Add methods to StrongParameters

It's reasonable to expose different value readers.

2 files changed, 9 insertions, 2 deletions

diff --git a/actionpack/lib/action_controller/metal/strong_parameters.rb b/actionpack/lib/action_controller/metal/strong_parameters.rb
index 043f69b7bc..70b34c2756 100644
--- a/actionpack/lib/action_controller/metal/strong_parameters.rb
+++ b/actionpack/lib/action_controller/metal/strong_parameters.rb
@@ -109,7 +109,7 @@ module ActionController
     cattr_accessor :permit_all_parameters, instance_accessor: false
     cattr_accessor :action_on_unpermitted_parameters, instance_accessor: false
 
-    delegate :keys, :key?, :has_key?, :empty?, :include?, :inspect,
+    delegate :keys, :key?, :has_key?, :values, :has_value?, :value?, :empty?, :include?, :inspect,
       :as_json, to: :@parameters
 
     # By default, never raise an UnpermittedParameters exception if these
diff --git a/actionpack/test/controller/required_params_test.rb b/actionpack/test/controller/required_params_test.rb
index 129a713564..b6efcd6f9a 100644
--- a/actionpack/test/controller/required_params_test.rb
+++ b/actionpack/test/controller/required_params_test.rb
@@ -66,7 +66,14 @@ class ParametersRequireTest < ActiveSupport::TestCase
     end
   end
 
-  test "Deprecated method are deprecated" do
+  test "value params" do
+    params = ActionController::Parameters.new(foo: "bar", dog: "cinco")
+    assert_equal ["bar", "cinco"], params.values
+    assert params.has_value?("cinco")
+    assert params.value?("cinco")
+  end
+
+  test "Deprecated methods are deprecated" do
     assert_deprecated do
       ActionController::Parameters.new(foo: "bar").merge!({bar: "foo"})
     end