similar to: Extending a model in a component...

I have: module MySpike extend ActiveSupport::Concern included do class_attribute :foobar, instance_writer: true end end But, I want to be able to override the class attribute writer and/or instance writer method to do something when the attribute is set via self.foobar = true before or after calling super to set the attribute. Unfortunately, I can''t find a clean way

Anyone got any idea of how to use built-in validation methods in a mixed-in module. What I''ve got at the moment is each class that needs ranking methods includes [the module] Ranking. Then the module Ranking has a bunch of instance methods and a submodule ClassMethods. The ClassMethods in this are mixed in to the class with self.included. So far so good. But I want the module to

Hello, I needed to add custom cache field for one of my application. I thought I will share the code showing how to do this. This code below creates and maintain a custom cache field, for keeping track of totals. Say, you have accounts, and for each account there are transactions (either deposit/withdrawal), and one will like to keep track of the total balance for an account. So, let there be a

hi, I found a bug in ActiveRecord association SQL INNER JOIN codes. in has_many, has_one, habtm and belongs_to queries the foreign key is determined from the table name of reflection and self. but that''s worng because if you use a global prefix or suffix for your tables the foreign keys will be in format of PREFIX_CLASSNAME_SUFFIX_id which is wrong, because it breaks the advantage of

I''ve monkey patched this behavior into a gem and I was wondering if core would be interested in a PR to add Module#prepend support to ActiveSupport#Concern. I''ll add tests of course. The code is here: https://github.com/dockyard/easy_auth/blob/master/lib/easy_auth/active_support/concern.rb My monkey patch work for what I''m trying to do but I suspect a better

This is a very straightforward problem.. -I included a mixin in lib/ (see below) -In environment.rb, I included the require statement (require ''acts_as_tree_additions'') -Defined a method in the model: def category_list format_as_list #method in acts_as_tree_additions end -Called that method in the view.. I know the method is in the correct use, because it prints out a

append_features(mod) The documentation says: When this module is included in another, Ruby calls append_features in this module, passing it the receiving module in mod. Ruby’s default implementation is to add the constants, methods, and module variables of this module to mod if this module has not already been added to mod or one of its ancestors. See also Module#include. What if this module is

Hello, I have a database table with a primary key not being a simple id but three columns. By overriding update() and create() I got Rails to work with that table quit good. Except for the destroy() action. From the resulting trace I can see that the old version of destroy() is called from transaction.rb. I think this lines might be the reason that I''m unable to override detroy():

I''ve created an access control module that I''m including in several different controllers. Everything works fine, but I want to allow each controller to override the default login page with something like this: set_login_pages :secure => ''my_login'' In my module, I''ve set up the set_login_pages method like this: def self.included(base)

Starting to feel more confident and code is DRYing up nicely, but I''ve hit a brick wall here and hoping someone can help me. I''ve got a module, TrustRanking, which extends a number of model''s instance methods, and I want to extend their class methods too, but I can seem to work out how to do it. Simply including the module from the class works a treat for the

Hi all This week I have worked with Rails and Ferret to test Ferrets (and Lucenes) capabilities. I decided to make a mixin for ActiveRecord as it seemed the simplest possible solution and I ended up making this into a plugin. For more info on Ferret see: http://ferret.davebalmain.com/trac/ The plugin is functional but could easily be refined. Anyway I want to share it with you. Regard it as a

Hi all This week I have worked with Rails and Ferret to test Ferrets (and Lucenes) capabilities. I decided to make a mixin for ActiveRecord as it seemed the simplest possible solution and I ended up making this into a plugin. For more info on Ferret see: http://ferret.davebalmain.com/trac/ The plugin is functional but could easily be refined. Anyway I want to share it with you. Regard it as a

i am currently digging into the rails 2.2.2 source to get a deeper understanding of some features (in particular model-validation) and a better overall insight. most of rails features are encapsulated in a separate module - as far as can see - and wired together through mixins. this makes sense and following the logic in the single modules is easy. but i am getting stuck while puzzling to see it

I''m trying to enhance acts_as_nested_set. Well actually I already have, but I''ve done a hack up job of it. I would like to contribute these enhancements back, but I need a little help. I''m a complete newbie to this stuff. The only thing I new before coming into this project was vanilla HTML. So over the course of two weeks I''ve picked up Ruby, Rails, MySQL,

Hey folks, have you seen this ever? [user@i ~/rails_project]$ rake rails:update --trace (in /usr/home/rails_project) rake aborted! uninitialized constant ActiveModel::Validations::HelperMethods /usr/local/lib/ruby/gems/1.8/gems/activemodel-3.0.4/lib/active_model/ validations.rb:50 /usr/local/lib/ruby/gems/1.8/gems/activesupport-3.0.4/lib/ active_support/concern.rb:52:in `class_eval''

hey folks I''ve installed the plugin acts_as_taggable_on_steroids (henceforth aatos), and i already have some tagging functionality set up, using the same approach (ie a Tag and a Tagging class with associated tables) as aatos. So, i want my existing Tag and Taggings methods, plus some other methods i have in a module which i include with the taggable classes (ie the ones that would call

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, i''m using ActiveForm for some validations without a database. the problem is, when i start my application, I get this error: undefined method `save!'' for class `ActiveForm'' but if i refresh my browser, the application starts normally. im guessing it''s because the ActiveForm class uses some things from active record that haven''t been

Trying to get an otherwise working app (in Rails 2.0.2) up to speed with Rails 2.1.0 and Ruby 1.8.7, I have some broken code I can''t seem to fix: module Pathmaker def self.append_features( base ) base.before_save do |model| model.path = model.name.downcase. gsub( /\ and\ /, ''-'' ). gsub( /\ on\ /, ''-'' ).

I am working on a small model mixin called attachment_kung to make attachment_fu polymorphic, so you no longer need a different table and Model class for every associated attachment (Productimage, Ad_doc, etc). All you really need is one model and table to handel all your attachments - in some cases, anyway. I have the code working, but have run into one small hitch that I can''t seem to