1 files changed, 34 insertions, 0 deletions
diff --git a/activerecord/lib/active_record/associations/class_methods/join_dependency/join_base.rb b/activerecord/lib/active_record/associations/class_methods/join_dependency/join_base.rb
new file mode 100644
index 0000000000..ed05003f66
--- /dev/null
+++ b/activerecord/lib/active_record/associations/class_methods/join_dependency/join_base.rb
@@ -0,0 +1,34 @@
+module ActiveRecord
+  module Associations
+    module ClassMethods
+      class JoinDependency # :nodoc:
+        class JoinBase < JoinPart # :nodoc:
+          # Extra joins provided when the JoinDependency was created
+          attr_reader :table_joins
+
+          def initialize(active_record, joins = nil)
+            super(active_record)
+            @table_joins = joins
+          end
+
+          def ==(other)
+            other.class == self.class &&
+              other.active_record == active_record
+          end
+
+          def aliased_prefix
+            "t0"
+          end
+
+          def table
+            Arel::Table.new(table_name, :engine => arel_engine, :columns => active_record.columns)
+          end
+
+          def aliased_table_name
+            active_record.table_name
+          end
+        end
+      end
+    end
+  end
+end