# from django.test import TestCase

import os
import sys
import datetime

import django



base_dir = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
sys.path.append(base_dir)  # 添加到系统环境变量

os.environ.setdefault("DJANGO_SETTINGS_MODULE", "vips5.settings")    # 加载项目的配置文件，demos是项目
django.setup()

from user import models

before_30min_datetime = (datetime.datetime.now()-datetime.timedelta(minutes=30)).strftime("%Y-%m-%d %H:%M")
current_datetime = (datetime.datetime.now()).strftime("%Y-%m-%d %H:%M")
queryset = models.WeatherWarning.objects.filter(sytime__gte=before_30min_datetime, sytime__lte=current_datetime)
print(queryset)