59 lines
1.4 KiB
Dart
59 lines
1.4 KiB
Dart
import 'package:drift/drift.dart';
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import 'package:drift_flutter/drift_flutter.dart';
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export 'package:drift/drift.dart';
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part 'chat_database.g.dart';
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late final ChatDatabase chatDb;
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class Chats extends Table {
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TextColumn get id => text().unique()();
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TextColumn get json => text()();
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@override
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Set<Column<Object>>? get primaryKey => {id};
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}
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class Assets extends Table {
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TextColumn get id => text().unique()();
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TextColumn get chatId =>
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text().references(Chats, #id, onDelete: KeyAction.cascade)();
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BlobColumn get data => blob()();
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@override
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Set<Column<Object>>? get primaryKey => {id};
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}
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@DriftDatabase(tables: [Chats, Assets])
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class ChatDatabase extends _$ChatDatabase {
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ChatDatabase([QueryExecutor? executor])
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: super(executor ?? _openConnection());
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@override
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int get schemaVersion => 1;
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static QueryExecutor _openConnection() {
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return driftDatabase(
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name: "chatDatabase",
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native: const DriftNativeOptions(),
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web: DriftWebOptions(
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sqlite3Wasm: Uri.parse("sqlite3.wasm"),
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driftWorker: Uri.parse("drift_worker.js"),
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),
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);
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}
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@override
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MigrationStrategy get migration {
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return MigrationStrategy(
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beforeOpen: (details) async {
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await customStatement("PRAGMA foreign_keys = ON");
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},
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onUpgrade: (Migrator m, int from, int to) async {
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// if (from < 2) {}
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},
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);
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}
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}
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