我尝试了一些方法,但没有任何效果。该按钮应从文本框中键入城市刮下天气。当我对城市名称进行硬编码时,所有抓取均有效,但我不知道如何从HTML表单中将城市名称转换为views.py
。
html
:
<form method="POST "action="{% url 'weather' %}">
{% csrf_token %}
<input type="text" value="{{ city }}">
<button type="submit" class="btn btn-info">Get my weather</button>
</form>
views.py
def scrape_weather(request):
old_weather = Weather.objects.all()
old_weather.delete()
api_adress = "http://api.openweathermap.org/data/2.5/weather?q="
api_key = "&appid=3a99cf24b53d85f4afad6cafe99d3a34"
city = input()
#city = "warsaw"
url = api_adress + city + api_key
json_data = requests.get(url).json()
new_weather = json_data['weather'][0]['main']
degree_kelvin = int(json_data['main']['temp'])
degree = degree_kelvin-273
pressure = json_data['main']['pressure']
new_weather = Weather()
new_weather.degree = degree
new_weather.pressure = pressure
new_weather.weather = new_weather
new_weather.save()
if request.method == 'POST':
form = CityForm(request.POST)
if form.is_valid():
pass
else:
form = CityForm()
return render(request, "news/home.html", {'form': form})
forms.py
:
from django import forms
class CityForm(forms.Form):
city = forms.CharField(max_length=30)
if not city:
raise forms.ValidationError('You have to write something!')
答案 0 :(得分:0)
这与刮擦或注入无关。为了使浏览器从输入字段发送值,field元素需要具有name
属性。
<input type="text" name="city">
,然后在视图中获取它:
city = request.POST.get("city")
注意,我完全不确定为什么要使用CityForm,而没有使用它。
答案 1 :(得分:0)
In your template you can:
<form method="POST "action="{% url 'weather' %}">
{% csrf_token %}
{{ form }}
<button type="submit" class="btn btn-info">Get my weather</button>
</form>
That will manage all the business of widget( text input in this case) attributes such as name
for you.
Read this for more detail.