scalar = $row->[0];
+  defined($scalar) ? $scalar : '';
+}
 
-  if(grep /^$name$/, $self->virtual_fields) {
-    return qsearchs('part_virtual_field', { dbtable => $self->table,
-                                            name    => $name } );
-  }
-  ''
+=item count [ WHERE ]
+
+Convenience method for the common case of "SELECT COUNT(*) FROM table", 
+with optional WHERE.  Must be called as method on a class with an 
+associated table.
+
+=cut
+
+sub count {
+  my($self, $where) = (shift, shift);
+  my $table = $self->table or die 'count called on object of class '.ref($self);
+  my $sql = "SELECT COUNT(*) FROM $table";
+  $sql .= " WHERE $where" if $where;
+  $self->scalar_sql($sql);
 }
 
+=back
+
 =head1 SUBROUTINES
 
 =over 4
@@ -1587,40 +3177,34 @@ fields() and other subroutines elsewhere in FS::Record.
 sub real_fields {
   my $table = shift;
 
-  my($table_obj) = $dbdef->table($table);
+  my($table_obj) = dbdef->table($table);
   confess "Unknown table $table" unless $table_obj;
   $table_obj->columns;
 }
 
-=item reload_dbdef([FILENAME])
+=item pvf FIELD_NAME
 
-Load a database definition (see L<DBIx::DBSchema>), optionally from a
-non-default filename.  This command is executed at startup unless
-I<$FS::Record::setup_hack> is true.  Returns a DBIx::DBSchema object.
+Returns the FS::part_virtual_field object corresponding to a field in the 
+record (specified by FIELD_NAME).
 
 =cut
 
-sub reload_dbdef {
-  my $file = shift || $dbdef_file;
+sub pvf {
+  my ($self, $name) = (shift, shift);
 
-  unless ( exists $dbdef_cache{$file} ) {
-    warn "[debug]$me loading dbdef for $file\n" if $DEBUG;
-    $dbdef_cache{$file} = DBIx::DBSchema->load( $file )
-                            or die "can't load database schema from $file";
-  } else {
-    warn "[debug]$me re-using cached dbdef for $file\n" if $DEBUG;
+  if(grep /^$name$/, $self->virtual_fields) {
+    $name =~ s/^cf_//;
+    my $concat = [ "'cf_'", "name" ];
+    return qsearchs({   table   =>  'part_virtual_field',
+                        hashref =>  { dbtable => $self->table,
+                                      name    => $name 
+                                    },
+                        select  =>  'vfieldpart, dbtable, length, label, '.concat_sql($concat).' as name',
+                    });
   }
-  $dbdef = $dbdef_cache{$file};
+  ''
 }
 
-=item dbdef
-
-Returns the current database definition.  See L<DBIx::DBSchema>.
-
-=cut
-
-sub dbdef { $dbdef; }
-
 =item _quote VALUE, TABLE, COLUMN
 
 This is an internal function used to construct SQL statements.  It returns
@@ -1631,7 +3215,7 @@ type (see L<DBIx::DBSchema::Column>) does not end in `char' or `binary'.
 
 sub _quote {
   my($value, $table, $column) = @_;
-  my $column_obj = $dbdef->table($table)->column($column);
+  my $column_obj = dbdef->table($table)->column($column);
   my $column_type = $column_obj->type;
   my $nullable = $column_obj->null;
 
@@ -1639,46 +3223,29 @@ sub _quote {
        ( $nullable ? ' NULL' : ' NOT NULL' ).
        ")\n" if $DEBUG > 2;
 
-  if ( $value eq '' && $column_type =~ /^int/ ) {
-    if ( $nullable ) {
-      'NULL';
-    } else {
-      cluck "WARNING: Attempting to set non-null integer $table.$column null; ".
-            "using 0 instead";
-      0;
-    }
+  if ( $value eq '' && $nullable ) {
+    'NULL';
+  } elsif ( $value eq '' && $column_type =~ /^(int|numeric)/ ) {
+    cluck "WARNING: Attempting to set non-null integer $table.$column null; ".
+          "using 0 instead";
+    0;
   } elsif ( $value =~ /^\d+(\.\d+)?$/ && 
             ! $column_type =~ /(char|binary|text)$/i ) {
     $value;
+  } elsif (( $column_type =~ /^bytea$/i || $column_type =~ /(blob|varbinary)/i )
+           && driver_name eq 'Pg'
+          )
+  {
+    no strict 'subs';
+#    dbh->quote($value, { pg_type => PG_BYTEA() }); # doesn't work right
+    # Pg binary string quoting: convert each character to 3-digit octal prefixed with \\, 
+    # single-quote the whole mess, and put an "E" in front.
+    return ("E'" . join('', map { sprintf('\\\\%03o', ord($_)) } split(//, $value) ) . "'");
   } else {
     dbh->quote($value);
   }
 }
 
