diff options
Diffstat (limited to 'actionpack/lib/action_controller/metal/strong_parameters.rb')
-rw-r--r-- | actionpack/lib/action_controller/metal/strong_parameters.rb | 40 |
1 files changed, 26 insertions, 14 deletions
diff --git a/actionpack/lib/action_controller/metal/strong_parameters.rb b/actionpack/lib/action_controller/metal/strong_parameters.rb index b4948d99a8..48a916f2b1 100644 --- a/actionpack/lib/action_controller/metal/strong_parameters.rb +++ b/actionpack/lib/action_controller/metal/strong_parameters.rb @@ -3,6 +3,7 @@ require 'active_support/core_ext/array/wrap' require 'active_support/rescuable' require 'action_dispatch/http/upload' require 'stringio' +require 'set' module ActionController # Raised when a required parameter is missing. @@ -125,6 +126,13 @@ module ActionController @permitted = self.class.permit_all_parameters end + # Attribute that keeps track of converted arrays, if any, to avoid double + # looping in the common use case permit + mass-assignment. Defined in a + # method to instantiate it only if needed. + def converted_arrays + @converted_arrays ||= Set.new + end + # Returns +true+ if the parameter is permitted, +false+ otherwise. # # params = ActionController::Parameters.new @@ -149,8 +157,10 @@ module ActionController # Person.new(params) # => #<Person id: nil, name: "Francesco"> def permit! each_pair do |key, value| - convert_hashes_to_parameters(key, value) - self[key].permit! if self[key].respond_to? :permit! + value = convert_hashes_to_parameters(key, value) + Array.wrap(value).each do |_| + _.permit! if _.respond_to? :permit! + end end @permitted = true @@ -284,14 +294,7 @@ module ActionController # params.fetch(:none, 'Francesco') # => "Francesco" # params.fetch(:none) { 'Francesco' } # => "Francesco" def fetch(key, *args) - value = super - # Don't rely on +convert_hashes_to_parameters+ - # so as to not mutate via a +fetch+ - if value.is_a?(Hash) - value = self.class.new(value) - value.permit! if permitted? - end - value + convert_hashes_to_parameters(key, super, false) rescue KeyError raise ActionController::ParameterMissing.new(key) end @@ -329,12 +332,21 @@ module ActionController end private - def convert_hashes_to_parameters(key, value) - if value.is_a?(Parameters) || !value.is_a?(Hash) + def convert_hashes_to_parameters(key, value, assign_if_converted=true) + converted = convert_value_to_parameters(value) + self[key] = converted if assign_if_converted && !converted.equal?(value) + converted + end + + def convert_value_to_parameters(value) + if value.is_a?(Array) && !converted_arrays.member?(value) + converted = value.map { |_| convert_value_to_parameters(_) } + converted_arrays << converted + converted + elsif value.is_a?(Parameters) || !value.is_a?(Hash) value else - # Convert to Parameters on first access - self[key] = self.class.new(value) + self.class.new(value) end end |