46 lines
1.3 KiB
Dart
46 lines
1.3 KiB
Dart
// https://docs.flutter.dev/cookbook/persistence/sqlite
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// SQLite
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import 'dart:async';
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import 'package:flutter/widgets.dart';
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import 'package:flutter_expense_tracker/models/frequency.dart';
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import 'package:path/path.dart';
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import 'package:sqflite/sqflite.dart';
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// Local
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import '/models/expense.dart';
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void loadDB() async {
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// Avoid errors caused by flutter upgrade.
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WidgetsFlutterBinding.ensureInitialized();
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final String frequencies =
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"'${Frequency.values.map((freq) => freq.title).join("','")}'";
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print(frequencies);
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// Open the database and store the reference.
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final database = openDatabase(
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// Set the path to the database. Note: Using the `join` function from the
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// `path` package is best practice to ensure the path is correctly
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// constructed for each platform.
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join(await getDatabasesPath(), 'expense_tracker.db'),
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onCreate: (db, version) {
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// Run the CREATE TABLE statement on the database.
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return db.execute(
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"""
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CREATE TABLE expense
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( id INTEGER PRIMARY KEY
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, name TEXT
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, cost DOUBLE
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, frequency TEXT CHECK(frequency IN ($frequencies) )
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, description TEXT
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)""",
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);
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},
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// Set the version. This executes the onCreate function and provides a
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// path to perform database upgrades and downgrades.
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version: 1,
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);
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}
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