-=item vfieldpart_hashref TABLE
-
-Returns a hashref of virtual field names and vfieldparts applicable to the given
-TABLE.
-
-=cut
-
-sub vfieldpart_hashref {
-  my $self = shift;
-  my $table = $self->table;
-
-  return {} unless $self->dbdef->table('part_virtual_field');
-
-  my $dbh = dbh;
-  my $statement = "SELECT vfieldpart, name FROM part_virtual_field WHERE ".
-                  "dbtable = '$table'";
-  my $sth = $dbh->prepare($statement);
-  $sth->execute or croak "Execution of '$statement' failed: ".$dbh->errstr;
-  return { map { $_->{name}, $_->{vfieldpart} } 
-    @{$sth->fetchall_arrayref({})} };
-
-}
-
-
 =item hfields TABLE
 
 This is deprecated.  Don't use it.
@@ -1704,91 +3271,144 @@ sub _dump {
   } (fields($self->table)) );
 }
 
-sub encrypt {
-  my ($self, $value) = @_;
-  my $encrypted;
+sub DESTROY { return; }
+
+#sub DESTROY {
+#  my $self = shift;
+#  #use Carp qw(cluck);
+#  #cluck "DESTROYING $self";
+#  warn "DESTROYING $self";
+#}
+
+#sub is_tainted {
+#             return ! eval { join('',@_), kill 0; 1; };
+#         }
+
+=item str2time_sql [ DRIVER_NAME ]
+
+Returns a function to convert to unix time based on database type, such as
+"EXTRACT( EPOCH FROM" for Pg or "UNIX_TIMESTAMP(" for mysql.  See
+the str2time_sql_closing method to return a closing string rather than just
+using a closing parenthesis as previously suggested.
+
+You can pass an optional driver name such as "Pg", "mysql" or
+$dbh->{Driver}->{Name} to return a function for that database instead of
+the current database.
+
+=cut
+
+sub str2time_sql { 
+  my $driver = shift || driver_name;
+
+  return 'UNIX_TIMESTAMP('      if $driver =~ /^mysql/i;
+  return 'EXTRACT( EPOCH FROM ' if $driver =~ /^Pg/i;
+
+  warn "warning: unknown database type $driver; guessing how to convert ".
+       "dates to UNIX timestamps";
+  return 'EXTRACT(EPOCH FROM ';
 
-  if ($conf->exists('encryption')) {
-    if ($self->is_encrypted($value)) {
-      # Return the original value if it isn't plaintext.
-      $encrypted = $value;
-    } else {
-      $self->loadRSA;
-      if (ref($rsa_encrypt) =~ /::RSA/) { # We Can Encrypt
-        # RSA doesn't like the empty string so let's pack it up
-        # The database doesn't like the RSA data so uuencode it
-        my $length = length($value)+1;
-        $encrypted = pack("u*",$rsa_encrypt->encrypt(pack("Z$length",$value)));
-      } else {
-        die ("You can't encrypt w/o a valid RSA engine - Check your installation or disable encryption");
-      }
-    }
-  }
-  return $encrypted;
 }
 
-sub is_encrypted {
-  my ($self, $value) = @_;
-  # Possible Bug - Some work may be required here....
+=item str2time_sql_closing [ DRIVER_NAME ]
 
-  if (length($value) > 80) {
-    return 1;
-  } else {
-    return 0;
-  }
+Returns the closing suffix of a function to convert to unix time based on
+database type, such as ")::integer" for Pg or ")" for mysql.
+
+You can pass an optional driver name such as "Pg", "mysql" or
+$dbh->{Driver}->{Name} to return a function for that database instead of
+the current database.
+
+=cut
+
+sub str2time_sql_closing { 
+  my $driver = shift || driver_name;
+
+  return ' )::INTEGER ' if $driver =~ /^Pg/i;
+  return ' ) ';
 }
 
