Deprecate all *_filter callbacks in favor of *_action callbacks

This is the continuation of the work started at
9d62e048

actionpack/CHANGELOG.md

+*   Deprecate all *_filter callbacks in favor of *_action callbacks.
+
+    *Rafael Mendonça França*
+
 *   Fix URL generation with `:trailing_slash` such that it does not add
     a trailing slash after `.:format`
 

actionpack/lib/abstract_controller/callbacks.rb

+require 'active_support/deprecation'
+
 module AbstractController
   module Callbacks
     extend ActiveSupport::Concern
@@ -42,21 +44,23 @@ def _normalize_callback_option(options, from, to) # :nodoc:
         end
       end
 
-      # Skip before, after, and around action callbacks matching any of the names
-      # Aliased as skip_filter.
+      # Skip before, after, and around action callbacks matching any of the names.
       #
       # ==== Parameters
       # * <tt>names</tt> - A list of valid names that could be used for
       #   callbacks. Note that skipping uses Ruby equality, so it's
       #   impossible to skip a callback defined using an anonymous proc
-      #   using #skip_filter
+      #   using #skip_action_callback
       def skip_action_callback(*names)
         skip_before_action(*names)
         skip_after_action(*names)
         skip_around_action(*names)
       end
 
-      alias_method :skip_filter, :skip_action_callback
+      def skip_filter(*names)
+        ActiveSupport::Deprecation.warn("#{callback}_filter is deprecated and will removed in Rails 5. Use #{callback}_action instead.")
+        skip_action_callback(*names)
+      end
 
       # Take callback names and an optional callback proc, normalize them,
       # then call the block with each callback. This allows us to abstract
@@ -85,7 +89,6 @@ def _insert_callbacks(callbacks, block = nil)
       # :call-seq: before_action(names, block)
       #
       # Append a callback before actions. See _insert_callbacks for parameter details.
-      # Aliased as before_filter.
 
       ##
       # :method: prepend_before_action
@@ -93,7 +96,6 @@ def _insert_callbacks(callbacks, block = nil)
       # :call-seq: prepend_before_action(names, block)
       #
       # Prepend a callback before actions. See _insert_callbacks for parameter details.
-      # Aliased as prepend_before_filter.
 
       ##
       # :method: skip_before_action
@@ -101,7 +103,6 @@ def _insert_callbacks(callbacks, block = nil)
       # :call-seq: skip_before_action(names)
       #
       # Skip a callback before actions. See _insert_callbacks for parameter details.
-      # Aliased as skip_before_filter.
 
       ##
       # :method: append_before_action
@@ -109,7 +110,6 @@ def _insert_callbacks(callbacks, block = nil)
       # :call-seq: append_before_action(names, block)
       #
       # Append a callback before actions. See _insert_callbacks for parameter details.
-      # Aliased as append_before_filter.
 
       ##
       # :method: after_action
@@ -117,7 +117,6 @@ def _insert_callbacks(callbacks, block = nil)
       # :call-seq: after_action(names, block)
       #
       # Append a callback after actions. See _insert_callbacks for parameter details.
-      # Aliased as after_filter.
 
       ##
       # :method: prepend_after_action
@@ -125,7 +124,6 @@ def _insert_callbacks(callbacks, block = nil)
       # :call-seq: prepend_after_action(names, block)
       #
       # Prepend a callback after actions. See _insert_callbacks for parameter details.
-      # Aliased as prepend_after_filter.
 
       ##
       # :method: skip_after_action
@@ -133,7 +131,6 @@ def _insert_callbacks(callbacks, block = nil)
       # :call-seq: skip_after_action(names)
       #
       # Skip a callback after actions. See _insert_callbacks for parameter details.
-      # Aliased as skip_after_filter.
 
       ##
       # :method: append_after_action
@@ -141,7 +138,6 @@ def _insert_callbacks(callbacks, block = nil)
       # :call-seq: append_after_action(names, block)
       #
       # Append a callback after actions. See _insert_callbacks for parameter details.
-      # Aliased as append_after_filter.
 
       ##
       # :method: around_action
@@ -149,7 +145,6 @@ def _insert_callbacks(callbacks, block = nil)
       # :call-seq: around_action(names, block)
       #
       # Append a callback around actions. See _insert_callbacks for parameter details.
-      # Aliased as around_filter.
 
       ##
       # :method: prepend_around_action
@@ -157,7 +152,6 @@ def _insert_callbacks(callbacks, block = nil)
       # :call-seq: prepend_around_action(names, block)
       #
       # Prepend a callback around actions. See _insert_callbacks for parameter details.
-      # Aliased as prepend_around_filter.
 
