Update app.py
Browse files
app.py
CHANGED
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@@ -321,6 +321,142 @@ def plot_ph():
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@app.route("/")
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def index():
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return flask.render_template('index.html')
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@app.route('/plot_ph_week', methods=['GET'])
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def plot_ph_week():
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try:
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# Получаем номер недели из параметров запроса
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week_number = request.args.get('week')
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# Если параметра нет, показываем форму выбора
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if not week_number:
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return '''
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<html>
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<body>
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<h1>Выберите неделю для графика pH</h1>
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<form method="GET">
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<label for="week">Номер недели (1-30):</label>
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<input type="number" id="week" name="week" min="1" max="30" required>
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<br><br>
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<button type="submit">Показать график</button>
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</form>
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</body>
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</html>
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'''
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# Проверяем, что введённое значение - число от 1 до 30
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try:
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week_number = int(week_number)
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if week_number < 1 or week_number > 30:
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raise ValueError
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except ValueError:
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return '''
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<html>
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<body>
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<h1>Ошибка!</h1>
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<p>Введите номер недели от 1 до 30.</p>
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<button onclick="window.location.href='/plot_ph_week'">Назад</button>
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</body>
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</html>
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'''
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# Подключаемся к базе данных
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conn = sqlite3.connect('system_data.db')
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cursor = conn.cursor()
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# Проверяем, существует ли таблица
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cursor.execute("SELECT name FROM sqlite_master WHERE type='table' AND name='system_data'")
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table_exists = cursor.fetchone()
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if not table_exists:
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return '''
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<html>
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<body>
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<h1>Ошибка!</h1>
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<p>Таблица system_data не существует.</p>
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<button onclick="window.location.href='/plot_ph_week'">Назад</button>
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</body>
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</html>
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'''
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# Выполняем запрос на выборку данных за выбранную неделю
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cursor.execute('''
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SELECT date_time, ph, dey
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FROM system_data
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WHERE wek = ?
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ORDER BY date_time
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''', (week_number,))
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rows = cursor.fetchall()
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conn.close()
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# Проверяем, есть ли данные
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if not rows:
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return '''
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<html>
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<body>
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<h1>Данные отсутствуют</h1>
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<p>Для выбранной недели нет данных.</p>
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<button onclick="window.location.href='/plot_ph_week'">Выбрать другую неделю</button>
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</body>
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</html>
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'''
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# Разделяем данные на дату и день недели
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dates = [f"{row[0]} (d: {row[2]})" for row in rows] # Дата и день недели
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ph_values = [float(row[1]) for row in rows] # Значения pH
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# Создаём график
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plt.figure(figsize=(15, 6))
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plt.plot(dates, ph_values, marker='o', linestyle='-', color='b')
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plt.title(f'График pH за {week_number}-ю неделю')
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plt.xlabel('Дата и день недели')
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plt.ylabel('Значение pH')
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plt.xticks(rotation=90)
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plt.grid(True)
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plt.gcf().subplots_adjust(bottom=0.4)
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# Сохраняем график в буфер
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buffer = io.BytesIO()
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plt.savefig(buffer, format='png')
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buffer.seek(0)
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# Кодируем график в base64
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plot_data = base64.b64encode(buffer.getvalue()).decode('utf-8')
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# Возвращаем HTML с графиком и кнопками
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return f'''
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<html>
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<body>
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<h1>График pH за {week_number}-ю неделю</h1>
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<button onclick="window.location.href='/plot_ph_week'">Выбрать другую неделю</button>
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<button onclick="window.location.reload()">Обновить данные</button>
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<br><br>
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<img src="data:image/png;base64,{plot_data}" alt="График pH">
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</body>
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</html>
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'''
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except Exception as e:
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return jsonify({'status': 'error', 'message': str(e)}), 500
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@app.route("/")
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def index():
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return flask.render_template('index.html')
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