similar to: Validations and has_many :through (Join Models)

Let''s say I have the model class Reader and Magazine, connected by join model Subscription. It looks something like this class Reader < ActiveRecord::Base has_many :subscriptions, :dependent => :delete_all has_many :magazines, :through => :subscriptions validates_presence_of :name end class Magazine < ActiveRecord::Base has_many :subscriptions, :dependent =>

Hi, I''m somewhat of a Rails newbie and am trying to understand how to formulate n-way (3 or 4 way) joins in Rails (where the join tables contain extra data as well.) Let me give you my basic entities: foos id - pk name - unique bars id - pk name - unique bazs id - pk name - unique frozs id - pk name - unique then i have two separate join tables: foos_bars_bazs - 3 way join

Hello, I''m wanting to use Mocha and Stubba for my tests in place of the default Rails testing with fixtures. I have the following class: class Person < ActiveRecord::Base validates_uniqueness_of :email end and am wondering how I can test to ensure that the validates_uniqueness_of validation is running. Any ideas? -Jonathan

My model is very simple, it''s mostly just a join table that represents which tournaments a user has registered for. class Registration < ActiveRecord::Base belongs_to :user belongs_to :tournament validates_presence_of :user_id, :tournament_id validates_uniqueness_of :user_id, :scope => :tournament_id end the validates_uniqueness checks to make sure there''s no

hi, i have a model with 2 validations on a field example: validates_presence_of :email validates_length_of :email, :within => 6..100 #r@a.wk validates_uniqueness_of :email validates_format_of :email, :with => Authentication.email_regex if i do the submit of form for a new object of the model with a blank mail i receive 4 errors. In this case i want receive

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I''m working on a Rails app that needs to expose a RESTful web service. I''m curious to know some of the best practices as it relates to RESTful API design. Let''s say I have a set of related objects on the server side. I''ll use the venerable subscribers, subscriptions and magazines example to lay it out. class Subscriber < AR has_many :subscriptions

Hello I''ve been using Acts_as_Parnoid for a while and it has been working well but I am now having a slight issue with it. I have a company table were I would like to use validates_uniqueness_of :company_name. This validation works if a company exists in the database and has not been deleted. However, I also would like the validates_uniqueness_of to work if a company has

Hi folks, I have a question regarding validates_uniqueness_of, and similar before-filter-like events attempting to guarantee some DB state prior to modification. >From my reading of ActiveRecord, validate_uniqueness_of appears to cause a SELECT on the underlying table attempting to ensure that a record with ID(s) specified in the validates_uniqueness_of statement is not already present, prior

I''ve looked at the validates documentation and it appears that validates_uniqueness_of works on only one field at a time. So I can, for example, validate that "sam" is unique to the record set, and that "smith" is unique to the record set. My problem is that each record includes two fields, the _combination_ of which must be unique to the record set, but each of

I have some code in my controller which looks like this: if request.post? and @account.save and @user.save ... end and in my Account and User models I have many :validates, like so account.rb validates_presence_of :subdomain, :on => :create validates_uniqueness_of :subdomain, :on => :create, :message => "is already being used" validates_exclusion_of

I need to modify the validates_uniqueness_of function so that it will check that the string is unique but only in its own category. For example right now I have validates_uniqueness_of :title so let''s say I have the :title "Title 1" already in the database with the :category of "1" then if i wanted to enter the :title "Title 1" in the database again BUT

I apologize if this is a very simple question; I''ve searched the forums, wiki, Google, and Agile Web Development with Rails to no avail. Is there a way to put conditional validation in the model? For instance, if I want to limit items a user can add unless the user is an admin? My current code is: validates_uniqueness_of :user_id, :scope => ''event_id'',

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:

I would like to validate the uniqueness of two columns together. I have last and first names as separate columns. What is the Rails Way to do this? Thanks, Jared Nuzzolillo _______________________________________________ Rails mailing list Rails-1W37MKcQCpIf0INCOvqR/iCwEArCW2h5@public.gmane.org http://lists.rubyonrails.org/mailman/listinfo/rails

Does anyone know if Rails is supposed to validate associated objects on creation? Say you have a User model, with has_many posts, and a Post model which belongs_to user. Further, the Post model has a validates_uniqueness_of :title. u = User.find(1) # this should pass u.posts.create :title => ''my new post title'' # this should fail u.posts.create :title => ''my

I have the following ActiveRecord objects: class Recipe < ActiveRecord::Base has_many :ratings, :dependent => true . . . end class Rating < ActiveRecord::Base validates_uniqueness_of :created_by, :scope => :recipe_id belongs_to :recipe, :counter_cache => true . . . end The created_by field on Rating is implemented as a "magic" field similar to this:

Hello all, I am working through the depot example in the rails book. If I add a validates_uniqueness_of to a string column in the model, and then try to create a record with a number in this string column I get an SQL error. Looks like the SQL generated to test for uniqueness does not quote the value if it''s numeric even though it''s comparing against a varchar column. It does

Hi, I am trying to restrict duplicate has_and_belongs_to_many associations. I tried to find support for a association validation for duplicates but couldn''t find anything. I understand I could use :uniq=>true on the model association but this would only prevent it from displaying duplicates, I want to stop duplicate associations being inserted in the first place. I have a vague