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Active Record 数据库连接：底层适配，约定、配置

  • Model Schema

  • Naming Conventions

  • Schema Conventions

  • Timestamps

  • Core

  • Attribute

和属性的类型转换有关，在 Attribute Set 里会用到。尽管 Attribute Set 也属于底层。

  • Attribute Set

  • Attribute Decorators

相对而言较底层，使用 Rails 的话，一般不会直接用到的它们：

  • Connection Handling

  • Serialization

  • Migration DatabaseTasks

  • Statement Cache

  • Explain

  • Explain Registry

  • Explain Subscriber

  • Query Cache

  • Result

  • Runtime Registry

  • Sanitization

  • Legacy Yaml Adapter