diff options
Diffstat (limited to 'activerecord/lib/active_record/associations/has_many_through_association.rb')
-rw-r--r-- | activerecord/lib/active_record/associations/has_many_through_association.rb | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/activerecord/lib/active_record/associations/has_many_through_association.rb b/activerecord/lib/active_record/associations/has_many_through_association.rb index b75de4d23f..3d60da76b3 100644 --- a/activerecord/lib/active_record/associations/has_many_through_association.rb +++ b/activerecord/lib/active_record/associations/has_many_through_association.rb @@ -100,6 +100,16 @@ module ActiveRecord def sum(*args, &block) calculate(:sum, *args, &block) end + + def count(*args) + column_name, options = @reflection.klass.send(:construct_count_options_from_args, *args) + if @reflection.options[:uniq] + # This is needed becase 'SELECT count(DISTINCT *)..' is not valid sql statement. + column_name = "#{@reflection.klass.table_name}.#{@reflection.klass.primary_key}" if column_name == :all + options.merge!(:distinct => true) + end + @reflection.klass.send(:with_scope, construct_scope) { @reflection.klass.count(column_name, options) } + end protected def method_missing(method, *args, &block) |