similar to: set_default_values rocket science - continuing after_initialize/after_find misfeature

Hello, I am still reading Agile Web Developer pdf, it says about after_initialize and after_find. There is a Joe asks part when I read that they are special, however I didn''t really get the idea, why they are. On rubyonrails.org in the manual there is some sort description about their speciality, however their full descriptions are missing. What are the difference between

Hi, I am thinking about writing an acts_as_fox plugin that defines an after_find callback method. If I do this what will happen if a user creates a model that acts_as_fox but this model has it''s own after_find callback method? I imagine that the model''s after_find method shadows the plugin''s after_find. Presumably both after_find callbacks would need to be performed but

Filed a ticket for bogus Ruby produced via: rake db_schema_dump http://dev.rubyonrails.org/ticket/3232 I''d appreciate it if someone could verify against PostgreSQL 8.0.x -- -- Tom Mornini

I have 2 distinct types of users (artists and curators) in my system and they currently share all associations (eg has_one :portfolio). However, a curator shouldn''t have a portfolio so I would like to only add that association when required. Obviously I could just return nil for that method, but it doesn''t feel right having that there in the first place. What''s the best

I have a case where I am abstracting the creation of models. After a fair bit of indirection, I eventually get around to making a .new call. I need to be able to pass params to that .new call. I know I can''t use def initialize() in an AR model (rather frustrating). So, I have found some references to after_initialize, but that doesn''t work either. I see several threads on

hi, i am having problems getting after_initialize for activerecord subclasses. basically, i am trying to use the guid plugin by andy singleton. i am having problems extending the class to the plugins i installed, so i figured i will just apply this to all the models in my project. i trled to add the following to my lib/ folder. my goal is to extended the activerecord class so that it uses

Hi all, Just had an interesting production failure while updating my Rails application - a bunch of code previously in config/environment.rb was put into config/initializers. That resulted in me having to wrap some code in config/environments/production.rb into an after_initialize do ... end block When backgroundrb was run against that code, the setup done in that after_initialize block

All, I have a quick question - is the purpose of implementing after_initialize to allow custom attribute initialization for AR descendants? I have been overriding initialize whenever I require custom setup of my model classes, like so: def initialize(attributes = nil) super self.Status = ''G'' end So I have a couple of questions: 1) Could I achieve the same

Hi, I''m using activemerchant and setting up a class variable using config.after_initialize. It works great for the first request, but then the variable is nil. config.after_initialize do ActiveMerchant::Billing::Base.mode = :test OrderTransaction.gateway = ActiveMerchant::Billing::PaypalGateway.new(...) end I''m assuming this is is due to the model reloading after each

Hi everybody I would like a function as the "before_save" method in the model. But it must be the opposite. When I take out data from the database through the model, I want to call a function before the data are available in the controller. Can anyone help me? ---- >>>> thx <<<< ---- -- Posted via http://www.ruby-forum.com/.

Nothing special, just my first plugin. it came out of a request I saw on the list from someone who wanted to be able to tell if a model''s attributes had changed prior to being saved. Well, this plugin does just that (at least I hope it does). http://rubyforge.org/projects/actsasmodified/ Please see the README for details. Constructive comments and criticisms are appreciated. Chris

Hi all ! I''m having an issue and I can''t seem to make heads or tails of it. I am attempting to add an observer to a model object. I created app/models/greenback_transaction_observer.rb, inherited from AR::Observer, defined methods, registered in config/environment.rb, but things don''t work... So, I took a step back and put in the following code: class

After a couple of thoughtful comments, I''ve made changes to acts_as_modified plugin. It no longer relies on after_find and after_initialize, which were both causing performance issues. Please check it out and let me know what you think, where you might recommend improvements or additional features and what not. One feature I do have planned (again, thanks to comments), but

Hello, How do I stop data being written to the database when an error occurs? I have this in my controller: if @item.valid? #stuff here else render :action => ''show'', :id => @item end When it enters the else section, it renders the ''show'' action, but it adds the data to the database. How do I prevent this from happening? Thanks -- Posted

Hi, I know that it is possible to execute code each time data is saved into a model by using the +validate+ method. However, is there also a way to execute code each time the data is accessed, not just when it is changed? Bye, Winsmith -- Posted via http://www.ruby-forum.com/.

Ask and ye shall receive. 1.1.3 now has a plugin test. i had one small issue with after_save being called, so i added the callback in. it works when i create a test app and run the unit tests so i think it has something to do with how i override the save method. if you have any suggestions, please feel free to comment. As far as the AR test suite goes...I''m not sure how this plugin

I created a model with some internal state derived from a combination of database and non-database data. Since I wanted to calculate these values once rather than every time they''re requested by the view, I calculated them in the initialize method and set some instance variables. However, I soon noticed that these values weren''t getting set when I retrieved data using the

I want to expire caches if a certain field of an item changes. How can I compare the item field''s old value to its new value (in the create, or after_save, etc. method)? thanks csn __________________________________ Yahoo! Mail - PC Magazine Editors'' Choice 2005 http://mail.yahoo.com

Hi, This morning I had some failed calls. On the console (and in the log) I saw the error "Unable to allocate channel structure". Before I restarted the process, I checked it's memory usage in ps and glanced at my free memory in top. Asterisk was using a normal ammount of memory, about 40M. I don't think this was a system limit. This was running Asterisk v1.0.2. Below is

Hi all, Long-time lurker, first time poster here. I've been using Icecast since 2006, but in recent years, I've kept running into all sorts of issues and found many others who are in the same boat. I've done some small experimental hacks to Icecast just for fun, but I've never contributed code because: 1) I've been alienated by the Icecast team's hostility towards MP3 and