From: Nigel Metheringham <nigelm@cpan.org>
Date: Thu, 6 Apr 2006 14:20:32 +0000 (+0000)
Subject: Applied mst fixes for delete on resultsetin [839] to update.  Factored out common... 
X-Git-Url: http://git.shadowcat.co.uk/gitweb/gitweb.cgi?a=commitdiff_plain;h=0f57d214e83ec8b31825c924f996a6e50f73499e;p=dbsrgits%2FDBIx-Class-Historic.git

Applied mst fixes for delete on resultsetin [839] to update.  Factored out common code
---

diff --git a/Changes b/Changes
index 7f51a67..bbf21f9 100644
--- a/Changes
+++ b/Changes
@@ -2,6 +2,7 @@ Revision history for DBIx::Class
 
 0.06001
         - Added fix for quoting with single table
+        - Added fix for update on resultset
 
 0.06000
         - Lots of documentation improvements
diff --git a/lib/DBIx/Class/ResultSet.pm b/lib/DBIx/Class/ResultSet.pm
index ba310b0..08e81b5 100644
--- a/lib/DBIx/Class/ResultSet.pm
+++ b/lib/DBIx/Class/ResultSet.pm
@@ -783,6 +783,59 @@ sub first {
   return $_[0]->reset->next;
 }
 
+# _cond_for_update_delete
+#
+# update/delete require the condition to be modified to handle
+# the differing SQL syntax available.  This transforms the $self->{cond}
+# appropriately, returning the new condition
+
+sub _cond_for_update_delete {
+  my ($self) = @_;
+  my $cond = {};
+
+  if (!ref($self->{cond})) {
+    # No-op. No condition, we're update/deleting everything
+  }
+  elsif (ref $self->{cond} eq 'ARRAY') {
+    $cond = [
+      map {
+        my %hash;
+        foreach my $key (keys %{$_}) {
+          $key =~ /([^.]+)$/;
+          $hash{$1} = $_->{$key};
+        }
+        \%hash;
+        } @{$self->{cond}}
+    ];
+  }
+  elsif (ref $self->{cond} eq 'HASH') {
+    if ((keys %{$self->{cond}})[0] eq '-and') {
+      $cond->{-and} = [
+        map {
+          my %hash;
+          foreach my $key (keys %{$_}) {
+            $key =~ /([^.]+)$/;
+            $hash{$1} = $_->{$key};
+          }
+          \%hash;
+          } @{$self->{cond}{-and}}
+      ];
+    }
+    else {
+      foreach my $key (keys %{$self->{cond}}) {
+        $key =~ /([^.]+)$/;
+        $cond->{$1} = $self->{cond}{$key};
+      }
+    }
+  }
+  else {
+    $self->throw_exception(
+               "Can't update/delete on resultset with condition unless hash or array");
+  }
+  return $cond;
+}
+
+
 =head2 update
 
 =over 4
@@ -803,8 +856,11 @@ sub update {
   my ($self, $values) = @_;
   $self->throw_exception("Values for update must be a hash")
     unless ref $values eq 'HASH';
+
+  my $cond = $self->_cond_for_update_delete;
+
   return $self->result_source->storage->update(
-    $self->result_source->from, $values, $self->{cond}
+    $self->result_source->from, $values, $cond
   );
 }
 
@@ -853,43 +909,9 @@ sub delete {
   my ($self) = @_;
   my $del = {};
 
-  if (!ref($self->{cond})) {
-
-    # No-op. No condition, we're deleting everything
-
-  } elsif (ref $self->{cond} eq 'ARRAY') {
-
-    $del = [ map { my %hash;
-      foreach my $key (keys %{$_}) {
-        $key =~ /([^.]+)$/;
-        $hash{$1} = $_->{$key};
-      }; \%hash; } @{$self->{cond}} ];
-
-  } elsif (ref $self->{cond} eq 'HASH') {
-
-    if ((keys %{$self->{cond}})[0] eq '-and') {
-
-      $del->{-and} = [ map { my %hash;
-        foreach my $key (keys %{$_}) {
-          $key =~ /([^.]+)$/;
-          $hash{$1} = $_->{$key};
-        }; \%hash; } @{$self->{cond}{-and}} ];
-
-    } else {
-
-      foreach my $key (keys %{$self->{cond}}) {
-        $key =~ /([^.]+)$/;
-        $del->{$1} = $self->{cond}{$key};
-      }
-    }
-
-  } else {
-    $self->throw_exception(
-      "Can't delete on resultset with condition unless hash or array"
-    );
-  }
+  my $cond = $self->_cond_for_update_delete;
 
-  $self->result_source->storage->delete($self->result_source->from, $del);
+  $self->result_source->storage->delete($self->result_source->from, $cond);
   return 1;
 }
 
diff --git a/t/run/06relationship.tl b/t/run/06relationship.tl
index 9d2669e..04d1e36 100644
--- a/t/run/06relationship.tl
+++ b/t/run/06relationship.tl
@@ -3,7 +3,7 @@ my $schema = shift;
 
 use strict;
 use warnings;  
-plan tests => 21;
+plan tests => 25;
 
 # has_a test
 my $cd = $schema->resultset("CD")->find(4);
@@ -137,6 +137,15 @@ my $trackset = $artist->cds->search_related('tracks');
 # LEFT join means we also see the trackless additional album...
 cmp_ok($trackset->count, '==', 11, "Correct number of tracks for artist");
 
+# now see about updating eveything that belongs to artist 2 to artist 3
+$artist = $schema->resultset("Artist")->find(2);
+my $nartist = $schema->resultset("Artist")->find(3);
+cmp_ok($artist->cds->count, '==', 1, "Correct orig #cds for artist");
+cmp_ok($nartist->cds->count, '==', 1, "Correct orig #cds for artist");
+$artist->cds->update({artist => $nartist->id});
+cmp_ok($artist->cds->count, '==', 0, "Correct new #cds for artist");
+cmp_ok($nartist->cds->count, '==', 2, "Correct new #cds for artist");
+
 }
 
 1;