Question

我想在当前的pb中添加值，日期和详细信息。我在数据库中收到pbInfo的错误“冲突声明”。我该如何解决该错误？

@Entity(tableName = "pb_table")
data class Pb(@PrimaryKey
              val pb: String)

@Entity
data class PbInfo(@PrimaryKey
                  var value: Double,
                  var date: Int,
                  var details: String)

@Dao
interface PbInfoDao {


    @Insert
    fun update(vararg pbInfo: PbInfo): LongArray

 INSTANCE?.let { database ->
                    scope.launch {
                        populateDatabase(database.pbDao(), database.pbInfo())
                    }
                }
            }
            suspend fun populateDatabase(pbDao: PbDao, pbInfoDao: PbInfoDao) {
                pbDao.deleteAll()

                var pb = Pb("Squat")
                pbDao.insert(pb)
                var pbInfo = PbInfo(122.5, 28, "I was feeling on top form today!")

Answer 1

首先，您在一个类中有两个实体（可能是冲突）

因此，为单独的if (Intent.ACTION_SEND.equals(action) && type != null) { // Make sure the file is of type audio if (type.startsWith("audio/")) { handle(); // Handle audio being sent } } else if (Intent.ACTION_VIEW.equals(action) && type != null) { // Make sure the file is of type audio if (type.startsWith("audio/")) { handle(); // Handle audio being sent } } private void handle() { Uri ur = intent.getParcelableExtra(Intent.EXTRA_TEXT); String url = ur.getPath(); if (url == null) { return; } Uri uri = MediaStore.Audio.Media.EXTERNAL_CONTENT_URI; String selection = MediaStore.Audio.Media.IS_MUSIC + "!=0"; // Select the following fields from an audio track in the storage String[] projection = {MediaStore.Audio.AudioColumns._ID, MediaStore.Audio.AudioColumns.DATA, MediaStore.Audio.ArtistColumns.ARTIST, MediaStore.Audio.AudioColumns.TITLE, MediaStore.Audio.AudioColumns.ALBUM, MediaStore.Audio.AlbumColumns.ALBUM_ID, MediaStore.Audio.AudioColumns.DURATION, MediaStore.Audio.Media.TRACK, MediaStore.Audio.Media.YEAR}; Cursor c = context.getContentResolver().query(uri, projection, selection, null, null); if (c != null) { while (c.moveToNext()) { Long id = c.getLong(0); String path = c.getString(1); String artist = c.getString(2); String title = c.getString(3); String album = c.getString(4); Long albumId = c.getLong(5); Long duration = c.getLong(6); int trackNumber = getTrackNumber(c.getString(7), 1); int cdNumber = getTrackNumber(c.getString(7), 0); int year = 0; if (c.getString(8) != null) { year = Integer.parseInt(c.getString(8)); } if (path.equals(url)) { // Add the data to the HashMap then return it. audioTrack.put("id", id); audioTrack.put("artist", artist); audioTrack.put("title", title); audioTrack.put("album", album); audioTrack.put("albumId", albumId); audioTrack.put("uri", path); audioTrack.put("duration", formatDuration(duration)); audioTrack.put("artwork", getAlbumArt(context, albumId)); audioTrack.put("genre", getGenre(context, id)); audioTrack.put("trackNumber", trackNumber); audioTrack.put("cdNumber", cdNumber); audioTrack.put("year", year); System.out.println("Audio track sent: " + audioTrack.get("title")); } } // Always make sure to close the cursor after finishing its use c.close(); } }添加单独的类。

然后，在RoomDatabase抽象类中，添加两个这样的实体类（并创建单独的Entity接口类）：

Dao

这应该解决实体类的冲突。我只有一个带有两个实体的数据库，并且没有任何问题。（请注意我，因为我不知道Kotlin语法）

Answer 2

使用此

@Insert(onConflict = OnConflictStrategy.REPLACE)

代替

@Insert

会议室：相互矛盾的声明

2 个答案: