Question

我想在firestore中创建一个数据库。我对noSQL不太了解。我有多个类型A的字段，对于每个字段，我都应将其映射到类型B的数组，并且每个B都必须映射到键值映射。谁能在Firestore中帮助我创建此类建模？

示例：如果您仍然不清楚，这是我如何存储数据的直观视图

Class 1 ->Student A  -> height of A : x
                     -> weight of A : y
                     -> marks of A : z
        ->Student B  -> height of B : a
                     -> weight of B : b
                     -> marks of B : c

Class 2 ->Student D -> ...

至少有人能推荐一些博客或教程来在Firestore中进行复杂的数据库建模吗？在此先感谢：）

Answer 1

在我看来，这相对简单。

Collection "Class 1" 
       -> Document "UserId" 
          -> Document Field "Name"
          -> Document Field "Weight"
          -> Document Field "Marks"
           ....
       -> Document "UserId" 
          -> Document Field "Name"
          -> Document Field "Weight"
          -> Document Field "Marks"
           ....
//Second class will be a different collection

Collection "Class 2" 
       -> Document "UserId" 
          -> Document Field "Name"
          -> Document Field "Weight"
          -> Document Field "Marks"
           ....
       -> Document "UserId" 
          -> Document Field "Name"
          -> Document Field "Weight"
          -> Document Field "Marks"
           ....

但是，如果您创建的是学校之类的东西，那么这仍然有效，但是您可以在前面进行其他查询以保持数据库的结构化。示例：

Collection "SchoolName"
      -> Document "Classes"
          -> Collection "Class Name"
              -> Document Attendee "UserId"
                    -> Document Fields "Name"
                    -> Document Fields "Weight"
                           ...
              -> Document Attendee "UserId2"
                    -> Document Fields "Name2"
                    -> Document Fields "Weight2"

Firestore中的复杂数据库建模

1 个答案: