Rails does not fire my after
Hello I have a peculiar problem. I use an after_commit callback to send notifications, but it seems the callback is not triggered at all. Simplified the situation looks like this:
class Message < ActiveRecord::Base
after_commit :do_something
def do_something
raise 'Doing something'
end
end
Then I expected to see the raise when I open the console and create a message. But nothing happens. Furthermore rails does not even complain if I delete the 'do_something' method completely. Note that this is not a test with transactional fixtures. I even see the record committed in the db. My rails version is 3.0.9. Thanks for any help especially if it's good :-)
Edit: I learned later that the callback DID get triggered when I deployed the code to a different machine. So it must be something with my setup. Still I would appreciate your insight about what could be causing this.
Edit2: From the comments.
David mentioned the explanation for this behavior in the questions comment.
Transaction Callbacks documentation
"If any exceptions are raised within one of these callbacks, they will be ignored so that they don't interfere with the other callbacks. As such, if your callback code could raise an exception, you'll need to rescue it and handle it appropriately within the callback."
see also:
You may need to put a patch in your spec/support to enable after_commit callbacks when using transactional fixtures. If you are using transaction fixtures then a commit doesn't actually ever happen.
The patch: https://gist.github.com/charleseff/1305285
You should specify the action when this after_commit must be triggered....
The after_commit is basically used in those Databases where the concept of transaction is present...So try the following code...
class Message < ActiveRecord::Base
after_commit :do_something, :on => [:create, :update, :destroy]
def do_something
raise 'Doing something'
end
end
上一篇: 如何避免在GDI +中破碎的虚线？
下一篇: Rails在我之后不开火