aves/lib/model/metadata_db.dart
2019-08-11 14:06:50 +09:00

63 lines
1.7 KiB
Dart

import 'package:aves/model/image_metadata.dart';
import 'package:flutter/foundation.dart';
import 'package:path/path.dart';
import 'package:sqflite/sqflite.dart';
final MetadataDb metadataDb = MetadataDb._private();
class MetadataDb {
Future<Database> _database;
Future<String> get path async => join(await getDatabasesPath(), 'metadata.db');
static final table = 'metadata';
MetadataDb._private();
init() async {
debugPrint('$runtimeType init');
_database = openDatabase(
await path,
onCreate: (db, version) {
return db.execute(
'CREATE TABLE $table(contentId INTEGER PRIMARY KEY, dateMillis INTEGER, videoRotation INTEGER, xmpSubjects TEXT, latitude REAL, longitude REAL)',
);
},
version: 1,
);
}
reset() async {
debugPrint('$runtimeType reset');
(await _database).close();
deleteDatabase(await path);
await init();
}
Future<List<CatalogMetadata>> getAll() async {
debugPrint('$runtimeType getAll');
final db = await _database;
final maps = await db.query(table);
return maps.map((map) => CatalogMetadata.fromMap(map)).toList();
}
Future<CatalogMetadata> get(int contentId) async {
debugPrint('$runtimeType get contentId=$contentId');
final db = await _database;
List<Map> maps = await db.query(table, where: 'contentId = ?', whereArgs: [contentId]);
if (maps.length > 0) {
return CatalogMetadata.fromMap(maps.first);
}
return null;
}
insert(CatalogMetadata metadata) async {
// debugPrint('$runtimeType insert metadata=$metadata');
final db = await _database;
await db.insert(
table,
metadata.toMap(),
conflictAlgorithm: ConflictAlgorithm.replace,
);
}
}