similar to: Changing accessor list order

Hello I have 2 models. link.rb has_many :categories, :as => :categorized validates_presence_of :name, :url, :created_at, :category category.rb belongs_to :categorized, :polymorphic => true validates_presence_of :name Everything seems to work. I select my category from a select tag. The problem is i don''t know how to validate if category is for example empty (nothing in a

Okay, this is something I run into a lot and don''t really have a great solution. Here is a simple example: class Blog < ActiveRecord::Base has_many :posts validates_presence_of :name end class Post < ActiveRecord::Base belongs_to :blog validates_presence_of :name validates_presence_of :blog_id end Now, if I want to create a blog and post at the same time I

Hey All, I have a form that submits data to multiple models. I have class Man < ActiveRecord::Base has_many :notes has_many :contacts validates_associated :contacts, :notes validates_presence_of :first_name validates_presence_of :last_name class Contact < ActiveRecord::Base belongs_to :man validates_presence_of :contact_info class Note < ActiveRecord::Base

fixes regression bug that got recently introduced --- src/app/models/network.rb | 2 ++ src/app/models/physical_network.rb | 2 -- src/app/models/vlan.rb | 2 -- 3 files changed, 2 insertions(+), 4 deletions(-) diff --git a/src/app/models/network.rb b/src/app/models/network.rb index a4b1b8b..89f9876 100644 --- a/src/app/models/network.rb +++

I am trying to create a record with association. Within the create method, I would also like to pre-populate dependent (has_many) records from a template in the database. The child records are <u>mysteriously rolled back </u> if I insert them in a loop. If I try to insert a single child record, it works.I have read the books and tried to google my way out of this but am at a dead

Hi All, I have some strange problem which appears only on heroku hosting 2.3.5 default stack (not on my local computer) I have some models. Here they are: class Contact < ActiveRecord::Base belongs_to :user belongs_to :type, :class_name => "ContactType", :foreign_key => "type_id" validates_presence_of :name, :on => :create, :message =>

Howdy, I''m a Rails beginner working on my first significant project with RoR. I''m trying to figure out how to validate a foreign key (you know, make sure the row actually exists.) However, validates_associated doesn''t seem to be what I want to use, nor does it work... -- BEGIN -- class City < ActiveRecord::Base has_many :schools belongs_to :state

Category.has_many :products Let''s say a product must belong to a category. I know it is recommended to do the following: class Product validates_presence_of :category_id end But, as we all know, this is a pain for new records, meaning what if the associated category is a new record? I''ve been meaning to ask this, but what''s wrong with doing the following: class

I have been trying to model a labeled graph using ActiveRecord (trunk version). Basically, I have a ''Node'' model which represents a node linking to other nodes. Links (aka edges) are labeled (i.e., have a ''label'' attribute and other behavior). Thus I decided to model edges as an ''Edge'' model and use a ''has_many :trough''

I''m trying to assign a parent foreign key value using collection_select from my child "new" form. The problem I''m having is if I do not make a selection, I get the following error instead of the Rails validates_presence_of error: You have a nil object when you didn''t expect it! You might have expected an instance of Array. The error occurred while evaluating

I have two model classes: class Item < ActiveRecord::Base belongs_to :channel, :counter_cache => true validates_presence_of :channel end class Channel < ActiveRecord::Base has_many :items, :dependent => true end In the Channel controller I have variable channel.items, an Array of Items. I would like to use the Array find method. However, channel.items.find() is a Rails

Hi, I think I''m missing some fundamental information here so hopefully someone can help me. I have a model Club which has many members, members of course belong to a Club. I''d like to ensure that when a members is saved (saved/created/updated) only valid club_id''s are accepted. I have a Club model (simplified) like this: class Club < ActiveRecord::Base

I have a form with 3 fields: user_id, email and password. All 3 fields are required, so I have a "validates_presence_of :user_id, :email, :password" in my model. Works, but the validation errors show up in a different order than I specificed in the validates_presence_of statement. Is there a way to specify the order in which the validations (and corresponding error messages) should

Hello, I''m not sure if I''m missing something blindingly obvious here. All the relationships that Rails comes with assume 0..n, yes? It''s not a strict 1 to 1 or 1 to n because it''s optional. My question is this - What is the best way to implement a required relationship? For example, if I require that a comment is made by a user (a user has many

Hello, I''ve come across an issue that I''m sure is a bug when using after_create with a has_one association, but I''m not 100% certain if I''m missing something. This is pretty much exactly the code I''m using. Two simple classes (Account and Contact) and I create the contact after I create an account (via after_create). I''m not passing in a

I''m working on a bugtracker application in rails. I have a Bug model and I want to add a Priority to the mix. A Bug can have one priority. I generate a Priority model, modify my Bug model with a belongs_to :priority and create my migration like so: class CreatePriorities < ActiveRecord::Migration def self.up create_table :priorities do |t| t.column :name, :string,

Hi all, I have a relationship (no really!) class RiskMatrix < ActiveRecord::Base has_many :severities, :order => :position, :uniq => true end class RiskFactor < ActiveRecord::Base belongs_to :risk_matrix validates_presence_of :descriptor, :example validates_uniqueness_of :descriptor, :example, :scope=> :risk_matrix_id end class Severity < RiskFactor

Has anybody noticed validates_uniqueness_of missing in rails 3.0 rc2? I''m not sure if this is a bug or I''m just doing something wrong. Here''s what I''m doing. Class 1: class Title < ActiveRecord::Base validates_length_of :language, :is => 3 validates_uniqueness_of :language, :scope => :book_id validate :language,

Regarding validates_associated... Let''s say I have: article belongs_to author But for whatever reason, I want an article to also be written anonymously and therefore not require an author. Then I have: Article: belongs_to :author validates_associated :author But I DON''T have validates_presence_of. What I want to do is validate that an author is valid --if it is

I am creating a database for movies (films) and television shows (shows) that will have has_and_belongs_to_many relationships with the pictures table. CREATE TABLE screenshots ( id serial NOT NULL, filename character varying NOT NULL, content_type character varying NOT NULL, primary key (id) ); CREATE TABLE films ( id serial NOT NULL, name character varying NOT NULL,