python_weather/web/data/aqi_data.py

import json

from sqlalchemy import text


def aqi_data(session):
    query2 = text('''
    SELECT city_name,aqi,sqiText
    FROM aqi_now_analyse''')
    data = session.execute(query2).fetchall()
    data1 = []
    for idx, row in enumerate(data):
        data1.append(
            {
                "name": row[0],
                "value": [[idx + 1, float(row[1]), row[2]]],
            }
        )
    # Serialize the list of dictionaries to JSON
    data = json.dumps(data1, ensure_ascii=False, indent=4)

    # 将 JSON 数据写入 JavaScript 文件
    with open('data.js', 'a', encoding='utf-8') as js_file:
        js_file.write('const Chart6_Data = ')
        js_file.write(data)
        js_file.write("\n\n")