1 package SQL::Translator::Producer::POD;
5 SQL::Translator::Producer::POD - POD producer for SQL::Translator
11 my $t = SQL::Translator->new( parser => '...', producer => 'POD', '...' );
16 Creates a POD description of each table, field, index, and constraint.
17 A good starting point for text documentation of a schema. You can
18 easily convert the output to HTML or text using "perldoc" or other
19 interesting formats using Pod::POM or Template::Toolkit's POD plugin.
25 our $VERSION = '1.59';
27 use SQL::Translator::Schema::Constants;
28 use SQL::Translator::Utils qw(header_comment);
32 my $schema = $t->schema;
33 my $schema_name = $schema->name || 'Schema';
34 my $args = $t->producer_args;
35 my $title = $args->{'title'} || $schema_name;
37 my $pod = "=pod\n\n=head1 DESCRIPTION\n\n$title\n\n=head1 TABLES\n\n";
39 for my $table ( $schema->get_tables ) {
40 my $table_name = $table->name or next;
41 my @fields = $table->get_fields or next;
42 $pod .= "=head2 $table_name\n\n=head3 FIELDS\n\n";
47 for my $field ( @fields ) {
48 $pod .= "=head4 " . $field->name . "\n\n=over 4\n\n";
50 my $data_type = $field->data_type;
51 my $size = $field->size;
52 $data_type .= "($size)" if $size;
54 $pod .= "=item * $data_type\n\n";
55 $pod .= "=item * PRIMARY KEY\n\n" if $field->is_primary_key;
57 my $default = $field->default_value;
58 $pod .= "=item * Default '$default' \n\n" if defined $default;
60 $pod .= sprintf( "=item * Nullable '%s' \n\n",
61 $field->is_nullable ? 'Yes' : 'No' );
69 if ( my @indices = $table->get_indices ) {
70 $pod .= "=head3 INDICES\n\n";
71 for my $index ( @indices ) {
72 $pod .= "=head4 " . $index->type . "\n\n=over 4\n\n";
73 $pod .= "=item * Fields = " .
74 join(', ', $index->fields ) . "\n\n";
82 if ( my @constraints = $table->get_constraints ) {
83 $pod .= "=head3 CONSTRAINTS\n\n";
84 for my $c ( @constraints ) {
85 $pod .= "=head4 " . $c->type . "\n\n=over 4\n\n";
86 $pod .= "=item * Fields = " .
87 join(', ', $c->fields ) . "\n\n";
89 if ( $c->type eq FOREIGN_KEY ) {
90 $pod .= "=item * Reference Table = L</" .
91 $c->reference_table . ">\n\n";
92 $pod .= "=item * Reference Fields = " .
93 join(', ', map {"L</$_>"} $c->reference_fields ) .
97 if ( my $update = $c->on_update ) {
98 $pod .= "=item * On update = $update\n\n";
101 if ( my $delete = $c->on_delete ) {
102 $pod .= "=item * On delete = $delete\n\n";
110 my $header = ( map { $_ || () } split( /\n/, header_comment('', '') ) )[0];
111 $header =~ s/^Created by //;
112 $pod .= "=head1 PRODUCED BY\n\n$header\n\n=cut";
119 # -------------------------------------------------------------------
120 # Expect poison from the standing water.
122 # -------------------------------------------------------------------
128 Ken Youens-Clark E<lt>kclark@cpan.orgE<gt>.
132 Jonathan Yu E<lt>frequency@cpan.orgE<gt>
136 perldoc, perlpod, Pod::POM, Template::Manual::Plugins.