use strict;
use warnings;
-use vars qw($DEBUG $VERSION @EXPORT_OK);
+use vars qw($DEBUG @EXPORT_OK);
$DEBUG = 0 unless defined $DEBUG;
-$VERSION = sprintf "%d.%02d", q$Revision 1.0$ =~ /(\d+)\.(\d+)/;
use Exporter;
use Data::Dumper;
+use Digest::SHA1 qw( sha1_hex );
use SQL::Translator::Utils qw(debug normalize_name);
use base qw(Exporter);
sub parse {
my ($tr, $data) = @_;
my $args = $tr->parser_args;
- my $dbixschema = $args->{'DBIx::Schema'} || $data;
- $dbixschema ||= $args->{'package'};
+ my $dbicschema = $args->{'DBIx::Class::Schema'} || $args->{"DBIx::Schema"} ||$data;
+ $dbicschema ||= $args->{'package'};
my $limit_sources = $args->{'sources'};
- die 'No DBIx::Schema' unless ($dbixschema);
- if (!ref $dbixschema) {
- eval "use $dbixschema;";
- die "Can't load $dbixschema ($@)" if($@);
+ die 'No DBIx::Class::Schema' unless ($dbicschema);
+ if (!ref $dbicschema) {
+ eval "use $dbicschema;";
+ die "Can't load $dbicschema ($@)" if($@);
}
my $schema = $tr->schema;
my $table_no = 0;
-# print Dumper($dbixschema->registered_classes);
-
- #foreach my $tableclass ($dbixschema->registered_classes)
+ $schema->name( ref($dbicschema) . " v" . ($dbicschema->VERSION || '1.x'))
+ unless ($schema->name);
my %seen_tables;
- my @monikers = $dbixschema->sources;
+ my @monikers = sort $dbicschema->sources;
if ($limit_sources) {
my $ref = ref $limit_sources || '';
die "'sources' parameter must be an array or hash ref" unless $ref eq 'ARRAY' || ref eq 'HASH';
foreach my $moniker (sort @monikers)
{
- my $source = $dbixschema->source($moniker);
+ my $source = $dbicschema->source($moniker);
+ # Its possible to have multiple DBIC source using same table
next if $seen_tables{$source->name}++;
my $table = $schema->add_table(
);
}
my %unique_constraints = $source->unique_constraints;
- foreach my $uniq (keys %unique_constraints) {
+ foreach my $uniq (sort keys %unique_constraints) {
if (!$source->compare_relationship_keys($unique_constraints{$uniq}, \@primary)) {
$table->add_constraint(
type => 'unique',
- name => "$uniq",
+ name => _create_unique_symbol($uniq),
fields => $unique_constraints{$uniq}
);
my $index = $table->add_index(
- name => $unique_constraints{$uniq}->[0],
+ name => _create_unique_symbol(join('_', @{$unique_constraints{$uniq}})),
fields => $unique_constraints{$uniq},
type => 'NORMAL',
);
$on_update = $otherrelationship->{'attrs'}->{cascade_copy} ? 'CASCADE' : '';
}
+ my $is_deferrable = $rel_info->{attrs}{is_deferrable};
+
# Make sure we dont create the same foreign key constraint twice
my $key_test = join("\x00", @keys);
# 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;
- if (scalar(@keys)) {
- $table->add_constraint(
+ next if ( exists $created_FK_rels{$rel_table}->{$key_test} );
+ if ( exists $rel_info->{attrs}{is_foreign_key_constraint}) {
+ # not is this attr set to 0 but definitely if set to 1
+ next unless ($rel_info->{attrs}{is_foreign_key_constraint});
+ } else {
+ # not if might have
+ # next if ($rel_info->{attrs}{accessor} eq 'single' && exists $rel_info->{attrs}{join_type} && uc($rel_info->{attrs}{join_type}) eq 'LEFT');
+ # not sure about this one
+ next if $source->compare_relationship_keys(\@keys, \@primary);
+ }
+
+ $created_FK_rels{$rel_table}->{$key_test} = 1;
+ if (scalar(@keys)) {
+ $table->add_constraint(
type => 'foreign_key',
- name => $table->name . "_fk_$keys[0]",
+ name => _create_unique_symbol($table->name
+ . '_fk_'
+ . join('_', @keys)),
fields => \@keys,
reference_fields => \@refkeys,
reference_table => $rel_table,
on_delete => $on_delete,
- on_update => $on_update
- );
+ on_update => $on_update,
+ (defined $is_deferrable ? ( deferrable => $is_deferrable ) : ()),
+ );
- my $index = $table->add_index(
- name => $keys[0],
+ my $index = $table->add_index(
+ name => _create_unique_symbol(join('_', @keys)),
fields => \@keys,
type => 'NORMAL',
- );
- }
-
+ );
}
}
}
}
}
- if ($dbixschema->can('sqlt_deploy_hook')) {
- $dbixschema->sqlt_deploy_hook($schema);
+ if ($dbicschema->can('sqlt_deploy_hook')) {
+ $dbicschema->sqlt_deploy_hook($schema);
}
return 1;
}
-1;
+# TODO - is there a reasonable way to pass configuration?
+# Default of 64 comes from mysql's limit.
+our $MAX_SYMBOL_LENGTH ||= 64;
+our $COLLISION_TAG_LENGTH ||= 8;
+# -------------------------------------------------------------------
+# $resolved_name = _create_unique_symbol($desired_name)
+#
+# If desired_name is really long, it will be truncated in a way that
+# has a high probability of leaving it unique.
+# -------------------------------------------------------------------
+sub _create_unique_symbol {
+ my $desired_name = shift;
+ return $desired_name if length $desired_name <= $MAX_SYMBOL_LENGTH;
+
+ my $truncated_name = substr $desired_name, 0, $MAX_SYMBOL_LENGTH - $COLLISION_TAG_LENGTH - 1;
+
+ # Hex isn't the most space-efficient, but it skirts around allowed
+ # charset issues
+ my $digest = sha1_hex($desired_name);
+ my $collision_tag = substr $digest, 0, $COLLISION_TAG_LENGTH;
+
+ return $truncated_name
+ . '_'
+ . $collision_tag;
+}
+
+1;
projects / dbsrgits/DBIx-Class.git / blobdiff