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| from flask import Flask, render_template_string, request, redirect, url_for | |
| import json | |
| import os | |
| import logging | |
| app = Flask(__name__) | |
| DATA_FILE = 'products.json' | |
| # Настройка логирования | |
| logging.basicConfig(level=logging.DEBUG) | |
| # Загрузка данных из JSON-файла | |
| def load_data(): | |
| if os.path.exists(DATA_FILE): | |
| try: | |
| with open(DATA_FILE, 'r', encoding='utf-8') as file: | |
| return json.load(file) | |
| except json.JSONDecodeError: | |
| logging.error("Ошибка: Невозможно декодировать JSON файл.") | |
| return [] | |
| return [] | |
| # Сохранение данных в JSON-файл | |
| def save_data(data): | |
| with open(DATA_FILE, 'w', encoding='utf-8') as file: | |
| json.dump(data, file, ensure_ascii=False, indent=4) | |
| # Главная страница каталога | |
| def catalog(): | |
| products = load_data() | |
| catalog_html = ''' | |
| <!DOCTYPE html> | |
| <html lang="en"> | |
| <head> | |
| <meta charset="UTF-8"> | |
| <meta name="viewport" content="width=device-width, initial-scale=1.0"> | |
| <title>Каталог</title> | |
| <style> | |
| body { | |
| font-family: Arial, sans-serif; | |
| margin: 20px; | |
| background-color: #f9f9f9; | |
| } | |
| h1 { | |
| color: #333; | |
| } | |
| .product { | |
| background-color: #fff; | |
| border: 1px solid #ddd; | |
| padding: 15px; | |
| margin-bottom: 10px; | |
| border-radius: 5px; | |
| } | |
| .product h2 { | |
| margin-top: 0; | |
| color: #555; | |
| } | |
| .product p { | |
| color: #777; | |
| } | |
| </style> | |
| </head> | |
| <body> | |
| <h1>Каталог товаров</h1> | |
| {% for product in products %} | |
| <div class="product"> | |
| <h2>{{ product['name'] }}</h2> | |
| <p><strong>Цена:</strong> {{ product['price'] }} руб.</p> | |
| <p><strong>Описание:</strong> {{ product['description'] }}</p> | |
| </div> | |
| {% endfor %} | |
| </body> | |
| </html> | |
| ''' | |
| return render_template_string(catalog_html, products=products) | |
| # Админ-панель для добавления товаров | |
| def admin(): | |
| if request.method == 'POST': | |
| name = request.form.get('name') | |
| price = request.form.get('price') | |
| description = request.form.get('description') | |
| logging.debug(f"Полученные данные из формы: name={name}, price={price}, description={description}") | |
| if name and price and description: | |
| try: | |
| price = float(price) | |
| except ValueError: | |
| logging.error("Ошибка: Цена должна быть числом.") | |
| return "Ошибка: Цена должна быть числом.", 400 | |
| products = load_data() | |
| products.append({ | |
| 'name': name, | |
| 'price': price, | |
| 'description': description | |
| }) | |
| save_data(products) | |
| return redirect(url_for('admin')) | |
| products = load_data() | |
| admin_html = ''' | |
| <!DOCTYPE html> | |
| <html lang="en"> | |
| <head> | |
| <meta charset="UTF-8"> | |
| <meta name="viewport" content="width=device-width, initial-scale=1.0"> | |
| <title>Админ-панель</title> | |
| <style> | |
| body { | |
| font-family: Arial, sans-serif; | |
| margin: 20px; | |
| background-color: #f9f9f9; | |
| } | |
| h1 { | |
| color: #333; | |
| } | |
| form { | |
| background-color: #fff; | |
| padding: 20px; | |
| border: 1px solid #ddd; | |
| border-radius: 5px; | |
| max-width: 400px; | |
| } | |
| label { | |
| display: block; | |
| margin-top: 10px; | |
| color: #555; | |
| } | |
| input, textarea { | |
| width: 100%; | |
| padding: 8px; | |
| margin-top: 5px; | |
| border: 1px solid #ddd; | |
| border-radius: 4px; | |
| } | |
| button { | |
| margin-top: 15px; | |
| padding: 10px 15px; | |
| background-color: #28a745; | |
| color: white; | |
| border: none; | |
| border-radius: 4px; | |
| cursor: pointer; | |
| } | |
| button:hover { | |
| background-color: #218838; | |
| } | |
| .product-list { | |
| margin-top: 20px; | |
| } | |
| .product-item { | |
| background-color: #fff; | |
| border: 1px solid #ddd; | |
| padding: 10px; | |
| margin-bottom: 10px; | |
| border-radius: 5px; | |
| } | |
| </style> | |
| </head> | |
| <body> | |
| <h1>Добавление товара</h1> | |
| <form method="POST"> | |
| <label for="name">Название товара:</label> | |
| <input type="text" id="name" name="name" required> | |
| <label for="price">Цена:</label> | |
| <input type="number" id="price" name="price" step="0.01" required> | |
| <label for="description">Описание:</label> | |
| <textarea id="description" name="description" rows="4" required></textarea> | |
| <button type="submit">Добавить товар</button> | |
| </form> | |
| <div class="product-list"> | |
| <h2>Список товаров</h2> | |
| {% for product in products %} | |
| <div class="product-item"> | |
| <strong>{{ product['name'] }}</strong> - {{ product['price'] }} руб. | |
| <p>{{ product['description'] }}</p> | |
| </div> | |
| {% endfor %} | |
| </div> | |
| </body> | |
| </html> | |
| ''' | |
| return render_template_string(admin_html, products=products) | |
| if __name__ == '__main__': | |
| app.run(host='0.0.0.0', port=7860) |