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Exception: ActionController::ExpectedParameterMissing

Relationships & Source Files
Super Chains via Extension / Inclusion / Inheritance
Class Chain:
self, ParameterMissing, KeyError
Instance Chain:
self, ParameterMissing, DidYouMean::Correctable, KeyError
Inherits: ActionController::ParameterMissing
Defined in: actionpack/lib/action_controller/metal/strong_parameters.rb

Overview

Raised from expect! when an expected parameter is missing or is of an incompatible type.

params = ActionController::Parameters.new(a: {})
params.expect!(:a)
# => ActionController::ExpectedParameterMissing: param is missing or the value is empty or invalid: a

Class Method Summary

ParameterMissing - Inherited

.new

Instance Attribute Summary

ParameterMissing - Inherited

#keys, #param

Instance Method Summary

ParameterMissing - Inherited

#corrections

Constructor Details

This class inherits a constructor from ActionController::ParameterMissing