package SQL::Translator::Schema::View;
# ----------------------------------------------------------------------
-# $Id: View.pm,v 1.1 2003-05-01 04:25:00 kycl4rk Exp $
+# $Id$
# ----------------------------------------------------------------------
-# Copyright (C) 2003 Ken Y. Clark <kclark@cpan.org>
+# 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
=head1 SYNOPSIS
use SQL::Translator::Schema::View;
- my $view = SQL::Translator::Schema::View->new(
- name => 'foo',
- sql => 'select * from foo',
+ my $view = SQL::Translator::Schema::View->new(
+ name => 'foo', # name, required
+ sql => 'select id, name from foo', # SQL for view
+ fields => 'id, name', # field names in view
);
=head1 DESCRIPTION
=cut
use strict;
-use Class::Base;
+use SQL::Translator::Utils 'parse_list_arg';
+
+use base 'SQL::Translator::Schema::Object';
-use base 'Class::Base';
use vars qw($VERSION $TABLE_COUNT $VIEW_COUNT);
-$VERSION = 1.00;
+$VERSION = sprintf "%d.%02d", q$Revision$ =~ /(\d+)\.(\d+)/;
# ----------------------------------------------------------------------
-sub init {
+
+__PACKAGE__->_attributes( qw/
+ name sql fields schema order
+/);
=pod
Object constructor.
- my $schema = SQL::Translator::Schema::View->new;
+ my $view = SQL::Translator::Schema::View->new;
+
+=cut
+
+# ----------------------------------------------------------------------
+sub fields {
+
+=pod
+
+=head2 fields
+
+Gets and set the fields the constraint is on. Accepts a string, list or
+arrayref; returns an array or array reference. Will unique the field
+names and keep them in order by the first occurrence of a field name.
+
+ $view->fields('id');
+ $view->fields('id', 'name');
+ $view->fields( 'id, name' );
+ $view->fields( [ 'id', 'name' ] );
+ $view->fields( qw[ id name ] );
+
+ my @fields = $view->fields;
+
+=cut
+
+ my $self = shift;
+ my $fields = parse_list_arg( @_ );
+
+ if ( @$fields ) {
+ my ( %unique, @unique );
+ for my $f ( @$fields ) {
+ next if $unique{ $f };
+ $unique{ $f } = 1;
+ push @unique, $f;
+ }
+
+ $self->{'fields'} = \@unique;
+ }
+
+ return wantarray ? @{ $self->{'fields'} || [] } : ($self->{'fields'} || '');
+}
+
+# ----------------------------------------------------------------------
+sub is_valid {
+
+=pod
+
+=head2 is_valid
+
+Determine whether the view is valid or not.
+
+ my $ok = $view->is_valid;
=cut
- my ( $self, $config ) = @_;
- $self->params( $config, qw[ name sql ] );
- return $self;
+ my $self = shift;
+
+ return $self->error('No name') unless $self->name;
+ return $self->error('No sql') unless $self->sql;
+
+ return 1;
}
# ----------------------------------------------------------------------
}
# ----------------------------------------------------------------------
+sub order {
+
+=pod
+
+=head2 order
+
+Get or set the view's order.
+
+ my $order = $view->order(3);
+
+=cut
+
+ my ( $self, $arg ) = @_;
+
+ if ( defined $arg && $arg =~ /^\d+$/ ) {
+ $self->{'order'} = $arg;
+ }
+
+ return $self->{'order'} || 0;
+}
+
+# ----------------------------------------------------------------------
sub sql {
=pod
}
# ----------------------------------------------------------------------
-sub is_valid {
+sub schema {
=pod
-=head2 is_valid
+=head2 schema
-Determine whether the view is valid or not.
+Get or set the view's schema object.
- my $ok = $view->is_valid;
+ $view->schema( $schema );
+ my $schema = $view->schema;
=cut
my $self = shift;
- return 1 if $self->name && $self->sql;
+ if ( my $arg = shift ) {
+ return $self->error('Not a schema object') unless
+ UNIVERSAL::isa( $arg, 'SQL::Translator::Schema' );
+ $self->{'schema'} = $arg;
+ }
+
+ return $self->{'schema'};
+}
+
+# ----------------------------------------------------------------------
+sub equals {
+
+=pod
+
+=head2 equals
+
+Determines if this view is the same as another
+
+ my $isIdentical = $view1->equals( $view2 );
+
+=cut
+
+ my $self = shift;
+ my $other = shift;
+ my $case_insensitive = shift;
+ my $ignore_sql = shift;
+
+ return 0 unless $self->SUPER::equals($other);
+ return 0 unless $case_insensitive ? uc($self->name) eq uc($other->name) : $self->name eq $other->name;
+ #return 0 unless $self->is_valid eq $other->is_valid;
+
+ unless ($ignore_sql) {
+ my $selfSql = $self->sql;
+ my $otherSql = $other->sql;
+ # Remove comments
+ $selfSql =~ s/--.*$//mg;
+ $otherSql =~ s/--.*$//mg;
+ # Collapse whitespace to space to avoid whitespace comparison issues
+ $selfSql =~ s/\s+/ /sg;
+ $otherSql =~ s/\s+/ /sg;
+ return 0 unless $selfSql eq $otherSql;
+ }
+
+ my $selfFields = join(":", $self->fields);
+ my $otherFields = join(":", $other->fields);
+ return 0 unless $case_insensitive ? uc($selfFields) eq uc($otherFields) : $selfFields eq $otherFields;
+ return 0 unless $self->_compare_objects(scalar $self->extra, scalar $other->extra);
+ return 1;
+}
+
+# ----------------------------------------------------------------------
+sub DESTROY {
+ my $self = shift;
+ undef $self->{'schema'}; # destroy cyclical reference
}
1;
=head1 AUTHOR
-Ken Y. Clark E<lt>kclark@cpan.orgE<gt>
+Ken Y. Clark E<lt>kclark@cpan.orgE<gt>.
=cut
projects / dbsrgits/SQL-Translator.git / blobdiff