From: Andy Grundman <andy@hybridized.org>
Date: Fri, 12 Aug 2005 16:40:02 +0000 (+0000)
Subject: Added initial SQL::Abstract::Limit support and tests
X-Git-Url: http://git.shadowcat.co.uk/gitweb/gitweb.cgi?a=commitdiff_plain;h=aeaf3ce2ab5d86cbdaca6857f5ee3c9cea3f1fd6;p=dbsrgits%2FDBIx-Class-Historic.git

Added initial SQL::Abstract::Limit support and tests
---

diff --git a/Build.PL b/Build.PL
index a665523..b54876b 100644
--- a/Build.PL
+++ b/Build.PL
@@ -9,7 +9,7 @@ my %arguments = (
         'DBI'                       => 0,
         'UNIVERSAL::require'        => 0,
         'NEXT'                      => 0,
-        'SQL::Abstract'             => 1.19,
+        'SQL::Abstract::Limit'      => 0.033,
         'DBD::SQLite'               => 1.08,
 	'Tie::IxHash'               => 0,
     },
diff --git a/lib/DBIx/Class/Storage/DBI.pm b/lib/DBIx/Class/Storage/DBI.pm
index 453d51c..a30de81 100644
--- a/lib/DBIx/Class/Storage/DBI.pm
+++ b/lib/DBIx/Class/Storage/DBI.pm
@@ -3,7 +3,7 @@ package DBIx::Class::Storage::DBI;
 use strict;
 use warnings;
 use DBI;
-use SQL::Abstract;
+use SQL::Abstract::Limit;
 use DBIx::Class::Storage::DBI::Cursor;
 
 use base qw/DBIx::Class/;
@@ -15,7 +15,6 @@ __PACKAGE__->mk_group_accessors('simple' =>
 
 sub new {
   my $new = bless({}, ref $_[0] || $_[0]);
-  $new->sql_maker(new SQL::Abstract);
   $new->cursor("DBIx::Class::Storage::DBI::Cursor");
   $new->debug(1) if $ENV{DBIX_CLASS_STORAGE_DBI_DEBUG};
   return $new;
@@ -60,6 +59,7 @@ sub _populate_dbh {
   my ($self) = @_;
   my @info = @{$self->connect_info || []};
   $self->_dbh($self->_connect(@info));
+  $self->sql_maker(new SQL::Abstract::Limit( limit_dialect => $self->_dbh ));
 }
 
 sub _connect {
@@ -119,7 +119,7 @@ sub select {
   if (ref $condition eq 'SCALAR') {
     $order = $1 if $$condition =~ s/ORDER BY (.*)$//i;
   }
-  my ($rv, $sth, @bind) = $self->_execute('select', $attrs->{bind}, $ident, $select, $condition, $order);
+  my ($rv, $sth, @bind) = $self->_execute('select', $attrs->{bind}, $ident, $select, $condition, $order, $attrs->{rows}, $attrs->{offset});
   return $self->cursor->new($sth, \@bind, $attrs);
 }
 
@@ -129,7 +129,7 @@ sub select_single {
   if (ref $condition eq 'SCALAR') {
     $order = $1 if $$condition =~ s/ORDER BY (.*)$//i;
   }
-  my ($rv, $sth, @bind) = $self->_execute('select', $attrs->{bind}, $ident, $select, $condition, $order);
+  my ($rv, $sth, @bind) = $self->_execute('select', $attrs->{bind}, $ident, $select, $condition, $order, 1, $attrs->{offset});
   return $sth->fetchrow_array;
 }
 
diff --git a/lib/DBIx/Class/Storage/DBI/Cursor.pm b/lib/DBIx/Class/Storage/DBI/Cursor.pm
index 3ccaef9..143425b 100644
--- a/lib/DBIx/Class/Storage/DBI/Cursor.pm
+++ b/lib/DBIx/Class/Storage/DBI/Cursor.pm
@@ -24,9 +24,6 @@ sub next {
   my $sth = $self->{sth};
   unless ($self->{live_sth}) {
     $sth->execute(@{$self->{args} || []});
-    if (my $offset = $self->{attrs}{offset}) {
-      $sth->fetch for 1 .. $offset;
-    }
     $self->{live_sth} = 1;
   }
   my @row = $sth->fetchrow_array;
diff --git a/t/15limit.t b/t/15limit.t
new file mode 100644
index 0000000..7eb548b
--- /dev/null
+++ b/t/15limit.t
@@ -0,0 +1,30 @@
+use strict;
+use Test::More;
+
+BEGIN {
+    eval "use DBD::SQLite";
+    plan $@ ? (skip_all => 'needs DBD::SQLite for testing') : (tests => 5);
+}                                                                               
+
+use lib qw(t/lib);
+
+use_ok('DBICTest');
+
+# test LIMIT
+my $it = DBICTest::CD->search( {},
+    { rows => 3,
+      order_by => 'title' }
+);
+is( $it->count, 3, "count ok" );
+is( $it->next->title, "Caterwaulin' Blues", "iterator->next ok" );
+$it->next;
+$it->next;
+is( $it->next, undef, "next past end of resultset ok" );
+
+# test OFFSET
+my @cds = DBICTest::CD->search( {},
+    { rows => 2,
+      offset => 2,
+      order_by => 'year' }
+);
+is( $cds[0]->title, "Spoonful of bees", "offset ok" );