rails model source
How to use the methods added to your models by creating associations. ... The :source_type option specifies the source association type for a has_one :through ... ,有了Active Record 關聯，可以告訴Rails Model 之間的關聯，來精簡上例。以下是簡化後的程式碼： ... :source 選項給 has_one :through 關聯指定來源關聯名稱。
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 rails model source 相關參考資料
A Guide to Active Record Associations - Ruby on Rails Guides
class Order < ActiveRecord::Base belongs_to :customer end ... The :source option specifies the source association name for a has_one :through association. https://guides.rubyonrails.org Active Record Associations — Ruby on Rails Guides
How to use the methods added to your models by creating associations. ... The :source_type option specifies the source association type for a has_one :through ... https://guides.rubyonrails.org Active Record 關聯— Ruby on Rails 指南
有了Active Record 關聯，可以告訴Rails Model 之間的關聯，來精簡上例。以下是簡化後的程式碼： ... :source 選項給 has_one :through 關聯指定來源關聯名稱。 https://rails.ruby.tw ActiveRecord::Associations::ClassMethods
Since the association adds a method with that name to its model, using an ... :through queries where the source association is a polymorphic belongs_to . https://api.rubyonrails.org ForeignKey vs ClassName vs Source in Rails Associations ...
To get it pointing to the right table, specify the class_name and foreign_key in the User model. class User < ActiveRecord::Base has_many :authored_posts, ... https://medium.com Rails: difference between :source => ?? and :class_name ...
2016年10月10日 — They are conceptually the same, just need to be different for different uses. :source is used (optionally) to define the associated model name ... https://stackoverflow.com Rails: has_many的參數. Rails是一個非常多預設值的框架 ...
source. 另外一個情況是當我們要透過中間表去關聯model間的多對多關係時，我們可以這樣寫： class ArticleCategory < ApplicationRecord belongs_to :article https://medium.com Ruby on Rails 實戰聖經| ActiveRecord - 資料表關聯
搭配 through 設定使用，當關聯的名稱不一致的時候，需要加上 source 指名是哪一種物件。 class Event < ApplicationRecord has_many :event_groupships ... https://ihower.tw Understanding :source option of has_onehas_many through ...
2011年1月8日 — class Pet < ActiveRecord::Base has_many :dogs end class Dog ... With :source , we're telling Rails to look for an association called :breeds on ... https://stackoverflow.com |