1 package SQL::Translator::Producer::TTSchema;
3 # -------------------------------------------------------------------
4 # $Id: TTSchema.pm,v 1.3 2003-08-20 22:55:06 kycl4rk Exp $
5 # -------------------------------------------------------------------
6 # Copyright (C) 2003 Mark Addison <grommit@users.sourceforge.net>,
7 # Ken Y. Clark <kclark@cpan.org>.
9 # This program is free software; you can redistribute it and/or
10 # modify it under the terms of the GNU General Public License as
11 # published by the Free Software Foundation; version 2.
13 # This program is distributed in the hope that it will be useful, but
14 # WITHOUT ANY WARRANTY; without even the implied warranty of
15 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 # General Public License for more details.
18 # You should have received a copy of the GNU General Public License
19 # along with this program; if not, write to the Free Software
20 # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
22 # -------------------------------------------------------------------
28 SQL::Translator::Producer::TTSchema -
29 Produces output using the Template Toolkit from a SQL schema
34 my $translator = SQL::Translator->new(
36 filename => 'foo_schema.sql',
39 ttfile => 'foo_template.tt',
42 print $translator->translate;
46 Produces schema output using a given Template Tookit template.
48 It needs one additional producer_arg of C<ttfile> which is the file
49 name of the template to use. This template will be passed a single
50 argument called C<schema>, which is the
51 C<SQL::Translator::Producer::Schema> object, which you can then use to
52 walk the schema via the methods documented in that module.
54 Here's a brief example of what the template could look like:
56 database: [% schema.database %]
58 [% FOREACH table = schema.get_tables %]
61 [% FOREACH field = table.get_fields %]
62 [% field.name %] [% field.data_type %]([% field.size %])
66 See F<t/data/template/basic.tt> for a more complete example.
68 You can also set any of the options used to initiallize the Template object by
69 adding them to your producer_args. See Template Toolkit docs for details of
72 $translator = SQL::Translator->new(
75 ttfile => 'foo_template.tt',
76 INCLUDE_PATH => '/foo/templates/tt',
81 You can use this producer to create any type of text output you like,
82 even using it to create your own versions of what the other producers
83 make. For example, you could create a template that translates the
84 schema into MySQL's syntax, your own HTML documentation, your own
85 Class::DBI classes (or some other code) -- the opportunities are
90 # -------------------------------------------------------------------
94 use vars qw[ $DEBUG $VERSION @EXPORT_OK ];
95 $VERSION = sprintf "%d.%02d", q$Revision: 1.3 $ =~ /(\d+)\.(\d+)/;
96 $DEBUG = 0 unless defined $DEBUG;
101 use base qw(Exporter);
102 @EXPORT_OK = qw(produce);
104 use SQL::Translator::Utils 'debug';
107 my $translator = shift;
108 local $DEBUG = $translator->debug;
109 my $scma = $translator->schema;
110 my $args = $translator->producer_args;
111 my $file = delete $args->{'ttfile'} or die "No template file!";
113 debug "Processing template $file\n";
115 my $tt = Template->new(
117 ABSOLUTE => 1, # Set so we can use from the command line sensibly
118 RELATIVE => 1, # Maybe the cmd line code should set it! Security!
119 %$args, # Allow any TT opts to be passed in the producer_args
120 ) || die "Failed to initialize Template object: ".Template->error;
122 $tt->process( $file, { schema => $scma }, \$out )
123 or die "Error processing template '$file': ".$tt->error;
130 # -------------------------------------------------------------------
136 Mark Addison E<lt>grommit@users.sourceforge.netE<gt>.
140 B<More template vars?> e.g. [% tables %] as a shortcut for
141 [% schema.get_tables %].