I have some models that have after_save callbacks. Usually that's fine, but in some situations, like when creating development data, I want to save the models without having the callbacks run. Is there a simple way to do that? Something akin to...
Person#save( :run_callbacks => false )
or
Person#save_without_callbacks
I looked in the Rails docs and didn't find anything. However in my experience the Rails docs don't always tell the whole story.
UPDATE
I found a blog post that explains how you can remove callbacks from a model like this:
Foo.after_save.clear
I couldn't find where that method is documented but it seems to work.
ベストアンサー1
Use update_column
(Rails >= v3.1) or update_columns
(Rails >= 4.0) to skip callbacks and validations. Also with these methods, updated_at
is not updated.
#Rails >= v3.1 only
@person.update_column(:some_attribute, 'value')
#Rails >= v4.0 only
@person.update_columns(attributes)
http://api.rubyonrails.org/classes/ActiveRecord/Persistence.html#method-i-update_column
#2: Skipping callbacks that also works while creating an object
class Person < ActiveRecord::Base
attr_accessor :skip_some_callbacks
before_validation :do_something
after_validation :do_something_else
skip_callback :validation, :before, :do_something, if: :skip_some_callbacks
skip_callback :validation, :after, :do_something_else, if: :skip_some_callbacks
end
person = Person.new(person_params)
person.skip_some_callbacks = true
person.save
UPDATE (2020)
Apparently Rails has always supported :if
and :unless
options, so above code can be simplified as:
class Person < ActiveRecord::Base
attr_accessor :skip_some_callbacks
before_validation :do_something, unless: :skip_some_callbacks
after_validation :do_something_else, unless: :skip_some_callbacks
end
person = Person.new(person_params)
person.skip_some_callbacks = true
person.save