mysql null值, 自定义类型Scan未生效

[hhniao]

GORM Playground Link

go-gorm/playground#794

Description

[a631807682]

If you want an empty array, why not return an empty slice?
https://github.com/go-gorm/playground/pull/794/files#diff-2873f79a86c0d8b3335cd7731b0ecf7dd4301eb19a82ef7a1cba7589b5252261R25

[hhniao]

@a631807682 断点调试发现, 数据库null值, 不会执行Scan方法.
其他值均会进入Scan方法, 现在主要的问题是没有执行. 返回什么已经不重要了.

[hhniao]

@a631807682 大哥, 能给个回复吗? 这个问题是要自己想办法解决, 还是你们将来会修复. 还是这个问题不是gorm的问题

[a631807682]

Support for nested fields need us to ignore null values, you can use the flag to distinguish between null and empty strings in the database ,refer to https://pkg.go.dev/database/sql#NullString