[Bast-commits] r6950 - in DBIx-Class/0.08/trunk: . lib/DBIx/Class t/prefetch

ribasushi at dev.catalyst.perl.org ribasushi at dev.catalyst.perl.org
Thu Jul 2 22:14:50 GMT 2009


Author: ribasushi
Date: 2009-07-02 22:14:50 +0000 (Thu, 02 Jul 2009)
New Revision: 6950

Added:
   DBIx-Class/0.08/trunk/t/prefetch/incomplete.t
Modified:
   DBIx-Class/0.08/trunk/
   DBIx-Class/0.08/trunk/lib/DBIx/Class/ResultSource.pm
   DBIx-Class/0.08/trunk/lib/DBIx/Class/Row.pm
Log:
 r6360 at Thesaurus (orig r6359):  arcanez | 2009-05-21 20:18:52 +0200
 branch to work on prefetch/select
 r6361 at Thesaurus (orig r6360):  arcanez | 2009-05-21 20:32:46 +0200
 failing test
 r6373 at Thesaurus (orig r6372):  ribasushi | 2009-05-22 11:07:26 +0200
 Simplify unresolvable test by arcanez
 r6905 at Thesaurus (orig r6904):  ribasushi | 2009-07-01 12:54:03 +0200
 Extend test
 r6950 at Thesaurus (orig r6949):  ribasushi | 2009-07-03 00:14:09 +0200
 Apparent fix - simply delay the in_storage flagging of the main object until all prefetched objects are inflated. The rest of the changes are just cosmetics, preparing for the collapse_result rewrite



