From: Ken Youens-Clark <kclark@cpan.org>
Date: Mon, 9 Jun 2003 05:37:04 +0000 (+0000)
Subject: A POD producer.
X-Git-Tag: v0.02~42
X-Git-Url: http://git.shadowcat.co.uk/gitweb/gitweb.cgi?a=commitdiff_plain;h=2a267f86677d9b6b95be017ad577409302b10089;p=dbsrgits%2FSQL-Translator.git

A POD producer.
---

diff --git a/lib/SQL/Translator/Producer/POD.pm b/lib/SQL/Translator/Producer/POD.pm
new file mode 100644
index 0000000..76b618a
--- /dev/null
+++ b/lib/SQL/Translator/Producer/POD.pm
@@ -0,0 +1,141 @@
+package SQL::Translator::Producer::POD;
+
+# -------------------------------------------------------------------
+# $Id: POD.pm,v 1.1 2003-06-09 05:37:04 kycl4rk Exp $
+# -------------------------------------------------------------------
+# Copyright (C) 2003 Ken Y. Clark <kclark@cpan.org>
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License as
+# published by the Free Software Foundation; version 2.
+#
+# This program is distributed in the hope that it will be useful, but
+# WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+# 02111-1307  USA
+# -------------------------------------------------------------------
+
+use strict;
+use vars qw[ $VERSION ];
+$VERSION = sprintf "%d.%02d", q$Revision: 1.1 $ =~ /(\d+)\.(\d+)/;
+
+use SQL::Translator::Schema::Constants;
+use SQL::Translator::Utils qw(header_comment);
+
+# -------------------------------------------------------------------
+sub produce {
+    my $t           = shift;
+    my $schema      = $t->schema;
+    my $schema_name = $schema->name || 'Schema';
+    my $args        = $t->producer_args;
+
+    my $pod = "=pod\n\n=head1 DESCRIPTION\n\n$schema_name\n\n=head1 TABLES\n\n";
+
+    for my $table ( $schema->get_tables ) {
+        my $table_name = $table->name or next;
+        my @fields     = $table->get_fields or next;
+        $pod .= "=head2 $table_name\n\n=head3 FIELDS\n\n";
+
+        #
+        # Fields
+        #
+        for my $field ( $table->get_fields ) {
+            $pod .= "=head4 " . $field->name . "\n\n=over 4\n\n";
+
+            my $data_type = $field->data_type;
+            my $size      = $field->size;
+            $data_type   .= "($size)" if $size;
+
+            $pod .= "=item * $data_type\n\n";
+            $pod .= "=item * PRIMARY KEY\n\n" if $field->is_primary_key;
+
+            my $default = $field->default_value;
+            $pod .= "=item * Default '$default' \n\n" if defined $default;
+
+            $pod .= sprintf( "=item * Nullable '%s' \n\n",
+                $field->is_nullable ? 'Yes' : 'No' );
+
+            $pod .= "=back\n\n";
+        }
+
+        #
+        # Indices
+        #
+        if ( my @indices = $table->get_indices ) {
+            $pod .= "=head3 INDICES\n\n";
+            for my $index ( @indices ) {
+                $pod .= "=head4 " . $index->type . "\n\n=over 4\n\n";
+                $pod .= "=item * Fields = " . 
+                    join(', ', $index->fields ) . "\n\n";
+                $pod .= "=back\n\n";
+            }
+        }
+
+        #
+        # Constraints
+        #
+        if ( my @constraints = $table->get_constraints ) {
+            $pod .= "=head3 CONSTRAINTS\n\n";
+            for my $c ( @constraints ) {
+                $pod .= "=head4 " . $c->type . "\n\n=over 4\n\n";
+                $pod .= "=item * Fields = " . 
+                    join(', ', $c->fields ) . "\n\n";
+
+                if ( $c->type eq FOREIGN_KEY ) {
+                    $pod .= "=item * Reference Table = " . 
+                        $c->reference_table . "\n\n";
+                    $pod .= "=item * Reference Fields = " . 
+                        join(', ', $c->reference_fields ) . "\n\n";
+                }
+
+                if ( my $update = $c->on_update ) {
+                    $pod .= "=item * On update = $update";
+                }
+
+                if ( my $delete = $c->on_delete ) {
+                    $pod .= "=item * On delete = $delete";
+                }
+
+                $pod .= "=back\n\n";
+            }
+        }
+    }
+
+    $pod .= "=head1 PRODUCED BY\n\n" . header_comment('', ''). "=cut";
+    return $pod;
+}
+
+1;
+
+# -------------------------------------------------------------------
+# Expect poison from the standing water.
+# William Blake
+# -------------------------------------------------------------------
+
+=head1 NAME
+
+SQL::Translator::Producer::POD - POD producer for SQL::Translator
+
+=head1 SYNOPSIS
+
+  use SQL::Translator::Producer::POD;
+
+=head1 DESCRIPTION
+
+Creates a POD description of each table, field, index, and constraint.  
+A good starting point for text documentation of a schema.
+
+=head1 AUTHOR
+
+Ken Y. Clark E<lt>kclark@cpan.orgE<gt>
+
+=head1 SEE ALSO
+
+perldoc perlpod.
+
+=cut