1 files changed, 29 insertions, 0 deletions
diff --git a/lib/active_relation/relations/insertion_relation.rb b/lib/active_relation/relations/insertion_relation.rb
new file mode 100644
index 0000000000..84752d13f9
--- /dev/null
+++ b/lib/active_relation/relations/insertion_relation.rb
@@ -0,0 +1,29 @@
+class InsertionRelation < CompoundRelation
+  attr_reader :relation, :tuple
+  
+  def initialize(relation, tuple)
+    @relation, @tuple = relation, tuple
+  end
+  
+  def to_sql(builder = InsertBuilder.new)
+    builder.call do
+      insert
+      into table
+      columns do
+        tuple.keys.each { |attribute| attribute.to_sql(self) }
+      end
+      values do
+        inserts.each { |insert| insert.to_sql(self) }
+      end
+    end
+  end
+
+  def ==(other)
+    relation == other.relation and tuple == other.tuple
+  end
+  
+  protected
+  def inserts
+    relation.inserts + [tuple]
+  end
+end
+\ No newline at end of file