rails belongs_to class_name
這篇文章記錄一下在rails裡面使用has_many方法時，實務上常用到的參數。. “Rails: ... belongs_to :author, class_name: "User", foreign_key: "user_id" end. ,class_name、foreign_key and primary_key; source; scope 參數; inverse_of; dependent: :destroy、dependent: :nullify; belongs_to optional: true. , The belongs_to association supports these options: :autosave; :class_name; :counter_cache; :dependent ... ,Options. :class_name. Specify the class name of the association. Use it only if that name can't be inferred from the association name ... , class_name 、 dependent 、scope條件等設定，都和has_many一樣。 belongs_to 的設定. optional. 在Rails 5.1 之後的版本， ... ,2016年9月1日 — You are doing the right thing, except class_name should be a String , not Class. class UserEntry < Entry belongs_to :target, class_name: 'User' ... ,You need to specify both :class_name and :foreign_key , for example: belongs_to :admin, :class_name => "User", :foreign_key => "user_id". ,2010年4月22日 — class User < ActiveRecord::Base has_many :books, :foreign_key => 'author_id' end class Book < ActiveRecord::Base belongs_to :author, ... ,class Employee < ActiveRecord::Base. has_many :subordinates , class_name: "Employee" ,. foreign_key: "manager_id". belongs_to :manager , class_name: ... , The class_name of the attachable is passed as a String . class Asset < ActiveRecord::Base belongs_to :attachable, polymorphic ...
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 rails belongs_to class_name 相關參考資料
Rails: has_many的參數. Rails是一個非常多預設值的框架 ...
這篇文章記錄一下在rails裡面使用has_many方法時，實務上常用到的參數。. “Rails: ... belongs_to :author, class_name: "User", foreign_key: "user_id" end. https://medium.com [Day18] Ruby on Rails - Model 關聯性， 參數補充 ... - iT 邦幫忙
class_name、foreign_key and primary_key; source; scope 參數; inverse_of; dependent: :destroy、dependent: :nullify; belongs_to optional: true. https://ithelp.ithome.com.tw Active Record Associations — Ruby on Rails Guides
The belongs_to association supports these options: :autosave; :class_name; :counter_cache; :dependent ... https://guides.rubyonrails.org belongs_to (ActiveRecord::Associations::ClassMethods ...
Options. :class_name. Specify the class name of the association. Use it only if that name can't be inferred from the association name ... https://apidock.com Ruby on Rails 實戰聖經| ActiveRecord - 資料表關聯
class_name 、 dependent 、scope條件等設定，都和has_many一樣。 belongs_to 的設定. optional. 在Rails 5.1 之後的版本， ... https://ihower.tw Rails: get belongs_to class_name - Stack Overflow
2016年9月1日 — You are doing the right thing, except class_name should be a String , not Class. class UserEntry < Entry belongs_to :target, class_name: 'User' ... https://stackoverflow.com Rails belongs_to association (with :class_name) returns nil ...
You need to specify both :class_name and :foreign_key , for example: belongs_to :admin, :class_name => "User", :foreign_key => "user_id". https://stackoverflow.com belongs_to with :class_name option fails - Stack Overflow
2010年4月22日 — class User < ActiveRecord::Base has_many :books, :foreign_key => 'author_id' end class Book < ActiveRecord::Base belongs_to :author, ... https://stackoverflow.com Active Record 關聯— Ruby on Rails 指南
class Employee < ActiveRecord::Base. has_many :subordinates , class_name: "Employee" ,. foreign_key: "manager_id". belongs_to :manager , class_name: ... https://rails.ruby.tw ActiveRecord::Associations::ClassMethods - Ruby on Rails API
The class_name of the attachable is passed as a String . class Asset < ActiveRecord::Base belongs_to :attachable, polymorphic ... https://api.rubyonrails.org |