rails inverse_of
跳到 belongs_to Association Reference - The belongs_to association creates a one-to-one match with another model. In database terms, this association ... ,belongs_to 宣告必須使用單數形式。上例若使用複數形式，會報 "uninitialized constant Order::Customers" 錯誤。這是因為Rails 使用關聯名稱來推出類別名稱。 , Ever seen the :inverse_of option on an association and wondered what it did and why it was there? class Criminal < ActiveRecord::Base ..., In this article we are going to discuss how N+1 performance problems can be introduced when using custom association names between ..., 作用. class Post < ApplicationRecord has_many :comments end class Comment < ApplicationRecord belongs_to :post end. 测试： comment ...,When you have two models in a has_many , has_one or belongs_to association, the :inverse_of option in Rails tells ActiveRecord that they're two sides of the ... ,From the documentation, it seems like the :inverse_of option is a method for .... From Rails 4.1, inverse_of will be set automatically, if we uses foreign_key or ... , 问题缘由. 我对 inverse_of 的困惑并不是在实际使用中产生的，即使不了解它也能在项目中愉快的玩耍，这似乎又旁证了Rails 是一个很智能的框架。, 看到ruby-china源码里面，很多源码里面貌似都有可是ruby on rails tutorial 里面 ... belongs_to :post belongs_to :tag, :inverse_of => :taggings end., As of version 4.1, Rails will try to automatically set the :inverse_of option for you (pull request). Given our example with Criminal having a ...
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 rails inverse_of 相關參考資料
Active Record Associations — Ruby on Rails Guides
跳到 belongs_to Association Reference - The belongs_to association creates a one-to-one match with another model. In database terms, this association ... https://guides.rubyonrails.org Active Record 關聯— Ruby on Rails 指南
belongs_to 宣告必須使用單數形式。上例若使用複數形式，會報 "uninitialized constant Order::Customers" 錯誤。這是因為Rails 使用關聯名稱來推出類別名稱。 https://rails.ruby.tw Exploring the `:inverse_of` Option on Rails Model Associations | Viget
Ever seen the :inverse_of option on an association and wondered what it did and why it was there? class Criminal < ActiveRecord::Base ... https://www.viget.com Improving performance using Rails' `inverse_of` feature - Medium
In this article we are going to discuss how N+1 performance problems can be introduced when using custom association names between ... https://medium.com Rails inverse_of 研究· Ruby China
作用. class Post < ApplicationRecord has_many :comments end class Comment < ApplicationRecord belongs_to :post end. 测试： comment ... https://ruby-china.org Rails: When to use :inverse_of in has_many, has_one or belongs_to ...
When you have two models in a has_many , has_one or belongs_to association, the :inverse_of option in Rails tells ActiveRecord that they're two sides of the ... https://makandracards.com What does inverse_of do? What SQL does it generate? - Stack Overflow
From the documentation, it seems like the :inverse_of option is a method for .... From Rails 4.1, inverse_of will be set automatically, if we uses foreign_key or ... https://stackoverflow.com 关于inverse_of 的困惑与探究· Ruby China
问题缘由. 我对 inverse_of 的困惑并不是在实际使用中产生的，即使不了解它也能在项目中愉快的玩耍，这似乎又旁证了Rails 是一个很智能的框架。 https://ruby-china.org 请问有哪位能讲讲inverse_of？ · Ruby China
看到ruby-china源码里面，很多源码里面貌似都有可是ruby on rails tutorial 里面 ... belongs_to :post belongs_to :tag, :inverse_of => :taggings end. https://ruby-china.org 關於ActiveRecord 的inverse_of « Kuro_Sean's Blog
As of version 4.1, Rails will try to automatically set the :inverse_of option for you (pull request). Given our example with Criminal having a ... http://kuro-sean-blog.logdown. |