release 0.08123

[dbsrgits/DBIx-Class.git] / lib / DBIx / Class / Row.pm

diff --git a/lib/DBIx/Class/Row.pm b/lib/DBIx/Class/Row.pm
index 1faee57..7ed3951 100644 (file)
--- a/lib/DBIx/Class/Row.pm
+++ b/lib/DBIx/Class/Row.pm
@@ -6,7 +6,7 @@ use warnings;
 use base qw/DBIx::Class/;
 
 use DBIx::Class::Exception;
-use Scalar::Util ();
+use Scalar::Util 'blessed';
 use Try::Tiny;
 use namespace::clean;
 
@@ -135,7 +135,10 @@ sub __new_related_find_or_new_helper {
   }
   else {
     my $us = $rsrc->source_name;
-    $self->throw_exception ("'$us' neither depends nor is depended on by '$relname', something is wrong...");
+    $self->throw_exception (
+      "Unable to determine relationship '$relname' direction from '$us', "
+    . "possibly due to a missing reverse-relationship on '$relname' to '$us'."
+    );
   }
 }
 
@@ -190,7 +193,7 @@ sub new {
         my $acc_type = $info->{attrs}{accessor} || '';
         if ($acc_type eq 'single') {
           my $rel_obj = delete $attrs->{$key};
-          if(!Scalar::Util::blessed($rel_obj)) {
+          if(!blessed $rel_obj) {
             $rel_obj = $new->__new_related_find_or_new_helper($key, $rel_obj);
           }
 
@@ -210,7 +213,7 @@ sub new {
           my @objects;
           foreach my $idx (0 .. $#$others) {
             my $rel_obj = $others->[$idx];
-            if(!Scalar::Util::blessed($rel_obj)) {
+            if(!blessed $rel_obj) {
               $rel_obj = $new->__new_related_find_or_new_helper($key, $rel_obj);
             }
 
@@ -228,7 +231,7 @@ sub new {
         elsif ($acc_type eq 'filter') {
           ## 'filter' should disappear and get merged in with 'single' above!
           my $rel_obj = delete $attrs->{$key};
-          if(!Scalar::Util::blessed($rel_obj)) {
+          if(!blessed $rel_obj) {
             $rel_obj = $new->__new_related_find_or_new_helper($key, $rel_obj);
           }
           if ($rel_obj->in_storage) {
@@ -304,8 +307,7 @@ sub insert {
     my $rel_obj = $related_stuff{$relname};
 
     if (! $self->{_rel_in_storage}{$relname}) {
-      next unless (Scalar::Util::blessed($rel_obj)
-                    && $rel_obj->isa('DBIx::Class::Row'));
+      next unless (blessed $rel_obj && $rel_obj->isa('DBIx::Class::Row'));
 
       next unless $source->_pk_depends_on(
                     $relname, { $rel_obj->get_columns }
@@ -399,9 +401,7 @@ sub insert {
       : $related_stuff{$relname}
     ;
 
-    if (@cands
-          && Scalar::Util::blessed($cands[0])
-            && $cands[0]->isa('DBIx::Class::Row')
+    if (@cands && blessed $cands[0] && $cands[0]->isa('DBIx::Class::Row')
     ) {
       my $reverse = $source->reverse_relationship_info($relname);
       foreach my $obj (@cands) {
@@ -424,6 +424,7 @@ sub insert {
 
   $self->in_storage(1);
   delete $self->{_orig_ident};
+  delete $self->{_orig_ident_failreason};
   delete $self->{_ignore_at_insert};
   $rollback_guard->commit if $rollback_guard;
 
@@ -524,7 +525,7 @@ sub update {
 
   $self->throw_exception( "Not in database" ) unless $self->in_storage;
 
-  $self->throw_exception('Unable to update a row with incomplete or no identity')
+  $self->throw_exception($self->{_orig_ident_failreason})
     if ! keys %$ident_cond;
 
   my $rows = $self->result_source->storage->update(
@@ -590,14 +591,14 @@ sub delete {
     $self->throw_exception( "Not in database" ) unless $self->in_storage;
 
     my $ident_cond = $self->{_orig_ident} || $self->ident_condition;
-    $self->throw_exception('Unable to delete a row with incomplete or no identity')
+    $self->throw_exception($self->{_orig_ident_failreason})
       if ! keys %$ident_cond;
 
     $self->result_source->storage->delete(
       $self->result_source, $ident_cond
     );
 
-    delete $self->{_orig_ident};
+    delete $self->{_orig_ident};  # no longer identifiable
     $self->in_storage(undef);
   }
   else {
@@ -859,7 +860,16 @@ sub set_column {
   my ($self, $column, $new_value) = @_;
 
   # if we can't get an ident condition on first try - mark the object as unidentifiable
-  $self->{_orig_ident} ||= (try { $self->ident_condition }) || {};
+  # (by using an empty hashref) and store the error for further diag
+  unless ($self->{_orig_ident}) {
+    try {
+      $self->{_orig_ident} = $self->ident_condition
+    }
+    catch {
+      $self->{_orig_ident_failreason} = $_;
+      $self->{_orig_ident} = {};
+    };
+  }
 
   my $old_value = $self->get_column($column);
   $new_value = $self->store_column($column, $new_value);
@@ -1355,7 +1365,7 @@ sub get_from_storage {
 
     my $ident_cond = $self->{_orig_ident} || $self->ident_condition;
 
-    $self->throw_exception('Unable to requery a row with incomplete or no identity')
+    $self->throw_exception($self->{_orig_ident_failreason})
       if ! keys %$ident_cond;
 
     return $resultset->find($ident_cond);