package SQL::Translator::Schema::Constraint;
-# ----------------------------------------------------------------------
-# $Id: Constraint.pm,v 1.20 2007-02-27 20:45:30 duality72 Exp $
-# ----------------------------------------------------------------------
-# Copyright (C) 2002-4 SQLFairy Authors
-#
-# This program is free software; you can redistribute it and/or
-# modify it under the terms of the GNU General Public License as
-# published by the Free Software Foundation; version 2.
-#
-# This program is distributed in the hope that it will be useful, but
-# WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
-# General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with this program; if not, write to the Free Software
-# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
-# 02111-1307 USA
-# -------------------------------------------------------------------
-
=pod
=head1 NAME
=cut
use strict;
+use warnings;
use SQL::Translator::Schema::Constants;
use SQL::Translator::Utils 'parse_list_arg';
use base 'SQL::Translator::Schema::Object';
-use vars qw($VERSION $TABLE_COUNT $VIEW_COUNT);
+ our ( $TABLE_COUNT, $VIEW_COUNT );
-$VERSION = sprintf "%d.%02d", q$Revision: 1.20 $ =~ /(\d+)\.(\d+)/;
+our $VERSION = '1.59';
my %VALID_CONSTRAINT_TYPE = (
PRIMARY_KEY, 1,
NOT_NULL, 1,
);
-# ----------------------------------------------------------------------
-
__PACKAGE__->_attributes( qw/
- table name type fields reference_fields reference_table
+ table name type fields reference_fields reference_table
match_type on_delete on_update expression deferrable
/);
# Override to remove empty arrays from args.
# t/14postgres-parser breaks without this.
sub init {
-
+
=pod
=head2 new
$self->SUPER::init(@_);
}
-# ----------------------------------------------------------------------
sub deferrable {
=pod
return defined $self->{'deferrable'} ? $self->{'deferrable'} : 1;
}
-# ----------------------------------------------------------------------
sub expression {
=pod
=cut
my $self = shift;
-
+
if ( my $arg = shift ) {
# check arg here?
$self->{'expression'} = $arg;
return $self->{'expression'} || '';
}
-# ----------------------------------------------------------------------
sub is_valid {
=pod
return $self->error('Only one field allowed for foreign key')
if scalar @fields > 1;
- my $ref_table_name = $self->reference_table or
+ my $ref_table_name = $self->reference_table or
return $self->error('No reference table');
my $ref_table = $schema->get_table( $ref_table_name ) or
for my $ref_field ( @ref_fields ) {
next if $ref_table->get_field( $ref_field );
return $self->error(
- "Constraint from field(s) ",
+ "Constraint from field(s) ",
join(', ', map {qq['$table_name.$_']} @fields),
" to non-existent field '$ref_table_name.$ref_field'"
);
}
}
elsif ( $type eq CHECK_C ) {
- return $self->error('No expression for CHECK') unless
+ return $self->error('No expression for CHECK') unless
$self->expression;
}
return 1;
}
-# ----------------------------------------------------------------------
sub fields {
=pod
}
}
-# ----------------------------------------------------------------------
sub field_names {
=head2 field_names
Read-only method to return a list or array ref of the field names. Returns undef
-or an empty list if the constraint has no fields set. Usefull if you want to
+or an empty list if the constraint has no fields set. Useful if you want to
avoid the overload magic of the Field objects returned by the fields method.
my @names = $constraint->field_names;
return wantarray ? @{ $self->{'fields'} || [] } : ($self->{'fields'} || '');
}
-# ----------------------------------------------------------------------
sub match_type {
=pod
=head2 match_type
Get or set the constraint's match_type. Only valid values are "full"
-or "partial."
+"partial" and "simple"
my $match_type = $constraint->match_type('FULL');
=cut
- my $self = shift;
-
- if ( my $arg = lc shift ) {
+ my ( $self, $arg ) = @_;
+
+ if ( $arg ) {
+ $arg = lc $arg;
return $self->error("Invalid match type: $arg")
- unless $arg eq 'full' || $arg eq 'partial';
+ unless $arg eq 'full' || $arg eq 'partial' || $arg eq 'simple';
$self->{'match_type'} = $arg;
}
return $self->{'match_type'} || '';
}
-# ----------------------------------------------------------------------
sub name {
=pod
return $self->{'name'} || '';
}
-# ----------------------------------------------------------------------
sub options {
=pod
=head2 options
-Gets or adds to the constraints's options (e.g., "INITIALLY IMMEDIATE").
+Gets or adds to the constraints's options (e.g., "INITIALLY IMMEDIATE").
Returns an array or array reference.