Property changes on: DBIx-Class/0.08/trunk
___________________________________________________________________
Name: svk:merge
   - 168d5346-440b-0410-b799-f706be625ff1:/DBIx-Class-current:2207
462d4d0c-b505-0410-bf8e-ce8f877b3390:/local/bast/DBIx-Class:3159
4d5fae46-8e6a-4e08-abee-817e9fb894a2:/local/bast/DBIx-Class/0.08/branches/resultsetcolumn_custom_columns:5160
4d5fae46-8e6a-4e08-abee-817e9fb894a2:/local/bast/DBIx-Class/0.08/branches/sqla_1.50_compat:5414
4d5fae46-8e6a-4e08-abee-817e9fb894a2:/local/bast/DBIx-Class/0.08/trunk:5969
9c88509d-e914-0410-b01c-b9530614cbfe:/local/DBIx-Class:32260
9c88509d-e914-0410-b01c-b9530614cbfe:/local/DBIx-Class-CDBICompat:54993
9c88509d-e914-0410-b01c-b9530614cbfe:/vendor/DBIx-Class:31122
ab17426e-7cd3-4704-a2a2-80b7c0a611bb:/local/dbic_column_attr:10946
ab17426e-7cd3-4704-a2a2-80b7c0a611bb:/local/dbic_trunk:11788
bd5ac9a7-f185-4d95-9186-dbb8b392a572:/local/os/bast/DBIx-Class/0.08/trunk:2798
bd8105ee-0ff8-0310-8827-fb3f25b6796d:/DBIx-Class/0.08/branches/belongs_to_null_col_fix:5244
bd8105ee-0ff8-0310-8827-fb3f25b6796d:/DBIx-Class/0.08/branches/cdbicompat_integration:4160
bd8105ee-0ff8-0310-8827-fb3f25b6796d:/DBIx-Class/0.08/branches/column_attr:5074
bd8105ee-0ff8-0310-8827-fb3f25b6796d:/DBIx-Class/0.08/branches/complex_join_rels:4589
bd8105ee-0ff8-0310-8827-fb3f25b6796d:/DBIx-Class/0.08/branches/count_distinct:6218
bd8105ee-0ff8-0310-8827-fb3f25b6796d:/DBIx-Class/0.08/branches/count_rs:6741
bd8105ee-0ff8-0310-8827-fb3f25b6796d:/DBIx-Class/0.08/branches/diamond_relationships:6310
bd8105ee-0ff8-0310-8827-fb3f25b6796d:/DBIx-Class/0.08/branches/file_column:3920
bd8105ee-0ff8-0310-8827-fb3f25b6796d:/DBIx-Class/0.08/branches/fix-update-and-delete-as_query:6162
bd8105ee-0ff8-0310-8827-fb3f25b6796d:/DBIx-Class/0.08/branches/grouped_prefetch:6885
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bd8105ee-0ff8-0310-8827-fb3f25b6796d:/DBIx-Class/0.08/branches/order_by_refactor:6475
bd8105ee-0ff8-0310-8827-fb3f25b6796d:/DBIx-Class/0.08/branches/parser_fk_index:4485
bd8105ee-0ff8-0310-8827-fb3f25b6796d:/DBIx-Class/0.08/branches/prefetch:5699
bd8105ee-0ff8-0310-8827-fb3f25b6796d:/DBIx-Class/0.08/branches/prefetch_limit:6724
bd8105ee-0ff8-0310-8827-fb3f25b6796d:/DBIx-Class/0.08/branches/replication_dedux:4600
bd8105ee-0ff8-0310-8827-fb3f25b6796d:/DBIx-Class/0.08/branches/rsrc_in_storage:6577
bd8105ee-0ff8-0310-8827-fb3f25b6796d:/DBIx-Class/0.08/branches/rt_bug_41083:5437
bd8105ee-0ff8-0310-8827-fb3f25b6796d:/DBIx-Class/0.08/branches/savepoints:4223
bd8105ee-0ff8-0310-8827-fb3f25b6796d:/DBIx-Class/0.08/branches/search_related_prefetch:6818
bd8105ee-0ff8-0310-8827-fb3f25b6796d:/DBIx-Class/0.08/branches/sqla_1.50_compat:5321
bd8105ee-0ff8-0310-8827-fb3f25b6796d:/DBIx-Class/0.08/branches/storage-ms-access:4142
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bd8105ee-0ff8-0310-8827-fb3f25b6796d:/DBIx-Class/0.08/branches/sybase_mssql:6125
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bd8105ee-0ff8-0310-8827-fb3f25b6796d:/branches/DBIx-Class/datetime:1716
bd8105ee-0ff8-0310-8827-fb3f25b6796d:/branches/DBIx-Class/find_compat:1855
bd8105ee-0ff8-0310-8827-fb3f25b6796d:/branches/DBIx-Class/find_unique_query_fixes:2142
bd8105ee-0ff8-0310-8827-fb3f25b6796d:/branches/DBIx-Class/inflate:1988
bd8105ee-0ff8-0310-8827-fb3f25b6796d:/branches/DBIx-Class/many_to_many:2025
bd8105ee-0ff8-0310-8827-fb3f25b6796d:/branches/DBIx-Class/re_refactor_bugfix:1944
bd8105ee-0ff8-0310-8827-fb3f25b6796d:/branches/DBIx-Class/reorganize_tests:1827
bd8105ee-0ff8-0310-8827-fb3f25b6796d:/branches/DBIx-Class/resultset-new-refactor:1766
bd8105ee-0ff8-0310-8827-fb3f25b6796d:/branches/DBIx-Class/resultset_2_electric_boogaloo:2175
bd8105ee-0ff8-0310-8827-fb3f25b6796d:/branches/DBIx-Class/resultset_cleanup:2102
bd8105ee-0ff8-0310-8827-fb3f25b6796d:/branches/DBIx-Class/sqlt_tests_refactor:2043
bd8105ee-0ff8-0310-8827-fb3f25b6796d:/trunk/DBIx-Class:3606
fe160bb6-dc1c-0410-9f2b-d64a711b54a5:/local/DBIC-trunk-0.08:10510
   + 168d5346-440b-0410-b799-f706be625ff1:/DBIx-Class-current:2207
462d4d0c-b505-0410-bf8e-ce8f877b3390:/local/bast/DBIx-Class:3159
4d5fae46-8e6a-4e08-abee-817e9fb894a2:/local/bast/DBIx-Class/0.08/branches/resultsetcolumn_custom_columns:5160
