Method: Praxis::ResourceDefinition::ClassMethods#parent

Defined in:
lib/praxis/resource_definition.rb

#parent(parent = nil, **mapping) ⇒ Object 



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# File 'lib/praxis/resource_definition.rb', line 102

def parent(parent=nil, **mapping)
  return @parent if parent.nil?

  @routing_prefix = nil # reset routing_prefix

  parent_action = parent.canonical_path
  parent_route = parent_action.primary_route.path

  # if a mapping is passed, it *must* resolve any param name conflicts
  unless mapping.any?
    # assume last capture is the relevant one to replace
    # if not... then I quit.
    parent_param_name = parent_route.names.last

    # more assumptions about names
    parent_name = parent.name.demodulize.underscore.singularize

    # put it together to find what we should call this new param
    param = "#{parent_name}_#{parent_param_name}".to_sym
    mapping[parent_param_name.to_sym] = param
  end

  # complete the mapping and massage the route
  parent_route.names.collect(&:to_sym).each do |name|
    if mapping.key?(name)
      param = mapping[name]
      # FIXME: this won't handle URI Template type paths, ie '/{parent_id}'
      prefixed_path = parent_action.primary_route.prefixed_path
      @parent_prefix = prefixed_path.gsub(/(:)(#{name})(\W+|$)/, "\\1#{param.to_s}\\3")
    else
      mapping[name] = name
    end
  end

  self.on_finalize do
    self.inherit_params_from_parent(parent_action, **mapping)
  end

  @parent = parent
end