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);
45 #foreach my $tableclass ($dbixschema->registered_classes)
46 foreach my $moniker ($dbixschema->sources)
48 #eval "use $tableclass";
49 #print("Can't load $tableclass"), next if($@);
50 my $source = $dbixschema->source($moniker);
52 my $table = $schema->add_table(
53 name => $source->name,
55 ) || die $schema->error;
57 foreach my $col ($source->columns)
59 # assuming column_info in dbix is the same as DBI (?)
60 # data_type is a number, column_type is text?
64 is_auto_increment => 0,
67 %{$source->column_info($col)}
69 if ($colinfo{is_nullable}) {
70 $colinfo{default} = '' unless exists $colinfo{default};
72 my $f = $table->add_field(%colinfo) || die $table->error;
74 $table->primary_key($source->primary_columns);
76 my @primary = $source->primary_columns;
77 my %unique_constraints = $source->unique_constraints;
78 foreach my $uniq (keys %unique_constraints) {
79 if (!equal_keys($unique_constraints{$uniq}, \@primary)) {
80 $table->add_constraint(
83 fields => $unique_constraints{$uniq}
88 my @rels = $source->relationships();
89 foreach my $rel (@rels)
91 my $rel_info = $source->relationship_info($rel);
93 my $rel_table = $source->related_source($rel)->name;
95 # Ignore any rel cond that isn't a straight hash
96 next unless ref $rel_info->{cond} eq 'HASH';
98 # Get the key information, mapping off the foreign/self markers
99 my @cond = keys(%{$rel_info->{cond}});
100 my @refkeys = map {/^\w+\.(\w+)$/} @cond;
101 my @keys = map {$rel_info->{cond}->{$_} =~ /^\w+\.(\w+)$/} @cond;
106 #Decide if this is a foreign key based on whether the self
107 #items are our primary columns.
109 # If the sets are different, then we assume it's a foreign key from
110 # us to another table.
111 if (!equal_keys(\@keys, \@primary)) {
112 $table->add_constraint(
113 type => 'foreign_key',
114 name => "fk_$keys[0]",
116 reference_fields => \@refkeys,
117 reference_table => $rel_table,
126 # -------------------------------------------------------------------
127 # equal_keys($key1, $key2)
129 # See if the set of keys in $key1 is equal to the set of keys in $key2
130 # -------------------------------------------------------------------
132 my ($key1, $key2) = @_;
134 # Make sure every key1 is in key2
136 foreach my $key (@$key1) {
138 foreach my $prim (@$key2) {
147 # Make sure every key2 is in key1
149 foreach my $prim (@$key2) {
151 foreach my $key (@$key1) {