4d5fae46-8e6a-4e08-abee-817e9fb894a2:/local/bast/DBIx-Class/0.08/branches/sqla_1.50_compat:5414
4d5fae46-8e6a-4e08-abee-817e9fb894a2:/local/bast/DBIx-Class/0.08/trunk:5969
9c88509d-e914-0410-b01c-b9530614cbfe:/local/DBIx-Class:32260
9c88509d-e914-0410-b01c-b9530614cbfe:/local/DBIx-Class-CDBICompat:54993
9c88509d-e914-0410-b01c-b9530614cbfe:/vendor/DBIx-Class:31122
ab17426e-7cd3-4704-a2a2-80b7c0a611bb:/local/dbic_column_attr:10946
ab17426e-7cd3-4704-a2a2-80b7c0a611bb:/local/dbic_trunk:11788
bd5ac9a7-f185-4d95-9186-dbb8b392a572:/local/os/bast/DBIx-Class/0.08/trunk:2798
bd8105ee-0ff8-0310-8827-fb3f25b6796d:/DBIx-Class/0.08/branches/belongs_to_null_col_fix:5244
bd8105ee-0ff8-0310-8827-fb3f25b6796d:/DBIx-Class/0.08/branches/cdbicompat_integration:4160
bd8105ee-0ff8-0310-8827-fb3f25b6796d:/DBIx-Class/0.08/branches/column_attr:5074
bd8105ee-0ff8-0310-8827-fb3f25b6796d:/DBIx-Class/0.08/branches/complex_join_rels:4589
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bd8105ee-0ff8-0310-8827-fb3f25b6796d:/DBIx-Class/0.08/branches/count_rs:6741
bd8105ee-0ff8-0310-8827-fb3f25b6796d:/DBIx-Class/0.08/branches/diamond_relationships:6310
bd8105ee-0ff8-0310-8827-fb3f25b6796d:/DBIx-Class/0.08/branches/file_column:3920
bd8105ee-0ff8-0310-8827-fb3f25b6796d:/DBIx-Class/0.08/branches/fix-update-and-delete-as_query:6162
bd8105ee-0ff8-0310-8827-fb3f25b6796d:/DBIx-Class/0.08/branches/grouped_prefetch:6885
bd8105ee-0ff8-0310-8827-fb3f25b6796d:/DBIx-Class/0.08/branches/joined_count:6323
bd8105ee-0ff8-0310-8827-fb3f25b6796d:/DBIx-Class/0.08/branches/multi_stuff:5565
bd8105ee-0ff8-0310-8827-fb3f25b6796d:/DBIx-Class/0.08/branches/mystery_join:6589
bd8105ee-0ff8-0310-8827-fb3f25b6796d:/DBIx-Class/0.08/branches/on_connect_call:6854
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bd8105ee-0ff8-0310-8827-fb3f25b6796d:/DBIx-Class/0.08/branches/order_by_refactor:6475
bd8105ee-0ff8-0310-8827-fb3f25b6796d:/DBIx-Class/0.08/branches/parser_fk_index:4485
bd8105ee-0ff8-0310-8827-fb3f25b6796d:/DBIx-Class/0.08/branches/prefetch:5699
bd8105ee-0ff8-0310-8827-fb3f25b6796d:/DBIx-Class/0.08/branches/prefetch_limit:6724
bd8105ee-0ff8-0310-8827-fb3f25b6796d:/DBIx-Class/0.08/branches/replication_dedux:4600
bd8105ee-0ff8-0310-8827-fb3f25b6796d:/DBIx-Class/0.08/branches/rsrc_in_storage:6577
bd8105ee-0ff8-0310-8827-fb3f25b6796d:/DBIx-Class/0.08/branches/rt_bug_41083:5437
bd8105ee-0ff8-0310-8827-fb3f25b6796d:/DBIx-Class/0.08/branches/savepoints:4223
bd8105ee-0ff8-0310-8827-fb3f25b6796d:/DBIx-Class/0.08/branches/search_related_prefetch:6818
bd8105ee-0ff8-0310-8827-fb3f25b6796d:/DBIx-Class/0.08/branches/sqla_1.50_compat:5321
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bd8105ee-0ff8-0310-8827-fb3f25b6796d:/DBIx-Class/0.08/branches/sybase:5651
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bd8105ee-0ff8-0310-8827-fb3f25b6796d:/DBIx-Class/0.08/branches/unresolvable_prefetch:6949
bd8105ee-0ff8-0310-8827-fb3f25b6796d:/DBIx-Class/0.08/branches/versioned_enhancements:4125
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bd8105ee-0ff8-0310-8827-fb3f25b6796d:/branches/DBIx-Class-C3:318
bd8105ee-0ff8-0310-8827-fb3f25b6796d:/branches/DBIx-Class-current:2222
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bd8105ee-0ff8-0310-8827-fb3f25b6796d:/branches/DBIx-Class/datetime:1716
bd8105ee-0ff8-0310-8827-fb3f25b6796d:/branches/DBIx-Class/find_compat:1855
bd8105ee-0ff8-0310-8827-fb3f25b6796d:/branches/DBIx-Class/find_unique_query_fixes:2142
bd8105ee-0ff8-0310-8827-fb3f25b6796d:/branches/DBIx-Class/inflate:1988
bd8105ee-0ff8-0310-8827-fb3f25b6796d:/branches/DBIx-Class/many_to_many:2025
bd8105ee-0ff8-0310-8827-fb3f25b6796d:/branches/DBIx-Class/re_refactor_bugfix:1944
bd8105ee-0ff8-0310-8827-fb3f25b6796d:/branches/DBIx-Class/reorganize_tests:1827
bd8105ee-0ff8-0310-8827-fb3f25b6796d:/branches/DBIx-Class/resultset-new-refactor:1766
bd8105ee-0ff8-0310-8827-fb3f25b6796d:/branches/DBIx-Class/resultset_2_electric_boogaloo:2175
bd8105ee-0ff8-0310-8827-fb3f25b6796d:/branches/DBIx-Class/resultset_cleanup:2102
bd8105ee-0ff8-0310-8827-fb3f25b6796d:/branches/DBIx-Class/sqlt_tests_refactor:2043
bd8105ee-0ff8-0310-8827-fb3f25b6796d:/trunk/DBIx-Class:3606
fe160bb6-dc1c-0410-9f2b-d64a711b54a5:/local/DBIC-trunk-0.08:10510

