enums in grails - persisting enum values to domain classes

Question

I have created enum class UserType under /src/groovy/ as:

public enum UserType {
    USER(1),
    DEVSADMIN(2),
    RESTAURANTADMIN(3)
}

My Domain class "User" is like :

class User {
    String  firstName
    String  lastName
    String  emailAddress
    String  contactNumber
    String  password
    String  image
    Date    dateOfBirth

    UserType userType

Still my domain class having user_type field of string type not enum.Also I would like to know about,how can I persist data for domain class USER in which user_type is enum?

Looking for short example which will have enum groovy class,domain class,controller and service.

Answer 1

I have found a workaround for my problem: I have created a enum class "UserType" at path : src/groovy/

Enum Class UserType looks like :

public enum UserType {
USER('user'),
DEVSADMIN('devsAdmin'),
RESTAURANTADMIN('restaurantAdmin')
String id

UserType(String id){
    this.id = id
 }
}

Domain class "User" in which I am using the above enum class as:

class User {
String  firstName
String  lastName
String  emailAddress
String  contactNumber
String  password
String  image
Date    dateOfBirth

UserType userType
static constraints = {
    userType blank : false
  }
 }

enum handling in controller :

class AuthenticationController {

def authenticationService

def userRegistration(){
    Date date = Date.parse("yyyy-MM-dd","1991-01-08")
    authenticationService.userSignUp(   "Abhinandan", "Satpute", abhinandan.satpute@gmail.com", "8796105046", "123", "abc_image",
            date, UserType.RESTAURANTADMIN)
 }
}

Persisting enum values using Service:

class AuthenticationService {

def userSignUp(String firstName, String lastName, String emailAddress, String contactNumber, String password, String image,
               Date dateOfBirth, Enum userType){

    User user   =   new User("firstName" : firstName, "lastName" : lastName, "emailAddress" : emailAddress, "contactNumber" :contactNumber,
            "password" : password, "image" : image, "dateOfBirth" : dateOfBirth, "userType" : userType)
    user.save(flush: true)
 }
}

Finally , schema of table "User" looks like : In this table "user_type" is the enum field which stored as VARCHAR in domain class. After inserting record to user table :