       ##
       # :method: skip_around_action
@@ -165,7 +159,6 @@ def _insert_callbacks(callbacks, block = nil)
       # :call-seq: skip_around_action(names)
       #
       # Skip a callback around actions. See _insert_callbacks for parameter details.
-      # Aliased as skip_around_filter.
 
       ##
       # :method: append_around_action
@@ -173,7 +166,6 @@ def _insert_callbacks(callbacks, block = nil)
       # :call-seq: append_around_action(names, block)
       #
       # Append a callback around actions. See _insert_callbacks for parameter details.
-      # Aliased as append_around_filter.
 
       # set up before_action, prepend_before_action, skip_before_action, etc.
       # for each of before, after, and around.
@@ -184,7 +176,10 @@ def _insert_callbacks(callbacks, block = nil)
           end
         end
 
-        alias_method :"#{callback}_filter", :"#{callback}_action"
+        define_method "#{callback}_filter" do |*names, &blk|
+          ActiveSupport::Deprecation.warn("#{callback}_filter is deprecated and will removed in Rails 5. Use #{callback}_action instead.")
+          send("#{callback}_action", *names, &blk)
+        end
 
         define_method "prepend_#{callback}_action" do |*names, &blk|
           _insert_callbacks(names, blk) do |name, options|
@@ -192,7 +187,10 @@ def _insert_callbacks(callbacks, block = nil)
           end
         end
 
-        alias_method :"prepend_#{callback}_filter", :"prepend_#{callback}_action"
+        define_method "prepend_#{callback}_filter" do |*names, &blk|
+          ActiveSupport::Deprecation.warn("prepend_#{callback}_filter is deprecated and will removed in Rails 5. Use prepend_#{callback}_action instead.")
+          send("prepend_#{callback}_action", *names, &blk)
+        end
 
         # Skip a before, after or around callback. See _insert_callbacks
         # for details on the allowed parameters.
@@ -202,11 +200,17 @@ def _insert_callbacks(callbacks, block = nil)
           end
         end
 
-        alias_method :"skip_#{callback}_filter", :"skip_#{callback}_action"
+        define_method "skip_#{callback}_filter" do |*names, &blk|
+          ActiveSupport::Deprecation.warn("skip_#{callback}_filter is deprecated and will removed in Rails 5. Use skip_#{callback}_action instead.")
+          send("skip_#{callback}_action", *names, &blk)
+        end
 
         # *_action is the same as append_*_action
         alias_method :"append_#{callback}_action", :"#{callback}_action"  # alias_method :append_before_action, :before_action
-        alias_method :"append_#{callback}_filter", :"#{callback}_action"  # alias_method :append_before_filter, :before_action
+        define_method "append_#{callback}_filter" do |*names, &blk|
+          ActiveSupport::Deprecation.warn("append_#{callback}_filter is deprecated and will removed in Rails 5. Use append_#{callback}_action instead.")
+          send("append_#{callback}_action", *names, &blk)
+        end
       end
     end
   end

actionpack/test/abstract/callbacks_test.rb

@@ -267,9 +267,11 @@ class TestCallbacksWithArgs < ActiveSupport::TestCase
     end
 
     class AliasedCallbacks < ControllerWithCallbacks
-      before_filter :first
-      after_filter :second
-      around_filter :aroundz
+      ActiveSupport::Deprecation.silence do
+        before_filter :first
+        after_filter :second
+        around_filter :aroundz
+      end
 
       def first
         @text = "Hello world"

actionpack/test/controller/test_case_test.rb

@@ -164,7 +164,7 @@ def view_assigns
   end
 
   class DefaultUrlOptionsCachingController < ActionController::Base
-    before_filter { @dynamic_opt = 'opt' }
+    before_action { @dynamic_opt = 'opt' }
 
     def test_url_options_reset
       render text: url_for(params)

railties/lib/rails/info_controller.rb

@@ -5,7 +5,7 @@ class Rails::InfoController < Rails::ApplicationController # :nodoc:
   prepend_view_path ActionDispatch::DebugExceptions::RESCUES_TEMPLATE_PATH
   layout -> { request.xhr? ? false : 'application' }
 
-  before_filter :require_local!
+  before_action :require_local!
 
   def index
     redirect_to action: :routes

railties/lib/rails/mailers_controller.rb

@@ -3,8 +3,8 @@
 class Rails::MailersController < Rails::ApplicationController # :nodoc:
   prepend_view_path ActionDispatch::DebugExceptions::RESCUES_TEMPLATE_PATH
 
-  before_filter :require_local!
-  before_filter :find_preview, only: :preview
+  before_action :require_local!
+  before_action :find_preview, only: :preview
 
   def index
     @previews = ActionMailer::Preview.all
@@ -70,4 +70,4 @@ def find_part(format)
         @email
       end
     end
-end
\ No newline at end of file
+end