- Added some stuff to MANIFEST.SKIP

[dbsrgits/SQL-Translator.git] / lib / SQL / Translator / Producer.pm

diff --git a/lib/SQL/Translator/Producer.pm b/lib/SQL/Translator/Producer.pm
index dff7fea..a7081c0 100644 (file)
--- a/lib/SQL/Translator/Producer.pm
+++ b/lib/SQL/Translator/Producer.pm
@@ -1,11 +1,9 @@
 package SQL::Translator::Producer;
 
 # -------------------------------------------------------------------
-# $Id: Producer.pm,v 1.5 2003-01-27 17:04:45 dlc Exp $
+# $Id$
 # -------------------------------------------------------------------
-# Copyright (C) 2003 Ken Y. Clark <kclark@cpan.org>,
-#                    darren chamberlain <darren@cpan.org>,
-#                    Chris Mungall <cjm@fruitfly.org>
+# Copyright (C) 2002-4 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
@@ -24,10 +22,41 @@ package SQL::Translator::Producer;
 
 use strict;
 use vars qw($VERSION);
-$VERSION = sprintf "%d.%02d", q$Revision: 1.5 $ =~ /(\d+)\.(\d+)/;
+$VERSION = sprintf "%d.%02d", q$Revision$ =~ /(\d+)\.(\d+)/;
 
 sub produce { "" }
 
+# Do not rely on this if you are not bundled with SQL::Translator.
+# -- rjbs, 2008-09-30
+## $exceptions contains an arrayref of paired values
+## Each pair contains a pattern match or string, and a value to be used as
+## the default if matched.
+## They are special per Producer, and provide support for the old 'now()'
+## default value exceptions
+sub _apply_default_value {
+  my (undef, $field_ref, $default, $exceptions) = @_;
+
+  if ($exceptions and ! ref $default) {
+    for (my $i = 0; $i < @$exceptions; $i += 2) {
+      my ($pat, $val) = @$exceptions[ $i, $i + 1 ];
+      if (ref $pat and $default =~ $pat) {
+          $default = $val;
+          last;
+      } elsif (lc $default eq lc $pat) {
+          $default = $val;
+          last
+      }
+    }
+  }
+
+  if (ref $default) {
+      $$field_ref .= " DEFAULT $$default";
+  } else {
+      $$field_ref .= " DEFAULT '$default'";
+  }
+
+}
+
 1;
 
 # -------------------------------------------------------------------
@@ -39,24 +68,47 @@ sub produce { "" }
 
 =head1 NAME
 
-SQL::Translator::Producer - base object for Producers
-
-=head1 SYNOPSIS
+SQL::Translator::Producer - describes how to write a producer
 
 =head1 DESCRIPTION
 
 Producer modules designed to be used with SQL::Translator need to
 implement a single function, called B<produce>.  B<produce> will be
-called with a data structure created by a SQL::Translator::Parser
-subclass.  It is expected to return a string containing a valid SQL
-create statement.
+called with the SQL::Translator object from which it is expected to 
+retrieve the SQL::Translator::Schema object which has been populated 
+by the parser.  It is expected to return a string.
+
+=head1 METHODS
+
+=over 4
+
+=item produce
+
+=item create_table($table)
+
+=item create_field($field)
+
+=item create_view($view)
+
+=item create_index($index)
+
+=item create_constraint($constraint)
+
+=item create_trigger($trigger)
+
+=item alter_field($from_field, $to_field)
+
+=item add_field($table, $new_field)
+
+=item drop_field($table, $old_field)
 
-=head1 AUTHOR
+=head1 AUTHORS
 
-Ken Y. Clark E<lt>kclark@cpan.orgE<gt>
+Darren Chamberlain E<lt>darren@cpan.orgE<gt>,
+Ken Y. Clark E<lt>kclark@cpan.orgE<gt>.
 
 =head1 SEE ALSO
 
-perl(1).
+perl(1), SQL::Translator, SQL::Translator::Schema.
 
 =cut