Module: ActionController::Helpers::ClassMethods
Relationships & Source Files | |
Defined in: | actionpack/lib/action_controller/metal/helpers.rb |
Instance Method Summary
-
#helper_attr(*attrs)
Declares helper accessors for controller attributes.
-
#helpers
Provides a proxy to access helper methods from outside the view.
-
#modules_for_helpers(args)
Override modules_for_helpers to accept
:all
as argument, which loads all helpers in helpers_path.
Instance Method Details
#helper_attr(*attrs)
Declares helper accessors for controller attributes. For example, the following adds new name
and name=
instance methods to a controller and makes them available to the view:
attr_accessor :name
helper_attr :name
Parameters
-
attrs
- Names of attributes to be converted into helpers.
# File 'actionpack/lib/action_controller/metal/helpers.rb', line 78
def helper_attr(*attrs) attrs.flatten.each { |attr| helper_method(attr, "#{attr}=") } end
#helpers
Provides a proxy to access helper methods from outside the view.
Note that the proxy is rendered under a different view context. This may cause incorrect behavior with capture methods. Consider using helper instead when using capture
.
# File 'actionpack/lib/action_controller/metal/helpers.rb', line 88
def helpers @helper_proxy ||= begin proxy = ActionView::Base.empty proxy.config = config.inheritable_copy proxy.extend(_helpers) end end
#modules_for_helpers(args)
Override modules_for_helpers to accept :all
as argument, which loads all helpers in helpers_path.
Parameters
-
args
- A list of helpers
Returns
-
array
- A normalized list of modules for the list of helpers provided.
# File 'actionpack/lib/action_controller/metal/helpers.rb', line 104
def modules_for_helpers(args) args += all_application_helpers if args.delete(:all) super(args) end