From: Andy Grundman <andy@hybridized.org>
Date: Tue, 30 Aug 2005 18:49:11 +0000 (+0000)
Subject: Added tests for software-based limiting/paging, and a few related bug fixes
X-Git-Url: http://git.shadowcat.co.uk/gitweb/gitweb.cgi?a=commitdiff_plain;h=9229f20afca715e8a1c7e852e46d9333dd392548;p=dbsrgits%2FDBIx-Class-Historic.git

Added tests for software-based limiting/paging, and a few related bug fixes
---

diff --git a/lib/DBIx/Class/ResultSet.pm b/lib/DBIx/Class/ResultSet.pm
index 28131b3..f2a0b37 100644
--- a/lib/DBIx/Class/ResultSet.pm
+++ b/lib/DBIx/Class/ResultSet.pm
@@ -20,7 +20,9 @@ sub new {
     count => undef,
     pager => undef,
     attrs => $attrs };
-  return bless ($new, $it_class);
+  bless ($new, $it_class);
+  $new->pager if ($attrs->{page});
+  return $new;
 }
 
 sub cursor {
@@ -65,6 +67,7 @@ sub count {
                                               $self->{cond}, $attrs);
   }
   return 0 unless $self->{count};
+  return $self->{pager}->entries_on_this_page if ($self->{pager});
   return ( $attrs->{rows} && $attrs->{rows} < $self->{count} ) 
     ? $attrs->{rows} 
     : $self->{count};
diff --git a/lib/DBIx/Class/Storage/DBI.pm b/lib/DBIx/Class/Storage/DBI.pm
index 5a1509a..c24bdac 100644
--- a/lib/DBIx/Class/Storage/DBI.pm
+++ b/lib/DBIx/Class/Storage/DBI.pm
@@ -127,8 +127,9 @@ sub select {
     $order = $1 if $$condition =~ s/ORDER BY (.*)$//i;
   }
   my @args = ('select', $attrs->{bind}, $ident, $select, $condition, $order);
-  if ($self->sql_maker->_default_limit_syntax eq "GenericSubQ") {
-    $attrs->{software_limit} = 1;
+  if ($attrs->{software_limit} ||
+      $self->sql_maker->_default_limit_syntax eq "GenericSubQ") {
+        $attrs->{software_limit} = 1;
   } else {
     push @args, $attrs->{rows}, $attrs->{offset};
   }
@@ -143,8 +144,9 @@ sub select_single {
     $order = $1 if $$condition =~ s/ORDER BY (.*)$//i;
   }
   my @args = ('select', $attrs->{bind}, $ident, $select, $condition, $order);
-  if ($self->sql_maker->_default_limit_syntax eq "GenericSubQ") {
-    $attrs->{software_limit} = 1;
+  if ($attrs->{software_limit} ||
+      $self->sql_maker->_default_limit_syntax eq "GenericSubQ") {
+        $attrs->{software_limit} = 1;
   } else {
     push @args, 1, $attrs->{offset};
   }  
diff --git a/t/07pager.t b/t/07pager.t
index de8dbaf..64f33f9 100644
--- a/t/07pager.t
+++ b/t/07pager.t
@@ -1,6 +1,6 @@
 use Test::More;
 
-plan tests => 8;
+plan tests => 13;
 
 use lib qw(t/lib);
 
@@ -45,4 +45,22 @@ $it = DBICTest::CD->search(
 );
 my $page = $it->page(2);
 
+is( $page->count, 2, "standard resultset paged rs count ok" );
+
 is( $page->next->title, "Generic Manufactured Singles", "second page of standard resultset ok" );
+
+# test software-based limit paging
+$it = DBICTest::CD->search(
+  {},
+  { order_by => 'title',
+    rows => 3,
+    page => 2,
+    software_limit => 1 }
+);
+is( $it->pager->entries_on_this_page, 2, "software entries_on_this_page ok" );
+
+is( $it->pager->previous_page, 1, "software previous_page ok" );
+
+is( $it->count, 2, "software count on paged rs ok" );
+
+is( $it->next->title, "Generic Manufactured Singles", "software iterator->next ok" );
diff --git a/t/15limit.t b/t/15limit.t
index edad740..98fca7a 100644
--- a/t/15limit.t
+++ b/t/15limit.t
@@ -3,7 +3,7 @@ use Test::More;
 
 BEGIN {
     eval "use DBD::SQLite";
-    plan $@ ? (skip_all => 'needs DBD::SQLite for testing') : (tests => 6);
+    plan $@ ? (skip_all => 'needs DBD::SQLite for testing') : (tests => 10);
 }                                                                               
 
 use lib qw(t/lib);
@@ -29,6 +29,26 @@ my @cds = DBICTest::CD->search( {},
 );
 is( $cds[0]->title, "Spoonful of bees", "offset ok" );
 
+# test software-based limiting
+$it = DBICTest::CD->search( {},
+    { rows => 3,
+      software_limit => 1,
+      order_by => 'title' }
+);
+is( $it->count, 3, "software limit count ok" );
+is( $it->next->title, "Caterwaulin' Blues", "software iterator->next ok" );
+$it->next;
+$it->next;
+is( $it->next, undef, "software next past end of resultset ok" );
+
+@cds = DBICTest::CD->search( {},
+    { rows => 2,
+      offset => 2,
+      software_limit => 1,
+      order_by => 'year' }
+);
+is( $cds[0]->title, "Spoonful of bees", "software offset ok" );
+
 # based on a failing criteria submitted by waswas
 # requires SQL::Abstract >= 1.20
 $it = DBICTest::CD->search(