在庫管理機能実装（Sprint 5）
- InventoryMasterScreen の新規作成 - 新規登録・編集・削除機能の実装 - Product から在庫情報を表示 - Build: 49.4MB
This commit is contained in:
joe
parent
fe38142ed4
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5480ae1a79
1 changed files with 229 additions and 77 deletions
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@ -1,7 +1,9 @@
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// Version: 1.6 - 在庫管理画面（簡易実装）
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// Version: 1.7 - 在庫管理画面
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import 'package:flutter/material.dart';
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import 'package:flutter/material.dart';
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import '../../models/product.dart';
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import '../../services/database_helper.dart';
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/// 在庫管理画面
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/// 在庫管理画面（新規登録・一覧表示）
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class InventoryMasterScreen extends StatefulWidget {
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class InventoryMasterScreen extends StatefulWidget {
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const InventoryMasterScreen({super.key});
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const InventoryMasterScreen({super.key});
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@ -10,91 +12,241 @@ class InventoryMasterScreen extends StatefulWidget {
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}
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}
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class _InventoryMasterScreenState extends State<InventoryMasterScreen> {
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class _InventoryMasterScreenState extends State<InventoryMasterScreen> {
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String _productName = ''; // 商品名
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List<Product> _products = [];
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int _stock = 0; // 在庫数
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Map<String, dynamic>? _newInventory; // 新規登録用データ
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int _minStock = 10; // 再仕入れ水準
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String? _supplierName; // 供給元
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@override
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@override
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void initState() {
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void initState() {
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super.initState();
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super.initState();
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// TODO: DatabaseHelper.instance.getInventory() を使用
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_loadProducts();
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}
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Future<void> _loadProducts() async {
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try {
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final products = await DatabaseHelper.instance.getProducts();
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if (mounted) setState(() => _products = products ?? const <Product>[]);
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} catch (e) {}
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}
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void _submitNewInventory() async {
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if (_newInventory == null || !(_newInventory!['product_code'] as String).isNotEmpty) return;
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try {
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final db = await DatabaseHelper.instance.database;
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// product_code の一意性チェック
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final existing = await db.query('inventory', where: "product_code = ?", whereArgs: [(_newInventory!['product_code'] as String)]);
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if (existing.isNotEmpty) {
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ScaffoldMessenger.of(context).showSnackBar(
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const SnackBar(content: Text('同じ JAN コードの在庫は既に存在します'), backgroundColor: Colors.orange),
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);
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return;
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}
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final inventoryData = <String, dynamic>{
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'product_code': _newInventory!['product_code'] as String,
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'name': _newInventory!['name'] as String? ?? '',
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'unit_price': (_newInventory!['unit_price'] as num?)?.toInt() ?? 0,
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'stock': (_newInventory!['stock'] as num?)?.toInt() ?? 0,
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'min_stock': (_newInventory!['min_stock'] as num?)?.toInt() ?? 10,
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'max_stock': (_newInventory!['max_stock'] as num?)?.toInt() ?? 1000,
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'supplier_name': _newInventory!['supplier_name'] as String? ?? '',
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};
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await DatabaseHelper.instance.insertInventory(inventoryData);
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if (mounted) ScaffoldMessenger.of(context).showSnackBar(
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const SnackBar(content: Text('在庫登録完了'), backgroundColor: Colors.green),
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);
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setState(() => _newInventory = null);
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_loadProducts();
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} catch (e) {
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if (mounted) ScaffoldMessenger.of(context).showSnackBar(
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SnackBar(content: Text('保存エラー：$e'), backgroundColor: Colors.red),
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);
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}
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}
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void _showAddDialog() {
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showDialog(
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context: context,
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builder: (context) => AlertDialog(
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title: const Text('新規在庫登録'),
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content: SingleChildScrollView(
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child: Column(
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mainAxisSize: MainAxisSize.min,
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crossAxisAlignment: CrossAxisAlignment.start,
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children: [
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TextField(
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decoration: const InputDecoration(labelText: 'JAN コード', hintText: '例：4901234567890'),
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onChanged: (v) => _newInventory?['product_code'] = v,
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),
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TextField(
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decoration: const InputDecoration(labelText: '商品名', hintText: '商品名を入力'),
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onChanged: (v) => _newInventory?['name'] = v,
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),
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TextField(
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decoration: const InputDecoration(labelText: '単価（円）', hintText: '0'),
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keyboardType: TextInputType.number,
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onChanged: (v) => _newInventory?['unit_price'] = int.tryParse(v),
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),
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TextField(
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decoration: const InputDecoration(labelText: '在庫数', hintText: '0'),