$constraint->options('NORELY');
}
}
-
-# ----------------------------------------------------------------------
sub on_delete {
=pod
=cut
my $self = shift;
-
+
if ( my $arg = shift ) {
# validate $arg?
$self->{'on_delete'} = $arg;
return $self->{'on_delete'} || '';
}
-# ----------------------------------------------------------------------
sub on_update {
=pod
=cut
my $self = shift;
-
+
if ( my $arg = shift ) {
# validate $arg?
$self->{'on_update'} = $arg;
return $self->{'on_update'} || '';
}
-# ----------------------------------------------------------------------
sub reference_fields {
=pod
unless ( ref $self->{'reference_fields'} ) {
my $table = $self->table or return $self->error('No table');
my $schema = $table->schema or return $self->error('No schema');
- if ( my $ref_table_name = $self->reference_table ) {
+ if ( my $ref_table_name = $self->reference_table ) {
my $ref_table = $schema->get_table( $ref_table_name ) or
return $self->error("Can't find table '$ref_table_name'");
- if ( my $constraint = $ref_table->primary_key ) {
+ if ( my $constraint = $ref_table->primary_key ) {
$self->{'reference_fields'} = [ $constraint->fields ];
}
else {
}
if ( ref $self->{'reference_fields'} ) {
- return wantarray
- ? @{ $self->{'reference_fields'} }
+ return wantarray
+ ? @{ $self->{'reference_fields'} }
: $self->{'reference_fields'};
}
else {
}
}
-# ----------------------------------------------------------------------
sub reference_table {
=pod
return $self->{'reference_table'} || '';
}
-# ----------------------------------------------------------------------
sub table {
=pod
return $self->{'table'};
}
-# ----------------------------------------------------------------------
sub type {
=pod
=cut
- my $self = shift;
+ my ( $self, $type ) = @_;
- if ( my $type = uc shift ) {
+ if ( $type ) {
+ $type = uc $type;
$type =~ s/_/ /g;
- return $self->error("Invalid constraint type: $type")
+ return $self->error("Invalid constraint type: $type")
unless $VALID_CONSTRAINT_TYPE{ $type };
$self->{'type'} = $type;
}
return $self->{'type'} || '';
}
-# ----------------------------------------------------------------------
sub equals {
=pod
my $self = shift;
my $other = shift;
my $case_insensitive = shift;
-
+ my $ignore_constraint_names = shift;
+
return 0 unless $self->SUPER::equals($other);
return 0 unless $self->type eq $other->type;
- return 0 unless $case_insensitive ? uc($self->name) eq uc($other->name) : $self->name eq $other->name;
+ unless ($ignore_constraint_names) {
+ return 0 unless $case_insensitive ? uc($self->name) eq uc($other->name) : $self->name eq $other->name;
+ }
return 0 unless $self->deferrable eq $other->deferrable;
#return 0 unless $self->is_valid eq $other->is_valid;
return 0 unless $case_insensitive ? uc($self->table->name) eq uc($other->table->name)
- : $self->table->name eq $other->table->name;
+ : $self->table->name eq $other->table->name;
return 0 unless $self->expression eq $other->expression;
-
+
# Check fields, regardless of order
- my %otherFields = (); # create a hash of the other fields
+ my %otherFields = (); # create a hash of the other fields
foreach my $otherField ($other->fields) {
- $otherField = uc($otherField) if $case_insensitive;
- $otherFields{$otherField} = 1;
+ $otherField = uc($otherField) if $case_insensitive;
+ $otherFields{$otherField} = 1;
}
foreach my $selfField ($self->fields) { # check for self fields in hash
- $selfField = uc($selfField) if $case_insensitive;
- return 0 unless $otherFields{$selfField};
- delete $otherFields{$selfField};
+ $selfField = uc($selfField) if $case_insensitive;
+ return 0 unless $otherFields{$selfField};
+ delete $otherFields{$selfField};
}
# Check all other fields were accounted for
return 0 unless keys %otherFields == 0;
# Check reference fields, regardless of order
- my %otherRefFields = (); # create a hash of the other reference fields
+ my %otherRefFields = (); # create a hash of the other reference fields
foreach my $otherRefField ($other->reference_fields) {
- $otherRefField = uc($otherRefField) if $case_insensitive;
- $otherRefFields{$otherRefField} = 1;
+ $otherRefField = uc($otherRefField) if $case_insensitive;
+ $otherRefFields{$otherRefField} = 1;
}
foreach my $selfRefField ($self->reference_fields) { # check for self reference fields in hash
- $selfRefField = uc($selfRefField) if $case_insensitive;
- return 0 unless $otherRefFields{$selfRefField};
- delete $otherRefFields{$selfRefField};
+ $selfRefField = uc($selfRefField) if $case_insensitive;
+ return 0 unless $otherRefFields{$selfRefField};
+ delete $otherRefFields{$selfRefField};
}
# Check all other reference fields were accounted for
return 0 unless keys %otherRefFields == 0;
return 1;
}
-# ----------------------------------------------------------------------
sub DESTROY {
my $self = shift;
undef $self->{'table'}; # destroy cyclical reference
1;
-# ----------------------------------------------------------------------
-
=pod
=head1 AUTHOR
-Ken Y. Clark E<lt>kclark@cpan.orgE<gt>.
+Ken Youens-Clark E<lt>kclark@cpan.orgE<gt>.
=cut
projects / dbsrgits/SQL-Translator.git / blobdiff