-sub decrypt {
-  my ($self,$value) = @_;
-  my $decrypted = $value; # Will return the original value if it isn't encrypted or can't be decrypted.
-  if ($conf->exists('encryption') && $self->is_encrypted($value)) {
-    $self->loadRSA;
-    if (ref($rsa_decrypt) =~ /::RSA/) {
-      my $encrypted = unpack ("u*", $value);
-      $decrypted =  unpack("Z*", $rsa_decrypt->decrypt($encrypted));
-    }
-  }
-  return $decrypted;
+=item regexp_sql [ DRIVER_NAME ]
+
+Returns the operator to do a regular expression comparison based on database
+type, such as '~' for Pg or 'REGEXP' for mysql.
+
+You can pass an optional driver name such as "Pg", "mysql" or
+$dbh->{Driver}->{Name} to return a function for that database instead of
+the current database.
+
+=cut
+
+sub regexp_sql {
+  my $driver = shift || driver_name;
+
+  return '~'      if $driver =~ /^Pg/i;
+  return 'REGEXP' if $driver =~ /^mysql/i;
+
+  die "don't know how to use regular expressions in ". driver_name." databases";
+
 }
 
-sub loadRSA {
-    my $self = shift;
-    #Initialize the Module
-    $rsa_module = 'Crypt::OpenSSL::RSA'; # The Default
+=item not_regexp_sql [ DRIVER_NAME ]
 
-    if ($conf->exists('encryptionmodule') && $conf->config('encryptionmodule') ne '') {
-      $rsa_module = $conf->config('encryptionmodule');
-    }
+Returns the operator to do a regular expression negation based on database
+type, such as '!~' for Pg or 'NOT REGEXP' for mysql.
+
+You can pass an optional driver name such as "Pg", "mysql" or
+$dbh->{Driver}->{Name} to return a function for that database instead of
+the current database.
+
+=cut
+
+sub not_regexp_sql {
+  my $driver = shift || driver_name;
+
+  return '!~'         if $driver =~ /^Pg/i;
+  return 'NOT REGEXP' if $driver =~ /^mysql/i;
+
+  die "don't know how to use regular expressions in ". driver_name." databases";
 
-    if (!$rsa_loaded) {
-	eval ("require $rsa_module"); # No need to import the namespace
-	$rsa_loaded++;
-    }
-    # Initialize Encryption
-    if ($conf->exists('encryptionpublickey') && $conf->config('encryptionpublickey') ne '') {
-      my $public_key = join("\n",$conf->config('encryptionpublickey'));
-      $rsa_encrypt = $rsa_module->new_public_key($public_key);
-    }
-    
-    # Intitalize Decryption
-    if ($conf->exists('encryptionprivatekey') && $conf->config('encryptionprivatekey') ne '') {
-      my $private_key = join("\n",$conf->config('encryptionprivatekey'));
-      $rsa_decrypt = $rsa_module->new_private_key($private_key);
-    }
 }
 
-sub DESTROY { return; }
+=item concat_sql [ DRIVER_NAME ] ITEMS_ARRAYREF
 
-#sub DESTROY {
-#  my $self = shift;
-#  #use Carp qw(cluck);
-#  #cluck "DESTROYING $self";
-#  warn "DESTROYING $self";
-#}
+Returns the items concatenated based on database type, using "CONCAT()" for
+mysql and " || " for Pg and other databases.
 
-#sub is_tainted {
-#             return ! eval { join('',@_), kill 0; 1; };
-#         }
+You can pass an optional driver name such as "Pg", "mysql" or
+$dbh->{Driver}->{Name} to return a function for that database instead of
+the current database.
+
+=cut
+
+sub concat_sql {
+  my $driver = ref($_[0]) ? driver_name : shift;
+  my $items = shift;
+
+  if ( $driver =~ /^mysql/i ) {
+    'CONCAT('. join(',', @$items). ')';
+  } else {
+    join('||', @$items);
+  }
+
+}
+
+=item midnight_sql DATE
+
+Returns an SQL expression to convert DATE (a unix timestamp) to midnight 
+on that day in the system timezone, using the default driver name.
+
+=cut
+
+sub midnight_sql {
+  my $driver = driver_name;
+  my $expr = shift;
+  if ( $driver =~ /^mysql/i ) {
+    "UNIX_TIMESTAMP(DATE(FROM_UNIXTIME($expr)))";
+  }
+  else {
+    "EXTRACT( EPOCH FROM DATE(TO_TIMESTAMP($expr)) )";
+  }
+}
 
 =back