User management models

modelsUser.kt

// You can use the same models.kt class

// ------------------------------------------------------
// User management
// ------------------------------------------------------

/**
 * It's a way to keep a canonical Datetime serializer
 */
class DateTimeSerializer @JvmOverloads constructor(t: Class<DateTime>? = null) : StdSerializer<DateTime>(t) {

    @Throws(IOException::class, JsonProcessingException::class)
    override fun serialize(value: DateTime, gen: JsonGenerator, arg2: SerializerProvider) {
        gen.writeString(formatter.print(value))
    }

    private val formatter = ISODateTimeFormat.basicDateTime()
}

/**
 * A base model with some minimum attributes that any entity in the system should have
 * @property id Unique ID of that element
 * @property createdAt When it was created
 * @property updatedAt Last time that the entity changed
 */
abstract class BaseModel(override var id: Int?): Model {
    constructor(): this(0)

    @JsonSerialize(using = DateTimeSerializer::class)
    var createdAt: DateTime? = DateTime()

    @JsonSerialize(using = DateTimeSerializer::class)
    var updatedAt: DateTime? = DateTime()
}

/**
 * Basic fields that a User needs
 * @property email User email
 */
abstract class User: BaseModel() {
    open var email: String = ""
}

/**
 * Anonymous User -> User who is not logged into the system
 */
class AnonymousUser: User()