This question is related to ruby on rails ActiveRecord associations and how to generate those migrations.
If i have class User < ActiveRecord::Base has_many :books end . class Book < ActiveRecord::Base belongs_to :user
I want ActiveRecord to lookup by a non-id column from a table. Hope this is clear when I give you my code sample.
My data resembles this: class Team < ActiveRecord::Base has_many :persons has_one :leader end class Person < ActiveRecord::Base
I use CakePHP 1.2.6 and have the following relations: Showcase HABTM User belongsTo Galleryitem hasOne Image
Consider the following setup: class Parent < ActiveRecord::Base has_many开发者_开发技巧 :children
I have a User model that has many fights.Fight belongs to User. There are two foreign keys in the fight table that reference back to the user PK -- challenger_id and challengee_id.
class Question < ActiveRecord::Base belongs_to :author end class Author < ActiveRecord::Base has_many :questions
I currently have two models: Campaigns and Videos. Videos belongs to Campaigns and a Campaign has many Videos. In my Campaign form I want to be able to add Videos that have no parent and also be able
I have a Mission model that has_many Task, and the Task belongs_to Mission For security I\'ve made this validation on the Task Model:
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