From: Jess Robinson <castaway@desert-island.me.uk>
Date: Fri, 18 Aug 2006 11:00:24 +0000 (+0000)
Subject: Assume scalar refs need fetching in PK::Auto (to allow \'DEFAULT'
X-Git-Url: http://git.shadowcat.co.uk/gitweb/gitweb.cgi?a=commitdiff_plain;h=260129d83a3f9906ad0ab75b728c7ca5b6ea2fd1;p=dbsrgits%2FDBIx-Class-Historic.git

Assume scalar refs need fetching in PK::Auto (to allow \'DEFAULT'
Add RowNumberOver for limits with DB2
---

diff --git a/lib/DBIx/Class/PK/Auto.pm b/lib/DBIx/Class/PK/Auto.pm
index d8a6e16..41c14a6 100644
--- a/lib/DBIx/Class/PK/Auto.pm
+++ b/lib/DBIx/Class/PK/Auto.pm
@@ -42,7 +42,8 @@ sub insert {
   my ($self, @rest) = @_;
   my $ret = $self->next::method(@rest);
 
-  my ($pri, $too_many) = grep { !defined $self->get_column($_) } $self->primary_columns;
+  my ($pri, $too_many) = grep { !defined $self->get_column($_) || 
+                                    ref($self->get_column($_)) eq 'SCALAR'} $self->primary_columns;
   return $ret unless defined $pri; # if all primaries are already populated, skip auto-inc
   $self->throw_exception( "More than one possible key found for auto-inc on ".ref $self )
     if defined $too_many;
diff --git a/lib/DBIx/Class/Storage/DBI.pm b/lib/DBIx/Class/Storage/DBI.pm
index 59f0357..6cfc4b8 100644
--- a/lib/DBIx/Class/Storage/DBI.pm
+++ b/lib/DBIx/Class/Storage/DBI.pm
@@ -29,10 +29,36 @@ sub new {
   $self;
 }
 
+sub _RowNumberOver {
+  my ($self, $sql, $order, $rows, $offset ) = @_;
+
+  $offset += 1;
+  my $last = $rows + $offset;
+  my ( $order_by ) = $self->_order_by( $order );
+
+  $sql = <<"";
+SELECT * FROM
+(
+   SELECT Q1.*, ROW_NUMBER() OVER( ) AS ROW_NUM FROM (
+      $sql
+      $order_by
+   ) Q1
+) Q2
+WHERE ROW_NUM BETWEEN $offset AND $last
+
+  return $sql;
+}
+
+
 # While we're at it, this should make LIMIT queries more efficient,
 #  without digging into things too deeply
 sub _find_syntax {
   my ($self, $syntax) = @_;
+  my $dbhname = eval { $syntax->{Driver}->{Name}} || '';
+  if(ref($self) && $dbhname && $dbhname eq 'DB2') {
+    return 'RowNumberOver';
+  }
+
   $self->{_cached_syntax} ||= $self->SUPER::_find_syntax($syntax);
 }
 
@@ -1042,8 +1068,8 @@ L<DBIx::Class::Schema/deploy>.
 =cut
 
 sub deploy {
-  my ($self, $schema, $type, $sqltargs) = @_;
-  foreach my $statement ( $self->deployment_statements($schema, $type, undef, undef, { no_comments => 1, %{ $sqltargs || {} } } ) ) {
+  my ($self, $schema, $type, $sqltargs, $dir) = @_;
+  foreach my $statement ( $self->deployment_statements($schema, $type, undef, $dir, { no_comments => 1, %{ $sqltargs || {} } } ) ) {
     for ( split(";\n", $statement)) {
       next if($_ =~ /^--/);
       next if(!$_);