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added migration scripts and setuped sqflite_migration

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This commit is contained in:
Abhinav-grd 2021-01-22 13:47:02 +05:30
parent 7f679eec0f
commit c97a1a1f5d
1 changed files with 56 additions and 23 deletions
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79
lib/db/collections_db.dart
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@ -5,11 +5,10 @@ import 'package:path/path.dart';
import 'package:path_provider/path_provider.dart';
import 'package:photos/models/collection.dart';
import 'package:sqflite/sqflite.dart';
import 'package:sqflite_migration/sqflite_migration.dart';
class CollectionsDB {
static final _databaseName = "ente.collections.db";
static final _databaseVersion = 1;
static final collectionsTable = 'collections';
static final columnID = 'collection_id';
@ -17,12 +16,20 @@ class CollectionsDB {
static final columnEncryptedKey = 'encrypted_key';
static final columnKeyDecryptionNonce = 'key_decryption_nonce';
static final columnName = 'name';
static final columnEncryptedName = 'encrypted_name';
static final columnNameDecryptionNonce = 'name_decryption_nonce';
static final columnType = 'type';
static final columnEncryptedPath = 'encrypted_path';
static final columnPathDecryptionNonce = 'path_decryption_nonce';
static final columnSharees = 'sharees';
static final columnUpdationTime = 'updation_time';
static final intitialScript = [onCreate];
static final migrationScripts = [alterNameToAllowNULL, addEncryptedName];
final dbConfig = MigrationConfig(
initializationScript: intitialScript, migrationScripts: migrationScripts);
CollectionsDB._privateConstructor();
static final CollectionsDB instance = CollectionsDB._privateConstructor();
@ -36,29 +43,53 @@ class CollectionsDB {
_initDatabase() async {
Directory documentsDirectory = await getApplicationDocumentsDirectory();
String path = join(documentsDirectory.path, _databaseName);
return await openDatabase(
path,
version: _databaseVersion,
onCreate: _onCreate,
);
return await openDatabaseWithMigration(path, dbConfig);
}
Future _onCreate(Database db, int version) async {
await db.execute('''
CREATE TABLE $collectionsTable (
$columnID INTEGER PRIMARY KEY NOT NULL,
$columnOwner TEXT NOT NULL,
$columnEncryptedKey TEXT NOT NULL,
$columnKeyDecryptionNonce TEXT,
$columnName TEXT NOT NULL,
$columnType TEXT NOT NULL,
$columnEncryptedPath TEXT,
$columnPathDecryptionNonce TEXT,
$columnSharees TEXT,
$columnUpdationTime TEXT NOT NULL
)
''');
}
static final onCreate = '''
CREATE TABLE $collectionsTable (
$columnID INTEGER PRIMARY KEY NOT NULL,
$columnOwner TEXT NOT NULL,
$columnEncryptedKey TEXT NOT NULL,
$columnKeyDecryptionNonce TEXT,
$columnName TEXT,
$columnType TEXT NOT NULL,
$columnEncryptedPath TEXT,
$columnPathDecryptionNonce TEXT,
$columnSharees TEXT,
$columnUpdationTime TEXT NOT NULL
);
''';
static final alterNameToAllowNULL = '''
CREATE TABLE $collectionsTable-copy (
$columnID INTEGER PRIMARY KEY NOT NULL,
$columnOwner TEXT NOT NULL,
$columnEncryptedKey TEXT NOT NULL,
$columnKeyDecryptionNonce TEXT,
$columnName TEXT,
$columnType TEXT NOT NULL,
$columnEncryptedPath TEXT,
$columnPathDecryptionNonce TEXT,
$columnSharees TEXT,
$columnUpdationTime TEXT NOT NULL
);
INSERT INTO $collectionsTable-copy
SELECT *
FROM $collectionsTable;
DROP TABLE $collectionsTable;
ALTER TABLE $collectionsTable-copy
RENAME TO $collectionsTable;
''';
static String addEncryptedName = '''
ALTER TABLE $collectionsTable
ADD COLUMN $columnEncryptedName TEXT
ADD COLUMN $columnNameDecryptionNonce TEXT
''';
Future<List<dynamic>> insert(List<Collection> collections) async {
final db = await instance.database;
@ -126,6 +157,8 @@ class CollectionsDB {
row[columnEncryptedKey],
row[columnKeyDecryptionNonce],
row[columnName],
row[columnEncryptedName],
row[columnNameDecryptionNonce],
Collection.typeFromString(row[columnType]),
CollectionAttributes(
encryptedPath: row[columnEncryptedPath],