Module: ActionController::ParamsWrapper::ClassMethods

Defined in:
actionpack/lib/action_controller/metal/params_wrapper.rb

Instance Method Summary collapse

Instance Method Details

#_set_wrapper_options(options) ⇒ Object


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# File 'actionpack/lib/action_controller/metal/params_wrapper.rb', line 165

def _set_wrapper_options(options)
  self._wrapper_options = Options.from_hash(options)
end

#inherited(klass) ⇒ Object

Sets the default wrapper key or model which will be used to determine wrapper key and attribute names. Will be called automatically when the module is inherited.


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# File 'actionpack/lib/action_controller/metal/params_wrapper.rb', line 220

def inherited(klass)
  if klass._wrapper_options.format.any?
    params = klass._wrapper_options.dup
    params.klass = klass
    klass._wrapper_options = params
  end
  super
end

#wrap_parameters(name_or_model_or_options, options = {}) ⇒ Object

Sets the name of the wrapper key, or the model which ParamsWrapper would use to determine the attribute names from.

Examples

wrap_parameters format: :xml
  # enables the parameter wrapper for XML format

wrap_parameters :person
  # wraps parameters into +params[:person]+ hash

wrap_parameters Person
  # wraps parameters by determining the wrapper key from Person class
  (+person+, in this case) and the list of attribute names

wrap_parameters include: [:username, :title]
  # wraps only +:username+ and +:title+ attributes from parameters.

wrap_parameters false
  # disables parameters wrapping for this controller altogether.

Options

  • :format - The list of formats in which the parameters wrapper will be enabled.

  • :include - The list of attribute names which parameters wrapper will wrap into a nested hash.

  • :exclude - The list of attribute names which parameters wrapper will exclude from a nested hash.


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# File 'actionpack/lib/action_controller/metal/params_wrapper.rb', line 196

def wrap_parameters(name_or_model_or_options, options = {})
  model = nil

  case name_or_model_or_options
  when Hash
    options = name_or_model_or_options
  when false
    options = options.merge(:format => [])
  when Symbol, String
    options = options.merge(:name => name_or_model_or_options)
  else
    model = name_or_model_or_options
  end

  opts   = Options.from_hash _wrapper_options.to_h.slice(:format).merge(options)
  opts.model = model
  opts.klass = self

  self._wrapper_options = opts
end