Accessing enum field in Entity created using EntityClass.new causes ClassCastException

[carterhudson]

I've got the following:

object Cards : IntIdTable() {
    enum class Issuer {
        ISSUER,
        OTHER
    }

    val holder = reference("holder", Customers)
    val number = varchar("number", 255)
    val issuer = customEnumeration(
        "issuer",
        "ENUM('ISSUER', 'OTHER')",
        { Issuer.values()[it as Int] },
        { it.name }
    )
}

class CardEntity(id: EntityID<Int>) : IntEntity(id) {
    companion object : IntEntityClass<CardEntity>(Cards)

    var number by Cards.number
    var customer by CustomerEntity referencedOn Cards.holder
    var issuer by Cards.issuer

    fun toDomain(): Card {
        return Card(
            id = id.value,
            number = number,
            issuer = issuer.name,
            holder = customer.id.value
        )
    }
}

When I do the following:

CardEntity
    .new {
        number = cardRequest.number
        customer = CustomerEntity[customerId]
        issuer = Cards.Issuer.valueOf(cardRequest.issuer)
    }
    .toDomain()

I get a ClassCastException stating data.card.Cards$Issuer cannot be cast to java.lang.Integer when the toDomain() function tries to read the issuer.name

The entry in the database gets created, and all subsequent fetches and uses of toDomain() work fine. It's seems that it's only when using the Entity returned by the .new { ... } block that this occurs. Any ideas?

Edit:
As a workaround, I can supply

{ value -> 
    (value as? Int)
        ?.let { Issuer.values()[it] } 
        ?: (value as Issuer) 
}

as my fromDb function to make things work, but that's pretty hacky...

[Tapac]

Thank you for a report, will be available on the next release

[hugo-clemente]

I think I'm having a problem related to this issue.

I'm using Exposed's DAO with the following :

class Joueur(id: EntityID<Int>) : IntEntity(id) {

    companion object : IntEntityClass<Joueur>(Joueurs)

    var positionJoueur by Joueurs.positionJoueur
    //Other properties...
}

object Joueurs : IntIdTable() {
    enum class PositionJoueur {
        GARDIEN,
        DEFENSEUR,
        MILIEU,
        ATTAQUANT,
        ENTRAINEUR
    }
    val positionJoueur = customEnumeration(
            "positionJoueur", 
            "ENUM('GARDIEN', 'DEFENSEUR', 'MILIEU', 'ATTAQUANT', 'ENTRAINEUR')",
            { value -> PositionJoueur.valueOf(value as String) }, { it.name })
    //Other properties...
}

When I'm creating such an entity, everything is fine, but when I'm trying to update it , I get the same ClassCastException stating java.lang.String cannot be cast to java.lang.Enum.

I'm using MySQL with Exposed 0.13.6

[Tapac]

Could you share a reproducible example as I was trying to reproduce it without a success.