Go RESTful Series

entities.go

 package users

import (
	"errors"
	"regexp"

	"github.com/the-evengers/go-restful/common"
)

// ... other stuff ...

// ValidateUser validates a user data and returns validation errors or nil.
func ValidateUser(user *User) error {
	errs := make([]error, 0)

	// ... validations ...

	// Return errors or nil.
	if len(errs) == 0 {
		return nil
	}
	return common.Errors(errs)
}