Modified: DBIx-Class/0.08/trunk/lib/DBIx/Class/ResultSource.pm
===================================================================
--- DBIx-Class/0.08/trunk/lib/DBIx/Class/ResultSource.pm	2009-07-02 22:14:09 UTC (rev 6949)
+++ DBIx-Class/0.08/trunk/lib/DBIx/Class/ResultSource.pm	2009-07-02 22:14:50 UTC (rev 6950)
@@ -1193,7 +1193,6 @@
 
 sub _resolve_condition {
   my ($self, $cond, $as, $for) = @_;
-  #warn %$cond;
   if (ref $cond eq 'HASH') {
     my %ret;
     foreach my $k (keys %{$cond}) {
@@ -1234,7 +1233,7 @@
   } elsif (ref $cond eq 'ARRAY') {
     return [ map { $self->_resolve_condition($_, $as, $for) } @$cond ];
   } else {
-   die("Can't handle this yet :(");
+   die("Can't handle condition $cond yet :(");
   }
 }
 

Modified: DBIx-Class/0.08/trunk/lib/DBIx/Class/Row.pm
===================================================================
--- DBIx-Class/0.08/trunk/lib/DBIx/Class/Row.pm	2009-07-02 22:14:09 UTC (rev 6949)
+++ DBIx-Class/0.08/trunk/lib/DBIx/Class/Row.pm	2009-07-02 22:14:50 UTC (rev 6950)
@@ -1053,7 +1053,6 @@
   my $new = {
     _source_handle => $source_handle,
     _column_data => $me,
-    _in_storage => 1
   };
   bless $new, (ref $class || $class);
 
