zerofield

gorm plugin for allow update zero value field.

Desc

When update with struct, GORM will only update non-zero fields, you might want to use map to update attributes or use Select to specify fields to update Updates-multiple-columns

This works in most cases, but there are times when we just want to allow individual 0 values to be updated, and neither map[string]interface nor Select is very friendly to us.

Usage

1. NewPlugin register plugin to gorm.DB

       db.Use(zerofield.NewPlugin())

2. UpdateScopes update event it's zero field

       // ...
       user.Name = ""
       user.Age = 0
       user.Active = false
       user.Birthday = nil
   
       // will always update Name,Age even if it's zero field
       // Active,Birthday will not be saved
       db.Scopes(zerofield.UpdateScopes("Name","Age")).Updates(&user)
       // if cloumns is empty, all field will be save like db.Select("*"")
       db.Scopes(zerofield.UpdateScopes()).Updates(&user)