Apply migration when import DB as well

app/src/main/java/com/hippo/ehviewer/EhDB.kt

@@ -27,6 +27,7 @@ import com.hippo.ehviewer.dao.BasicDao
 import com.hippo.ehviewer.dao.DownloadDirname
 import com.hippo.ehviewer.dao.DownloadInfo
 import com.hippo.ehviewer.dao.DownloadLabel
+import com.hippo.ehviewer.dao.EHDB_MIGRATION_4_5
 import com.hippo.ehviewer.dao.EhDatabase
 import com.hippo.ehviewer.dao.Filter
 import com.hippo.ehviewer.dao.HistoryInfo
@@ -399,7 +400,9 @@ object EhDB {
     fun importDB(context: Context, uri: Uri): String? {
         runCatching {
             val oldDB = databaseBuilder(context, EhDatabase::class.java, "tmp.db")
-                .createFromInputStream { context.contentResolver.openInputStream(uri) }.build()
+                .createFromInputStream { context.contentResolver.openInputStream(uri) }
+                .addMigrations(EHDB_MIGRATION_4_5)
+                .build()
 
             // Download label
             val manager = DownloadManager

app/src/main/java/com/hippo/ehviewer/dao/EhDatabase.kt

@@ -8,7 +8,7 @@ import androidx.room.RoomDatabase
 import androidx.room.migration.Migration
 import androidx.sqlite.db.SupportSQLiteDatabase
 
-private val EHDB_MIGRATION_4_5 = object : Migration(4, 5) {
+val EHDB_MIGRATION_4_5 = object : Migration(4, 5) {
     override fun migrate(db: SupportSQLiteDatabase) {
         val needMigrationTables = arrayOf(
             "DOWNLOADS",