[Bast-commits] r7918 - in DBIx-Class/0.08/trunk: . lib/DBIx/Class lib/DBIx/Class/Storage t/prefetch

ribasushi at dev.catalyst.perl.org ribasushi at dev.catalyst.perl.org
Mon Nov 16 18:15:46 GMT 2009 

Author: ribasushi
Date: 2009-11-16 18:15:45 +0000 (Mon, 16 Nov 2009)
New Revision: 7918

Modified:
   DBIx-Class/0.08/trunk/
   DBIx-Class/0.08/trunk/Changes
   DBIx-Class/0.08/trunk/lib/DBIx/Class/ResultSet.pm
   DBIx-Class/0.08/trunk/lib/DBIx/Class/Storage/DBIHacks.pm
   DBIx-Class/0.08/trunk/t/prefetch/grouped.t
Log:
 r7864 at Thesaurus (orig r7852):  edenc | 2009-11-10 20:15:15 +0100
 branching for fixes related to prefetch, distinct and group by
 r7865 at Thesaurus (orig r7853):  edenc | 2009-11-10 20:21:38 +0100
 added test case for ensuring a column mentioned in the order by clause is also included in the group by clause
 r7926 at Thesaurus (orig r7914):  ribasushi | 2009-11-16 08:09:30 +0100
 Make _resolve_column_info function without supplying column names
 r7927 at Thesaurus (orig r7915):  ribasushi | 2009-11-16 08:11:17 +0100
 Fix order_by/distinct bug



Property changes on: DBIx-Class/0.08/trunk
___________________________________________________________________
Name: svk:merge
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bd8105ee-0ff8-0310-8827-fb3f25b6796d:/DBIx-Class/0.08/branches/sybase_mssql:6125
bd8105ee-0ff8-0310-8827-fb3f25b6796d:/DBIx-Class/0.08/branches/sybase_support:7797
bd8105ee-0ff8-0310-8827-fb3f25b6796d:/DBIx-Class/0.08/branches/table_name_ref:7132
bd8105ee-0ff8-0310-8827-fb3f25b6796d:/DBIx-Class/0.08/branches/top_limit_altfix:6429
bd8105ee-0ff8-0310-8827-fb3f25b6796d:/DBIx-Class/0.08/branches/type_aware_update:6619
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
bd8105ee-0ff8-0310-8827-fb3f25b6796d:/DBIx-Class/0.08/branches/versioning:4578
bd8105ee-0ff8-0310-8827-fb3f25b6796d:/DBIx-Class/0.08/branches/view_rels:7908
bd8105ee-0ff8-0310-8827-fb3f25b6796d:/DBIx-Class/0.08/branches/views:5585
bd8105ee-0ff8-0310-8827-fb3f25b6796d:/DBIx-Class/0.08/tags/0.08108_prerelease_please_do_not_pull_into_it:7008
bd8105ee-0ff8-0310-8827-fb3f25b6796d:/DBIx-Class/0.08/tags/pre_0.08109_please_do_not_merge:7336
bd8105ee-0ff8-0310-8827-fb3f25b6796d:/branches/DBIx-Class-C3:318
bd8105ee-0ff8-0310-8827-fb3f25b6796d:/branches/DBIx-Class-current:2222
bd8105ee-0ff8-0310-8827-fb3f25b6796d:/branches/DBIx-Class-joins:173
bd8105ee-0ff8-0310-8827-fb3f25b6796d:/branches/DBIx-Class-resultset:570
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/Changes
===================================================================
--- DBIx-Class/0.08/trunk/Changes	2009-11-16 17:04:03 UTC (rev 7917)
+++ DBIx-Class/0.08/trunk/Changes	2009-11-16 18:15:45 UTC (rev 7918)
@@ -1,5 +1,7 @@
 Revision history for DBIx::Class
 
+        - Fix distinct => 1 with non-selecting order_by (the columns
+          in order_by also need to be aded to the resulting group_by)
         - Do not attempt to deploy FK constraints pointing to a View
 
 0.08114 2009-11-14 17:45:00 (UTC)

Modified: DBIx-Class/0.08/trunk/lib/DBIx/Class/ResultSet.pm
===================================================================
--- DBIx-Class/0.08/trunk/lib/DBIx/Class/ResultSet.pm	2009-11-16 17:04:03 UTC (rev 7917)
+++ DBIx-Class/0.08/trunk/lib/DBIx/Class/ResultSet.pm	2009-11-16 18:15:45 UTC (rev 7918)
@@ -2820,6 +2820,22 @@
     }
     else {
       $attrs->{group_by} = [ grep { !ref($_) || (ref($_) ne 'HASH') } @{$attrs->{select}} ];
+
+      # add any order_by parts that are not already present in the group_by
+      # we need to be careful not to add any named functions/aggregates
+      # i.e. select => [ ... { count => 'foo', -as 'foocount' } ... ]
+      my %already_grouped = map { $_ => 1 } (@{$attrs->{group_by}});
+
+      my $storage = $self->result_source->schema->storage;
+      my $rs_column_list = $storage->_resolve_column_info ($attrs->{from});
+      my @chunks = $storage->sql_maker->_order_by_chunks ($attrs->{order_by});
+
+      for my $chunk (map { ref $_ ? @$_ : $_ } (@chunks) ) {
+        $chunk =~ s/\s+ (?: ASC|DESC ) \s* $//ix;
+        if ($rs_column_list->{$chunk} && not $already_grouped{$chunk}++) {
+          push @{$attrs->{group_by}}, $chunk;
+        }
+      }
     }
   }
 

