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如何为可以是主机，客户或两者的用户建模？滑轨

[英]How to model a user that can be a host, customer, or both? Rails

原文 2018-07-19 17:44:30 4 1 ruby-on-rails

I am trying to rebuild something like airbnb as a side project and I'm wondering how to model a User entity that can be either a Host , a Customer , or both. 我正在尝试将诸如airbnb之类的内容作为辅助项目进行重建，并且我想知道如何对可以是Host或Customer或两者的User实体进行建模。 How would one represent this? 一个人怎么表示呢？

The issue with polymorphism is that the User can only either a Host or a Customer but not both. 多态性的问题在于， User只能是Host或Customer而不能同时是两者。

Is the best way to do this via two has-one relationships? 通过两个一对一的关系来做到这一点的最好方法是吗？

1 个解决方案

The way I would approach this problem is by having three models: User , Rental ,(home to rent), and RentalBooking (the booking a user makes) 我要解决此问题的方法是采用三种模型： User ， Rental ，（房屋出租）和RentalBooking （用户进行的预订）

A User has many Rental 's, and the Rental "host" would be determined by whoever owns the Rental (The rentals user_id). 一个User有许多Rental ，并且Rental “主机”将由拥有该Rental （租赁user_id）确定。 The RentalBooking would have a rental_id and a user_id (User ID being the customer). RentalBooking将具有一个rental_id和一个user_id （用户ID为客户）。

Personally, I wouldn't necessary have a give the user a role of Host or Customer , but this information would easily be presentable in each booking or rental post. 就个人而言，我不必让用户担任Host或Customer的角色，但是此信息可以轻松地在每个预订或租赁帖子中显示。

如何在Rails中访问模型上的当前主机和端口？ - How can I access current host and port on a model in Rails?

如何在Rails的模型中添加客户验证器 - how to add customer validator in rails's model

如何在 Rails 中为用户使用客户哈希函数？ - How use customer hash function for user in rails?

如何在Rails4的顶级模型和关联模型上编写.includes（）和.where（）？ - How can I write an .includes() plus .where() on both top model and associated model in Rails4?

如何允许管理员用户访问客户用户对象导轨 - How to allow Admin user to access customer user objects rails

跟踪客户对模型的特定偏好 - Rails customer specific preferences on model

如何在Rails中为模型的哈希属性创建客户序列化程序？ - How do I create a customer serializer for a hash attribute of a model in Rails?

Ruby on Rails：如何将 model 变成“用户最喜欢的模型” - Ruby on Rails: How to model a “user favorite model”

无法在 Rails 中生成用户 Model - Can't generate User Model in Rails

不能使用“ rails g模型用户” - can't use “rails g model user”

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相关问题 如何在Rails中访问模型上的当前主机和端口？ - How can I access current host and port on a model in Rails? 如何在Rails的模型中添加客户验证器 - how to add customer validator in rails's model 如何在 Rails 中为用户使用客户哈希函数？ - How use customer hash function for user in rails? 如何在Rails4的顶级模型和关联模型上编写.includes（）和.where（）？ - How can I write an .includes() plus .where() on both top model and associated model in Rails4? 如何允许管理员用户访问客户用户对象导轨 - How to allow Admin user to access customer user objects rails 跟踪客户对模型的特定偏好 - Rails customer specific preferences on model 如何在Rails中为模型的哈希属性创建客户序列化程序？ - How do I create a customer serializer for a hash attribute of a model in Rails? Ruby on Rails：如何将 model 变成“用户最喜欢的模型” - Ruby on Rails: How to model a “user favorite model” 无法在 Rails 中生成用户 Model - Can't generate User Model in Rails 不能使用“ rails g模型用户” - can't use “rails g model user”

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