class UnpermittedParameters

Ruby on Rails 5.2.8.1

Since v4.0.13

Available in: v4.0.13 v4.1.16 v4.2.9 v5.2.8.1 v6.0.6 v6.1.7.10 v7.0.10 v7.1.6 v7.2.3 v8.0.4 v8.1.2

Compare with:

Raised when a supplied parameter is not expected and ActionController::Parameters.action_on_unpermitted_parameters is set to :raise.

params = ActionController::Parameters.new(a: "123", b: "456")
params.permit(:c)
# => ActionController::UnpermittedParameters: found unpermitted parameters: :a, :b

Inherits from

IndexError