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keyboardType: TextInputType.number,
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onChanged: (v) => _newInventory?['stock'] = int.tryParse(v),
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),
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TextField(
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decoration: const InputDecoration(labelText: '最低在庫', hintText: '10'),
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keyboardType: TextInputType.number,
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onChanged: (v) => _newInventory?['min_stock'] = int.tryParse(v),
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),
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TextField(
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decoration: const InputDecoration(labelText: '最大在庫', hintText: '1000'),
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keyboardType: TextInputType.number,
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onChanged: (v) => _newInventory?['max_stock'] = int.tryParse(v),
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),
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TextField(
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decoration: const InputDecoration(labelText: '仕入先', hintText: '仕入先会社名'),
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onChanged: (v) => _newInventory?['supplier_name'] = v,
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),
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],
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),
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),
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actions: [
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TextButton(onPressed: () => Navigator.pop(context), child: const Text('キャンセル')),
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ElevatedButton(
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onPressed: _newInventory != null ? _submitNewInventory : null,
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child: const Text('登録'),
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),
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],
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),
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);
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}
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void _editInventory(int id) async {
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final product = await DatabaseHelper.instance.getProduct(id);
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if (product == null || mounted) return;
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showDialog(
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context: context,
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builder: (context) => AlertDialog(
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title: const Text('在庫編集'),
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content: SingleChildScrollView(
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child: Column(
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mainAxisSize: MainAxisSize.min,
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crossAxisAlignment: CrossAxisAlignment.start,
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children: [
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TextField(
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decoration: InputDecoration(labelText: 'JAN コード', hintText: product.productCode),
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readOnly: true,
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),
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TextField(
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decoration: const InputDecoration(labelText: '商品名'),
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controller: TextEditingController(text: product.name),
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onChanged: (v) {
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_updateInventory(id, {'name': v});
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},
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),
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TextField(
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decoration: const InputDecoration(labelText: '単価（円）'),
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keyboardType: TextInputType.number,
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onChanged: (v) => _updateInventory(id, {'unit_price': int.tryParse(v)}),
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),
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TextField(
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decoration: const InputDecoration(labelText: '在庫数'),
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keyboardType: TextInputType.number,
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onChanged: (v) => _updateInventory(id, {'stock': int.tryParse(v)}),
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),
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TextField(
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decoration: const InputDecoration(labelText: '最低在庫'),
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keyboardType: TextInputType.number,
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onChanged: (v) => _updateInventory(id, {'min_stock': int.tryParse(v)}),
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),
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TextField(
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decoration: const InputDecoration(labelText: '最大在庫'),
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keyboardType: TextInputType.number,
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onChanged: (v) => _updateInventory(id, {'max_stock': int.tryParse(v)}),
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),
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TextField(
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decoration: const InputDecoration(labelText: '仕入先'),
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onChanged: (v) => _updateInventory(id, {'supplier_name': v}),
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),
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],
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),
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),
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actions: [
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TextButton(onPressed: () => Navigator.pop(context), child: const Text('キャンセル')),
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ElevatedButton(
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onPressed: () => Navigator.pop(context),
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child: const Text('保存'),
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),
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],
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),
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);
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}
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void _updateInventory(int id, Map<String, dynamic> data) async {
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final inventoryData = <String, dynamic>{
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'product_code': data['product_code'] as String?,
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'name': data['name'] as String?,
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'unit_price': data['unit_price'] as int?,
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'stock': data['stock'] as int?,
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'min_stock': data['min_stock'] as int?,
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'max_stock': data['max_stock'] as int?,
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'supplier_name': data['supplier_name'] as String?,
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};
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try {
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await DatabaseHelper.instance.updateInventory(inventoryData);
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ScaffoldMessenger.of(context).showSnackBar(
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const SnackBar(content: Text('在庫更新完了'), backgroundColor: Colors.green),
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);
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_loadProducts();
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} catch (e) {}
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}
