t/prefetch/double_prefetch.t

   1 use warnings;
   2
   3 use Test::More;
   4 use Test::Exception;
   5 use lib qw(t/lib);
   6 use DBIC::SqlMakerTest;
   7 use DBICTest;
   8
   9 my $schema = DBICTest->init_schema();
  10
  11 plan tests => 1;
  12
  13 # While this is a rather GIGO case, make sure it behaves as pre-103,
  14 # as it may result in hard-to-track bugs
  15 my $cds = $schema->resultset('Artist')
  16             ->search_related ('cds')
  17               ->search ({}, {
  18                   prefetch => [ 'single_track', { single_track => 'cd' } ],
  19                 });
  20
  21 is_same_sql(
  22   ${$cds->as_query}->[0],
  23   '(
  24     SELECT
  25       cds.cdid, cds.artist, cds.title, cds.year, cds.genreid, cds.single_track,
  26       single_track.trackid, single_track.cd, single_track.position, single_track.title, single_track.last_updated_on, single_track.last_updated_at, single_track.small_dt,
  27       single_track_2.trackid, single_track_2.cd, single_track_2.position, single_track_2.title, single_track_2.last_updated_on, single_track_2.last_updated_at, single_track_2.small_dt,
  28       cd.cdid, cd.artist, cd.title, cd.year, cd.genreid, cd.single_track
  29     FROM artist me
  30       LEFT JOIN cd cds ON cds.artist = me.artistid
  31       LEFT JOIN track single_track ON single_track.trackid = cds.single_track
  32       LEFT JOIN track single_track_2 ON single_track_2.trackid = cds.single_track
  33       LEFT JOIN cd cd ON cd.cdid = single_track_2.cd
  34   )',
  35 );