Module: Attributarchy::ControllerMethods::ClassMethods

Defined in:
lib/attributarchy/controller_methods.rb

Instance Method Summary collapse

Instance Method Details

#has_attributarchy(name, arguments = {}) ⇒ Object

Raises:

  • (ArgumentErorr) 


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# File 'lib/attributarchy/controller_methods.rb', line 16

def has_attributarchy(name, arguments = {})
  ### Check attribute configuration.
  raise ArgumentErorr, 'No attributarchy specified' \
    unless arguments.is_a?(Hash) && arguments.has_key?(:as)
  attributes = arguments[:as]
  raise ArgumentError, 'Expecting attributarchy (an array of symbols representing attributes)' \
    unless attributes.is_a? Array
  raise ArgumentError, 'Attributarchy cannot be empty' \
    if attributes.empty?
  raise ArgumentError, 'Attributarchy should be specified using symbols' \
    unless attributes.all? { |a| a.is_a? Symbol }
  ### Lookup prefixes (optional). Always include controller.
  lookup_prefixes = [controller_name]
  if arguments.has_key?(:in)
    additional_lookup_prefixes = arguments[:in]
    raise ArgumentError, 'Lookup prefixes must be specified as a string or array' \
      unless [Array, String].any? { |type| additional_lookup_prefixes.is_a?(type) }
    lookup_prefixes << additional_lookup_prefixes
  end
  lookup_prefixes.flatten!
  lookup_prefixes.map! { |prefix|
    prefix = "app/views/#{prefix}" unless prefix[0] == '/'
    prefix
  }
  prepend_view_path(lookup_prefixes)
  ### Group-only attributes that do not render (optional).
  without_rendering = {}
  if arguments.has_key?(:without_rendering)
    without_rendering = arguments[:without_rendering]
    raise ArgumentError, ':without_rendering must be specified as a symbol or array' \
      unless [Array, Symbol].any? { |type| without_rendering.is_a?(type) }
    without_rendering = Hash[*[without_rendering].flatten.map { |k| [k, nil] }.flatten]
  end
  ### Set configuration
  self.attributarchy_configuration ||= {}
  self.attributarchy_configuration[name] = attributes
  self.attributarchy_configuration[:without_rendering] = without_rendering
end