similar to: in after_update, possible to see previous value of record?

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

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''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 want to include common auditing functionality in my models. This involves storing the changes made to a model in a seperate table : I have created the functions in an Audit module : module Audit before_update :before_changes after_update :after_changes def before_changes old=self.class.find(id).attributes @changes=[] attributes.each do |key, val| if val != old[key]

With after triggers in Postgres, there are special NEW and OLD vars accessible to trigger functions. Any such thing in Rails? Or would it entail doing something like setting a class var in before_update? Jack -- Posted via http://www.ruby-forum.com/.

I''ve been searching around trying to find out if there is some way to attach something to an ActiveRecord class such that every time an update is called, a record of that update (which fields, when) is created. I think it would be useful for syncing information with external services I think. Questions: If there is a wealth of knowledge on this, what search terms will lead me in the

Is there a ''replace'' method or similar for attchment_fu? For instance, I have an image that is uploaded and stored. Now I want to replace it with a different image. I do not want to do a delete and then new - since I need to keep various attributes associated with the previous image. thanks. --~--~---------~--~----~------------~-------~--~----~ You received this message

I need to implement multiple undo functionality into a Rails app (my first one). Essentially, every .update and .save needs to record the previous data set and save them in a history table along with some identifying stamps, so each db action can be rolled back at any time. From what i can tell, i could implement this manually using observers perhaps; but this is Rails, so i wonder if

How to update attribute(s) and save a record instance without triggering the hooks: after_save, after_create, after_update? I know it''s possible with Record.update() but this is dynamic. Only receive the instance, without knowing its class (thus cannot call the class method update()). Or is there a way of knowing the class and calling the class method? Thank you. -- Posted via

Hello, consider this code: http://pastie.org/1173871 Why after_update in Subscription model gets called? I''m using Rails 3. Thanks -- Posted via http://www.ruby-forum.com/. -- You received this message because you are subscribed to the Google Groups "Ruby on Rails: Talk" group. To post to this group, send email to

Is there a built-in way to determine if a model object has just been created (ie. this object was the one that was originally persisted)? I can''t see it anywhere in the AR code, but thought I''d check. I want something like: p = Person.create p.original_instance? # true Is this built-in or should I just patch AR? -Jonathan.

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

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

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

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,

Hello, I''m running Mongrel 0.3.13.3, cluster 0.2.0, and Rails 1.1.6 and I have a problem with a sweeper not having access to the controller instance. NoMethodError (undefined method `session'' for nil:NilClass): /app/models/audit_sweeper.rb:16:in `log'' /app/models/audit_sweeper.rb:9:in `after_update''

Hi, I''ve started to implement page caches but I''ve hit a brick wall getting a sweeper to clear the cache when needed. It seems that any models that I tell it to observe aren''t being observed properly. If I add the sweeper to a controller the initialize method runs, but no matter what I do the after_save/after_update callbacks aren''t running. Also if I try to

Hi, I am deploying a Rails website using Capistrano to a VPS running the site through Apache and Mongrel. ''cap deploy'' works fine, and mongrels are restarted. When I execute ''cap deploy:rollback'', however, my script fails to restart the mongrels giving this error: !!! PID file tmp/pids/mongrel.5000.pid already exists. Mongrel could be running already.

I seem to be having problems with getting my searcher to be consistent while indexing. I am running the latest version of ferret (0.10.13) and I am using the Searchable plugin. Currently the way it indexes is by using a callback in the model of either after_update or after_create to index the fields that I have setup to be indexed. Right now I update the index about once every 4 or 5

I''ve installed the acts_as_versioned gem, and it shows up as installed when i do a "gem list" After installing it, I set up my new model with the "acts_as_versioned" line in its model file. I think went to run my migration to create this table, and I got the following error: == CreateDpslevels: migrating ================================================ --