Rails 4 before filter vs before action

Question

In rails  4 0 0 generators creates CRUD operations with before action not before filter  It seems to do the same thing  So what s the difference between these two

User · Accepted Answer

As we can see in ActionController  Base  before action is just a new syntax for before filter   However all before filters syntax are deprecated in Rails 5 0 and will be removed in Rails 5 1

User · Answer

To figure out what is the difference between before action and before filter  we should understand the difference between action and filter   An action is a method of a controller to which you can route to  For example  your user creation page might be routed to UsersController new - new is the action in this route   Filters run in respect to controller actions - before  after or around them  These methods can halt the action processing by redirecting or set up common data to every action in the controller      Rails 4       action      Rails 3       filter

User · Answer

It is just a name change  before action is more specific  because it gets executed before an action

User · Answer

before filter before action  means anything to be executed before any action executes   Both are same  they are just alias for each other as their behavior is same

User · Answer

It is just syntax difference  in rails app there is CRUD  and seven actions basically by name index  new  create  show  update  edit  destroy   Rails 4 make it developer friendly to change syntax before filter to before action   before action call method before the actions which we declare  like  before action  set event  only    show   update   destroy   edit    set event is a method which will call always before show  update  edit and destroy

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