diff options
Diffstat (limited to 'activerecord/lib/active_record/relation/finder_methods.rb')
-rw-r--r-- | activerecord/lib/active_record/relation/finder_methods.rb | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/activerecord/lib/active_record/relation/finder_methods.rb b/activerecord/lib/active_record/relation/finder_methods.rb index fe1ef2e2e3..e9e9c85122 100644 --- a/activerecord/lib/active_record/relation/finder_methods.rb +++ b/activerecord/lib/active_record/relation/finder_methods.rb @@ -171,14 +171,16 @@ module ActiveRecord def exists?(id = nil) id = id.id if ActiveRecord::Base === id + relation = select(primary_key).limit(1) + case id when Array, Hash - where(id).exists? + relation = relation.where(id) else - relation = select(primary_key).limit(1) relation = relation.where(primary_key.eq(id)) if id - relation.first ? true : false end + + relation.first ? true : false end protected @@ -222,7 +224,7 @@ module ActiveRecord end def construct_limited_ids_condition(relation) - orders = relation.order_values.join(", ") + orders = relation.order_values values = @klass.connection.distinct("#{@klass.connection.quote_table_name @klass.table_name}.#{@klass.primary_key}", orders) ids_array = relation.select(values).collect {|row| row[@klass.primary_key]} |