I\'d like to be sure if vestal_versions does support versioned associations (i开发者_开发知识库t seems like it doesn\'t) before switching out to another versioning gem that can support versioned assoc
I am a great fan of code generation (from UML) and coming from the Java world, I wonder how I would implement automated bi-directional association management in Objective-C.
I have an Order object to represent a Prospective Order/Receipt. This is an entity. It has an identity.
I 开发者_JAVA百科have stumbled on an interesting challenge regarding active record associations:
I have an application in which I need to implement the faceted search functionality on one of the fields of the associated models and it does not seem to be working. Here is a brief context:
Consider the following setup: class Parent < ActiveRecord::Base has_many开发者_开发技巧 :children
When I search a model which \"has many\" of something else. For example a blog post has many categories.
In my application I have 2 classes like this: class City < ActiveRecord::Base has_many :events end class Event < ActiveRecord::Base
I have three tables : Units, Offers and Agents with following associations Unit hasMany Offers Offer belongsTo Agent
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.
加载中,请稍侯......