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[Flutter] 此类场景在 Flutter 中的最佳实践是什么?

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场景描述

技术栈 Flutter+Drift+Riverpod ,有表todoRecorduser,现在需要查询出待办记录最多的五位用户,使用图表展示,并能够支持自动刷新

  1. 查询todoRecord表,定位到userId出现次数最多的五条userId
  2. 查询user表拿到用户信息如姓名;
  3. 绘制图表。

方案

因为需要实现自动刷新,那么使用到了 Drift 的 watch()函数返回 Stream 。

  • 方案 1 ,分两次查询: StreamBuilder<List<TodoRecordData>>嵌套StreamBuilder<List<UserData>>
  • 方案 2 ,一次查询:自定义 SQL 处理连表查询,直接单StreamBuilder<List<(UserData, int)>>构建。

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