From: Peter Rabbitson <ribasushi@cpan.org>
Date: Sat, 30 Apr 2011 00:43:30 +0000 (+0200)
Subject: Revert incorrect assumption about non-functional cached pagers 65245220
X-Git-Tag: v0.08191~8
X-Git-Url: http://git.shadowcat.co.uk/gitweb/gitweb.cgi?a=commitdiff_plain;h=74719352f7e25d81f00de886daa77094ce3289f8;p=dbsrgits%2FDBIx-Class.git

Revert incorrect assumption about non-functional cached pagers 65245220

While on the surface it seems logical that a cached resultset is inherently
non-pageable, one has to remember that search chaining with different
arguments (i.e. different offset) fires a new query, not subject to the
existing resultset cache.
---

diff --git a/Changes b/Changes
index ddea653..69b553d 100644
--- a/Changes
+++ b/Changes
@@ -38,6 +38,8 @@ Revision history for DBIx::Class
         - Fix older oracle-specific "WhereJoins" to work properly with
           name quoting
         - Fix problems with M.A.D. under CGI::SpeedyCGI (RT#65131)
+        - Reenable paging of cached resultsets - breakage erroneously added
+          in 0.08127
         - Better error handling when prepare() fails silently
         - Fixes skipped lines when a comment is followed by a statement
           when deploying a schema via sql file
diff --git a/lib/DBIx/Class/ResultSet.pm b/lib/DBIx/Class/ResultSet.pm
index 089972e..7e5a850 100644
--- a/lib/DBIx/Class/ResultSet.pm
+++ b/lib/DBIx/Class/ResultSet.pm
@@ -2157,10 +2157,6 @@ sub pager {
 
   return $self->{pager} if $self->{pager};
 
-  if ($self->get_cache) {
-    $self->throw_exception ('Pagers on cached resultsets are not supported');
-  }
-
   my $attrs = $self->{attrs};
   if (!defined $attrs->{page}) {
     $self->throw_exception("Can't create pager for non-paged rs");
diff --git a/t/67pager.t b/t/67pager.t
index 1835d6d..b7eb2ca 100644
--- a/t/67pager.t
+++ b/t/67pager.t
@@ -152,19 +152,31 @@ is ($qcnt, 0, 'No queries with explicitly sey total count');
 # test cached resultsets
 my $init_cnt = $rs->count;
 
-$it = $rs->search({}, { rows => 3, cache => 1 })->page(3);
+$it = $rs->search({}, { rows => 3, cache => 1 })->page(2);
+is ($it->count, 3, '3 rows');
+is (scalar $it->all, 3, '3 objects');
+
+isa_ok($it->pager,'Data::Page','Get a pager back ok');
+is($it->pager->total_entries,7);
+is($it->pager->current_page,2);
+is($it->pager->entries_on_this_page,3);
+
+$it = $it->page(3);
 is ($it->count, 1, 'One row');
 is (scalar $it->all, 1, 'One object');
 
+isa_ok($it->pager,'Data::Page','Get a pager back ok');
+is($it->pager->total_entries,7);
+is($it->pager->current_page,3);
+is($it->pager->entries_on_this_page,1);
+
+
 $it->delete;
 is ($rs->count, $init_cnt - 1, 'One row deleted as expected');
 
 is ($it->count, 1, 'One row (cached)');
 is (scalar $it->all, 1, 'One object (cached)');
 
-throws_ok { $it->pager }
-  qr/Pagers on cached resultsets are not supported/, 'No pagers on cached resultsets';
-
 # test fresh rs creation with modified defaults
 my $p = sub { $schema->resultset('CD')->page(1)->pager->entries_per_page; };