method
default_controller_and_action
v4.1.8 -
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Class: ActionDispatch::Routing::Mapper::Mapping
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default_controller_and_action()
private
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# File actionpack/lib/action_dispatch/routing/mapper.rb, line 208 def default_controller_and_action if to.respond_to?(:call) { } else if to.is_a?(String) controller, action = to.split('#') elsif to.is_a?(Symbol) action = to.to_s end controller ||= default_controller action ||= default_action if @scope[:module] && !controller.is_a?(Regexp) if controller =~ %{\A/} controller = controller[1..-1] else controller = [@scope[:module], controller].compact.join("/").presence end end if controller.is_a?(String) && controller =~ %{\A/} raise ArgumentError, "controller name should not start with a slash" end controller = controller.to_s unless controller.is_a?(Regexp) action = action.to_s unless action.is_a?(Regexp) if controller.blank? && segment_keys.exclude?(:controller) message = "Missing :controller key on routes definition, please check your routes." raise ArgumentError, message end if action.blank? && segment_keys.exclude?(:action) message = "Missing :action key on routes definition, please check your routes." raise ArgumentError, message end if controller.is_a?(String) && controller !~ /\A[a-z_0-9\/]*\z/ message = "'#{controller}' is not a supported controller name. This can lead to potential routing problems." message << " See http://guides.rubyonrails.org/routing.html#specifying-a-controller-to-use" raise ArgumentError, message end hash = {} hash[:controller] = controller unless controller.blank? hash[:action] = action unless action.blank? hash end end