similar to: Migrating a Field to External Model

i am trying to validate without saving use the valid? method on my object. however i keep getting the following error (that i reproduced in console) "NoMethodError for field" Any ideas ? thanks adam Loading development environment. >> p = Post.new => #<Post:0x407b6050 @attributes={"created_on"=>nil, "subcat"=>1, "cat"=>nil,

I submitted this earlier, but the web forums went down and I''ve screwed up the thread, so I''m starting over. I''m trying to built a document upload system. The system has a main Document model with different subclasses for different types of documents. With the code below, if I attempt to create a Document, it works fine, but if I attempt to use one of the subclasses, I

Hi All, I''m newbie to this tool and following some tutorials I''ve came across with this problem when configuring my webpage: In Debian/testing, ruby1.8, rails1.1 I create my audio application which connects to a database (mysql) named audio with tables: articulos(id,titulo,descripcion,created_on,categoria_id) and categorias(id,titulo) after creating and modifying the

I''m trying to create a document upload system, where most of the code is the super class Document and just the path to file on the system is controlled by the sub classes. When I attempt to use my code, I get the following when I try to save the document. can''t dump anonymous class Class Any ideas? ** Migration ** class CreateDocuments < ActiveRecord::Migration def

I''m working on user authentication system to get familiar with rails, and have basically solved most of my apps problems till now. I keep getting the NoMethodError, and can''t understand why. Model: customer.rb class Customer < ActiveRecord::Base ... def self.password=(pass) @password=pass salt = Customer.random_string(10) if !salt? self.hashed_password =

Hello, I tried to post this as a bug on the trac site, but whenever I hit submit, I got the error message: --- Precondition Failed The precondition on the request for the URL /newticket evaluated to false. --- Anyway... Let''s say I have the following model classes: --- class Project < ActiveRecord::Base has_many :tasks end class Task < ActiveRecord::Base belongs_to

I''ve got something like this: class Position < ActiveRecord::Base end class CartItem < Position validates_uniqueness_of :product_id end When I try to save CartItem I get this error: ArgumentError: wrong number of arguments (1 for 2) from /home/joaz/.gem/ruby/1.8/gems/activerecord-2.3.2/lib/active_record/validations.rb:758:in `exists?'' from

I''ve just done a fresh reinstall of OS X Snow Leopard on my mac, and I''m having all kinds of problems with Rails, but the latest problem has me stumped. Whenever I run rake db:seed to populate my database I hit the following error: ** Invoke db:seed (first_time) ** Invoke environment (first_time) ** Execute environment ** Execute db:seed rake aborted! uninitialized constant

I''ve been working with the problem that Joe Hosteny has been talking about on this list and on the tickets he''s posted (http://dev.rubyonrails.com/ticket/1196) and have come up with a tentative solution that I''d like to bring up here. What if we use a "conditional" parameter in the validates_* methods? Here''s how it would look like in practice:

Hi, In Debian/testing (mysql-5.0.20, ruby1.8, rails 1.1.0) Im trying to follow up the fourdaysonrails tutorial, and when putting: validates_uniqueness_of :category, :message => "Already exists" in /myapplication/app/model/category.rb I get: NoMethodError in Categories#create undefined method `category'' for #<Article:0x407f6418> RAILS_ROOT:

Hi, I am getting a method_missing error when I run my application in the production environment unless I set config.cache_classes = false in config/environments/production.rb. This happens in Rails 2.2.2 but not in Rails 2.1.0. The method that is missing is one I used to have before I edited by hand the migration that creates the table associated with the object (I know you are discouraged to do

Hello all, I am trying to run a unit test in a Rails project of mine (Rails 1.2.2, Ruby 1.8.4 (2005-12-24) [i486-linux]), and am running into the following error: 1) Error: test_pattern_splits(PatternSplitTest): TypeError: $_ value need to be String (nil given) /usr/lib/ruby/gems/1.8/gems/activerecord-1.15.2/lib/active_record/ validations.rb:74:in `split''

Hi all, Is there a way to invoke validations at times other than save, create and update? I know that I can do this by writing my own validation checks using errors.add_[blah], but I''d like to leverage the existing validation code. What I have is two sets of fields in a record, set A and set B. Both sets must be validated on record create. However, the trouble is that after

This is probably a Ruby questions but since my issue exists in a Rails validation I thought I''d post here. I have the following validator validates_each :thumbnail, :regular do |record, attribute, value| unless value.nil? && value.valid? record.errors.add( attribute,

Why this code doesn''t work as expected? It raises exceptions everytime. Tried with || operator, too. validates_each :x, :y do |record, attr| record.errors.add (attr, ''between 1 and 100'') if (attr.to_i>100 or attr.to_i<0) end -- They say money can''t buy happiness? Look at the smile on my face... ear to ear, baby!

Hi all, I am trying to upgrade my rails 2 app to 3 and am getting this error when trying to login: NoMethodError in AuthenticateController#authenticate undefined method `to_sym'' for nil:NilClass The stack trace is: activerecord (3.2.2) lib/active_record/validations/uniqueness.rb:26:in `validate_each'' activemodel (3.2.2) lib/active_model/validator.rb:153:in

I have Rails 1.1.2, ruby 1.8.4 and gentoo linux running kernel 2.6.15. Here are the errors: gregg@gregg2 ~/user/DMS $ rake test (in /home/gregg/user/DMS) /usr/lib/ruby/gems/1.8/gems/activesupport-1.3.1/lib/active_support/ ordered_options.rb:2: warning: method redefined; discarding old []= /usr/lib/ruby/gems/1.8/gems/activesupport-1.3.1/lib/active_support/ ordered_options.rb:11: warning: method

I have an Order model with a ''status'' column. What I want to be able to do is validate that the status of the Order is not completed before it is allowed to be deleted. I tried the following method in my Model, but it appears that this only works for an :update or :create on the record. Anyone know how to do this, and if it should be in the model or the controller?

I''m trying to test some code that has validates each and I''ve got a very strange failure Mock ''Book_1027'' expected :store_with_privacy? with (#<Clip:0x1a99b96 @name="Clip_1025">) but received it with (#<Clip:0x1a99b96 @name="Clip_1025">) The Spec it "should check that a book can save a clip" do @user =

ActiveRecord supports composed_of for value objects which is fantastic but one thing that it doesn''t seem to support (or at least I am unable to find any documentation for) validation of the value objects. For example, given the following: class Message < ActiveRecord::Base composed_of :sender, :class_name => ''EmailAddress'' composed_of :recipient,