1 package Catalyst::Helper::Model::DBIC::Schema;
9 use UNIVERSAL::require;
13 Catalyst::Helper::Model::DBIC::Schema - Helper for DBIC Schema Models
17 script/create.pl model CatalystModelName DBIC::Schema MyApp::SchemaClass [ create=dynamic | create=static ] [ connect_info arguments ]
21 Helper for the DBIC Schema Models.
25 C<CatalystModelName> is the short name for the Catalyst Model class
26 being generated (i.e. callable with C<$c-E<gt>model('CatalystModelName')>).
28 C<MyApp::SchemaClass> is the fully qualified classname of your Schema,
29 which might or might not yet exist. Note that you should have a good
30 reason to create this under a new global namespace, otherwise use an
31 existing top level namespace for your schema class.
33 C<create=dynamic> instructs this Helper to generate the named Schema
34 class for you, basing it on L<DBIx::Class::Schema::Loader> (which
35 means the table information will always be dynamically loaded at
36 runtime from the database).
38 C<create=static> instructs this Helper to generate the named Schema
39 class for you, using L<DBIx::Class::Schema::Loader> in "one shot"
40 mode to create a standard, manually-defined L<DBIx::Class::Schema>
41 setup, based on what the Loader sees in your database at this moment.
42 A Schema/Model pair generated this way will not require
43 L<DBIx::Class::Schema::Loader> at runtime, and will not automatically
44 adapt itself to changes in your database structure. You can edit
45 the generated classes by hand to refine them.
47 C<connect_info> arguments are the same as what
48 DBIx::Class::Schema::connect expects, and are storage_type-specific.
49 For DBI-based storage, these arguments are the dsn, username,
50 password, and connect options, respectively. These are optional for
51 existing Schemas, but required if you use either of the C<create=>
54 Use of either of the C<create=> options requires L<DBIx::Class::Schema::Loader>.
56 =head1 TYPICAL EXAMPLES
58 # Use DBIx::Class::Schema::Loader to create a static DBIx::Class::Schema,
59 # and a Model which references it:
60 script/myapp_create.pl model CatalystModelName DBIC::Schema MyApp::SchemaClass create=static dbi:mysql:foodb myuname mypass
62 # Same, but with extra Schema::Loader args such as db_schema:
63 script/myapp_create.pl model CatalystModelName DBIC::Schema MyApp::SchemaClass create=static db_schema=foodb dbi:Pg:dbname=foodb myuname mypass
65 # Likewise, for multiple values such as a components:
66 script/myapp_create.pl model CatalystModelName DBIC::Schema MyApp::SchemaClass create=static components=Some::Component components=Some::OtherComponent dbi:Pg:dbname=foodb myuname mypass
68 # Create a dynamic DBIx::Class::Schema::Loader-based Schema,
69 # and a Model which references it:
70 script/myapp_create.pl model CatalystModelName DBIC::Schema MyApp::SchemaClass create=dynamic dbi:mysql:foodb myuname mypass
72 # Reference an existing Schema of any kind, and provide some connection information for ->config:
73 script/myapp_create.pl model CatalystModelName DBIC::Schema MyApp::SchemaClass dbi:mysql:foodb myuname mypass
75 # Same, but don't supply connect information yet (you'll need to do this
76 # in your app config, or [not recommended] in the schema itself).
77 script/myapp_create.pl model ModelName DBIC::Schema My::SchemaClass
86 my ( $self, $helper, $schema_class, @connect_info) = @_;
88 $helper->{schema_class} = $schema_class
89 or croak "Must supply schema class name";
92 if($connect_info[0] && $connect_info[0] =~ /^create=(dynamic|static)$/) {
98 $helper->{setup_connect_info} = 1;
99 my @helper_connect_info = @connect_info;
100 for(@helper_connect_info) {
101 $_ = qq{'$_'} if $_ !~ /^\s*[[{]/;
103 $helper->{connect_info} = \@helper_connect_info;
106 if($create eq 'dynamic') {
107 my @schema_parts = split(/\:\:/, $helper->{schema_class});
108 my $schema_file_part = pop @schema_parts;
110 my $schema_dir = File::Spec->catfile( $helper->{base}, 'lib', @schema_parts );
111 my $schema_file = File::Spec->catfile( $schema_dir, $schema_file_part . '.pm' );
113 $helper->mk_dir($schema_dir);
114 $helper->render_file( 'schemaclass', $schema_file );
116 elsif($create eq 'static') {
117 my $schema_dir = File::Spec->catfile( $helper->{base}, 'lib' );
118 DBIx::Class::Schema::Loader->use("dump_to_dir:$schema_dir", 'make_schema_at')
119 or croak "Cannot load DBIx::Class::Schema::Loader: $@";
122 while (@connect_info && $connect_info[0] !~ /^dbi:/) {
123 my ($key, $val) = split /=/, shift(@connect_info);
125 if (exists $extra_args{$key}) {
126 $extra_args{$key} = [ $extra_args{$key} ]
127 unless ref $extra_args{$key};
129 push @{ $extra_args{$key} }, $val;
131 $extra_args{$key} = $val;
135 my @loader_connect_info = @connect_info;
136 my $num = 6; # argument number on the commandline for "dbi:..."
137 for(@loader_connect_info) {
140 croak "Perl syntax error in commandline argument $num: $@" if $@;
145 # Check if we need to be backward-compatible.
148 my @schema_pm = split '::', $schema_class;
149 $schema_pm[-1] .= '.pm';
150 my $schema_file = File::Spec->catfile($helper->{base}, 'lib', @schema_pm);
152 if (-f $schema_file) {
153 my $schema_code = do { local (@ARGV, $/) = $schema_file; <> };
154 $compatible = 1 if $schema_code =~ /->load_classes/;
157 my @components = $compatible ? () : ('InflateColumn::DateTime');
159 if (exists $extra_args{components}) {
160 $extra_args{components} = [ $extra_args{components} ]
161 unless ref $extra_args{components};
163 push @components, @{ delete $extra_args{components} };
170 (%extra_args ? %extra_args : ()),
175 components => \@components
178 \@loader_connect_info,
182 my $file = $helper->{file};
183 $helper->render_file( 'compclass', $file );
188 General Catalyst Stuff:
190 L<Catalyst::Manual>, L<Catalyst::Test>, L<Catalyst::Request>,
191 L<Catalyst::Response>, L<Catalyst::Helper>, L<Catalyst>,
193 Stuff related to DBIC and this Model style:
195 L<DBIx::Class>, L<DBIx::Class::Schema>,
196 L<DBIx::Class::Schema::Loader>, L<Catalyst::Model::DBIC::Schema>
200 Brandon L Black, C<blblack@gmail.com>
204 This library is free software, you can redistribute it and/or modify
205 it under the same terms as Perl itself.
216 package [% schema_class %];
219 use base qw/DBIx::Class::Schema::Loader/;
221 __PACKAGE__->loader_options(
228 [% schema_class %] - DBIx::Class::Schema::Loader class
236 Generated by L<Catalyst::Model::DBIC::Schema> for use in L<[% class %]>
244 This library is free software, you can redistribute it and/or modify
245 it under the same terms as Perl itself.
255 use base 'Catalyst::Model::DBIC::Schema';
258 schema_class => '[% schema_class %]',
259 [% IF setup_connect_info %]connect_info => [
260 [% FOREACH arg = connect_info %][% arg %],
267 [% class %] - Catalyst DBIC Schema Model
274 L<Catalyst::Model::DBIC::Schema> Model using schema L<[% schema_class %]>
282 This library is free software, you can redistribute it and/or modify
283 it under the same terms as Perl itself.