class ActionController::Parameters
Constants
- EMPTY_HASH
Public Instance Methods
moderate(controller_name, action, *filters)
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# File lib/moderate_params/moderate_strong_params.rb, line 5 def moderate(controller_name, action, *filters) params = self.class.new filters.each do |filter| case filter when Symbol, String permitted_scalar_filter(params, filter) when Hash cust_hash_filter(params, filter, controller_name, action) end end unpermitted_parameters!(params) custom_logging(params, controller_name, action) permit! end
Private Instance Methods
cust_hash_filter(params, filter, controller_name, action)
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# File lib/moderate_params/moderate_strong_params.rb, line 39 def cust_hash_filter(params, filter, controller_name, action) filter = filter.with_indifferent_access # Slicing filters out non-declared keys. slice(*filter.keys).each do |key, value| next unless value next unless has_key? key if filter[key] == EMPTY_ARRAY # Declaration { comment_ids: [] }. array_of_permitted_scalars?(self[key]) do |val| params[key] = val end elsif filter[key] == EMPTY_HASH # Declaration { preferences: {} }. if value.is_a?(Parameters) params[key] = permit_any_in_parameters(value) end elsif non_scalar?(value) # Declaration { user: :name } or { user: [:name, :age, { address: ... }] }. params[key] = each_element(value) do |element| element.instance_variable_set '@context', "Parent #{key}" element.moderate(controller_name, action, *Array.wrap(filter[key])) end end end end
custom_logging(params, controller_name, action)
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# File lib/moderate_params/moderate_strong_params.rb, line 24 def custom_logging(params, controller_name, action) unpermitted_keys(params).each do |k| ActiveSupport::Notifications.instrument('moderate_params') do |payload| payload[:controller] = controller_name payload[:action] = action payload[:message] = "#{@context || 'Top Level'} is missing: #{k}" end end end
non_scalar?(value)
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# File lib/moderate_params/moderate_strong_params.rb, line 34 def non_scalar?(value) value.is_a?(Array) || value.is_a?(Parameters) end