similar to: Ruby class variables and access from view templates

I have a simple question when to the synchronize method in the Mutex class. Now that backgroundrb has allow_concurrency = true there is no need to synchronize database calls in threads. The question I have is lets say I have a simple method in my worker as follows: def some_method SomeModel.find_all each do |obj| obj.some_count += 1 obj.save! end end It accesses the database, but

I have a method in a controller that invokes a render :partial => ''some_partial_view'' In that view, I''m trying to access a method defined in a model, like this; <% for view in @an_array %> <% local_var = view.some_method() %> <% another_var = view.a_column_name %> etc.. I am getting an undefined method error but the model is accessible

I wanted to group some functions which I use in some models in one place. Controllers have application.rb and views have helpers but I couldn''t find anything about models. Using the /lib directory seemed to be the only way. Alright... so I have something like this: /lib/code.rb class ActiveRecord::Base def method_a(n) ....... end def method_b(n) ........ end end

Is there any scalable alternative to iterating all the records of a certain model? #find_all seems to load everything into memory. With 500.000 records it will be a swap storm. Pedro.

On Wed, Oct 14, 2009 at 5:49 PM, Scott Taylor <scott at railsnewbie.com> wrote: > > On Oct 14, 2009, at 3:36 PM, Joaquin Rivera Padron wrote: > > hello there, > how do you tipically spec private methods? The thing is ? have something > like this: > > def some_method > ?? complex_method + other_complex_methods > end > > private > def complex_method...

Hi folks. I'm posting this to both the Fedora as well as the CentOS lists in hopes that somewhere, someone can help me figure out what's going on. I have a dual Xeon 3GHz server that's performing rather slow when it comes to disk activities. The machine is configured with a single 160 GiB OS drive (with CentOS 5.0) and 4x500 GiB drives setup in a RAID-5 configuration.

I found a tutorial for creating classes using generic functions ? S3 way ! It was short description so I couldn't grok in full its usage ... So far so good, what i currently do is something like this : Blah <- function(data,...) UseMethod('Blah') Blah.default <- function( ...... ) { self = .... class(self) <- 'Blah' self } Blah.some_method <-

I have class in a plugin that I want to crack open and add some functionality to for a particular application. So, I created a file by the same name as the class in my app/models folder and added some methods to the class, but, I can''t seem to get Rails (2.2.2) to pick-up the extended definition. I did find while trying to debug the problem that if I paste the extended definition into,

All - I''m completely new to RoR and also new to programming in an MVC structure... The Pragmatic Programmers guide to Rails says, temptingly: "After filters can be used to modify the outbound response, changing the headers and content if required. Some applications use this technique to perform global replacements in the content generated by the controller?s templates (for

Hi, I have a controller where I access a singleton class that I use to connect to a DRbprocess DrbConnector.instance.some_method I notice that on every request, the constructor is called so it is making a new instance of this singleton. Is this normal? Thanks, Curtis

Hi, I wonder if there''s an easy way to access the associated Model class from its Controller. Something that would allow me to write snippets like the following: class PeopleController < ApplicationController def some_method person_model_class = self.some_method_to_retrieve_the_person_model_class() end end Cheers, Marco -- Posted via

I''ve setup two models, 1 and 2, that are associated by has_and_belongs_to_many. I''m trying to get an attribute from model_1 to use in a method in model_2. When I use the code below, I get an error saying ''undefined method model_1_id''. What am I missing? Thanks! Model_2.rb Class Model_2 < ActiveRecord::Base ... has_and_belongs_to_many :model_1 def

Hey All, Two questions. Firstly, what is the difference between create and create! I see that create is document in the api http://api.rubyonrails.org/classes/ActiveRecord/Base.html#M002269 What is the difference between the two of these functions and where is the create! function defined. Also, What are the differences between these two calls? a) SomeModel.create!{ :property_a =>

I have a question regarding best practices around module and plugin testing for rails applications. In our application we have created several plugins that extend ActiveRecord::Base with class methods, that when invoked in a model add behavior to that model. For example ... class SomeModel < ActiveRecord::Base adds_some_cool_behavior adds_another_wicked_sweet_behavior end My

Hello, This is probably a silly question but looking at "api.rubyonrails.org", I can''t seem to figure out which method I should be using ... I want to execute an sql statement, like "truncate table BLAH" from within one of my rails app ... What''s the "right" way to do this? Thanks, /B -- Bruno Mattarollo <bruno.mattarollo@gmail.com>

Hi! I am looking for a solution for the following problem: Some of my models share some attributes and also was in need for some extra features, so I created a class "RecordWithFeatures": ----------------------------------------------------------------- class RecordWithFeatures < ActiveRecord::Base # @Override def self.descends_from_active_record? superclass ==

Hello All, I want to schedule a mail every day. I used whenever gem. I added gem ''whenever'' in my gemfile. Then in the terminal I did - "whenever ." which created a schedule.rb. In schedule.rd I added this piece of code:- set :environment, "development" every 2.minutes do runner "UserMailer.some_method" end Does it get invoked

I was looking at Kyle Mawell''s extremely nifty-looking StateModels plugin http://www.kylemaxwell.com/articles/2006/02/06/fun-with-single-table-inheritance and before I go down the road with it, I was wondering if anyone has used it with file_column. The way file_column deals with an uploaded file -- by storing it to the filesystem in a path that employs the model name and id --

I have a simple question. Let''s say I do this in one of my models: after_save drb_conn.some_method(self) end When that object gets over to the background process is it the exact same as?.... Model.find some_id #in the background process As far as my background process is concerned passing the object is not any different than passing the id and using the find method? Because

I''ve seen this come up a few times before on this list but never felt it got a satisfactory answer. What is the best way to execute timed actions? Examples include sending an email each week, calculating interest each day, or cleaning up your database or server files. This wiki page has some ideas, but these seem a bit extreme.