package SQL::Translator::Producer::Diagram;
# -------------------------------------------------------------------
-# $Id: Diagram.pm,v 1.2 2003-04-24 19:40:52 kycl4rk Exp $
+# $Id: Diagram.pm,v 1.3 2003-06-09 04:40:50 kycl4rk Exp $
# -------------------------------------------------------------------
# Copyright (C) 2003 Ken Y. Clark <kclark@cpan.org>
#
use strict;
use GD;
use Data::Dumper;
+use SQL::Translator::Schema::Constants;
use SQL::Translator::Utils qw(debug);
use vars qw[ $VERSION $DEBUG ];
-$VERSION = sprintf "%d.%02d", q$Revision: 1.2 $ =~ /(\d+)\.(\d+)/;
+$VERSION = sprintf "%d.%02d", q$Revision: 1.3 $ =~ /(\d+)\.(\d+)/;
$DEBUG = 0 unless defined $DEBUG;
use constant VALID_FONT_SIZE => {
};
sub produce {
- my ($t, $data) = @_;
+ my $t = shift;
+ my $schema = $t->schema;
my $args = $t->producer_args;
local $DEBUG = $t->debug;
- debug("Data =\n", Dumper( $data ));
+ debug("Schema =\n", Dumper( $schema ));
debug("Producer args =\n", Dumper( $args ));
my $out_file = $args->{'out_file'} || '';
my $join_pk_only = $args->{'join_pk_only'};
my $natural_join = $args->{'natural_join'} || $join_pk_only;
my $skip_fields = $args->{'skip_fields'};
- my %skip = map { $_, 1 } split ( /,/, $skip_fields );
+ my %skip = map { s/^\s+|\s+$//g; $_,1 } split (/,/, $skip_fields);
+
+ $schema->make_natural_joins(
+ join_pk_only => $join_pk_only,
+ skip_fields => $args->{'skip_fields'},
+ ) if $natural_join;
die "Invalid image type '$image_type'"
unless VALID_IMAGE_TYPE ->{ $image_type };
$font_size eq 'small' ? gdTinyFont :
$font_size eq 'medium' ? gdSmallFont :
$font_size eq 'large' ? gdLargeFont : gdGiantFont;
- my $no_tables = scalar keys %$data;
+ my @tables = $schema->get_tables;
+ my $no_tables = scalar @tables;
$no_columns = 0 unless $no_columns =~ /^\d+$/;
$no_columns ||= sprintf( "%.0f", sqrt( $no_tables ) + .5 );
$no_columns ||= .5;
my @fk_registry; # for locations of fields for foreign keys
my %table_x; # for max x of each table
my $field_no; # counter to give distinct no. to each field
+ my %coords; # holds fields coordinates
my %legend;
- #
- # If necessary, pre-process fields to find foreign keys.
- #
- if ( $show_fk_only && $natural_join ) {
- my ( %common_keys, %pk );
- for my $table ( values %$data ) {
- for my $index (
- @{ $table->{'indices'} || [] },
- @{ $table->{'constraints'} || [] },
- ) {
- my @fields = @{ $index->{'fields'} || [] } or next;
- if ( $index->{'type'} eq 'primary_key' ) {
- $pk{ $_ } = 1 for @fields;
- }
- }
-
- for my $field ( values %{ $table->{'fields'} } ) {
- push @{ $common_keys{ $field->{'name'} } },
- $table->{'table_name'};
- }
- }
-
- for my $field ( keys %common_keys ) {
- my @tables = @{ $common_keys{ $field } };
- next unless scalar @tables > 1;
- for my $table ( @tables ) {
- next if $join_pk_only and !defined $pk{ $field };
- $data->{ $table }{'fields'}{ $field }{'is_fk'} = 1;
- }
- }
- }
- else {
- for my $table ( values %$data ) {
- for my $field ( values %{ $table->{'fields'} } ) {
- for my $constraint (
- grep { $_->{'type'} eq 'foreign_key' }
- @{ $field->{'constraints'} }
- ) {
- my $ref_table = $constraint->{'reference_table'} or next;
- my @ref_fields = @{$constraint->{'reference_fields'} || []};
-
- unless ( @ref_fields ) {
- for my $field (
- values %{ $data->{ $ref_table }{'fields'} }
- ) {
- for my $pk (
- grep { $_->{'type'} eq 'primary_key' }
- @{ $field->{'constraints'} }
- ) {
- push @ref_fields, @{ $pk->{'fields'} };
- }
- }
-
- $constraint->{'reference_fields'} = [ @ref_fields ];
- }
-
- for my $ref_field (
- @{ $constraint->{'reference_fields'} }
- ) {
- $data->{$ref_table}{'fields'}{$ref_field}{'is_fk'} = 1;
- }
- }
- }
- }
- }
-
-
- for my $table (
- map { $_->[1] }
- sort { $a->[0] <=> $b->[0] }
- map { [ $_->{'order'}, $_ ] }
- values %$data
- ) {
