57 lines
1.7 KiB
Dart
57 lines
1.7 KiB
Dart
import 'dart:async';
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import 'dart:io';
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import 'package:angel_orm/angel_orm.dart';
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import 'package:postgres/postgres.dart';
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Future<PostgresExecutor> connectToPostgres(Iterable<String> schemas) async {
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var conn = new PostgreSQLConnection('127.0.0.1', 5432, 'angel_orm_test',
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username: Platform.environment['POSTGRES_USERNAME'] ?? 'postgres',
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password: Platform.environment['POSTGRES_PASSWORD'] ?? 'password');
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await conn.open();
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for (var s in schemas)
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await conn.execute(await new File('test/migrations/$s.sql').readAsString());
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return new PostgresExecutor(conn);
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}
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class PostgresExecutor extends QueryExecutor {
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PostgreSQLExecutionContext connection;
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PostgresExecutor(this.connection);
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Future close() => (connection as PostgreSQLConnection).close();
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@override
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Future<List<List>> query(
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String query, Map<String, dynamic> substitutionValues,
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[List<String> returningFields]) {
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if (returningFields != null) {
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var fields = returningFields.join(', ');
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var returning = 'RETURNING $fields';
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query = '$query $returning';
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}
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if (!Platform.environment.containsKey('STFU')) {
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print('Running: $query');
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if (substitutionValues.isNotEmpty) print('Values: $substitutionValues');
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}
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return connection.query(query, substitutionValues: substitutionValues);
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}
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@override
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Future<T> transaction<T>(FutureOr<T> Function() f) async {
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if (connection is! PostgreSQLConnection) return await f();
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var old = connection;
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T result;
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try {
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await (connection as PostgreSQLConnection).transaction((ctx) async {
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connection = ctx;
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result = await f();
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});
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} finally {
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connection = old;
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return result;
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}
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}
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}
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