I have my struct like this:
type User struct {
Id uint64
Email string
}
And I know, that I can declare it like this:
user := User{
Id: 1,
Email: "test@example.com",
}
And I can update it like this:
user.Id = 2
user.Email = "test1@example.com"
Is it possible to use similar construction like for creating but for updating struct?
分享 No, there really isn't an equivalent multi-property setter.
EDIT:
Possibly with reflection you could do something like:
updates := user := User{
Email: "newemail@example.com",
}
//via reflection (pseudo code)
for each field in target object {
if updates.field is not zero value{
set target.field = updates.field
}
}
The reflection part could be factored into a function updateFields(dst, src interface{}), but I would generally say the complexity is not worth the savings. Just have a few lines of setting fields one by one.
分享