@@ -1065,14 +1064,25 @@
       unless $pre_source;
     if (ref($pre_val->[0]) eq 'ARRAY') { # multi
       my @pre_objects;
-      foreach my $pre_rec (@$pre_val) {
-        unless ($pre_source->primary_columns == grep { exists $pre_rec->[0]{$_}
-           and defined $pre_rec->[0]{$_} } $pre_source->primary_columns) {
-          next;
+
+      for my $me_pref (@$pre_val) {
+
+        # the collapser currently *could* return bogus elements with all
+        # columns set to undef
+        my $has_def;
+        for (values %{$me_pref->[0]}) {
+          if (defined $_) {
+            $has_def++;
+            last;
+          }
         }
-        push(@pre_objects, $pre_source->result_class->inflate_result(
-                             $pre_source, @{$pre_rec}));
+        next unless $has_def;
+
+        push @pre_objects, $pre_source->result_class->inflate_result(
+          $pre_source, @$me_pref
+        );
       }
+
       $new->related_resultset($pre)->set_cache(\@pre_objects);
     } elsif (defined $pre_val->[0]) {
       my $fetched;
@@ -1095,6 +1105,8 @@
       $new->related_resultset($pre)->set_cache([ $fetched ]);
     }
   }
+
+  $new->in_storage (1);
   return $new;
 }
 

Added: DBIx-Class/0.08/trunk/t/prefetch/incomplete.t
===================================================================
--- DBIx-Class/0.08/trunk/t/prefetch/incomplete.t	                        (rev 0)
+++ DBIx-Class/0.08/trunk/t/prefetch/incomplete.t	2009-07-02 22:14:50 UTC (rev 6950)
@@ -0,0 +1,53 @@
+use strict;
+use warnings;  
+
+use Test::More;
+use Test::Exception;
+use lib qw(t/lib);
+use DBICTest;
+
+plan tests => 9;
+
+my $schema = DBICTest->init_schema();
+
+lives_ok(sub {
+  # while cds.* will be selected anyway (prefetch currently forces the result of _resolve_prefetch)
+  # only the requested me.name column will be fetched.
+
+  # reference sql with select => [...]
+  #   SELECT me.name, cds.title, cds.cdid, cds.artist, cds.title, cds.year, cds.genreid, cds.single_track FROM ...
+
+  my $rs = $schema->resultset('Artist')->search(
+    { 'cds.title' => { '!=', 'Generic Manufactured Singles' } },
+    {
+      prefetch => [ qw/ cds / ],
+      order_by => [ { -desc => 'me.name' }, 'cds.title' ],
+      select => [qw/ me.name  cds.title / ],
+    }
+  );
+
+  is ($rs->count, 2, 'Correct number of collapsed artists');
+  my $we_are_goth = $rs->first;
+  is ($we_are_goth->name, 'We Are Goth', 'Correct first artist');
+  is ($we_are_goth->cds->count, 1, 'Correct number of CDs for first artist');
+  is ($we_are_goth->cds->first->title, 'Come Be Depressed With Us', 'Correct cd for artist');
+}, 'explicit prefetch on a keyless object works');
+
+
+lives_ok(sub {
+  # test implicit prefetch as well
+
+  my $rs = $schema->resultset('CD')->search(
+    { title => 'Generic Manufactured Singles' },
+    {
+      join=> 'artist',
+      select => [qw/ me.title artist.name / ],
+    }
+  );
+
+  my $cd = $rs->next;
+  is ($cd->title, 'Generic Manufactured Singles', 'CD title prefetched correctly');
+  isa_ok ($cd->artist, 'DBICTest::Artist');
+  is ($cd->artist->name, 'Random Boy Band', 'Artist object has correct name');
+
+}, 'implicit keyless prefetch works');




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