Add ActiveModel::Errors#delete, which was not available after move to use delegation

1 files changed, 5 insertions, 0 deletions

diff --git a/activemodel/lib/active_model/errors.rb b/activemodel/lib/active_model/errors.rb
index 025915fe6f..c6535082d3 100644
--- a/activemodel/lib/active_model/errors.rb
+++ b/activemodel/lib/active_model/errors.rb
@@ -99,6 +99,11 @@ module ActiveModel
       messages[key] = value
     end
 
+    # Delete messages for +key+
+    def delete(key)
+      messages.delete(key)
+    end
+
     # When passed a symbol or a name of a method, returns an array of errors
     # for the method.
     #