Ruby on Rails的：创建一个belongs_to的关联模型项 [英] Ruby on rails: Creating a model entry with a belongs_to association

问题描述

我想加在我的数据库中的新条目，有一个belongs_to的关系的典范。我有2个型号，乔布斯和客户端。

这是很容易找到如何建立这两个（使用的has_many和belongs_to的）之间的关联的教程，但我似乎无法找到的地方实际使用关联的任何实例。

在我的code，我试图创建第一个客户端一个新的工作。该工作模式有CLIENT_ID一个属性，我知道我可以很可能只是手工填写属性，但必须有一些红宝石约定很容易做到这一点。

  Job.create（：CLIENT_ID =＆GT; 1：主题=＆gt;中测试：描述=＆gt;中这是一个测试）
 

我可以很容易地把在我的code，但我觉得Ruby有一个更好的方式来做到这一点。这里是我的模型设置方式

 类招聘＆LT; ActiveRecord的::基地
  attr_accessible：actual_time，：assigned_at，：CLIENT_ID，：completed_at，：estimated_time，：位置，：responded_at，：runner_id，：状态：主题，：说明
  belongs_to的：客户端
结束一流的客户＆LT;用户
    的has_many：工作
结束类User＆LT; ActiveRecord的::基地
  attr_accessible：姓名，：细胞：电子邮件：preF结束
 

解决方案

就叫创建在工作集合客户端的

  C = Client.find（1）
c.jobs.create（：主题=＆gt;中测试：描述=＆gt;中这是一个测试）
 

I am trying to add a new entry in my database for a model that has a belongs_to relationship. I have 2 models, Jobs and Clients.

It was easy enough to find tutorial on how to set up the association between these two (using has_many and belongs_to), but I can't seem to find any examples where the association is actually used.

In my code, I am trying to create a new job for the first client. The jobs model has an attribute for client_id, and I know I can probably just manually fill the attribute, but there has to be some ruby convention to easily accomplish this.

Job.create(:client_id => 1, :subject => "Test", :description => "This is a test")

I can easily put that in my code, but I feel like ruby has a better way to do this. Here is the way my models are setup

class Job < ActiveRecord::Base
  attr_accessible :actual_time, :assigned_at, :client_id, :completed_at, :estimated_time, :location, :responded_at, :runner_id, :status, :subject, :description
  belongs_to :client
end

class Client < User
    has_many :jobs
end

class User < ActiveRecord::Base
  attr_accessible :name, :cell, :email, :pref

end

解决方案

Just call create on the jobs collection of the client:

c = Client.find(1)
c.jobs.create(:subject => "Test", :description => "This is a test")

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