search for: belongs_to

Suppose I have one table: states id statename And I have two other tables that contains states: houses id color state_id places id place_name state_id How would my model relationships look like? class State < ActiveRecord::Base belongs_to house belongs_to place end class House < ActiveRecord::Base has_one state end class Place < ActiveRecord::Base has_one state end Is that right? Can I have a model that belongs to multiple models? -- Vincent H Gov -------------- next part -------------- An HTML attachment was...

I know you get a lot of questions like this, but I couldn''t find one which answers exactly what I''m after. I''m reasonably new to rails, and I''m having a bit of trouble with when to use belongs_to. On the rails wiki ( http://wiki.rubyonrails.org/rails/pages/belongs_to), it says "In general, the Foo model belongs_to :bar if the foo table has a bar_id foreign key column." But according to ForumExample ( http://wiki.rubyonrails.org/rails/pages/ForumExample) doesn''t always do...

I am very new to Rails. After skimming through the documentation over the last several days, I''m struggling with the appropriate use of belongs_to. My main question is whether a model can have several belongs_to declarations. I have not seen any examples online show that usage. If it can, then I would like to know if it''s poor form or what the best practices are around it. The documentation says that the foreign key should be...

...''s official category.However, there is also a category that users assign and a category that "independent reviewers" assign. So I have this: hotels { id, category_id, reviewer_category, user_category } categories { id, name } class Hotel < ActiveRecord::Base belongs_to :hotel_class # this is fine and ok # can I also something like this, however? belongs_to :hotel_class, :foreign_key => ''reviewer_category'' belongs_to :hotel_class, :foreign_key => ''user_category'' end I wou...

I have the following models: class Card < ActiveRecord::Base belongs_to :deck belongs_to :front, :polymorphic => true belongs_to :back, :polymorphic => true end class TextContent < ActiveRecord::Base has_one :card, :as => :front has_one :card, :as => :back end The conflicting has_one declarations don''t work....

...gt; <td><%= (position.state.name) %></td> <td><%= (position.entered_on_date) %></td> </tr> Here is the method in the controller: def positionslist @positions = (Position.find_all) end The model: class Position < ActiveRecord::Base belongs_to :category belongs_to :contactmethod belongs_to :edureq belongs_to :expreq belongs_to :postlength belongs_to :securityclear belongs_to :state def self.find_all find(:all) end end Maybe something jumps out at someone ? TIA Stuart

I''m just getting into RoR, coming from a long PHP background. So far I LOVE IT! I''m hitting a roadblock with updating my mysql database. For simplicities sake, I have 2 tables and here are the relevant columns. Table Users id name email Table Issues id createdby assignedto reportedby In my models I have everything mapped properly I believe. When I try to update the

belongs_to :through Why is that not possible? We should have: Street belongs_to :city belongs_to :country, :through => :city -- Posted via http://www.ruby-forum.com/.

I''ve got two tables set up - Things and Users where Users have many things and Things belongs to Users. They''re connected by Things.user_id => User.id and Things.updated_by_id => User.id both in the Things model using Belongs_to and custom foreign key for one of them. Problem is when I''ve got the updated_by_id belongs_to I can''t add Things using Things.updated_by_id = session[:user] I get a fixnum error. But when I remove the foreign key for updated_by_id I can''t do things.updated_by_id.user...

...about habtm in rails (especially when using acts_as_habtm_list) vs. going the :through route. Please tell me I am thinking too hard! My current take: -*-*-*-*-*-*-*-* class Person < ActiveRecord::Base has_many :things has_many :collections end class Thing < ActiveRecord::Base belongs_to :person has_and_belongs_to_many :collections, :order => ''position'' end class Collection < ActiveRecord::Base belongs_to :person has_and_belongs_to_many :thing_collections, :order => ''position'' end class ThingCollection < ActiveRecord::Ba...

...tutorial by John McCreesh. He writes on Items and Notes (for his Todo example). The items table has a key to the note_id. However (and this in particular I''m trying to understand), the Models which accompany the tables (item & note) are like: class Item class Note belongs_to: note # nothing here really . . . . end end It only struck me that I have the feeling that "it" (belongs_to) should be the other way around. I''m actually looking for some page which spills out the r...

...ations # invitations to other users'' events has_many :events, :through => :invitations # all events the user is invited to #HERE IS THE PROBLEM has_many :events # the events that the user is the owner of end event.rb class Event < ActiveRecord::Base has_many :invitations belongs_to :user end invitation.rb class Invitation < ActiveRecord::Base belongs_to :user belongs_to :event end I am not sure what is actually happening but my console tests are not going very well. Maybe i should just go to bed but... -- Posted via http://www.ruby-forum.com/.

Suppose I have a belongs_to relationship and the thing it belongs to, belongs in turn to something else. For example, I would like to do: belongs_to :city belongs_to: :county, :through => :city While it is not too much trouble to do obj.city.county, there are times when I need to iterate through the attributes and inc...

I have 3 tables keywords (keywords attached to a file) files (info about the file) paths (path for the file) [This is a legacy database, so I can''t change this] keyword belongs_to file and file belongs_to path. Users need to be able to search the keywords, but they only have access to certain volumes, so the results need to be limited by the path. I also need to show paging, like "Results 11 - 20 of 315", and possible sort the results. I guess I can do a search...

Hi. I''ve tried to redefine the method belongs_to in ActiveRecord::Base, so every time a model is defined as belonging to :attachment, it should have some additional methods. I tried to do an alias of belongs_to, but this was not successful. The error message in Webrick was > Booting WEBrick... ./script/../config/../lib/ActiveRecordExtensions....

Every once in a while, I pipe up and whine that "belongs_to" should really be ''refers_to" [http://dev.rubyonrails.org/ticket/2130]. It''s time again. I''ve got a bunch of stuff going onto eBay, so, like any good engineer, I don''t just post it manually: I design a Rails-based inventory database that creates a sem...

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 def...

This works : class Recipe < ActiveRecord::Base belongs_to :category end But (when I add validation) this does not work : class Recipe < ActiveRecord::Base belongs_to :category validates_length_of :category, :within => 6..20 validates_uniqueness_of :category, :message => "already exists" end thank you -- View this...

...than 1 step away from the parent object, but I kind of understand why it can''t. Now, on to my "discovery"... Completely contrived example follows: I have the following Models: class Author < ActiveRecord::Base has_many :posts end class Post < ActiveRecord::Base belongs_to :author has_one :category end class Category < ActiveRecord::Base belongs_to :post end There are many authors in the database that no posts, and there are several posts in the database that have no category. If I do: @authors = Author.find(:all, :include => :posts) Every entry...

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