Я пытался создать представление базы данных в android, но получаю эту ошибку:
ошибка: существует проблема с запросом: [SQLITE_ERROR] SQL ошибка или отсутствует база данных ( нет такой таблицы: ChatsView) publi c abstract androidx.lifecycle.LiveData> getMessageViewLIst ();
Пожалуйста, помогите мне с этим, как я могу получить данные из DatabaseView в персистентности комнаты android
Класс DatabaseView
@DatabaseView("SELECT chats.username as username," +
"(SELECT chat.message FROM ChatEntityModel as chat WHERE chat.username=chats.username ORDER BY id DESC LIMIT 1) as lastMsg" +
"(SELECT chat.timeStamp FROM ChatEntityModel as chat WHERE chat.username=chats.username ORDER BY id DESC LIMIT 1) as lastMsgTime " +
"(SELECT count(1) FROM ChatEntityModel as chat WHERE chat.username=chats.username and status=4 ) as totalNewMsgCount From ChatEntityModel as chats",viewName = "ChatsView")
data class ChatsView (
val username:String,
val lastMsg:String,
val lastMsgTime:String,
val totalNewMsgCount:String
)
Класс сущности
@Entity(tableName = "ChatEntityModel")
data class ChatEntityModel (
@ColumnInfo(name = "message") var KEY_MESSAGE: String,
@ColumnInfo(name = "username") var KEY_USERNAME : String,
@ColumnInfo(name = "msgsend") var KEY_MSG_SEND : Boolean,
@ColumnInfo(name = "timeStamp") var KEY_TIMESTAMP :String,
@ColumnInfo(name = "status") var KEY_STATUS :Int,
@ColumnInfo(name = "msgid") var KEY_MSG_ID :String,
@ColumnInfo(name = "timestamp_delivered") var KEY_TIME_DELIVERED :String,
@ColumnInfo(name = "timestamp_read") var KEY_TIME_READ :String,
@ColumnInfo(name = "progress") var KEY_PROGRESS :String,
@ColumnInfo(name = "type") var KEY_TYPE : String
){
@PrimaryKey(autoGenerate = true)@ColumnInfo(name = "id")var KEY_ID:Int=0
}
Класс DaoAccess
@Database(entities = [(ChatEntityModel::class)], views = [(ChatsView::class)], version = 1,
exportSchema = false)
abstract class DaoDatabaseAccess:RoomDatabase() {
abstract fun ChattingDao():ChattingDao
// abstract fun ChattViewDao():ChattViewDao
}
Дао
@Dao
interface ChattingDao {
@Insert(onConflict = OnConflictStrategy.ABORT)
fun insertChatList(chats: List<ChatEntityModel>)
@Insert(onConflict = OnConflictStrategy.ABORT)
fun inserChat(chats: ChatEntityModel)
@Update
fun updateMovie(chats: ChatEntityModel)
@Query("SELECT * FROM ChatEntityModel WHERE id = :id_")
fun getMovie(id_: Int): ChatEntityModel
@Query("SELECT * FROM ChatEntityModel WHERE username=:Jid ORDER BY id ASC")
fun getChatList(Jid:String?): LiveData<List<ChatEntityModel>>
@Query("Update ChatEntityModel SET status=2 , timestamp_delivered=:timeDelivered WHERE msgid=:msg_id
and status <> 3 and username=:Jid ")
fun setChatDelivered(timeDelivered: String?,msg_id:String?,Jid: String?)
@Query("SELECT * FROM ChatEntityModel WHERE status=0 ORDER BY id LIMIT 1" )
fun getUnsentMessage(): List<ChatEntityModel>
@Query("SELECT msgid FROM ChatEntityModel WHERE status=4 and username=:username ORDER BY id" )
fun getUnReadMessage(username:String): List<String>
@Query("UPDATE ChatEntityModel SET status=1 WHERE msgid= :msgId and status=0")
fun setMessageSent(msgId: String?)
@Query("SELECT * FROM ChatEntityModel WHERE msgid =:msgId")
fun checkIfExists(msgId:String?): List<ChatEntityModel>
@Query("Update ChatEntityModel SET status=3 , timestamp_read=:currentTimeMillis WHERE msgid in (:receiptId) and username=:Jid ")
fun setChatRead(currentTimeMillis: String?, receiptId:List<String>,Jid: String?)
@Query("SELECT * FROM ChatEntityModel WHERE status=4 and username=:Jid ")
fun getUnReadChats(Jid: String?):LiveData<List<ChatEntityModel>>
@Query("UPDATE ChatEntityModel set status=5 WHERE status=4 and msgid in (:chat) ")
fun setChatReceivedRead(chat:List<String>)
@Query("SELECT * FROM ChatsView")
fun getMessageViewLIst(): LiveData<List<ChatsView>>
}