SQLite外键约束失败（代码787）-Android房间

我在安卓房间的外键有问题

我写了两个实体和道。客户实体具有AddressID参数，它是对外键的引用

@Entity(
    tableName = "customers", foreignKeys = [
        ForeignKey(
            entity = AddressDbModel::class,
            parentColumns = ["id"],
            childColumns = ["address_id"]
        )
    ],
    indices = [
        Index(value = ["address_id"])
    ]
)
data class CustomerDbModel(
    @PrimaryKey(autoGenerate = true)
    @ColumnInfo(name = "id")
    val customerId: Long? = null,

    @ColumnInfo(name = "name")
    val name: String,

    @ColumnInfo(name = "address_id")
    val addressId: Long? = null
)

如何解决此问题？

您可以使用：-

ForeignKey(
        entity = AddressDbModel::class,
        parentColumns = ["id"],
        childColumns = ["address_id"],
        onDelete = ForeignKey.CASCADE //<<<<<<<<<< ADDED
)

ForeignKey(
实体=地址模型：：类，
parentColumns=[“id”]，
childColumns=[“地址\标识”]，
onDelete=ForeignKey.CASCADE//
@Dao
interface AddressDao : BaseDao<AddressDbModel> {

    @Query("DELETE FROM addresses WHERE id=:address")
    fun deleteById(address: Long)
}

FOREIGN KEY constraint failed (code 787 SQLITE_CONSTRAINT_FOREIGNKEY[787])

ForeignKey(
        entity = AddressDbModel::class,
        parentColumns = ["id"],
        childColumns = ["address_id"],
        onDelete = ForeignKey.CASCADE //<<<<<<<<<< ADDED
)