5 files changed, 4 insertions, 22 deletions
diff --git a/activemodel/CHANGELOG.md b/activemodel/CHANGELOG.md
index b1d33c8692..09e6ede064 100644
--- a/activemodel/CHANGELOG.md
+++ b/activemodel/CHANGELOG.md
@@ -19,11 +19,6 @@
 
     *Roberto Vasquez Angel*
 
-*   Added `ActiveModel::Errors#add_on_present` method. Adds error messages to
-    present attributes.
-
-    *Roberto Vasquez Angel*
-
 *   `[attribute]_changed?` now returns `false` after a call to `reset_[attribute]!`
 
     *Renato Mascarenhas*
diff --git a/activemodel/lib/active_model/errors.rb b/activemodel/lib/active_model/errors.rb
index b713e99e25..963e52bff3 100644
--- a/activemodel/lib/active_model/errors.rb
+++ b/activemodel/lib/active_model/errors.rb
@@ -328,19 +328,6 @@ module ActiveModel
       end
     end
 
-    # Will add an error message to each of the attributes in +attributes+ that
-    # is present (using Object#present?).
-    #
-    #   person.errors.add_on_present(:name)
-    #   person.errors.messages
-    #   # => { :name => ["must be blank"] }
-    def add_on_present(attributes, options = {})
-      Array(attributes).flatten.each do |attribute|
-        value = @base.send(:read_attribute_for_validation, attribute)
-        add(attribute, :not_blank, options) if value.present?
-      end
-    end
-
     # Returns +true+ if an error on the attribute with the given message is
     # present, +false+ otherwise. +message+ is treated the same as for +add+.
     #
diff --git a/activemodel/lib/active_model/locale/en.yml b/activemodel/lib/active_model/locale/en.yml
index 8ea34b84f5..540e8132d3 100644
--- a/activemodel/lib/active_model/locale/en.yml
+++ b/activemodel/lib/active_model/locale/en.yml
@@ -13,7 +13,7 @@ en:
       accepted: "must be accepted"
       empty: "can't be empty"
       blank: "can't be blank"
-      not_blank: "must be blank"      
+      present: "must be blank"
       too_long: "is too long (maximum is %{count} characters)"
       too_short: "is too short (minimum is %{count} characters)"
       wrong_length: "is the wrong length (should be %{count} characters)"
diff --git a/activemodel/lib/active_model/validations/absence.rb b/activemodel/lib/active_model/validations/absence.rb
index 6790554907..1a1863370b 100644
--- a/activemodel/lib/active_model/validations/absence.rb
+++ b/activemodel/lib/active_model/validations/absence.rb
@@ -2,8 +2,8 @@ module ActiveModel
   module Validations
     # == Active Model Absence Validator
     class AbsenceValidator < EachValidator #:nodoc:
-      def validate(record)
-        record.errors.add_on_present(attributes, options)
+      def validate_each(record, attr_name, value)
+        record.errors.add(attr_name, :present, options) if value.present?
       end
     end
 
diff --git a/activemodel/lib/active_model/validator.rb b/activemodel/lib/active_model/validator.rb
index ff3dfa01c8..d51f4d1936 100644
--- a/activemodel/lib/active_model/validator.rb
+++ b/activemodel/lib/active_model/validator.rb
@@ -110,7 +110,7 @@ module ActiveModel
     # Return the kind for this validator.
     #
     #   PresenceValidator.new.kind   # => :presence
-    #   UniquenessValidator.new.kind # => :uniqueness 
+    #   UniquenessValidator.new.kind # => :uniqueness
     def kind
       self.class.kind
     end