similar to: Question about has_one

Hi everyone, I have 2 models: class User < ActiveRecord::Base has_one :laboratory, :foreign_key => "pi_id" end class Laboratory < ActiveRecord::Base belongs_to :pi, :class_name => "User", :foreign_key => "pi_id" end I set the following routes (in routes.rb): map.resources :laboratories map.resources :users, :has_one => :laboratory All the

the below... class User < ActiveRecord::Base has_and_belongs_to_many :teams class Team < ActiveRecord::Base has_and_belongs_to_many :users has_one :captain, :class_name => ''User'' produces the error... Mysql::Error: Unknown column ''users.team_id'' in ''where clause'': SELECT * FROM users WHERE (users.team_id = 1) LIMIT 1 i

I''ve got User has_one Shop. Rails is not validating when I tried create_shop or build_shop, neither in the browser nor the rails console. My code: class Shop < ActiveRecord::Base attr_protected :user_id belongs_to :user validates_presence_of :name, :primary_address, :city, :country_code, :currency end class ShopsController < ApplicationController before_filter

I was wondering if anyone could see the error in this littte application I have two models, User and Selection Selection is an extension of the User model so in the User model I have a has_one :selection and in Selection I have a belongs_to :user in my views, i cannot get @user.selection to work but @user works fine. http://www.rafb.net/paste/results/GSBt1e61.html Thanks, r.b

Let me preface by saying i''m a total noob at ruby/rails. :-) For some reason, I am just not grasping the concept of has_one & belongs_to... I''m working on a project that includes user authentication, and 3 different types of user profiles. User profiles are either "fan", "band", or "venue" objects, and user logins are "user"

I have a join table I''m creating with a migration as follows: create_table :read_global_messages, :id=>false do |t| t.column :user_id, :integer t.column :message_id, :integer end So far so good, however I want the primary key to be user_id and message_id. How do I do this? I tried the following, but that doesn''t work: add_index

Hi there, I have a User model and a Profile model. A user has_one profile, and a profile belongs_to a user. The profile model contains a user_id column as the foreign key. The problem comes in when I want a user to register. In the user_controller I have a method that creates the user. I also want the profile model to be filled in with the appropriate user_id foreign key (I don''t care

With a has_one/belongs_to relationship, what''s the best way to guarantee that the belongs_to object gets created and is accessible alongside the has_one object? I *think* the after_create callback is a good choice, but I discovered an oddity while trying it. F''rinstance, if every horse has a carriage: ============ ActiveRecord::Schema.define do create_table(:horses) {|t|

On May 23, 2008, at 11:53 PM, Talin wrote: > In the language I am working on, there are cases where the call flow > graph can affect the type of a variable. Ok. > A simple example is a > "nullable" type (a pointer which is allowed to be NULL), which can be > converted into a non-nullable type via an if-test. So for example if x > is nullable, and I test x != NULL,

In the language I am working on, there are cases where the call flow graph can affect the type of a variable. A simple example is a "nullable" type (a pointer which is allowed to be NULL), which can be converted into a non-nullable type via an if-test. So for example if x is nullable, and I test x != NULL, then inside the conditional block the type of x is no longer nullable.

On May 24, 2008, at 02:53, Talin wrote: > In the language I am working on, there are cases where the call flow > graph can affect the type of a variable. A simple example is a > "nullable" type (a pointer which is allowed to be NULL), which can > be converted into a non-nullable type via an if-test. So for example > if x is nullable, and I test x != NULL, then

I have two objects, QuoteInput and Insured. QuoteInput has one Insured and Insured belongs to QuoteInput. I don''t understand what I''m seeing. I assign an Insured to a QuoteInput. The Insured object has invalid data. I call save! on the quote input. QuoteInput has no validations. I expect two things to happen - 1) an exception should be thrown, indicating that there was a

I''m trying to figure out the best way to set this data model up. I''m still pretty new to Rails, but hopefully I could turn this into something useful to others as well. Here are the basics: User has_many items items are taggable (items habtm taggings, tags habtm taggings) I also want users to be able to order their tagged items. So if I''ve tagged 5 items as

I have two models called entity and user. The entities table has a column called users_id that contains the user id of the user that created the entity. In entity I have... has_one :user ... as I want to be able to show the user who created the entity from the entity object. But this produces the following error... Mysql::Error: #42S22Unknown column ''users.entity_id'' in

I have following tables with following models: users(id, role_id) *has_many :entries* categories(id, category_name) *has_many :entries* entries(id, category_id, user_id) *belongs_to :user, belongs_to :category, has_one :storage* storages(id, title, content, entry_id)* belongs_to :entry*, *has_one :vote* votes(id, count, storage_id) *belongs_to :storage* Now,

- MODEL - class Document < ActiveRecord::Base has_one :user, :class_name => "User", :foreign_key => "fkey", :conditions => "user = ''NAME''" end - GENERATED SQL (per the .log) - SELECT FIRST 1 * FROM table_name WHERE (table_name.fkey IS NULL AND (user_id = ''NAME'')) What I can''t figure out is

Hi, Have an issue with the rails auto complete, it works fine but I don''t know how to find the id element search in the textfield. Here is what I''ve done: <%= text_field_with_auto_complete :user, :ville_name, { :size => 15 }, { :url => formatted_villes_path(:js), :method => :get, :param_name => ''search'' } %> Model: class User <

Hi, When I added this association... class User < ActiveRecord::Base has_one :notify end ...and tried then to update column in User table it will call queries for notify table automatic? Output --------------------------------------------------------------- User Columns (0.041488) SHOW FIELDS FROM `users` User Load (0.001544) SELECT * FROM `users` WHERE (`users`.`nickname` =

I am trying to create a messaging system for my users but I''m having a hard time designing my db. This is what i have in mind, but I am not sure if its the best approach. user has_one inbox user has_one outbox inbox has_many messages outbox has_many messages inbox table user_id outbox table user_id messages table box_id (refers to either inbox or outbox - how?) from_id to_id

I''m trying to build a system for generically storing an object graph, on top of AR itself. The idea is to define one base class, and use AR''s automatic single table inheritance to have it create the right class. Here''s what I have so far: table generic_objects: id int(11) not null auto_increment primary key type varchar(255) table generic_fields: id