use warnings

[dbsrgits/SQL-Translator.git] / lib / SQL / Translator / Schema / View.pm

diff --git a/lib/SQL/Translator/Schema/View.pm b/lib/SQL/Translator/Schema/View.pm
index 8a6c4ab..ff0b169 100644 (file)
--- a/lib/SQL/Translator/Schema/View.pm
+++ b/lib/SQL/Translator/Schema/View.pm
@@ -1,25 +1,5 @@
 package SQL::Translator::Schema::View;
 
-# ----------------------------------------------------------------------
-# $Id: View.pm,v 1.3 2003-06-18 23:14:00 kycl4rk Exp $
-# ----------------------------------------------------------------------
-# Copyright (C) 2003 Ken Y. Clark <kclark@cpan.org>
-#
-# 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
@@ -29,9 +9,10 @@ SQL::Translator::Schema::View - SQL::Translator view object
 =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
@@ -43,16 +24,18 @@ C<SQL::Translator::Schema::View> is the view object.
 =cut
 
 use strict;
-use Class::Base;
+use warnings;
 use SQL::Translator::Utils 'parse_list_arg';
 
-use base 'Class::Base';
+use base 'SQL::Translator::Schema::Object';
+
 use vars qw($VERSION $TABLE_COUNT $VIEW_COUNT);
 
-$VERSION = (qw$Revision: 1.3 $)[-1];
+$VERSION = '1.59';
 
-# ----------------------------------------------------------------------
-sub init {
+__PACKAGE__->_attributes( qw/
+    name sql fields schema order
+/);
 
 =pod
 
@@ -60,21 +43,10 @@ sub init {
 
 Object constructor.
 
-  my $schema = SQL::Translator::Schema::View->new;
+  my $view = SQL::Translator::Schema::View->new;
 
 =cut
 
-    my ( $self, $config ) = @_;
-
-    for my $arg ( qw[ name sql fields ] ) {
-        next unless $config->{ $arg };
-        $self->$arg( $config->{ $arg } ) or return;
-    }
-
-    return $self;
-}
-
-# ----------------------------------------------------------------------
 sub fields {
 
 =pod
@@ -109,10 +81,9 @@ names and keep them in order by the first occurrence of a field name.
         $self->{'fields'} = \@unique;
     }
 
-    return wantarray ? @{ $self->{'fields'} || [] } : $self->{'fields'};
+    return wantarray ? @{ $self->{'fields'} || [] } : ($self->{'fields'} || '');
 }
 
-# ----------------------------------------------------------------------
 sub is_valid {
 
 =pod
@@ -133,7 +104,6 @@ Determine whether the view is valid or not.
     return 1;
 }
 
-# ----------------------------------------------------------------------
 sub name {
 
 =pod
@@ -151,7 +121,6 @@ Get or set the view's name.
     return $self->{'name'} || '';
 }
 
-# ----------------------------------------------------------------------
 sub order {
 
 =pod
@@ -173,7 +142,6 @@ Get or set the view's order.
     return $self->{'order'} || 0;
 }
 
-# ----------------------------------------------------------------------
 sub sql {
 
 =pod
@@ -191,20 +159,80 @@ Get or set the view's SQL.
     return $self->{'sql'} || '';
 }
 
-# ----------------------------------------------------------------------
+sub schema {
+
+=pod
+
+=head2 schema
+
+Get or set the view's schema object.
+
+  $view->schema( $schema );
+  my $schema = $view->schema;
+
+=cut
+
+    my $self = shift;
+    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->{'table'}; # destroy cyclical reference
+    undef $self->{'schema'}; # 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