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跟踪客户对模型的特定偏好

[英]Rails customer specific preferences on model

原文 2013-07-26 23:50:36 8 1 ruby-on-rails/ database-design

I have a many-to-many relationship between two models: Customers and Products. 我在两个模型之间建立了多对多关系：客户和产品。 Many customers share the same database of products. 许多客户共享相同的产品数据库。

My questions is, what if I want to store Customer specific data for each product. 我的问题是，如果我想存储每种产品的客户特定数据该怎么办。 Like how many are in stock? 像有多少库存？ My first instinct is to create some kind of wrapper model (eg Inventory) that refers to a product but would be customer specific. 我的第一个直觉是创建某种包装产品模型（例如，库存），该包装模型涉及一种产品，但将针对客户。 Is there a better way to do this? 有一个更好的方法吗？

1 个解决方案

Glad I could be of help. 很高兴我可以提供帮助。

Original Answer: Have you considered using a has many through association 原始答案：您是否考虑过使用具有许多关联性

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中为特定客户创建操作项 - How To Create Action Items For Specific Customer In Rails

Rails协会：创建特定于客户的订单 - Rails Associations: Creating Orders specific to a Customer

在Ruby On Rails中使用规范化模型设置用户首选项 - Setting User Preferences using Normalized Model in Ruby On Rails

如何为可以是主机，客户或两者的用户建模？滑轨 - How to model a user that can be a host, customer, or both? Rails

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?

Rails模型特定的日期格式 - Rails model specific Date formating

Rails调用模型上的特定操作 - Rails call specific action on model

Rails 4-更新模型中的特定属性 - Rails 4 - Updating Specific Attributes in model

Rails中的特定模型关联案例 - Specific model association case in rails

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相关问题 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中为特定客户创建操作项 - How To Create Action Items For Specific Customer In Rails Rails协会：创建特定于客户的订单 - Rails Associations: Creating Orders specific to a Customer 在Ruby On Rails中使用规范化模型设置用户首选项 - Setting User Preferences using Normalized Model in Ruby On Rails 如何为可以是主机，客户或两者的用户建模？滑轨 - How to model a user that can be a host, customer, or both? Rails 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? Rails模型特定的日期格式 - Rails model specific Date formating Rails调用模型上的特定操作 - Rails call specific action on model Rails 4-更新模型中的特定属性 - Rails 4 - Updating Specific Attributes in model Rails中的特定模型关联案例 - Specific model association case in rails

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