diff options
| -rw-r--r-- | actionpack/lib/abstract_controller/callbacks.rb | 20 | ||||
| -rw-r--r-- | activejob/lib/active_job/callbacks.rb | 4 | ||||
| -rw-r--r-- | activemodel/lib/active_model/callbacks.rb | 3 | ||||
| -rw-r--r-- | activemodel/lib/active_model/validations.rb | 3 | ||||
| -rw-r--r-- | guides/source/action_controller_overview.md | 3 |
5 files changed, 32 insertions, 1 deletions
diff --git a/actionpack/lib/abstract_controller/callbacks.rb b/actionpack/lib/abstract_controller/callbacks.rb index ce4ecf17cc..ba7dec6083 100644 --- a/actionpack/lib/abstract_controller/callbacks.rb +++ b/actionpack/lib/abstract_controller/callbacks.rb @@ -1,4 +1,24 @@ module AbstractController + # = Abstract Controller Callbacks + # + # Abstract Controller provides hooks during the life cycle of a controller action. + # Callbacks allow you to trigger logic during this cycle. Available callbacks are: + # + # * <tt>after_action</tt> + # * <tt>append_after_action</tt> + # * <tt>append_around_action</tt> + # * <tt>append_before_action</tt> + # * <tt>around_action</tt> + # * <tt>before_action</tt> + # * <tt>prepend_after_action</tt> + # * <tt>prepend_around_action</tt> + # * <tt>prepend_before_action</tt> + # * <tt>skip_after_action</tt> + # * <tt>skip_around_action</tt> + # * <tt>skip_before_action</tt> + # + # NOTE: Calling the same callback multiple times will overwrite previous callback definitions. + # module Callbacks extend ActiveSupport::Concern diff --git a/activejob/lib/active_job/callbacks.rb b/activejob/lib/active_job/callbacks.rb index d5b17de8b5..9aebc880a5 100644 --- a/activejob/lib/active_job/callbacks.rb +++ b/activejob/lib/active_job/callbacks.rb @@ -4,7 +4,7 @@ module ActiveJob # = Active Job Callbacks # # Active Job provides hooks during the life cycle of a job. Callbacks allow you - # to trigger logic during the life cycle of a job. Available callbacks are: + # to trigger logic during this cycle. Available callbacks are: # # * <tt>before_enqueue</tt> # * <tt>around_enqueue</tt> @@ -13,6 +13,8 @@ module ActiveJob # * <tt>around_perform</tt> # * <tt>after_perform</tt> # + # NOTE: Calling the same callback multiple times will overwrite previous callback definitions. + # module Callbacks extend ActiveSupport::Concern include ActiveSupport::Callbacks diff --git a/activemodel/lib/active_model/callbacks.rb b/activemodel/lib/active_model/callbacks.rb index eac2761433..835e6f7716 100644 --- a/activemodel/lib/active_model/callbacks.rb +++ b/activemodel/lib/active_model/callbacks.rb @@ -56,6 +56,9 @@ module ActiveModel # # Would only create the +after_create+ and +before_create+ callback methods in # your class. + # + # NOTE: Calling the same callback multiple times will overwrite previous callback definitions. + # module Callbacks def self.extended(base) #:nodoc: base.class_eval do diff --git a/activemodel/lib/active_model/validations.rb b/activemodel/lib/active_model/validations.rb index d460068830..9fcde45167 100644 --- a/activemodel/lib/active_model/validations.rb +++ b/activemodel/lib/active_model/validations.rb @@ -147,6 +147,9 @@ module ActiveModel # or <tt>unless: Proc.new { |user| user.signup_step <= 2 }</tt>). The # method, proc or string should return or evaluate to a +true+ or +false+ # value. + # + # NOTE: Calling +validate+ multiple times on the same method will overwrite previous definitions. + # def validate(*args, &block) options = args.extract_options! diff --git a/guides/source/action_controller_overview.md b/guides/source/action_controller_overview.md index 5d987264f5..22537f960c 100644 --- a/guides/source/action_controller_overview.md +++ b/guides/source/action_controller_overview.md @@ -715,6 +715,9 @@ end Now, the `LoginsController`'s `new` and `create` actions will work as before without requiring the user to be logged in. The `:only` option is used to skip this filter only for these actions, and there is also an `:except` option which works the other way. These options can be used when adding filters too, so you can add a filter which only runs for selected actions in the first place. +NOTE: Calling the same filter multiple times with different options will not work, +since the last filter definition will overwrite the previous ones. + ### After Filters and Around Filters In addition to "before" filters, you can also run filters after an action has been executed, or both before and after. |