package SQL::Translator::Producer::GraphViz;
# -------------------------------------------------------------------
-# $Id: GraphViz.pm,v 1.7 2003-08-16 13:23:07 rossta Exp $
+# $Id: GraphViz.pm,v 1.12 2004-02-20 02:41:47 dlc Exp $
# -------------------------------------------------------------------
-# Copyright (C) 2003 Ken Y. Clark <kclark@cpan.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
# 02111-1307 USA
# -------------------------------------------------------------------
+=pod
+
+=head1 NAME
+
+SQL::Translator::Producer::GraphViz - GraphViz producer for SQL::Translator
+
+=head1 SYNOPSIS
+
+ use SQL::Translator;
+
+ my $trans = new SQL::Translator(
+ from => 'MySQL', # or your db of choice
+ to => 'GraphViz',
+ producer_args => {
+ out_file => 'schema.png',
+ add_color => 1,
+ show_constraints => 1,
+ show_datatypes => 1,
+ show_col_sizes => 1
+ }
+ ) or die SQL::Translator->error;
+
+ $trans->translate or die $trans->error;
+
+=head1 DESCRIPTION
+
+Creates a graph of a schema using the amazing graphviz
+(see http://www.graphviz.org/) application (via
+the GraphViz module). It's nifty--you should try it!
+
+=head1 PRODUCER ARGS
+
+=over 4
+
+=item * out_file
+
+the name of the file where the graphviz graphic is to be written
+
+=item * layout (DEFAULT: 'dot')
+
+determines which layout algorithm GraphViz will use; possible
+values are 'dot' (the default GraphViz layout for directed graph
+layouts), 'neato' (for undirected graph layouts - spring model)
+or 'twopi' (for undirected graph layouts - circular)
+
+=item * node_shape (DEFAULT: 'record')
+
+sets the node shape of each table in the graph; this can be
+one of 'record', 'plaintext', 'ellipse', 'circle', 'egg',
+'triangle', 'box', 'diamond', 'trapezium', 'parallelogram',
+'house', 'hexagon', or 'octagon'
+
+=item * output_type (DEFAULT: 'png')
+
+sets the file type of the output graphic; possible values are
+'ps', 'hpgl', 'pcl', 'mif', 'pic', 'gd', 'gd2', 'gif', 'jpeg',
+'png', 'wbmp', 'cmap', 'ismap', 'imap', 'vrml', 'vtx', 'mp',
+'fig', 'svg', 'canon', 'plain' or 'text' (see GraphViz for
+details on each of these)
+
+=item * width (DEFAULT: 8.5)
+
+width (in inches) of the output graphic
+
+=item * height (DEFAULT: 11)
+
+height (in inches) of the output grahic
+
+=item * show_fields (DEFAULT: true)
+
+if set to a true value, the names of the colums in a table will
+be displayed in each table's node
+
+=item * show_fk_only
+
+if set to a true value, only columns which are foreign keys
+will be displayed in each table's node
+
+=item * show_datatypes
+
+if set to a true value, the datatype of each column will be
+displayed next to each column's name; this option will have no
+effect if the value of show_fields is set to false
+
+=item * show_col_sizes
+
+if set to a true value, the size (in bytes) of each CHAR and
+VARCHAR column will be displayed in parentheses next to the
+column's name; this option will have no effect if the value of
+show_fields is set to false
+
+=item * show_constraints
+
+if set to a true value, a field's constraints (i.e., its
+primary-key-ness, its foreign-key-ness and/or its uniqueness)
+will appear as a comma-separated list in brackets next to the
+field's name; this option will have no effect if the value of
+show_fields is set to false
+
+=item * add_color
+
+if set to a true value, the graphic will have a background
+color of 'lightgoldenrodyellow'; otherwise the background
+color will be white
+
+=item * natural_join
+
+if set to a true value, the make_natural_join method of
+SQL::Translator::Schema will be called before generating the
+graph; a true value for join_pk_only (see below) implies a
+true value for this option
+
+=item * join_pk_only
+
+the value of this option will be passed as the value of the
