diff options
| -rw-r--r-- | actionpack/lib/action_controller/metal/strong_parameters.rb | 3 | ||||
| -rw-r--r-- | actionpack/test/controller/parameters/accessors_test.rb | 8 |
2 files changed, 10 insertions, 1 deletions
diff --git a/actionpack/lib/action_controller/metal/strong_parameters.rb b/actionpack/lib/action_controller/metal/strong_parameters.rb index 75ca282804..4789252550 100644 --- a/actionpack/lib/action_controller/metal/strong_parameters.rb +++ b/actionpack/lib/action_controller/metal/strong_parameters.rb @@ -590,7 +590,8 @@ module ActionController # params2 = ActionController::Parameters.new(foo: [10, 11, 12]) # params2.dig(:foo, 1) # => 11 def dig(*keys) - convert_value_to_parameters(@parameters.dig(*keys)) + convert_hashes_to_parameters(keys.first, @parameters[keys.first]) + @parameters.dig(*keys) end # Returns a new <tt>ActionController::Parameters</tt> instance that diff --git a/actionpack/test/controller/parameters/accessors_test.rb b/actionpack/test/controller/parameters/accessors_test.rb index 07a897a103..674b2c6266 100644 --- a/actionpack/test/controller/parameters/accessors_test.rb +++ b/actionpack/test/controller/parameters/accessors_test.rb @@ -284,4 +284,12 @@ class ParametersAccessorsTest < ActiveSupport::TestCase value.is_a?(ActionController::Parameters) end end + + test "mutating #dig return value mutates underlying parameters" do + @params.dig(:person, :name)[:first] = "Bill" + assert_equal "Bill", @params.dig(:person, :name, :first) + + @params.dig(:person, :addresses)[0] = { city: "Boston", state: "Massachusetts" } + assert_equal "Boston", @params.dig(:person, :addresses, 0, :city) + end end |