From: Peter Rabbitson <ribasushi@cpan.org>
Date: Sun, 28 Jun 2009 11:00:03 +0000 (+0000)
Subject: The prefetch+group_by is a complex problem - branch
X-Git-Url: http://git.shadowcat.co.uk/gitweb/gitweb.cgi?a=commitdiff_plain;h=dca04b1fa6473b375e94544facf6c009c052720c;p=dbsrgits%2FDBIx-Class-Historic.git

The prefetch+group_by is a complex problem - branch
---

diff --git a/t/prefetch/grouped.t b/t/prefetch/grouped.t
deleted file mode 100644
index c517741..0000000
--- a/t/prefetch/grouped.t
+++ /dev/null
@@ -1,75 +0,0 @@
-#!/usr/bin/perl
-
-use strict;
-use warnings;
-use Test::More 'no_plan';
-
-use lib qw(t/lib);
-use DBICTest;
-use DBIC::SqlMakerTest;
-use DBIC::DebugObj;
-
-#plan tests => 6;
-
-my $schema = DBICTest->init_schema( deploy_args => { add_drop_table => 1 } );
-
-## CD has_many Tracks
-## Track belongs_to CD
-
-my $cd_count = $schema->resultset('CD')->count;
-is($cd_count, 5, 'Plain CDs count');
-# print STDERR "CDs: $cd_count\n";
-
-my $cd_tracks = $schema->resultset('CD')->related_resultset('tracks')->count;
-is($cd_tracks, 15, 'Tracks for CDs');
-# print STDERR "CD Tracks: $cd_tracks\n";
-
-my $count_per_cd = $schema->resultset('Track')->
-    search({}, 
-           { 'select' => [ 'me.cd', { count => 'me.trackid', } ],
-             'as' =>     [ 'cd', 'cd_count' ],
-             'group_by' => ['me.cd'],
-#    [ 'me.cd', 'cd_count' ],
-           });
-
-while (my $cnt = $count_per_cd->next) {
-    is($cnt->get_column('cd_count'), 3, 'CDs per track ' . $cnt->get_column('cd'));
-#    print STDERR "CD: " . $cnt->get_column('cd') . " count: " . $cnt->get_column('cd_count') . "\n";
-}
-
-$count_per_cd->reset;
-while (my $trcnt = $count_per_cd->next) {
-#    print STDERR "CD: " . $trcnt->get_column('cd') . " count: " . $trcnt->get_column('cd_count') . "\n";
-    ok($trcnt->cd->title, 'Title for CD, fetched (' . $trcnt->get_column('cd') . ')');
-#    print STDERR "CD title: " . $trcnt->cd->title . "\n";
-}
-
-
-## This is the working sql for group/prefetch combo
-# my $stuff = $schema->storage->dbh_do(
-#    sub {
-#      my ($storage, $dbh) = @_;
-#      $dbh->selectall_arrayref("SELECT me.cd, me.count, cd.cdid, cd.artist, cd.title, cd.year, cd.genreid, cd.single_track FROM (SELECT me.cd, COUNT( me.trackid ) as count FROM track me GROUP BY me.cd) AS me JOIN cd cd ON cd.cdid = me.cd");
-#    },
-#);
-
-# print STDERR Data::Dumper::Dumper($stuff);
-
-{
-  my ($sql, @bind);
-  $schema->storage->debugobj(DBIC::DebugObj->new(\$sql, \@bind));
-  $schema->storage->debug(1);
-
-  my $count_per_prefetched = $count_per_cd->search({}, { prefetch => 'cd' });
-  is($count_per_prefetched->all, 5, 'Prefetched count with groupby');
-#  print STDERR "Tracks/CDs with prefetch, count: " . $count_per_prefetched->count . "\n";
-
-  is_same_sql_bind (
-    $sql,
-    \@bind,
-    "SELECT me.cd, me.count, cd.cdid, cd.artist, cd.title, cd.year, cd.genreid, cd.single_track FROM (SELECT me.cd, COUNT( me.trackid ) as count FROM track me GROUP BY me.cd) AS me JOIN cd cd ON cd.cdid = me.cd",
-    [ ],
-  );
-# }
-
-}