similar to: Rolled my own alternative to trigger function with OLD/NEW

I created a sweeper ItemSweeper and saved it in app/models/item_sweeper.rb. Then I put this in my item_controller.rb: cache_sweeper :item_sweeper, :only => [:create, :destroy, :update] But now when I call the view action, I get this error: ActionView::TemplateError (undefined method `title'' for nil:NilClass) on line #5 of app/views/item/view.rhtml: 5: <H1

Hello. LoginSystem is cool, it populates the @session instance variable of controllers with many useful info. The fact is : it would be cool to let models know about the session, too. For instance, after_update and after_create callbacks could store *who* did *what* on *what. Aim : having ActiveRecord::Base::session defined, returning the @session of the controller which manipulates the

Hello all, We know that memcached or memcached-client doesn''t support regex... But It seems it doesn''t support expire_fragment either :/ I''m trying to use expire_fragment with memcached as following : expire_fragment(:controller => ''home'', :action => :list_posts) But apparently it''s not supported by memcached : RuntimeError (Not

Hello, I am trying to invalidate a cached fragment. My fragment looks like <% cache ( :controller=>''users'',:action=>''additem_to_cart'',:action_suffix=>@user.id) %> At this point,rails has created 2 cache files correctly and everything works fine becuase I dont see rails making calls to the SQL db to get items from DB.Instead it uses cache. Now

I noticed a lot of repetition across different Sweeper models in my app expiring the same fragments and so have been trying to move all the expire_fragment calls into another model which the sweepers can then use but it''s not working as I''d hoped.. I''ve created a CacheDestroyer model and want to be able to call something to the effect of:

I am trying to figure out a way to call the expire_fragment outside of a controller. I need to expire some fragments on a hourly basis. I have a Thread that every hour that will perform a task. The expire_fragment is located in the module ActionController::Caching::Fragments as an instance method. Do I need to mixin the model ActionController::Caching::Fragments into my class? Or is there

Hi, I am trying to replace my old database trigger with ActiveRecord callbacks in rails. I have a model like following: class Action < ActiveRecord::Base belongs_to :inquiry def after_update #clean up all action associated with the inquiry. Action.update_all("latest = ''''", ["inquiry_id = ?", self.inquiry_id]) #find the latest action

I have this situation where in an after_update, I would like to know the previous value of the record instead of simply being notified the record has been updated. For example let''s say I had a table called ''foo'' which had a field ''new_flag''. I want to know when the ''new_flag'' field changes from 0 -- > 1 in an after_update so I

I''ve just set up caching on my site and want to expire some of fragments on an hourly basis. I was going to use cron and script/runner to do this. For other fragments that I am expiring, I am using expire_fragment inside a sweeper class, something like: class QuestionSweeper < ActionController::Caching::Sweeper observe Question def after_validation_on_update(question)

Hey guys, I''m having a hard time w/ the after_update callback on rails... As far as I can tell, when I define a after_update callback on a model, the attributes of the object have the same values that they had *before* Base.save was called. I''m probably wrong so here''s the code: UNIT TEST: def test_register_item_adjusts_account_balance account =

I can''t seem to get a model observer to work. In my environment.rb I have: config.active_record.observers = :item_observer In item_observer.rb I have: class ItemObserver < ActiveRecord::Observer observe Item def after_update(item) if @old.active != item.active logger.debug ''observer#after_update'' #... end @old = nil end def

Hello, I''m playing around with net/http and open-uri Ruby Libraries.. I''m trying to post to my own rails simple new action method. Here''s my irb : irb(main):013:0> res = Net::HTTP.post_form(URI.parse("http://localhost:3002/blog2/new"), {"commit" => "Save", "signature_id" => "", "signature_content"

xponrails wrote: > Hi all. > > I need to expire cached fragments from outside sweepers or > controllers: I have a rake task that calls a method inside a module in > the /lib directory. This task will be called at a scheduled time by a > crontab job. > > After method execution I would like to expire some cached fragments. > > I''ve just tried to import

I''ve read in rails api that there is a touch parameter and I want to use it in my application. I have something like that class User < ActiveRecord::Base has_many :phones after_update :updated def updated ... end end class Phone < ActiveRecord::Base belongs_to :user, :touch => true end I want that every change of any phone number would change User updated_at

--- builder/Makefile.am | 1 + builder/builder.ml | 69 +++++++++++++++++++++++++---------------------------- builder/cmdline.ml | 37 ++++++++++++++++++++++++---- builder/cmdline.mli | 44 ++++++++++++++++++++++++++++++++++ 4 files changed, 110 insertions(+), 41 deletions(-) create mode 100644 builder/cmdline.mli diff --git a/builder/Makefile.am b/builder/Makefile.am index 6742822..993cc7b

Observers will be no more as of Rails 4, farewell, never been much of a fan. However, I''m using it in one of my gems which enables model attributes for use with a WYSIWYM editor. The resulting markup is persisted, but in order to use it in a view, it has to be nokogiried in a helper which fragment caches the result. This cache has to be zapped once the model instance is either

Hi, I''m trying to run a ruby file in lib from inside of a model. How can I run a ruby file from inside of a model? In this example, Thing.rb is my model. I''m trying to run do_update.rb. How can I call this from inside of Thing.rb? Thing.rb ********************** def update_things delete_cache things = Thing.find(:all, :conditions => "updated = false") ###

I''ve got a strange behaviour that didn''t seem to be happening before I upgraded to 1.2. I''ve got two models - questions and results. When a user answers a question, his answer is recorded in results. In my results model, I have an after_create that increments! a count in the question model. This increment is now triggering an after_update method I have in a

I have a Topic that has_many comments. In the search results only want Topics to show up, but I want them to include the text of the comments that they have when they are indexed. To do this I''ve added a :comments_text field for acts_as_ferret and the comments_text method gathers the text from all comments up into a string that can be indexed. The trick is that when comments are added,

I''m not sure how to implement this so I''ll describe what I currently have done then what I wish to have happen currently, I have a generic observer for several models class AuditObserver < ActiveRecord::Observer observe Foo, Bar def after_update(model) model.log("UPDATED " + Time.now.strftime("%m-%d-%Y %H:%M")) end def after_create(model)