+like-named argument in the make_natural_join method (see
+natural_join above) of SQL::Translator::Schema, if either the
+value of this option or the natural_join option is set to true
+
+=item * skip_fields
+
+the value of this option will be passed as the value of the
+like-named argument in the make_natural_join method (see
+natural_join above) of SQL::Translator::Schema, if either
+the natural_join or join_pk_only options has a true value
+
+=back
+
+=cut
+
use strict;
use GraphViz;
use Data::Dumper;
use SQL::Translator::Utils qw(debug);
use vars qw[ $VERSION $DEBUG ];
-$VERSION = sprintf "%d.%02d", q$Revision: 1.7 $ =~ /(\d+)\.(\d+)/;
+$VERSION = sprintf "%d.%02d", q$Revision: 1.12 $ =~ /(\d+)\.(\d+)/;
$DEBUG = 0 unless defined $DEBUG;
use constant VALID_LAYOUT => {
my $args = $t->producer_args;
local $DEBUG = $t->debug;
- my $out_file = $args->{'out_file'} || '';
- my $layout = $args->{'layout'} || 'neato';
- my $node_shape = $args->{'node_shape'} || 'record';
- my $output_type = $args->{'output_type'} || 'png';
- my $width = defined $args->{'width'}
- ? $args->{'width'} : 8.5;
- my $height = defined $args->{'height'}
- ? $args->{'height'} : 11;
- my $show_fields = defined $args->{'show_fields'}
- ? $args->{'show_fields'} : 1;
- my $add_color = $args->{'add_color'};
- my $natural_join = $args->{'natural_join'};
- my $show_fk_only = $args->{'show_fk_only'};
- my $join_pk_only = $args->{'join_pk_only'};
- my $skip_fields = $args->{'skip_fields'};
- my %skip = map { s/^\s+|\s+$//g; $_, 1 }
- split ( /,/, $skip_fields );
- $natural_join ||= $join_pk_only;
+ my $out_file = $args->{'out_file'} || '';
+ my $layout = $args->{'layout'} || 'dot';
+ my $node_shape = $args->{'node_shape'} || 'record';
+ my $output_type = $args->{'output_type'} || 'png';
+ my $width = defined $args->{'width'}
+ ? $args->{'width'} : 8.5;
+ my $height = defined $args->{'height'}
+ ? $args->{'height'} : 11;
+ my $show_fields = defined $args->{'show_fields'}
+ ? $args->{'show_fields'} : 1;
+ my $add_color = $args->{'add_color'};
+ my $natural_join = $args->{'natural_join'};
+ my $show_fk_only = $args->{'show_fk_only'};
+ my $show_datatypes = $args->{'show_datatypes'};
+ my $show_sizes = $args->{'show_sizes'};
+ my $show_constraints = $args->{'show_constraints'};
+ my $join_pk_only = $args->{'join_pk_only'};
+ my $skip_fields = $args->{'skip_fields'};
+ my %skip = map { s/^\s+|\s+$//g; $_, 1 }
+ split ( /,/, $skip_fields );
+ $natural_join ||= $join_pk_only;
$schema->make_natural_joins(
join_pk_only => $join_pk_only,
@fields = grep { $_->is_foreign_key } @fields;
}
- my $field_str = join('\l', map { $_->name } @fields);
+ my $field_str = join(
+ '\l',
+ map {
+ '-\ '
+ . $_->name
+ . ( $show_datatypes ? '\ ' . $_->data_type : '')
+ . ( $show_sizes && ! $show_datatypes ? '\ ' : '')
+ . ( $show_sizes && $_->data_type =~ /^(VAR)?CHAR2?$/i ? '(' . $_->size . ')' : '')
+ . ( $show_constraints ?
+ ( $_->is_primary_key || $_->is_foreign_key || $_->is_unique ? '\ [' : '' )
+ . ( $_->is_primary_key ? 'PK' : '' )
+ . ( $_->is_primary_key && ($_->is_foreign_key || $_->is_unique) ? ',' : '' )
+ . ( $_->is_foreign_key ? 'FK' : '' )
+ . ( $_->is_unique && ($_->is_primary_key || $_->is_foreign_key) ? ',' : '' )
+ . ( $_->is_unique ? 'U' : '' )
+ . ( $_->is_primary_key || $_->is_foreign_key || $_->is_unique ? ']' : '' )
+ : '' )
+ . '\ '
+ } @fields
+ ) . '\l';
my $label = $show_fields ? "{$table_name|$field_str}" : $table_name;
$gv->add_node( $table_name, label => $label );
1;
-=pod
-
-=head1 NAME
+# -------------------------------------------------------------------
-SQL::Translator::Producer::GraphViz - GraphViz producer for SQL::Translator
+=pod
=head1 AUTHOR
Ken Y. Clark E<lt>kclark@cpan.orgE<gt>
+=head1 SEE ALSO
+
+SQL::Translator, GraphViz
+
=cut
projects / dbsrgits/SQL-Translator.git / blobdiff