X-Git-Url: http://git.freeside.biz/gitweb/?a=blobdiff_plain;f=DBSchema%2FDBD%2FPg.pm;h=0bf4ae4e386daba88008908dd0d4cb97c21d7806;hb=01e769f4c32d9fcae64746252d2ded26fc0e35ae;hp=30e7ecfcb0b99c2ea7e4fe0ba297db903916d0d4;hpb=c09b11401093a3ce923b631ffdd8a8c4a26c35aa;p=DBIx-DBSchema.git

diff --git a/DBSchema/DBD/Pg.pm b/DBSchema/DBD/Pg.pm
index 30e7ecf..0bf4ae4 100644
--- a/DBSchema/DBD/Pg.pm
+++ b/DBSchema/DBD/Pg.pm
@@ -1,18 +1,12 @@
 package DBIx::DBSchema::DBD::Pg;
+use base qw(DBIx::DBSchema::DBD);
 
 use strict;
-use vars qw($VERSION @ISA %typemap);
-use DBD::Pg 1.32;
-use DBIx::DBSchema::DBD;
+use DBD::Pg 1.41;
 
-$VERSION = '0.17';
-@ISA = qw(DBIx::DBSchema::DBD);
+our $VERSION = '0.20';
 
-die "DBD::Pg version 1.32 or 1.41 (or later) required--".
-    "this is only version $DBD::Pg::VERSION\n"
-  if $DBD::Pg::VERSION != 1.32 && $DBD::Pg::VERSION < 1.41;
-
-%typemap = (
+our %typemap = (
   'BLOB'           => 'BYTEA',
   'LONG VARBINARY' => 'BYTEA',
   'TIMESTAMP'      => 'TIMESTAMP WITH TIME ZONE',
@@ -170,6 +164,56 @@ END
   $row->{'indisunique'};
 }
 
+#using this
+#******** QUERY **********
+#SELECT conname,
+#  pg_catalog.pg_get_constraintdef(r.oid, true) as condef
+#FROM pg_catalog.pg_constraint r
+#WHERE r.conrelid = '16457' AND r.contype = 'f' ORDER BY 1;
+#**************************
+
+# what's this do?
+#********* QUERY **********
+#SELECT conname, conrelid::pg_catalog.regclass,
+#  pg_catalog.pg_get_constraintdef(c.oid, true) as condef
+#FROM pg_catalog.pg_constraint c
+#WHERE c.confrelid = '16457' AND c.contype = 'f' ORDER BY 1;
+#**************************
+
+sub constraints {
+  my($proto, $dbh, $table) = @_;
+  my $sth = $dbh->prepare(<<END) or die $dbh->errstr;
+    SELECT conname, pg_catalog.pg_get_constraintdef(r.oid, true) as condef
+      FROM pg_catalog.pg_constraint r
+        WHERE r.conrelid = ( SELECT oid FROM pg_class
+                               WHERE relname = '$table'
+                                 AND pg_catalog.pg_table_is_visible(oid)
+                           )
+          AND r.contype = 'f'
+END
+  $sth->execute;
+
+  map { $_->{condef}
+        =~ /^FOREIGN KEY \(([\w\, ]+)\) REFERENCES (\w+)\(([\w\, ]+)\)\s*(.*)$/i
+            or die "unparsable constraint: ". $_->{condef};
+        my($columns, $table, $references, $etc ) = ($1, $2, $3, $4);
+        my $match = ( $etc =~ /MATCH (\w+)/i ) ? "MATCH $1" : '';
+        my $on_delete = ( $etc =~ /ON DELETE ((NO |SET )?\w+)/i ) ? $1 : '';
+        my $on_update = ( $etc =~ /ON UPDATE ((NO |SET )?\w+)/i ) ? $1 : '';
+        warn $etc if $etc;
+        +{ 'constraint' => $_->{conname},
+           'columns'    => [ split(/,\s*/, $columns) ],
+           'table'      => $table,
+           'references' => [ split(/,\s*/, $references) ],
+           'match'      => $match,
+           'on_delete'  => $on_delete,
+           'on_update'  => $on_update,
+         };
+      }
+    grep $_->{condef} =~ /^\s*FOREIGN\s+KEY/,
+      @{ $sth->fetchall_arrayref( {} ) };
+}
+
 sub add_column_callback {
   my( $proto, $dbh, $table, $column_obj ) = @_;
   my $name = $column_obj->name;
@@ -235,15 +279,16 @@ sub alter_column_callback {
   my $name = $old_column->name;
 
   my %canonical = (
-    'SMALLINT'  => 'INT2',
-    'INT'       => 'INT4',
-    'BIGINT'    => 'INT8',
-    'SERIAL'    => 'INT4',
-    'BIGSERIAL' => 'INT8',
-    'DECIMAL'   => 'NUMERIC',
-    'REAL'      => 'FLOAT4',
-    'BLOB'      => 'BYTEA',
-    'TIMESTAMP' => 'TIMESTAMPTZ',
+    'SMALLINT'         => 'INT2',
+    'INT'              => 'INT4',
+    'BIGINT'           => 'INT8',
+    'SERIAL'           => 'INT4',
+    'BIGSERIAL'        => 'INT8',
+    'DECIMAL'          => 'NUMERIC',
+    'REAL'             => 'FLOAT4',
+    'DOUBLE PRECISION' => 'FLOAT8',
+    'BLOB'             => 'BYTEA',
+    'TIMESTAMP'        => 'TIMESTAMPTZ',
   );
   foreach ($old_column, $new_column) {
     $_->type($canonical{uc($_->type)}) if $canonical{uc($_->type)};
@@ -269,7 +314,7 @@ sub alter_column_callback {
     if ( $pg_server_version >= 80000 ) {
 
       $hashref->{'sql_alter_type'} =
-        "ALTER TABLE $table ALTER COLUMN ". $new_column->name.
+        "ALTER COLUMN ". $new_column->name.
         " TYPE ". $new_column->type.
         ( ( defined($new_column->length) && $new_column->length )
               ? '('.$new_column->length.')'
@@ -348,15 +393,13 @@ Ivan Kohler <ivan-dbix-dbschema@420.am>
 
 Copyright (c) 2000 Ivan Kohler
 Copyright (c) 2000 Mail Abuse Prevention System LLC
-Copyright (c) 2009-2010 Freeside Internet Services, Inc.
+Copyright (c) 2009-2013 Freeside Internet Services, Inc.
 All rights reserved.
 This program is free software; you can redistribute it and/or modify it under
 the same terms as Perl itself.
 
 =head1 BUGS
 
-Yes.
-
 columns doesn't return column default information.
 
 =head1 SEE ALSO