package SQL::Translator::Producer::GraphViz;
# -------------------------------------------------------------------
-# $Id: GraphViz.pm,v 1.14 2007-09-26 13:20:09 schiffbruechige Exp $
+# $Id$
# -------------------------------------------------------------------
# Copyright (C) 2002-4 SQLFairy Authors
#
natural_join above) of SQL::Translator::Schema, if either
the natural_join or join_pk_only options has a true value
+=item * show_indexes
+
+if set to a true value, each record will also show the indexes
+set on each table. it describes the index types along with
+which columns are included in the index. this option requires
+that show_fields is a true value as well
+
+=item * show_index_name
+
+if show_indexes is set to a true value, then the value of this
+parameter determines whether or not to print names of indexes.
+if show_index_name is false, then a list of indexed columns
+will appear below the field list. otherwise, it will be a list
+prefixed with the name of each index. it defaults to true.
+
+=item * friendly_ints
+
+if set to a true value, each integer type field will be displayed
+as a smallint, integer or bigint depending on the field's
+associated size parameter. this only applies for the 'integer'
+type (and not the lowercase 'int' type, which is assumed to be a
+32-bit integer).
+
+=item * friendly_ints_extended
+
+if set to a true value, the friendly ints displayed will take into
+account the non-standard types, 'tinyint' and 'mediumint' (which,
+as far as I am aware, is only implemented in MySQL)
+
=back
=cut
use SQL::Translator::Utils qw(debug);
use vars qw[ $VERSION $DEBUG ];
-$VERSION = sprintf "%d.%02d", q$Revision: 1.14 $ =~ /(\d+)\.(\d+)/;
+$VERSION = sprintf "%d.%02d", q$Revision$ =~ /(\d+)\.(\d+)/;
$DEBUG = 0 unless defined $DEBUG;
use constant VALID_LAYOUT => {
my $show_fk_only = $args->{'show_fk_only'};
my $show_datatypes = $args->{'show_datatypes'};
my $show_sizes = $args->{'show_sizes'};
+ my $show_indexes = $args->{'show_indexes'};
+ my $show_index_name = $args->{'show_index_name'} || 1;
+ my $friendly_ints = $args->{'friendly_ints'};
+ my $friendly_ints_ex = $args->{'friendly_ints_extended'};
my $show_constraints = $args->{'show_constraints'};
my $join_pk_only = $args->{'join_pk_only'};
my $skip_fields = $args->{'skip_fields'} || '';
@fields = grep { $_->is_foreign_key } @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;
+ my $label = '{' . $table_name;
+ if ($show_fields) {
+ my $field_str = '';
+ foreach my $field (@fields) {
+ $field_str .= '-\ ' . $field->name;
+ if ($show_datatypes) {
+ my $dt = lc($field->data_type);
+
+ # For the integer type, transform into different types based on
+ # requested size, if a size is given.
+ if ($friendly_ints && $dt eq 'integer' && $field->size) {
+ # Automatically translate to int2, int4, int8
+ # Type (Bits) Max. Signed/Unsigned Length
+ # tinyint* (8) 128 3
+ # 255 3
+ # smallint (16) 32767 5
+ # 65535 5
+ # mediumint* (24) 8388607 7
+ # 16777215 8
+ # int (32) 2147483647 10
+ # 4294967295 10
+ # bigint (64) 9223372036854775807 19
+ # 18446744073709551615 20
+ #
+ # * tinyint and mediumint are nonstandard extensions which are
+ # only available under MySQL (to my knowledge)
+ my $size = $field->size;
+ if ($size > 10) {
+ $dt = 'bigint';
+ }
+ elsif ($size > 5) {
+ $dt = 'integer';
+ if ($friendly_ints_ex && $size <= 8) {
+ $dt = 'mediumint';
+ }
+ }
+ else {
+ $dt = 'smallint';
+ if ($friendly_ints_ex && $size <= 3) {
+ $dt = 'tinyint';
+ }
+ }
+ }
+
+ $field_str .= '\ ' . $dt;
+ if ($show_sizes && $field->size && ($dt =~ /^(var)?char2?$/ || $dt eq 'numeric' || $dt eq 'decimal')) {
+ $field_str .= '(' . $field->size . ')';
+ }
+ }
+
+ if ($show_constraints) {
+ my @constraints;
+ push(@constraints, 'PK') if $field->is_primary_key;
+ push(@constraints, 'FK') if $field->is_foreign_key;
+ push(@constraints, 'U') if $field->is_unique;
+ if (scalar(@constraints)) {
+ $field_str .= '\ [' . join(',\ ', @constraints) . ']';
+ }
+ }
+ $field_str .= '\l';
+ }
+ $label .= '|' . $field_str;
+ }
+
+ if ($show_indexes) {
+ my $index_str = '';
+ foreach my $index ($table->get_indices) {
+ next unless $index->is_valid;
+
+ $index_str .= '*\ ';
+ if ($show_index_name) {
+ $index_str .= $index->name . ': ';
+ }
+ $index_str .= join(', ', $index->fields);
+ if ($index->type eq 'UNIQUE') {
+ $index_str .= '\ [U]';
+ }
+ $index_str .= '\l';
+ }
+ # Only add the last box if index_str is non-null
+ if (length $index_str) {
+ $label .= '|' . $index_str;
+ }
+ }
+ $label .= '}';
# $gv->add_node( $table_name, label => $label );
- $gv->add_node( $table_name, label => $label, ($node_shape eq 'record' ? ( shape => $node_shape ) : ()) );
+# $gv->add_node( $table_name, label => $label, ($node_shape eq 'record' ? ( shape => $node_shape ) : ()) );
+ $gv->add_node( $table_name, label => $label, shape => $node_shape );
debug("Processing table '$table_name'");
debug("Fields = ", join(', ', map { $_->name } @fields));
for my $i ( 0 .. $#tables ) {
my $table1 = $tables[ $i ];
for my $j ( 0 .. $#tables ) {
+ next if $i == $j;
my $table2 = $tables[ $j ];
- next if $table1 eq $table2;
next if $done{ $table1 }{ $table2 };
$gv->add_edge( $table2, $table1 );
$done{ $table1 }{ $table2 } = 1;
Ken Y. Clark E<lt>kclark@cpan.orgE<gt>
+=head2 CONTRIBUTORS
+
+Jonathan Yu E<lt>frequency@cpan.orgE<gt>
+
=head1 SEE ALSO
SQL::Translator, GraphViz
projects / dbsrgits/SQL-Translator.git / blobdiff