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[trash] add trash db

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Neeraj Gupta 2021-10-03 18:28:44 +05:30
parent 7c722a91f9
commit 33126b65a3
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import 'dart:io';
import 'package:logging/logging.dart';
import 'package:path/path.dart';
import 'package:path_provider/path_provider.dart';
import 'package:photos/models/magic_metadata.dart';
import 'package:sqflite/sqflite.dart';
class TrashDB {
static final _databaseName = "ente.trash.db";
static final _databaseVersion = 1;
static final Logger _logger = Logger("TrashDB");
static final tableName = 'trash';
static final columnUploadedFileID = 'uploaded_file_id';
static final columnCollectionID = 'collection_id';
static final columnOwnerID = 'owner_id';
static final columnTrashUpdatedAt = 't_updated_at';
static final columnTrashDeleteBy = 't_delete_by';
static final columnEncryptedKey = 'encrypted_key';
static final columnKeyDecryptionNonce = 'key_decryption_nonce';
static final columnFileDecryptionHeader = 'file_decryption_header';
static final columnThumbnailDecryptionHeader = 'thumbnail_decryption_header';
static final columnLocalID = 'local_id';
static final columnTitle = 'title';
static final columnDeviceFolder = 'device_folder';
static final columnLatitude = 'latitude';
static final columnLongitude = 'longitude';
static final columnFileType = 'file_type';
static final columnFileSubType = 'file_sub_type';
static final columnDuration = 'duration';
static final columnExif = 'exif';
static final columnHash = 'hash';
static final columnMetadataVersion = 'metadata_version';
static final columnModificationTime = 'modification_time';
static final columnCreationTime = 'creation_time';
static final columnMMdEncodedJson = 'mmd_encoded_json';
static final columnMMdVersion = 'mmd_ver';
static final columnMMdVisibility = 'mmd_visibility';
Future _onCreate(Database db, int version) async {
await db.execute('''
CREATE TABLE $tableName (
$columnUploadedFileID INTEGER PRIMARY KEY NOT NULL,
$columnCollectionID INTEGER NOT NULL,
$columnOwnerID INTEGER,
$columnTrashUpdatedAt INTEGER NOT NULL,
$columnTrashDeleteBy INTEGER NOT NULL,
$columnEncryptedKey TEXT,
$columnKeyDecryptionNonce TEXT,
$columnFileDecryptionHeader TEXT,
$columnThumbnailDecryptionHeader TEXT,
$columnLocalID TEXT,
$columnTitle TEXT NOT NULL,
$columnDeviceFolder TEXT,
$columnLatitude REAL,
$columnLongitude REAL,
$columnFileType INTEGER,
$columnCreationTime INTEGER NOT NULL,
$columnModificationTime INTEGER NOT NULL,
$columnFileSubType INTEGER,
$columnDuration INTEGER,
$columnHash TEXT,
$columnMetadataVersion INTEGER,
$columnMMdEncodedJson TEXT DEFAULT '{}',
$columnMMdVersion INTEGER DEFAULT 0,
$columnMMdVisibility INTEGER DEFAULT $kVisibilityVisible
);
CREATE INDEX IF NOT EXISTS creation_time_index ON $tableName($columnCreationTime);
CREATE INDEX IF NOT EXISTS creation_time_index ON $tableName($columnTrashDeleteBy);
CREATE INDEX IF NOT EXISTS creation_time_index ON $tableName($columnTrashUpdatedAt);
''');
}
TrashDB._privateConstructor();
static final TrashDB instance = TrashDB._privateConstructor();
// only have a single app-wide reference to the database
static Future<Database> _dbFuture;
Future<Database> get database async {
// lazily instantiate the db the first time it is accessed
_dbFuture ??= _initDatabase();
return _dbFuture;
}
// this opens the database (and creates it if it doesn't exist)
Future<Database> _initDatabase() async {
Directory documentsDirectory = await getApplicationDocumentsDirectory();
String path = join(documentsDirectory.path, _databaseName);
_logger.info("DB path " + path);
return await openDatabase(
path,
version: _databaseVersion,
onCreate: _onCreate,
);
}
Future<void> clearTable() async {
final db = await instance.database;
await db.delete(tableName);
}
}