- Removed use of $Revision$ SVN keyword to generate VERSION variables; now sub-module...

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

diff --git a/lib/SQL/Translator/Schema/Field.pm b/lib/SQL/Translator/Schema/Field.pm
index 7e8fe3e..87bddb4 100644 (file)
--- a/lib/SQL/Translator/Schema/Field.pm
+++ b/lib/SQL/Translator/Schema/Field.pm
@@ -1,9 +1,9 @@
 package SQL::Translator::Schema::Field;
 
 # ----------------------------------------------------------------------
-# $Id: Field.pm,v 1.23 2005-06-27 21:59:19 duality72 Exp $
+# $Id$
 # ----------------------------------------------------------------------
-# 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
@@ -48,9 +48,7 @@ use SQL::Translator::Utils 'parse_list_arg';
 
 use base 'SQL::Translator::Schema::Object';
 
-use vars qw($VERSION $TABLE_COUNT $VIEW_COUNT);
-
-$VERSION = sprintf "%d.%02d", q$Revision: 1.23 $ =~ /(\d+)\.(\d+)/;
+use vars qw($TABLE_COUNT $VIEW_COUNT);
 
 # Stringify to our name, being careful not to pass any args through so we don't
 # accidentally set it to undef. We also have to tweak bool so the object is
@@ -61,12 +59,44 @@ use overload
     fallback => 1,
 ;
 
+use DBI qw(:sql_types);
+
+# Mapping from string to sql contstant
+our %type_mapping = (
+  integer => SQL_INTEGER,
+  int     => SQL_INTEGER,
+
+  smallint => SQL_SMALLINT,
+  bigint => 9999, # DBI doesn't export a constatn for this. Le suck
+
+  double => SQL_DOUBLE,
+
+  decimal => SQL_DECIMAL,
+  numeric => SQL_NUMERIC,
+  dec => SQL_DECIMAL,
+
+  bit => SQL_BIT,
+
+  date => SQL_DATE,
+  datetime => SQL_DATETIME,
+  timestamp => SQL_TIMESTAMP,
+  time => SQL_TIME,
+
+  char => SQL_CHAR,
+  varchar => SQL_VARCHAR,
+  binary => SQL_BINARY,
+  varbinary => SQL_VARBINARY,
+  tinyblob => SQL_BLOB,
+  blob => SQL_BLOB,
+  text => SQL_LONGVARCHAR
+
+);
 # ----------------------------------------------------------------------
 
 __PACKAGE__->_attributes( qw/
     table name data_type size is_primary_key is_nullable
     is_auto_increment default_value comments is_foreign_key
-    is_unique order
+    is_unique order sql_data_type
 /);
 
 =pod
@@ -132,10 +162,28 @@ Get or set the field's data type.
 =cut
 
     my $self = shift;
-    $self->{'data_type'} = shift if @_;
+    if (@_) {
+      $self->{'data_type'} = $_[0];
+      $self->{'sql_data_type'} = $type_mapping{lc $_[0]} || SQL_UNKNOWN_TYPE unless exists $self->{sql_data_type};
+    }
     return $self->{'data_type'} || '';
 }
 
+sub sql_data_type {
+
+=head2 sql_data_type
+
+Constant from DBI package representing this data type. See L<DBI/DBI Constants>
+for more details.
+
+=cut
+
+    my $self = shift;
+    $self->{sql_data_type} = shift if @_;
+    return $self->{sql_data_type} || 0;
+
+}
+
 # ----------------------------------------------------------------------
 sub default_value {
 
@@ -548,6 +596,24 @@ also be used to get the table name.
     return $self->{'table'};
 }
 
+sub parsed_field {
+
+=head2 
+
+Returns the field exactly as the parser found it
+
+=cut
+
+    my $self = shift;
+
+    if (@_) {
+      my $value = shift;
+      $self->{parsed_field} = $value;
+      return $value || $self;
+    }
+    return $self->{parsed_field} || $self;
+}
+
 # ----------------------------------------------------------------------
 sub equals {
 
@@ -567,18 +633,41 @@ Determines if this field is the same as another
     
     return 0 unless $self->SUPER::equals($other);
     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->data_type eq $other->data_type;
+
+    # Comparing types: use sql_data_type if both are not 0. Else use string data_type
+    if ($self->sql_data_type && $other->sql_data_type) {
+        return 0 unless $self->sql_data_type == $other->sql_data_type
+    } else {
+        return 0 unless lc($self->data_type) eq lc($other->data_type)
+    }
+
     return 0 unless $self->size eq $other->size;
-    return 0 unless defined $self->default_value eq defined $other->default_value;
-    return 0 if defined $self->default_value && $self->default_value ne $other->default_value;
+
+    {
+        my $lhs = $self->default_value;
+           $lhs = \'NULL' unless defined $lhs;
+        my $lhs_is_ref = ! ! ref $lhs;
+
+        my $rhs = $other->default_value;
+           $rhs = \'NULL' unless defined $rhs;
+        my $rhs_is_ref = ! ! ref $rhs;
+
+        # If only one is a ref, fail. -- rjbs, 2008-12-02
+        return 0 if $lhs_is_ref xor $rhs_is_ref;
+
+        my $effective_lhs = $lhs_is_ref ? $$lhs : $lhs;
+        my $effective_rhs = $rhs_is_ref ? $$rhs : $rhs;
+
+        return 0 if $effective_lhs ne $effective_rhs;
+    }
+
     return 0 unless $self->is_nullable eq $other->is_nullable;
-    return 0 unless $self->is_unique eq $other->is_unique;
+#    return 0 unless $self->is_unique eq $other->is_unique;
     return 0 unless $self->is_primary_key eq $other->is_primary_key;
-    return 0 unless $self->is_foreign_key eq $other->is_foreign_key;
+#    return 0 unless $self->is_foreign_key eq $other->is_foreign_key;
     return 0 unless $self->is_auto_increment eq $other->is_auto_increment;
 #    return 0 unless $self->comments eq $other->comments;
-    return 0 unless $self->_compare_objects($self->extra, $other->extra);
+    return 0 unless $self->_compare_objects(scalar $self->extra, scalar $other->extra);
     return 1;
 }