110 lines
3.9 KiB
Dart
110 lines
3.9 KiB
Dart
// ignore_for_file: use_build_context_synchronously
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import 'package:flutter/material.dart';
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import 'package:firebase_database/firebase_database.dart';
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import 'package:firebase_storage/firebase_storage.dart';
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class RecipeDetailPage extends StatelessWidget {
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final String recipeId;
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const RecipeDetailPage({Key? key, required this.recipeId, required Map recipe}) : super(key: key);
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Future<void> _showDeleteDialog(BuildContext context) async {
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bool confirmDelete = await showDialog(
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context: context,
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builder: (BuildContext context) {
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return AlertDialog(
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title: const Text('Rezept löschen'),
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content: const Text('Sind Sie sicher, dass Sie dieses Rezept löschen möchten?'),
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actions: <Widget>[
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TextButton(
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onPressed: () => Navigator.of(context).pop(false),
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child: const Text('Abbrechen'),
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),
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TextButton(
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onPressed: () => Navigator.of(context).pop(true),
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child: const Text('Löschen'),
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),
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],
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);
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},
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) ?? false; // Dialog-Abbruch auch als "Nicht löschen" werten
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if (confirmDelete) {
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await _deleteRecipe(context);
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}
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}
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Future<void> _deleteRecipe(BuildContext context) async {
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DatabaseReference recipeRef = FirebaseDatabase.instance.ref('rezepte/$recipeId');
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DataSnapshot snapshot = await recipeRef.get();
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if (snapshot.exists) {
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Map<dynamic, dynamic> recipe = snapshot.value as Map<dynamic, dynamic>;
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// Lösche die Bilder aus dem Storage, wenn URLs vorhanden sind
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for (final key in ['bild1', 'bild2', 'bild3']) {
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final String? imageUrl = recipe[key];
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if (imageUrl != null && imageUrl.isNotEmpty) {
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try {
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await FirebaseStorage.instance.refFromURL(imageUrl).delete();
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} catch (e) {
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debugPrint("Fehler beim Löschen von $imageUrl: $e");
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}
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}
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}
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// Lösche den Rezepteintrag aus der Datenbank
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await recipeRef.remove();
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Navigator.pop(context);
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} else {
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ScaffoldMessenger.of(context).showSnackBar(
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const SnackBar(content: Text('Rezept konnte nicht gefunden werden.')),
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);
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}
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}
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@override
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Widget build(BuildContext context) {
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return Scaffold(
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appBar: AppBar(
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title: const Text('Rezept Details'),
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),
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body: FutureBuilder<DataSnapshot>(
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future: FirebaseDatabase.instance.ref('rezepte/$recipeId').get(),
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builder: (BuildContext context, AsyncSnapshot<DataSnapshot> snapshot) {
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if (snapshot.connectionState == ConnectionState.waiting) {
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return const Center(child: CircularProgressIndicator());
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}
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if (!snapshot.hasData || snapshot.data?.value == null) {
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return const Center(child: Text('Rezept nicht gefunden'));
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}
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var recipeData = snapshot.data!.value as Map<dynamic, dynamic>;
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return SingleChildScrollView(
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child: Column(
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children: [
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if (recipeData['bild1'] != null)
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Image.network(recipeData['bild1']),
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Text(recipeData['titel'] ?? 'Kein Titel', style: Theme.of(context).textTheme.titleLarge),
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Text(recipeData['beschreibung1'] ?? 'Keine Beschreibung'),
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Text(recipeData['beschreibung2'] ?? 'Keine Beschreibung'),
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Text(recipeData['beschreibung3'] ?? 'Keine Beschreibung'),
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if (recipeData['bild2'] != null && recipeData['bild2'].isNotEmpty)
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Image.network(recipeData['bild2']),
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if (recipeData['bild3'] != null && recipeData['bild3'].isNotEmpty)
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Image.network(recipeData['bild3']),
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],
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),
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);
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},
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),
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floatingActionButton: FloatingActionButton(
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onPressed: () => _showDeleteDialog(context),
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tooltip: 'Löschen',
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child: const Icon(Icons.delete),
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),
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);
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}
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} |