覆盖DeviseController基类 - Rails 4,Devise 3 [英] Override DeviseController base class - Rails 4, Devise 3
问题描述
我试图覆盖Devise方法 set_flash_message
。 Devise文档涵盖了如何覆盖各种子模块的控制器。
I am trying to override the Devise method set_flash_message
. Devise documentation covers how to override controllers for the various submodules.
但是这个特定的方法位于 DeviseController
,所有模块的父类。
However this particular method is located within DeviseController
, the parent class of all the modules.
文档(维基和内联)都不了解如何实现此目的,所以我不知道如何最好地进行。我相信最好的方法是简单地重新打开类并根据需要修改方法,并且我将一个文件放在 / lib
中。但是,似乎在Devise之前加载,导致错误发生。
The documentation (both wiki and inline) says nothing about how to achieve this, so I'm not sure how best to proceed. I believe the best approach would be to simply re-open the class and modify the method as needed, and I placed a file in /lib
to that effect. However it appears that is getting loaded prior to Devise, resulting in error spew.
NameError in Devise::RegistrationsController#new
undefined local variable or method `require_no_authentication' for #<Devise::RegistrationsController>
DeviseController
的复杂父级定义也可以具有净负面影响:
The complex parent definition for DeviseController
may also be having an net negative effect:
class DeviseController < Devise.parent_controller.constantize
想法?
推荐答案
我相信这是覆盖Devise控制器的语法:
I believe this is the syntax to override Devise controllers:
class RegistrationsController < Devise::RegistrationsController
如果你收到方法错误,你需要记住这不会完全覆盖控制器 - 您的方法将被从主设计控制器委派,所以你可以使用这样的东西:
If you're receiving method errors, you need to remember this won't totally overwrite the controller - your methods will be delegated to from the "main" devise controller, so you can use things like this:
def method
super
your_code_here
end
更新
class SessionsController < DeviseController
prepend_before_filter :require_no_authentication, :only => [ :new, :create ]
prepend_before_filter :allow_params_authentication!, :only => :create
prepend_before_filter { request.env["devise.skip_timeout"] = true }
prepend_view_path 'app/views/devise'
# GET /resource/sign_in
def new
self.resource = resource_class.new(sign_in_params)
clean_up_passwords(resource)
respond_with(resource, serialize_options(resource))
end
# POST /resource/sign_in
def create
self.resource = warden.authenticate!(auth_options)
set_flash_message(:notice, :signed_in) if is_navigational_format?
sign_in(resource_name, resource)
respond_to do |format|
format.json { render :json => {}, :status => :ok }
format.html { respond_with resource, :location => after_sign_in_path_for(resource) }
end
end
# DELETE /resource/sign_out
def destroy
redirect_path = after_sign_out_path_for(resource_name)
signed_out = (Devise.sign_out_all_scopes ? sign_out : sign_out(resource_name))
set_flash_message :notice, :signed_out if signed_out && is_navigational_format?
# We actually need to hardcode this as Rails default responder doesn't
# support returning empty response on GET request
respond_to do |format|
format.all { head :no_content }
format.any(*navigational_formats) { redirect_to redirect_path }
end
end
protected
def sign_in_params
devise_parameter_sanitizer.sanitize(:sign_in)
end
def serialize_options(resource)
methods = resource_class.authentication_keys.dup
methods = methods.keys if methods.is_a?(Hash)
methods << :password if resource.respond_to?(:password)
{ :methods => methods, :only => [:password] }
end
def auth_options
{ :scope => resource_name, :recall => "#{controller_path}#new" }
end
end
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