Module: Dunlop::ActiveClassHelper

Included in:
ApplicationHelper
Defined in:
app/helpers/dunlop/active_class_helper.rb

Instance Method Summary collapse

Instance Method Details

#active_class(*route_specs) ⇒ Object

Return active or nil based on the given route spec

%li{ class: active_class('users') # true if controller is users, false otherwise
%li{ class: active_class('pages#about') # true if controller is pages and action is about



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# File 'app/helpers/dunlop/active_class_helper.rb', line 5

def active_class(*route_specs)
  options = route_specs.extract_options!
  return nil if Array.wrap(options[:except]).any?{|exception| current_route_spec?(exception) }
  return 'active' if route_specs.any?{|rs| current_route_spec?(rs, options) }
  nil
end

#current_route_spec?(route_spec, options = {}) ⇒ Boolean

Check if the current route matches the route given as argument. The syntax is meant to be a bit similar to specifying routes in ‘config/routes.rb`.

current_route_spec?('products') #=> true if controller name is products, false otherwise
current_route_spec?('products#show') #=> true if controller_name is products AND action_name is show
current_route_spec?('#show') #=> true if action_name is show, false otherwise

NOTE: this helper is tested through the active_class helper

Returns:

  • (Boolean) 


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# File 'app/helpers/dunlop/active_class_helper.rb', line 19

def current_route_spec?(route_spec, options = {})
  return route_spec.match([controller_path, action_name].join('#')) if route_spec.is_a?(Regexp)
  controller, action = route_spec.split('#')
  return action == params[:id] if controller_path == 'high_voltage/pages'
  actual_controller_parts = controller_path.split('/')
  if controller #and controller_path == controller
    tested_controller_parts = controller.split('/')
    return if tested_controller_parts.size > actual_controller_parts.size
    if actual_controller_parts[0...tested_controller_parts.size] == tested_controller_parts
      # controller spec matches
      return true unless action
      action_name == action
    end
  else
    action_name == action
  end
end