prefetch-grouped fails, again

[dbsrgits/DBIx-Class-Historic.git] / t / prefetch / grouped.t

diff --git a/t/prefetch/grouped.t b/t/prefetch/grouped.t
index 85fd730..af9b1f0 100644 (file)
--- a/t/prefetch/grouped.t
+++ b/t/prefetch/grouped.t
@@ -1,14 +1,13 @@
 use strict;
 use warnings;
+
 use Test::More;
+use Test::Exception;
 
 use lib qw(t/lib);
 use DBICTest;
 use DBIC::SqlMakerTest;
 
-#plan tests => 6;
-plan 'no_plan';
-
 my $schema = DBICTest->init_schema();
 my $sdebug = $schema->storage->debug;
 
@@ -28,7 +27,6 @@ for ($cd_rs->all) {
   my $track_rs = $schema->resultset ('Track')->search (
     { 'me.cd' => { -in => [ $cd_rs->get_column ('cdid')->all ] } },
     {
-      # the select/as is deliberately silly to test both funcs and refs below
       select => [
         'me.cd',
         { count => 'me.trackid' },
@@ -67,8 +65,6 @@ for ($cd_rs->all) {
   # Test sql by hand, as the sqlite db will simply paper over
   # improper group/select combinations
   #
-  # the exploded IN needs fixing below, coming in another branch
-  #
   is_same_sql_bind (
     $track_rs->count_rs->as_query,
     '(
@@ -77,7 +73,7 @@ for ($cd_rs->all) {
           SELECT me.cd
             FROM track me
             JOIN cd cd ON cd.cdid = me.cd
-          WHERE ( me.cd IN ( ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ? ) )
+          WHERE ( me.cd IN ( ?, ?, ?, ?, ? ) )
           GROUP BY me.cd
         )
       count_subq
@@ -94,11 +90,11 @@ for ($cd_rs->all) {
           SELECT me.cd, COUNT (me.trackid) AS track_count,
             FROM track me
             JOIN cd cd ON cd.cdid = me.cd
-          WHERE ( me.cd IN ( ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ? ) )
+          WHERE ( me.cd IN ( ?, ?, ?, ?, ? ) )
           GROUP BY me.cd
           ) as me
         JOIN cd cd ON cd.cdid = me.cd
-      WHERE ( me.cd IN ( ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ? ) )
+      WHERE ( me.cd IN ( ?, ?, ?, ?, ? ) )
     )',
     [ map { [ 'me.cd' => $_] } ( ($cd_rs->get_column ('cdid')->all) x 2 ) ],
     'next() query generated expected SQL',
@@ -131,14 +127,19 @@ for ($cd_rs->all) {
 # test a has_many/might_have prefetch at the same level
 # Note that one of the CDs now has 4 tracks instead of 3
 {
-  my $most_tracks_rs = $cd_rs->search ({}, {
-    prefetch => 'liner_notes',  # tracks are alredy prefetched
-    select => ['me.cdid', { count => 'tracks.trackid' } ],
-    as => [qw/cdid track_count/],
-    group_by => 'me.cdid',
-    order_by => { -desc => 'track_count' },
-    rows => 2,
-  });
+  my $most_tracks_rs = $schema->resultset ('CD')->search (
+    {
+      'me.cdid' => { '!=' => undef },  # duh - this is just to test WHERE
+    },
+    {
+      prefetch => [qw/tracks liner_notes/],
+      select => ['me.cdid', { count => 'tracks.trackid' } ],
+      as => [qw/cdid track_count/],
+      group_by => 'me.cdid',
+      order_by => { -desc => 'track_count' },
+      rows => 2,
+    }
+  );
 
