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[dbsrgits/SQL-Translator.git] / lib / SQL / Translator / Schema / Index.pm

diff --git a/lib/SQL/Translator/Schema/Index.pm b/lib/SQL/Translator/Schema/Index.pm
index d4902d8..2a8593e 100644 (file)
--- a/lib/SQL/Translator/Schema/Index.pm
+++ b/lib/SQL/Translator/Schema/Index.pm
@@ -1,9 +1,7 @@
 package SQL::Translator::Schema::Index;
 
 # ----------------------------------------------------------------------
-# $Id: Index.pm,v 1.10 2004-11-05 13:19:31 grommit Exp $
-# ----------------------------------------------------------------------
-# Copyright (C) 2002-4 SQLFairy Authors
+# Copyright (C) 2002-2009 SQLFairy Authors
 #
 # This program is free software; you can redistribute it and/or
 # modify it under the terms of the GNU General Public License as
@@ -53,18 +51,20 @@ use base 'SQL::Translator::Schema::Object';
 
 use vars qw($VERSION $TABLE_COUNT $VIEW_COUNT);
 
-$VERSION = sprintf "%d.%02d", q$Revision: 1.10 $ =~ /(\d+)\.(\d+)/;
+$VERSION = '1.59';
 
 my %VALID_INDEX_TYPE = (
-    UNIQUE,    1,
-    NORMAL,    1,
-    FULL_TEXT, 1, # MySQL only (?)
+  UNIQUE         => 1,
+  NORMAL         => 1,
+  FULLTEXT       => 1, # MySQL only (?)
+  FULL_TEXT      => 1, # MySQL only (?)
+  SPATIAL        => 1, # MySQL only (?)
 );
 
 # ----------------------------------------------------------------------
 
 __PACKAGE__->_attributes( qw/
-    name type fields table
+    name type fields table options
 /);
 
 =pod
@@ -220,19 +220,74 @@ Get or set the index's type.
 
   my $type = $index->type('unique');
 
+Get or set the index's options (e.g., "using" or "where" for PG).  Returns
+
+Currently there are only four acceptable types: UNIQUE, NORMAL, FULL_TEXT,
+and SPATIAL. The latter two might be MySQL-specific. While both lowercase
+and uppercase types are acceptable input, this method returns the type in
+uppercase.
+
 =cut
 
-    my $self = shift;
+    my ( $self, $type ) = @_;
 
-    if ( my $type = shift ) {
-        return $self->error("Invalid index type: $type") 
+    if ( $type ) {
+        $type = uc $type;
+        return $self->error("Invalid index type: $type")
             unless $VALID_INDEX_TYPE{ $type };
         $self->{'type'} = $type;
     }
 
-    return $self->{'type'} || NORMAL;
+    return $self->{'type'} || 'NORMAL';
 }
 
+# ----------------------------------------------------------------------
+sub equals {
+
+=pod
+
+=head2 equals
+
+Determines if this index is the same as another
+
+  my $isIdentical = $index1->equals( $index2 );
+
+=cut
+
+    my $self = shift;
+    my $other = shift;
+    my $case_insensitive = shift;
+    my $ignore_index_names = shift;
+
+    return 0 unless $self->SUPER::equals($other);
+
+    unless ($ignore_index_names) {
+      unless ((!$self->name && ($other->name eq $other->fields->[0])) ||
+        (!$other->name && ($self->name eq $self->fields->[0]))) {
+        return 0 unless $case_insensitive ? uc($self->name) eq uc($other->name) : $self->name eq $other->name;
+      }
+    }
+    #return 0 unless $self->is_valid eq $other->is_valid;
+    return 0 unless $self->type eq $other->type;
+
+    # Check fields, regardless of order
+    my %otherFields = ();  # create a hash of the other fields
+    foreach my $otherField ($other->fields) {
+      $otherField = uc($otherField) if $case_insensitive;
+      $otherFields{$otherField} = 1;
+    }
+    foreach my $selfField ($self->fields) { # check for self fields in hash
+      $selfField = uc($selfField) if $case_insensitive;
+      return 0 unless $otherFields{$selfField};
+      delete $otherFields{$selfField};
+    }
+    # Check all other fields were accounted for
+    return 0 unless keys %otherFields == 0;
+
+    return 0 unless $self->_compare_objects(scalar $self->options, scalar $other->options);
+    return 0 unless $self->_compare_objects(scalar $self->extra, scalar $other->extra);
+    return 1;
+}
 
 # ----------------------------------------------------------------------
 sub DESTROY {
@@ -248,6 +303,6 @@ sub DESTROY {
 
 =head1 AUTHOR
 
-Ken Y. Clark E<lt>kclark@cpan.orgE<gt>.
+Ken Youens-Clark E<lt>kclark@cpan.orgE<gt>.
 
 =cut