Modified: DBIx-Class/0.08/trunk/lib/DBIx/Class/Storage/DBIHacks.pm
===================================================================
--- DBIx-Class/0.08/trunk/lib/DBIx/Class/Storage/DBIHacks.pm	2009-11-16 17:04:03 UTC (rev 7917)
+++ DBIx-Class/0.08/trunk/lib/DBIx/Class/Storage/DBIHacks.pm	2009-11-16 18:15:45 UTC (rev 7918)
@@ -288,16 +288,16 @@
 # returns { $column_name => \%column_info, ... }
 # also note: this adds -result_source => $rsrc to the column info
 #
-# usage:
-#   my $col_sources = $self->_resolve_column_info($ident, @column_names);
+# If no columns_names are supplied returns info about *all* columns
+# for all sources
 sub _resolve_column_info {
   my ($self, $ident, $colnames) = @_;
   my ($alias2src, $root_alias) = $self->_resolve_ident_sources($ident);
 
   my $sep = $self->_sql_maker_opts->{name_sep} || '.';
-  $sep = "\Q$sep\E";
+  my $qsep = quotemeta $sep;
 
-  my (%return, %seen_cols);
+  my (%return, %seen_cols, @auto_colnames);
 
   # compile a global list of column names, to be able to properly
   # disambiguate unqualified column names (if at all possible)
@@ -305,12 +305,18 @@
     my $rsrc = $alias2src->{$alias};
     for my $colname ($rsrc->columns) {
       push @{$seen_cols{$colname}}, $alias;
+      push @auto_colnames, "$alias$sep$colname" unless $colnames;
     }
   }
 
+  $colnames ||= [
+    @auto_colnames,
+    grep { @{$seen_cols{$_}} == 1 } (keys %seen_cols),
+  ];
+
   COLUMN:
   foreach my $col (@$colnames) {
-    my ($alias, $colname) = $col =~ m/^ (?: ([^$sep]+) $sep)? (.+) $/x;
+    my ($alias, $colname) = $col =~ m/^ (?: ([^$qsep]+) $qsep)? (.+) $/x;
 
     unless ($alias) {
       # see if the column was seen exactly once (so we know which rsrc it came from)

Modified: DBIx-Class/0.08/trunk/t/prefetch/grouped.t
===================================================================
--- DBIx-Class/0.08/trunk/t/prefetch/grouped.t	2009-11-16 17:04:03 UTC (rev 7917)
+++ DBIx-Class/0.08/trunk/t/prefetch/grouped.t	2009-11-16 18:15:45 UTC (rev 7918)
@@ -217,11 +217,11 @@
     $rs->as_query,
     '(
       SELECT me.cdid, me.artist, me.title, me.year, me.genreid, me.single_track,
-             tags.tagid, tags.cd, tags.tag 
+             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
+          GROUP BY me.cdid, me.artist, me.title, me.year, me.genreid, me.single_track, cdid
           ORDER BY cdid
         ) me
         LEFT JOIN tags tags ON tags.cd = me.cdid
@@ -329,4 +329,28 @@
     );
 }
 
+{
+    my $rs = $schema->resultset('CD')->search({},
+        {
+           '+select' => [{ count => 'tags.tag' }],
+           '+as' => ['test_count'],
+           prefetch => ['tags'],
+           distinct => 1,
+           order_by => {'-asc' => 'tags.tag'},
+           rows => 1
+        }
+    );
+    is_same_sql_bind($rs->as_query, q{
+        (SELECT me.cdid, me.artist, me.title, me.year, me.genreid, me.single_track, me.test_count, tags.tagid, tags.cd, tags.tag
+          FROM (SELECT me.cdid, me.artist, me.title, me.year, me.genreid, me.single_track, COUNT( tags.tag ) AS test_count
+                FROM cd me LEFT JOIN tags tags ON tags.cd = me.cdid
+            GROUP BY me.cdid, me.artist, me.title, me.year, me.genreid, me.single_track, tags.tag
+            ORDER BY tags.tag ASC LIMIT 1)
+            me
+          LEFT JOIN tags tags ON tags.cd = me.cdid
+         ORDER BY tags.tag ASC, tags.cd, tags.tag
+        )
+    }, []);
+}
+
 done_testing;

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