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-rw-r--r--railties/guides/source/active_record_validations_callbacks.textile18
1 files changed, 5 insertions, 13 deletions
diff --git a/railties/guides/source/active_record_validations_callbacks.textile b/railties/guides/source/active_record_validations_callbacks.textile
index 665e7f9ccc..a27c292a4c 100644
--- a/railties/guides/source/active_record_validations_callbacks.textile
+++ b/railties/guides/source/active_record_validations_callbacks.textile
@@ -796,17 +796,9 @@ person.errors.size # => 0
h3. Displaying Validation Errors in the View
-Rails maintains an official plugin, DynamicForm, that provides helpers to display the error messages of your models in your view templates. You can install it as a plugin or as a Gem.
+"DynamicForm":https://github.com/joelmoss/dynamic_form provides helpers to display the error messages of your models in your view templates.
-h4. Installing as a plugin
-
-<shell>
-$ rails plugin install git://github.com/joelmoss/dynamic_form.git
-</shell>
-
-h4. Installing as a Gem
-
-Add this line in your Gemfile:
+You can install it as a gem by adding this line to your Gemfile:
<ruby>
gem "dynamic_form"
@@ -986,15 +978,15 @@ The +after_initialize+ callback will be called whenever an Active Record object
The +after_find+ callback will be called whenever Active Record loads a record from the database. +after_find+ is called before +after_initialize+ if both are defined.
-The +after_initialize+ and +after_find+ callbacks are a bit different from the others. They have no +before_*+ counterparts, and they are registered simply by defining them as regular methods with predefined names. If you try to register +after_initialize+ or +after_find+ using macro-style class methods, they will just be ignored. This behavior is due to performance reasons, since +after_initialize+ and +after_find+ will both be called for each record found in the database, which would otherwise significantly slow down the queries.
+The +after_initialize+ and +after_find+ callbacks have no +before_*+ counterparts, but they can be registered just like the other Active Record callbacks.
<ruby>
class User < ActiveRecord::Base
- def after_initialize
+ after_initialize do |user|
puts "You have initialized an object!"
end
- def after_find
+ after_find do |user|
puts "You have found an object!"
end
end