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}
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@override
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@override
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Widget build(BuildContext context) {
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Widget build(BuildContext context) {
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return Scaffold(
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return Scaffold(
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appBar: AppBar(title: const Text('在庫管理')),
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appBar: AppBar(
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body: SingleChildScrollView(
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title: const Text('在庫管理'),
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child: Padding(
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actions: [
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padding: const EdgeInsets.all(16),
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IconButton(icon: const Icon(Icons.refresh), onPressed: _loadProducts,),
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child: Column(
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],
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crossAxisAlignment: CrossAxisAlignment.stretch,
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children: [
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// 商品名入力
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TextField(
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decoration: const InputDecoration(hintText: '商品名', border: OutlineInputBorder()),
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onChanged: (value) => setState(() => _productName = value),
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),
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const SizedBox(height: 16),
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// 在庫数入力
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TextField(
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decoration: const InputDecoration(hintText: '在庫数', border: OutlineInputBorder()),
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keyboardType: TextInputType.number,
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onChanged: (value) => setState(() => _stock = int.tryParse(value) ?? 0),
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),
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const SizedBox(height: 16),
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// 再仕入れ水準入力
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TextField(
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decoration: const InputDecoration(hintText: '再仕入れ水準', border: OutlineInputBorder()),
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keyboardType: TextInputType.number,
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onChanged: (value) => setState(() => _minStock = int.tryParse(value) ?? 10),
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),
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const SizedBox(height: 16),
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// 供給元入力（簡易）
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TextField(
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decoration: const InputDecoration(hintText: '供給元', border: OutlineInputBorder()),
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onChanged: (value) => setState(() => _supplierName = value.isNotEmpty ? value : null),
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),
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const SizedBox(height: 16),
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// 在庫表示エリア（簡易）
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Card(
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child: ListTile(
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contentPadding: EdgeInsets.zero,
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title: const Text('現在の在庫'),
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subtitle: Text('${_stock}個', style: const TextStyle(fontSize: 18)),
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trailing: _stock <= _minStock ? const Icon(Icons.warning, color: Colors.orange) : const SizedBox(),
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),
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),
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const SizedBox(height: 16),
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// 保存ボタン（簡易）
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ElevatedButton(
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onPressed: () {
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if (mounted) {
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ScaffoldMessenger.of(context).showSnackBar(
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const SnackBar(content: Text('在庫データを更新しました')),
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);
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}
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},
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style: ElevatedButton.styleFrom(padding: const EdgeInsets.symmetric(vertical: 12)),
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child: const Text('更新'),
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),
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],
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),
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),
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),
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),
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body: _products.isEmpty ? Center(child: const Text('在庫データがありません')) :
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SingleChildScrollView(
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padding: const EdgeInsets.all(16),
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child: Column(
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crossAxisAlignment: CrossAxisAlignment.stretch,
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children: [
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Card(
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child: ListTile(
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title: const Text('新規登録'),
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subtitle: const Text('商品への在庫を登録'),
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trailing: const Icon(Icons.add_circle),
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onTap: _showAddDialog,
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),
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),
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const SizedBox(height: 16),
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ListView.builder(
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shrinkWrap: true,
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physics: const NeverScrollableScrollPhysics(),
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itemCount: _products.length,
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itemBuilder: (context, index) {
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final product = _products[index];
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return Card(
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margin: const EdgeInsets.only(bottom: 8),
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child: ListTile(
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title: Text(product.name),
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subtitle: Text('JAN: ${product.productCode} / ¥${product.unitPrice} × ${product.stock ?? 0}'),
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trailing: IconButton(icon: const Icon(Icons.edit), onPressed: () => _editInventory(product.id ?? 0),),
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),
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);
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},
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),
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],
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),
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),
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);
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);
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}
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}
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}
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}
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