109 lines
3.3 KiB
Dart
109 lines
3.3 KiB
Dart
import 'dart:io';
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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/collection.dart';
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import 'package:sqflite/sqflite.dart';
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class CollectionsDB {
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static final _databaseName = "ente.collections.db";
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static final _databaseVersion = 1;
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static final table = 'collections';
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static final columnID = 'collection_id';
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static final columnOwnerID = 'owner_id';
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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 columnName = 'name';
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static final columnType = 'type';
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static final columnEncryptedPath = 'path';
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static final columnCreationTime = 'creation_time';
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CollectionsDB._privateConstructor();
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static final CollectionsDB instance = CollectionsDB._privateConstructor();
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static Database _database;
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Future<Database> get database async {
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if (_database != null) return _database;
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_database = await _initDatabase();
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return _database;
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}
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_initDatabase() async {
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Directory documentsDirectory = await getApplicationDocumentsDirectory();
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String path = join(documentsDirectory.path, _databaseName);
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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 _onCreate(Database db, int version) async {
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await db.execute('''
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CREATE TABLE $table (
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$columnID INTEGER PRIMARY KEY NOT NULL,
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$columnOwnerID TEXT NOT NULL,
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$columnEncryptedKey TEXT NOT NULL,
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$columnKeyDecryptionNonce TEXT NOT NULL,
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$columnName TEXT NOT NULL,
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$columnType TEXT NOT NULL,
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$columnEncryptedPath TEXT,
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$columnCreationTime TEXT NOT NULL,
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)
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''');
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}
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Future<List<dynamic>> insert(List<Collection> collections) async {
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final db = await instance.database;
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var batch = db.batch();
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for (final collection in collections) {
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batch.insert(table, _getRowForCollection(collection),
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conflictAlgorithm: ConflictAlgorithm.replace);
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}
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return await batch.commit();
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}
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Future<int> getLastCollectionCreationTime() async {
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final db = await instance.database;
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final rows = await db.query(
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table,
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orderBy: '$columnCreationTime DESC',
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limit: 1,
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);
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if (rows.isNotEmpty) {
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return int.parse(rows[0][columnCreationTime]);
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} else {
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return null;
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}
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}
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Map<String, dynamic> _getRowForCollection(Collection collection) {
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var row = new Map<String, dynamic>();
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row[columnID] = collection.id;
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row[columnOwnerID] = collection.ownerID;
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row[columnEncryptedKey] = collection.encryptedKey;
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row[columnKeyDecryptionNonce] = collection.keyDecryptionNonce;
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row[columnName] = collection.name;
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row[columnType] = collection.type;
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row[columnEncryptedPath] = collection.encryptedPath;
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row[columnCreationTime] = collection.creationTime;
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return row;
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}
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Collection _convertToCollection(Map<String, dynamic> row) {
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return Collection(
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row[columnID],
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row[columnOwnerID],
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row[columnEncryptedKey],
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row[columnKeyDecryptionNonce],
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row[columnName],
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row[columnType],
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row[columnEncryptedPath],
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int.parse(row[columnCreationTime]),
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null,
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);
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}
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}
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