Does anybody out there know rails internals?

Rails
1

i need to call a sweeper directly from a model to expire cache (the
sweeper is observing the model as usual). why is this not documented?
seems like something that everybody would need to know!!

2

come on people. this should be simple to do. the sweeper is observing
the model … how do I call the sweeper.after_save(record) method from
the model?

3

OK another approach: initialize a new sweeper and call from model.
another gotcha the new method is private for
ActionController::Caching::Sweeper. can anybody help with this?
there’s no documentation.

4

On 10/24/07, Gone S. [email protected] wrote:

OK another approach: initialize a new sweeper and call from model.
another gotcha the new method is private for
ActionController::Caching::Sweeper. can anybody help with this?
there’s no documentation.

I haven’t used sweepers, so I’m not much help; but it looks like this
is a singleton. So you would need SomeSweeper.instance to get at the
singleton object. Not sure what you would do with it though…

5

i did it!! from within the model call sweeper.instance.after_save(parm)
and you have expired the cache (assume after_save is the name of the
sweeper class method that is observing the model). you’re right it is a
singleton … thanks.

6

On 10/24/07, Bob S. [email protected] wrote:

singleton object. Not sure what you would do with it though…
Sweepers are half AR Observer and half controller filter. This means
they have to run from a controller. That’s where the methods for
expiring stuff lives. You’re probably better off using an Observer
then.

–
Rick O.
http://lighthouseapp.com
http://weblog.techno-weenie.net
http://mephistoblog.com