1 package SQL::Translator::Parser::DBIx::Class;
3 # AUTHOR: Jess Robinson
5 # Some mistakes the fault of Matt S Trout
9 use vars qw($DEBUG $VERSION @EXPORT_OK);
10 $DEBUG = 0 unless defined $DEBUG;
11 $VERSION = sprintf "%d.%02d", q$Revision 1.0$ =~ /(\d+)\.(\d+)/;
15 use SQL::Translator::Utils qw(debug normalize_name);
17 use base qw(Exporter);
19 @EXPORT_OK = qw(parse);
21 # -------------------------------------------------------------------
24 # Note that $data, in the case of this parser, is unuseful.
25 # We're working with DBIx::Class Schemas, not data streams.
26 # -------------------------------------------------------------------
29 my $args = $tr->parser_args;
30 my $dbixschema = $args->{'DBIx::Schema'} || $data;
32 die 'No DBIx::Schema' unless ($dbixschema);
33 if (!ref $dbixschema) {
34 eval "use $dbixschema;";
35 die "Can't load $dbixschema ($@)" if($@);
38 my $schema = $tr->schema;
41 # print Dumper($dbixschema->registered_classes);
43 foreach my $tableclass ($dbixschema->registered_classes)
45 eval "use $tableclass";
46 print("Can't load $tableclass"), next if($@);
47 my $source = $tableclass->result_source_instance;
49 my $table = $schema->add_table(
50 name => $source->name,
52 ) || die $schema->error;
54 foreach my $col ($source->columns)
56 # assuming column_info in dbix is the same as DBI (?)
57 # data_type is a number, column_type is text?
62 is_auto_increment => 0,
65 %{$source->column_info($col)}
67 my $f = $table->add_field(%colinfo) || die $table->error;
69 $table->primary_key($source->primary_columns);
72 my @rels = $source->relationships();
73 foreach my $rel (@rels)
75 my $rel_info = $source->relationship_info($rel);
76 print "Accessor: $rel_info->{attrs}{accessor}\n";
77 next if(!exists $rel_info->{attrs}{accessor} ||
78 $rel_info->{attrs}{accessor} eq 'multi');
79 # Going by the accessor type isn't such a good idea (yes, I know
80 # I suggested it). I think the best way to tell if something's a
81 # foreign key constraint is to assume if it doesn't include our
82 # primaries then it is (dumb but it'll do). Ignore any rel cond
83 # that isn't a straight hash, but get both sets of keys in full
84 # so you don't barf on multi-primaries. Oh, and a dog-simple
85 # deploy method to chuck the results of this exercise at a db
87 # $schema->storage->dbh->do($_) for split(";\n", $sql);
88 # -- mst (03:42 local time, please excuse any mistakes)
89 my $rel_table = $rel_info->{class}->table();
90 my $cond = (keys (%{$rel_info->{cond}}))[0];
91 my ($refkey) = $cond =~ /^\w+\.(\w+)$/;
92 if($rel_table && $refkey)
94 $table->add_constraint(
95 type => 'foreign_key',
96 name => "fk_${rel}_id",
98 reference_fields => $refkey,
99 reference_table => $rel_table,