-package # hide from PAUSE
+package # hide from PAUSE
SQL::Translator::Parser::DBIx::Class;
# AUTHOR: Jess Robinson
# We're working with DBIx::Class Schemas, not data streams.
# -------------------------------------------------------------------
sub parse {
- my ($tr, $data) = @_;
- my $args = $tr->parser_args;
- my $dbixschema = $args->{'DBIx::Schema'} || $data;
- $dbixschema ||= $args->{'package'};
+ my ($tr, $data) = @_;
+ my $args = $tr->parser_args;
+ my $dbixschema = $args->{'DBIx::Schema'} || $data;
+ $dbixschema ||= $args->{'package'};
+ my $limit_sources = $args->{'sources'};
die 'No DBIx::Schema' unless ($dbixschema);
if (!ref $dbixschema) {
# print Dumper($dbixschema->registered_classes);
#foreach my $tableclass ($dbixschema->registered_classes)
- foreach my $moniker ($dbixschema->sources)
+
+ my %seen_tables;
+
+ my @monikers = $dbixschema->sources;
+ if ($limit_sources) {
+ my $ref = ref $limit_sources || '';
+ die "'sources' parameter must be an array or hash ref" unless $ref eq 'ARRAY' || ref eq 'HASH';
+
+ # limit monikers to those specified in
+ my $sources;
+ if ($ref eq 'ARRAY') {
+ $sources->{$_} = 1 for (@$limit_sources);
+ } else {
+ $sources = $limit_sources;
+ }
+ @monikers = grep { $sources->{$_} } @monikers;
+ }
+
+
+ foreach my $moniker (@monikers)
{
#eval "use $tableclass";
#print("Can't load $tableclass"), next if($@);
my $source = $dbixschema->source($moniker);
+ next if $seen_tables{$source->name}++;
+
my $table = $schema->add_table(
name => $source->name,
type => 'TABLE',
}
$table->primary_key($source->primary_columns);
+ my @primary = $source->primary_columns;
+ my %unique_constraints = $source->unique_constraints;
+ foreach my $uniq (keys %unique_constraints) {
+ if (!$source->compare_relationship_keys($unique_constraints{$uniq}, \@primary)) {
+ $table->add_constraint(
+ type => 'unique',
+ name => "$uniq",
+ fields => $unique_constraints{$uniq}
+ );
+ }
+ }
+
my @rels = $source->relationships();
+
+ my %created_FK_rels;
+
foreach my $rel (@rels)
{
my $rel_info = $source->relationship_info($rel);
- next if(!exists $rel_info->{attrs}{accessor} ||
- $rel_info->{attrs}{accessor} eq 'multi');
- # Going by the accessor type isn't such a good idea (yes, I know
- # I suggested it). I think the best way to tell if something is a
- # foreign key constraint is to assume if it doesn't include our
- # primaries then it is (dumb but it'll do). Ignore any rel cond
- # that isn't a straight hash, but get both sets of keys in full
- # so you don't barf on multi-primaries. Oh, and a dog-simple
- # deploy method to chuck the results of this exercise at a db
- # for testing is
- # $schema->storage->dbh->do($_) for split(";\n", $sql);
- # -- mst (03:42 local time, please excuse any mistakes)
- my $rel_table = $source->related_source($rel)->name;
- my $cond = (keys (%{$rel_info->{cond}}))[0];
- my ($refkey) = $cond =~ /^\w+\.(\w+)$/;
- my ($key) = $rel_info->{cond}->{$cond} =~ /^\w+\.(\w+)$/;
- if($rel_table && $refkey)
- {
- $table->add_constraint(
- type => 'foreign_key',
- name => "fk_${key}",
- fields => $key,
- reference_fields => $refkey,
- reference_table => $rel_table,
- );
+
+ # Ignore any rel cond that isn't a straight hash
+ next unless ref $rel_info->{cond} eq 'HASH';
+
+ my $othertable = $source->related_source($rel);
+ my $rel_table = $othertable->name;
+
+ # Get the key information, mapping off the foreign/self markers
+ my @cond = keys(%{$rel_info->{cond}});
+ my @refkeys = map {/^\w+\.(\w+)$/} @cond;
+ my @keys = map {$rel_info->{cond}->{$_} =~ /^\w+\.(\w+)$/} @cond;
+
+ if($rel_table)
+ {
+
+ my $reverse_rels = $source->reverse_relationship_info($rel);
+ my ($otherrelname, $otherrelationship) = each %{$reverse_rels};
+
+ my $on_delete = '';
+ my $on_update = '';
+
+ if (defined $otherrelationship) {
+ $on_delete = $otherrelationship->{'attrs'}->{cascade_delete} ? 'CASCADE' : '';
+ $on_update = $otherrelationship->{'attrs'}->{cascade_copy} ? 'CASCADE' : '';
+ }
+
+ # Make sure we dont create the same foreign key constraint twice
+ my $key_test = join("\x00", @keys);
+
+ #Decide if this is a foreign key based on whether the self
+ #items are our primary columns.
+ $DB::single = 1 if $moniker eq 'Tests::MBTI::Result';
+
+ # If the sets are different, then we assume it's a foreign key from
+ # us to another table.
+ # OR: If is_foreign_key_constraint attr is explicity set (or set to false) on the relation
+ if ( ! exists $created_FK_rels{$rel_table}->{$key_test} &&
+ ( exists $rel_info->{attrs}{is_foreign_key_constraint} &&
+ $rel_info->{attrs}{is_foreign_key_constraint} ||
+ !$source->compare_relationship_keys(\@keys, \@primary)
+ )
+ )
+ {
+ $created_FK_rels{$rel_table}->{$key_test} = 1;
+ $table->add_constraint(
+ type => 'foreign_key',
+ name => "fk_$keys[0]",
+ fields => \@keys,
+ reference_fields => \@refkeys,
+ reference_table => $rel_table,
+ on_delete => $on_delete,
+ on_update => $on_update
+ );
+ }
}
}
}
-
-}
+ return 1;
+}
1;
+
projects / dbsrgits/DBIx-Class.git / blobdiff