   is_same_sql_bind (
     $most_tracks_rs->count_rs->as_query,
@@ -149,7 +150,7 @@ for ($cd_rs->all) {
             FROM cd me
             LEFT JOIN track tracks ON tracks.cd = me.cdid
             LEFT JOIN liner_notes liner_notes ON liner_notes.liner_id = me.cdid
-          WHERE ( tracks.cd IS NOT NULL )
+          WHERE ( me.cdid IS NOT NULL )
           GROUP BY me.cdid
           LIMIT 2
         ) count_subq
@@ -166,14 +167,14 @@ for ($cd_rs->all) {
           SELECT me.cdid, COUNT( tracks.trackid ) AS track_count
             FROM cd me
             LEFT JOIN track tracks ON tracks.cd = me.cdid
-          WHERE ( tracks.cd IS NOT NULL )
+          WHERE ( me.cdid IS NOT NULL )
           GROUP BY me.cdid
           ORDER BY track_count DESC
           LIMIT 2
         ) me
         LEFT JOIN track tracks ON tracks.cd = me.cdid
         LEFT JOIN liner_notes liner_notes ON liner_notes.liner_id = me.cdid
-      WHERE ( tracks.cd IS NOT NULL )
+      WHERE ( me.cdid IS NOT NULL )
       ORDER BY track_count DESC, tracks.cd
     )',
     [],
@@ -201,3 +202,73 @@ for ($cd_rs->all) {
   $schema->storage->debugcb (undef);
   $schema->storage->debug ($sdebug);
 }
+
+# make sure that distinct still works
+{
+  my $rs = $schema->resultset("CD")->search({}, {
+    prefetch => 'tags',
+    order_by => 'cdid',
+    distinct => 1,
+  });
+
+  is_same_sql_bind (
+    $rs->as_query,
+    '(
+      SELECT me.cdid, me.artist, me.title, me.year, me.genreid, me.single_track,
+             tags.tagid, tags.cd, tags.tag 
+        FROM (
+          SELECT me.cdid, me.artist, me.title, me.year, me.genreid, me.single_track
+            FROM cd me
+          GROUP BY me.cdid, me.artist, me.title, me.year, me.genreid, me.single_track
+          ORDER BY cdid
+        ) me
+        LEFT JOIN tags tags ON tags.cd = me.cdid
+      ORDER BY cdid, tags.cd, tags.tag
+    )',
+    [],
+    'Prefetch + distinct resulted in correct group_by',
+  );
+
+  is ($rs->all, 5, 'Correct number of CD objects');
+  is ($rs->count, 5, 'Correct count of CDs');
+}
+
+lives_ok (sub {
+    my $rs = $schema->resultset("Artwork")->search(undef, {distinct => 1})
+              ->search_related('artwork_to_artist')->search_related('artist',
+                 undef,
+                  { prefetch => q(cds) },
+              );
+    is($rs->all, 0, 'prefetch without WHERE');
+
+    $rs = $schema->resultset("Artwork")->search(undef, {distinct => 1})
+              ->search_related('artwork_to_artist')->search_related('artist',
+                 { 'cds.title' => 'foo' },
+                  { prefetch => q(cds) },
+              );
+    is($rs->all, 0, 'prefetch with WHERE');
+
+
+    # different case
+    $rs = $schema->resultset("Artist")->search(undef)
+                ->search_related('cds')->search_related('genre',
+                    { 'genre.name' => 'foo' },
+                    { prefetch => q(cds) },
+                 );
+    is($rs->all, 0, 'prefetch without distinct');
+
+    $rs = $schema->resultset("Artist")->search(undef, {distinct => 1})
+                ->search_related('cds')->search_related('genre',
+                    { 'genre.name' => 'foo' },
+                 );
+    is($rs->all, 0, 'distinct without prefetch');
+
+    $rs = $schema->resultset("Artist")->search({artistid => '11'}, {distinct => 1})
+                ->search_related('cds')->search_related('genre',
+                    { 'genre.name' => 'foo' },
+                    { prefetch => q(cds) },
+                 );
+    is($rs->all, 0, 'prefetch with distinct');
+}, 'distinct generally works with prefetch');
+
+done_testing;