From: Justin Hunter <justin.d.hunter@gmail.com>
Date: Fri, 13 Mar 2009 04:20:32 +0000 (+0000)
Subject: created count_distinct branch
X-Git-Url: http://git.shadowcat.co.uk/gitweb/gitweb.cgi?a=commitdiff_plain;h=e284619ffc1be06fcf967a32f3c1af92bf261ee8;p=dbsrgits%2FDBIx-Class-Historic.git

created count_distinct branch
---

diff --git a/lib/DBIx/Class/ResultSet.pm b/lib/DBIx/Class/ResultSet.pm
index 5969744..f4ac871 100644
--- a/lib/DBIx/Class/ResultSet.pm
+++ b/lib/DBIx/Class/ResultSet.pm
@@ -1128,11 +1128,11 @@ sub count {
 
 sub _count { # Separated out so pager can get the full count
   my $self = shift;
-  my $select = { count => '*' };
-
   my $attrs = { %{$self->_resolved_attrs} };
-  if (my $group_by = delete $attrs->{group_by}) {
+
+  if (my $group_by = $attrs->{group_by}) {
     delete $attrs->{having};
+    delete $attrs->{order_by};
     my @distinct = (ref $group_by ?  @$group_by : ($group_by));
     # todo: try CONCAT for multi-column pk
     my @pk = $self->result_source->primary_columns;
@@ -1146,15 +1146,17 @@ sub _count { # Separated out so pager can get the full count
       }
     }
 
-    $select = { count => { distinct => \@distinct } };
+    $attrs->{select} = $group_by; 
+    $attrs->{from} = (ref $self)->new($self->result_source, $attrs)->cursor->as_query;
   }
 
-  $attrs->{select} = $select;
+  $attrs->{select} = { count => '*' };
   $attrs->{as} = [qw/count/];
 
-  # offset, order by and page are not needed to count. record_filter is cdbi
-  delete $attrs->{$_} for qw/rows offset order_by page pager record_filter/;
+  # offset, order by, group by, where and page are not needed to count. record_filter is cdbi
+  delete $attrs->{$_} for qw/rows offset order_by group_by where page pager record_filter/;
 
+  $self->result_source->resultset;
   my $tmp_rs = (ref $self)->new($self->result_source, $attrs);
   my ($count) = $tmp_rs->cursor->next;
   return $count;
diff --git a/lib/DBIx/Class/Storage/DBI.pm b/lib/DBIx/Class/Storage/DBI.pm
index 4bfa2e8..09dc92a 100644
--- a/lib/DBIx/Class/Storage/DBI.pm
+++ b/lib/DBIx/Class/Storage/DBI.pm
@@ -95,9 +95,19 @@ sub _find_syntax {
 
 sub select {
   my ($self, $table, $fields, $where, $order, @rest) = @_;
+  local $self->{having_bind} = [];
   if (ref $table eq 'SCALAR') {
     $table = $$table;
   }
+  elsif (ref $table eq 'HASH') {
+    ## what if they want to alias a sub query?
+  }
+  elsif (ref $table eq 'REF') {
+    #my ($sql, @bind) = @{${$t}}; push(@{$self->{having_bind}}, @bind;);
+    my $t = $table; 
+    $table = shift @$$t;
+    while (my $b = shift @$$t) { push @{$self->{having_bind}}, $b; }
+  }
   elsif (not ref $table) {
     $table = $self->_quote($table);
   }
@@ -106,7 +116,6 @@ sub select {
   @rest = (-1) unless defined $rest[0];
   die "LIMIT 0 Does Not Compute" if $rest[0] == 0;
     # and anyway, SQL::Abstract::Limit will cause a barf if we don't first
-  local $self->{having_bind} = [];
   my ($sql, @ret) = $self->SUPER::select(
     $table, $self->_recurse_fields($fields), $where, $order, @rest
   );