[trash] add trash db
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105
lib/db/trash_db.dart
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105
lib/db/trash_db.dart
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import 'dart:io';
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import 'package:logging/logging.dart';
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import 'package:path/path.dart';
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import 'package:path_provider/path_provider.dart';
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import 'package:photos/models/magic_metadata.dart';
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import 'package:sqflite/sqflite.dart';
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class TrashDB {
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static final _databaseName = "ente.trash.db";
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static final _databaseVersion = 1;
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static final Logger _logger = Logger("TrashDB");
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static final tableName = 'trash';
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static final columnUploadedFileID = 'uploaded_file_id';
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static final columnCollectionID = 'collection_id';
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static final columnOwnerID = 'owner_id';
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static final columnTrashUpdatedAt = 't_updated_at';
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static final columnTrashDeleteBy = 't_delete_by';
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static final columnEncryptedKey = 'encrypted_key';
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static final columnKeyDecryptionNonce = 'key_decryption_nonce';
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static final columnFileDecryptionHeader = 'file_decryption_header';
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static final columnThumbnailDecryptionHeader = 'thumbnail_decryption_header';
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static final columnLocalID = 'local_id';
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static final columnTitle = 'title';
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static final columnDeviceFolder = 'device_folder';
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static final columnLatitude = 'latitude';
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static final columnLongitude = 'longitude';
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static final columnFileType = 'file_type';
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static final columnFileSubType = 'file_sub_type';
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static final columnDuration = 'duration';
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static final columnExif = 'exif';
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static final columnHash = 'hash';
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static final columnMetadataVersion = 'metadata_version';
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static final columnModificationTime = 'modification_time';
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static final columnCreationTime = 'creation_time';
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static final columnMMdEncodedJson = 'mmd_encoded_json';
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static final columnMMdVersion = 'mmd_ver';
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static final columnMMdVisibility = 'mmd_visibility';
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Future _onCreate(Database db, int version) async {
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await db.execute('''
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CREATE TABLE $tableName (
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$columnUploadedFileID INTEGER PRIMARY KEY NOT NULL,
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$columnCollectionID INTEGER NOT NULL,
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$columnOwnerID INTEGER,
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$columnTrashUpdatedAt INTEGER NOT NULL,
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$columnTrashDeleteBy INTEGER NOT NULL,
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$columnEncryptedKey TEXT,
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$columnKeyDecryptionNonce TEXT,
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$columnFileDecryptionHeader TEXT,
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$columnThumbnailDecryptionHeader TEXT,
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$columnLocalID TEXT,
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$columnTitle TEXT NOT NULL,
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$columnDeviceFolder TEXT,
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$columnLatitude REAL,
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$columnLongitude REAL,
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$columnFileType INTEGER,
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$columnCreationTime INTEGER NOT NULL,
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$columnModificationTime INTEGER NOT NULL,
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$columnFileSubType INTEGER,
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$columnDuration INTEGER,
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$columnHash TEXT,
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$columnMetadataVersion INTEGER,
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$columnMMdEncodedJson TEXT DEFAULT '{}',
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$columnMMdVersion INTEGER DEFAULT 0,
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$columnMMdVisibility INTEGER DEFAULT $kVisibilityVisible
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);
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CREATE INDEX IF NOT EXISTS creation_time_index ON $tableName($columnCreationTime);
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CREATE INDEX IF NOT EXISTS creation_time_index ON $tableName($columnTrashDeleteBy);
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CREATE INDEX IF NOT EXISTS creation_time_index ON $tableName($columnTrashUpdatedAt);
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''');
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}
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TrashDB._privateConstructor();
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static final TrashDB instance = TrashDB._privateConstructor();
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// only have a single app-wide reference to the database
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static Future<Database> _dbFuture;
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Future<Database> get database async {
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// lazily instantiate the db the first time it is accessed
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_dbFuture ??= _initDatabase();
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return _dbFuture;
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}
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// this opens the database (and creates it if it doesn't exist)
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Future<Database> _initDatabase() async {
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Directory documentsDirectory = await getApplicationDocumentsDirectory();
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String path = join(documentsDirectory.path, _databaseName);
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_logger.info("DB path " + path);
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return await openDatabase(
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path,
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version: _databaseVersion,
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onCreate: _onCreate,
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);
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}
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Future<void> clearTable() async {
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final db = await instance.database;
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await db.delete(tableName);
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}
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}
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