+=head1 CLASS METHODS
+
+=over 4
+
+=item owed_sql
+
+Returns an SQL fragment to retreive the amount owed (charged minus credited and paid).
+
+=cut
+
+sub owed_sql {
+ my $class = shift;
+ 'charged - '. $class->paid_sql. ' - '. $class->credited_sql;
+}
+
+=item net_sql
+
+Returns an SQL fragment to retreive the net amount (charged minus credited).
+
+=cut
+
+sub net_sql {
+ my $class = shift;
+ 'charged - '. $class->credited_sql;
+}
+
+=item paid_sql
+
+Returns an SQL fragment to retreive the amount paid against this invoice.
+
+=cut
+
+sub paid_sql {
+ #my $class = shift;
+ "( SELECT COALESCE(SUM(amount),0) FROM cust_bill_pay
+ WHERE cust_bill.invnum = cust_bill_pay.invnum )";
+}
+
+=item credited_sql
+
+Returns an SQL fragment to retreive the amount credited against this invoice.
+
+=cut
+
+sub credited_sql {
+ #my $class = shift;
+ "( SELECT COALESCE(SUM(amount),0) FROM cust_credit_bill
+ WHERE cust_bill.invnum = cust_credit_bill.invnum )";
+}
+
+=item search_sql HASHREF
+
+Class method which returns an SQL WHERE fragment to search for parameters
+specified in HASHREF. Valid parameters are
+
+=over 4
+
+=item begin
+
+Epoch date (UNIX timestamp) setting a lower bound for _date values
+
+=item end
+
+Epoch date (UNIX timestamp) setting an upper bound for _date values
+
+=item invnum_min
+
+=item invnum_max
+
+=item agentnum
+
+=item owed
+
+=item net
+
+=item days
+
+=item newest_percust
+
+=back
+
+Note: validates all passed-in data; i.e. safe to use with unchecked CGI params.
+
+=cut
+
+sub search_sql {
+ my($class, $param) = @_;
+ if ( $DEBUG ) {
+ warn "$me search_sql called with params: \n".
+ join("\n", map { " $_: ". $param->{$_} } keys %$param ). "\n";
+ }
+
+ my @search = ();
+
+ if ( $param->{'begin'} =~ /^(\d+)$/ ) {
+ push @search, "cust_bill._date >= $1";
+ }
+ if ( $param->{'end'} =~ /^(\d+)$/ ) {
+ push @search, "cust_bill._date < $1";
+ }
+ if ( $param->{'invnum_min'} =~ /^(\d+)$/ ) {
+ push @search, "cust_bill.invnum >= $1";
+ }
+ if ( $param->{'invnum_max'} =~ /^(\d+)$/ ) {
+ push @search, "cust_bill.invnum <= $1";
+ }
+ if ( $param->{'agentnum'} =~ /^(\d+)$/ ) {
+ push @search, "cust_main.agentnum = $1";
+ }
+
+ push @search, '0 != '. FS::cust_bill->owed_sql
+ if $param->{'open'};
+
+ push @search, '0 != '. FS::cust_bill->net_sql
+ if $param->{'net'};
+
+ push @search, "cust_bill._date < ". (time-86400*$param->{'days'})
+ if $param->{'days'};
+
+ if ( $param->{'newest_percust'} ) {
+
+ #$distinct = 'DISTINCT ON ( cust_bill.custnum )';
+ #$orderby = 'ORDER BY cust_bill.custnum ASC, cust_bill._date DESC';
+
+ my @newest_where = map { my $x = $_;
+ $x =~ s/\bcust_bill\./newest_cust_bill./g;
+ $x;
+ }
+ grep ! /^cust_main./, @search;
+ my $newest_where = scalar(@newest_where)
+ ? ' AND '. join(' AND ', @newest_where)
+ : '';
+
+
+ push @search, "cust_bill._date = (
+ SELECT(MAX(newest_cust_bill._date)) FROM cust_bill AS newest_cust_bill
+ WHERE newest_cust_bill.custnum = cust_bill.custnum
+ $newest_where
+ )";
+
+ }
+
+ my $curuser = $FS::CurrentUser::CurrentUser;
+ if ( $curuser->username eq 'fs_queue'
+ && $param->{'CurrentUser'} =~ /^(\w+)$/ ) {
+ my $username = $1;
+ my $newuser = qsearchs('access_user', {
+ 'username' => $username,
+ 'disabled' => '',
+ } );
+ if ( $newuser ) {
+ $curuser = $newuser;
+ } else {
+ warn "$me WARNING: (fs_queue) can't find CurrentUser $username\n";
+ }
+ }
+
+ push @search, $curuser->agentnums_sql;
+
+ join(' AND ', @search );
+
+}
+
+=back
+