similar to: Beginner Question.

Displaying 20 results from an estimated 3000 matches similar to: "Beginner Question."

2006 Nov 02
4
Still Having Problems With :through When Going To Same Table... Help... please :-(
I am having a problem with doing a :through that goes back to the same table. The following are my two classes: >>>>> class User < ActiveRecord::Base has_many :spanks has_many :spanked, :through => :spanks, :source => :spanked_user has_many :was_spanked_by, :through => :spanks, :source => :user end class Spank < ActiveRecord::Base belongs_to :spanker,
2006 Feb 14
6
Multiple associations to the same class
Hi, I cannot seem to create associations like this: class Project < ActiveRecord::Base belongs_to :manager, :class_name => ''User'', :foreign_key => ''manager'' belongs_to :liaison, :class_name => ''User'', :foreign_key => ''liaison'' end p = Project.new p.manager => 1 trying to retrieve associated objects
2006 Mar 31
3
Complex Through Statement
Quick Overview: I have an ''Employee'', some ''Merchants'' and some ''Products''. A ''Merchant'' has many ''Products''. An ''Employee'' has multiple ''Merchants'', depending on their relationship. For example, the Employee may be the enrollment contact for one merchant and the
2008 Jun 13
6
Newbie question on has_many
I have two classes: a Widget and a User. The User has an id that is referenced in two places on the Widget: owner_id and operator_id. How should I structure that reference for has_many? Thanks folks - I appreciate any help on this. --David --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Ruby on Rails:
2006 Jul 07
3
Newbie Model question (HABTM?)
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
2006 Mar 29
3
Self-referential many-many joins with :through
I thought I had this nailed but.. now I''m seeing spots.. I''ve included my models below, feel free to ignore them. I''m really just after an example that works. I couldnt find one on the wiki... which is fair enough considering Ricks patch: http://dev.rubyonrails.org/changeset/4022 that fixed them only went through 5 days ago.. Cheers -henster
2006 Jan 09
3
Include with two references of one model of the same table
Hey guys, I just came across this oddity, not sure what to make of it yet, but I think it might be incorrect behavior. When doing a @inst.find(:all, :include => ["hometeam", "awayteam"] ...) hometeam and awayteam are two references from a belongs_to that is of the same model and of the same table. I will get a pgerror stating that "matches", which is
2005 Dec 14
5
belongs_to and multiple foreign keys
Hi all, I''m confused about how I''m supposed to specify a belongs_to relationship when the table includes multiple columns that reference the same parent table. In my case I have a "schedules" table with "opened_by" and "closed_by" columns, that both reference the "users" table. In theory, they can be two different user ids. table
2006 Aug 02
2
Self-Referential has_many :through
Hello all. I am trying to create a self-referential has_many :through. I used the following site as a guide http://blog.hasmanythrough.com/articles/2006/04/21/self-referential-through but it still doesn''t appear to be working. I have two models. Person and Relationship. A person has many contacts (Which is another person) through relationships class Person < ActiveRecord::Base
2007 Jun 09
7
create 2 fk referencing the same table
Hi everyone! I have a problem with defining 2 fk referencing the same table. I have a Program table and a Team table. The Program should have an away team and a home team fk. From my understanding, "the fk column should be named after the class of the target table, converted to lowercase, with _id appended". But, in my case, I have 2 fk referencing the same table. How can I do this?
2005 Dec 19
4
need some help designing my messaging system
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
2006 May 28
7
Self-referential has_many :through relationship
Hi, I have a self-referential has_many :through relationship setup to track relationships between users. Basically relationships are modeled as a join table with an extra column ''relation''. create table relationships ( user_id integer unsigned not null, friend_id integer unsigned not null, relation char(1) not null, ) --- relations --- f = friend r = request to
2006 Mar 07
6
fcgi dispatcher crashing
I''m trying to set deploy an app on apache2 with the fcgid module, but can''t seem to get anywhere. Things work fine with cgi, but when i switch to fcgi, i''m stuck with a ''503: Service Temporarily Unavailable''. There''s no error being logged anywhere, afaik. Trying to run dispatch.fcgi from the shell doesn''t work either. It bombs out,
2006 Jun 29
4
Multiple belongs_to
Let''s say I have a catalog with hotels. Each hotel belongs to a category (4-star, 5-star etc.) This is it''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 <
2006 Mar 15
1
Through method problems with custom foreign_keys
A person has a many company_branches and A company_branch has many people. This join is represented using a "contacts" table. I am using a legacy schema so i am forced into using non-standard rails primary keys. I am using the new through relationship in rails 1.1. p=Person.find(1) b=p.company_branches # gives this error: ActiveRecord::StatementInvalid: OCIError: ORA-00904:
2005 Apr 27
4
has_many syntax
Hi all, I have the following inside of an AR class definition: relationships=ActiveRecord::Base.connection.select_all(my_relationships_sql) relationships.each do |relationship| has_many RelatedItems, :class_name => relationship[''RelatedClass''], :foreign_key => relationship[''ForeignKey''] end This kind of works, but how can I assign the name of the
2007 Oct 16
8
Using multiple foreign keys in views
I have a model, Game, that has_many :teams. There''s a home team and an away team. I created two foreign keys, so each game can have two teams associated with it. Here''s the Team model: class Team < ActiveRecord::Base belongs_to :game, :class_name => ''Game'', :foreign_key => ''hometeam_id'' belongs_to :game, :class_name =>
2006 Apr 21
3
polymorphic,has_many through can not work?
Josh Susser tells in his blog that the opposite direction of polymorphic will get into trouble together with has_many through. This is the url: http://blog.hasmanythrough.com/articles/2006/04/03/polymorphic-through I do that according to Josh Susser''s procedure: class Tagging < ActiveRecord::Base belongs_to :tag belongs_to :taggable, :polymorphic => true belongs_to
2006 Oct 22
3
Keeping DRY - I like a simple life!
Hi, I''m new to Ruby and Rails and I would be very grateful for some advice. I''ve got the following code. class Foo < ActiveRecord::Base include Versionable # Some methods to handle my versioned objects has_many :versions, :class_name => "FooVersion", :foreign_key => "parent_id" belongs_to :curr, :class_name => "FooVersion",
2006 Apr 04
4
Aggregating two objects of the same type
I would like to have a customer that has references to two addresses, a billing address and a shipping address. In a non-rails environment I would have two keys in the customers table, billing_address_id and shipping_address_id to reference the addresses. It appears that ActiveRecord expects the parent id to reside in the child table, regardless of whether the relationship is one-to-one or