How to get struct name inside custom validation function-CodePudding

this is my struct:

type User struct {
  Name `validate:"custom_validation"`
}

this is my custom validation:

func customFunc(fl validator.FieldLevel) bool {
    // I want to get struct name inside here
    
    // do some validations...

    return true
}

validate.RegisterValidation("custom_validation", customFunc)

the reason is I need to do some check to the database, I need the table name for that, therefore I need the struct name, because the table name is similar to the struct name. If I hard-coded the table name this customFunc cannot be used to validate in other struct.

How can I do that?

ref: https://pkg.go.dev/github.com/go-playground/validator/v10#hdr-Custom_Validation_Functions

CodePudding user response：

Simple

Get name of the field:

fl.FieldName()

Get value of the field:

fl.Field().String()

Get struct type:

fl.Parent().Type().String()