- my $table_name = $table->{'table_name'};
+ for my $table ( @tables ) {
+ my $table_name = $table->name;
my $top = $y;
push @shapes,
[ 'string', $font, $this_col_x, $y, $table_name, 'black' ];
debug("Processing table '$table_name'");
- my @fields =
- map { $_->[1] }
- sort { $a->[0] <=> $b->[0] }
- map { [ $_->{'order'}, $_ ] }
- values %{ $table->{'fields'} };
-
- debug("Fields = ", join(', ', map { $_->{'name'} } @fields));
-
- my ( %pk, %unique );
- for my $index (
- @{ $table->{'indices'} || [] },
- @{ $table->{'constraints'} || [] },
- ) {
- my @fields = @{ $index->{'fields'} || [] } or next;
- if ( $index->{'type'} eq 'primary_key' ) {
- $pk{ $_ } = 1 for @fields;
- }
- elsif ( $index->{'type'} eq 'unique' ) {
- $unique{ $_ } = 1 for @fields;
- }
- }
-
- debug("PK = ", join(', ', sort keys %pk)) if %pk;
- debug("Unique = ", join(', ', sort keys %unique)) if %unique;
+ my @fields = $table->get_fields;
+ debug("Fields = ", join(', ', map { $_->name } @fields));
my ( @fld_desc, $max_name );
for my $f ( @fields ) {
- my $name = $f->{'name'} or next;
- my $is_pk = $pk{ $name };
- my $is_unique = $unique{ $name };
+ my $name = $f->name or next;
+ my $is_pk = $f->is_primary_key;
#
# Decide if we should skip this field.
#
if ( $show_fk_only ) {
- if ( $natural_join ) {
- next unless $is_pk || $f->{'is_fk'};
- }
- else {
- next unless $is_pk || $f->{'is_fk'} ||
- grep { $_->{'type'} eq 'foreign_key' }
- @{ $f->{'constraints'} }
- ;
- }
+ next unless $is_pk || $f->is_foreign_key;
}
if ( $is_pk ) {
$name .= ' *';
$legend{'Primary key'} = '*';
}
- elsif ( $is_unique ) {
+ elsif ( $f->is_unique ) {
$name .= ' [U]';
$legend{'Unique constraint'} = '[U]';
}
- my $size = @{ $f->{'size'} || [] }
- ? '(' . join( ',', @{ $f->{'size'} } ) . ')'
- : '';
- my $desc = join( ' ', map { $_ || () } $f->{'data_type'}, $size );
+ my $desc = $f->data_type;
+ $desc .= '('.$f->size.')' if $f->size;
my $nlen = length $name;
$max_name = $nlen if $nlen > $max_name;
if ( $natural_join && !$skip{ $orig_name } ) {
push @{ $nj_registry{ $orig_name } }, $table_name;
}
- elsif ( @{ $constraints || [] } ) {
- for my $constraint ( @$constraints ) {
- next unless $constraint->{'type'} eq 'foreign_key';
- for my $fk_field (
- @{ $constraint->{'reference_fields'} || [] }
- ) {
- my $fk_table = $constraint->{'reference_table'};
- next unless defined $data->{ $fk_table };
- push @fk_registry, [
- [ $table_name, $orig_name ],
- [ $fk_table , $fk_field ],
- ];
- }
- }
- }
my $y_link = $y - $font->height/2;
- $table->{'fields'}{ $orig_name }{'coords'} = {
+ $coords{ $table_name }{ $orig_name }{'coords'} = {
left => [ $this_col_x - 6, $y_link ],
right => [ $length + 2 , $y_link ],
table => $table_name,
};
}
+ unless ( $natural_join ) {
+ for my $c ( $table->get_constraints ) {
+ next unless $c->type eq FOREIGN_KEY;
+ my $fk_table = $c->reference_table or next;
+
+ for my $field_name ( $c->fields ) {
+ for my $fk_field ( $c->reference_fields ) {
+ next unless defined $schema->get_table( $fk_table );
+ push @fk_registry, [
+ [ $table_name, $field_name ],
+ [ $fk_table , $fk_field ],
+ ];
+ }
+ }
+ }
+ }
+
$this_max_x += 5;
$table_x{ $table_name } = $this_max_x + 5;
push @shapes, [ 'line', $this_col_x - 5, $below_table_name,
for my $table_name ( @table_names ) {
push @positions,
- $data->{$table_name}{'fields'}{ $field_name }{'coords'};
+ $coords{ $table_name }{ $field_name }{'coords'};
}
push @position_bunches, [ @positions ];
else {
for my $pair ( @fk_registry ) {
push @position_bunches, [
- $data->{$pair->[0][0]}{'fields'}{ $pair->[0][1] }{'coords'},
- $data->{$pair->[1][0]}{'fields'}{ $pair->[1][1] }{'coords'},
+ $coords{$pair->[0][0]}{ $pair->[0][1] }{'coords'},
+ $coords{$pair->[1][0]}{ $pair->[1][1] }{'coords'},
];
}
}
projects / dbsrgits/SQL-Translator.git / commitdiff