1 package # hide from PAUSE
2 SQL::Translator::Parser::DBIx::Class;
4 # AUTHOR: Jess Robinson
6 # Some mistakes the fault of Matt S Trout
10 use vars qw($DEBUG $VERSION @EXPORT_OK);
11 $DEBUG = 0 unless defined $DEBUG;
12 $VERSION = sprintf "%d.%02d", q$Revision 1.0$ =~ /(\d+)\.(\d+)/;
16 use SQL::Translator::Utils qw(debug normalize_name);
18 use base qw(Exporter);
20 @EXPORT_OK = qw(parse);
22 # -------------------------------------------------------------------
25 # Note that $data, in the case of this parser, is not useful.
26 # We're working with DBIx::Class Schemas, not data streams.
27 # -------------------------------------------------------------------
30 my $args = $tr->parser_args;
31 my $dbixschema = $args->{'DBIx::Schema'} || $data;
32 $dbixschema ||= $args->{'package'};
34 die 'No DBIx::Schema' unless ($dbixschema);
35 if (!ref $dbixschema) {
36 eval "use $dbixschema;";
37 die "Can't load $dbixschema ($@)" if($@);
40 my $schema = $tr->schema;
43 # print Dumper($dbixschema->registered_classes);
47 my @sources = exists $args->{'source_names'} ? @{ $args->{'source_names'} } : $dbixschema->sources;
48 foreach my $moniker (@sources)
50 #eval "use $tableclass";
51 #print("Can't load $tableclass"), next if($@);
52 my $source = $dbixschema->source($moniker);
54 next if $seen_tables{$source->name}++;
56 my $table = $schema->add_table(
57 name => $source->name,
59 ) || die $schema->error;
61 foreach my $col ($source->columns)
63 # assuming column_info in dbix is the same as DBI (?)
64 # data_type is a number, column_type is text?
68 is_auto_increment => 0,
71 %{$source->column_info($col)}
73 if ($colinfo{is_nullable}) {
74 $colinfo{default} = '' unless exists $colinfo{default};
76 my $f = $table->add_field(%colinfo) || die $table->error;
78 $table->primary_key($source->primary_columns);
80 my @primary = $source->primary_columns;
81 my %unique_constraints = $source->unique_constraints;
82 foreach my $uniq (keys %unique_constraints) {
83 if (!$source->compare_relationship_keys($unique_constraints{$uniq}, \@primary)) {
84 $table->add_constraint(
87 fields => $unique_constraints{$uniq}
92 my @rels = $source->relationships();
93 foreach my $rel (@rels)
95 my $rel_info = $source->relationship_info($rel);
97 # Ignore any rel cond that isn't a straight hash
98 next unless ref $rel_info->{cond} eq 'HASH';
100 my $othertable = $source->related_source($rel);
101 my $rel_table = $othertable->name;
103 # Get the key information, mapping off the foreign/self markers
104 my @cond = keys(%{$rel_info->{cond}});
105 my @refkeys = map {/^\w+\.(\w+)$/} @cond;
106 my @keys = map {$rel_info->{cond}->{$_} =~ /^\w+\.(\w+)$/} @cond;
111 my $reverse_rels = $source->reverse_relationship_info($rel);
112 my ($otherrelname, $otherrelationship) = each %{$reverse_rels};
117 if (defined $otherrelationship) {
118 $on_delete = $otherrelationship->{'attrs'}->{cascade_delete} ? 'CASCADE' : '';
119 $on_update = $otherrelationship->{'attrs'}->{cascade_copy} ? 'CASCADE' : '';
122 #Decide if this is a foreign key based on whether the self
123 #items are our primary columns.
125 # If the sets are different, then we assume it's a foreign key from
126 # us to another table.
127 if (!$source->compare_relationship_keys(\@keys, \@primary)) {
128 $table->add_constraint(
129 type => 'foreign_key',
130 name => "fk_$keys[0]",
132 reference_fields => \@refkeys,
133 reference_table => $rel_table,
134 on_delete => $on_delete,
135 on_update => $on_update