similar to: has_one, belongs_to - I am just not getting it

Hello, I have two classes that are self explanatory and are listed below. class User < ActiveRecord::Base belongs_to :account end class Account < ActiveRecord::Base has_one :account_owner, { :dependent => true, :class_name => "User", :conditions => "is_account_owner = 1" } has_many :users end In the signup controller when an account is created one user

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Hi. My model data is the following: - Place - User - Checkin Instead of having a Checkin that belongs to both User and Place, I chose to add another model, Program, that allows to list all the places a user can checkin into, and also hide the checkins he''s no longer involved in (= the user sign out of a specific program). That give me crazy relationships: Program has_many Checkin

Hi All, Probably this has been asked numerous times, I apologize already! Can somebody point me to a good tutorial on how Rails works with relations? I know about database design and normalization, I also know about programming in general (and OOP for that matter). Only thing I can say is that I''m following the "Four days on Rails" tutorial by John McCreesh. He writes

I''ve been using this sort helper to have sortable tables. http://wiki.rubyonrails.com/rails/pages/Sort+Helper I''ve encountered a situation where I need to sort a column that is not part of a table, but it''s related table. For example, say I have db tables called foos and bars. Foos have fields called name and title. And bars have fields called note and foo_id. Foos

I have two models (Car and Driver) and a combobox to select which driver belongs to which car. I want the combobox just show the objects that have not yet been associated. # vehicle belongs_to: driver # driver has_one: vehicle # simple_form # vehicle/_form.html.haml = f.association: driver, label_method: :name, value_method: :id How to ensure validation before saving, to avoid problems of

How can I save two models that have has_one and belongs_to relationship to each other? I want to save both the models by using script/console. TIA. --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Ruby on Rails: Talk" group. To post to this group, send email to

So, I have 2 models A and B that share 5 common attributes and all other attributes are different. So I wanted to extract these 5 out into one common table and use has_one, belongs_to to knit it back together. So now there are 3 tables with 1 having the shared properties, we''ll call this table C. Table A id dollar_amount Table B id quantity_on_hand Table C id version My question is,

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

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|

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

There really doesn''t seem to be a *declarative* way to define a default value for belongs_to and has_one associations class Person < ActiveRecord::Base belongs_to :address end p = Person.new p.address.city = ''Atlantis'' # Bummer! Of course, there''s an easy way to avoid this class Person < ActiveRecord::Base belongs_to :address

Okay I''ve been working on a little biding system. In my model I have class Item < ActiveRecord::Base has_many :bids def highest_bid @bid = 0 self.bids.each do |bid| if @bid == nil @bid = bid.max else if bid.max > @bid @oldbid,@bid = @bid,bid.max end end end if @oldbid == 0 "#{@bid} - #{@oldbid+1} = #{@bid -= @oldbid+1}" else dif =

in the mean time i am using a checkbox like this : <input type="checkbox" name="var[car]" <%= var.car ? ''checked'' : '''' unless @var == nil %> /> but i am sure there is something better than this in rails like <%= checkbox_tag ''var'', ''car'', :checked => true %> but this is not

While I''m happy to continue talking about the vagaries of Rails deployments, I also need to actually build apps. :) I may have discovered a bit of a problem with :include as it applies to has_one associations. First, let me say that I''m a big fan of :include for reducing the number of SQL calls. There are times when I wish it could go more than 1 step away from the parent

All, If I have a table that has several discrete fields that all point to the same associated field, how do I model it. Specifically, If I have a project table that has 2 fields: specifying_company, and responsible_company. And one table of associated companies, how do I do the :belongs_to / :has_many stuff ie. For a given project company A may be writing the spec, but company B may be paying

I am displaying some data on one of my pages by calling a for loop: for comment in @comments and then diplaying it: <%= link_to comment.send(''comment_subject''), :controller =>''comments'' , :action => ''show'', :id => comment, :class => ''comment'' %> Works great, but it displays things from oldest to

Hello, I have a form that submits data to two related models/tables. One is Customer the other is Address. Validation for Customer works fine but not for the Address. Class Customer < ActiveRecord::Base has_one :address validates_presence_of :login, :password, :email validates_associated :address end Class Address < ActiveRecord::Base belongs_to :customer validates_presence_of

INVITATION BETA EMAIL I have in the email that the app send to friend''s email address ------------------------ You are invited to ExampleApp.com click below to signup http://localhost:3000/signup.efweiuvwnjernfwkefwebhsohj ------------------------ But I have a dot in the url beteween http://localhost:3000 and the token I wish the following url

I''m having a difficult time wrapping my head around a set of models and their associations and seeing how they map into Rails. I''ll try to lay out my problem using the has_many and belongs_to structures. I have a RuleSpace, a Rule, and a Subject. A RuleSpace has_many Rules A RulesSpace has_many Subjects through Rules A Rule belongs_to (many) RuleSpaces A Rule has_many