我是Django-python的新手,并尝试构建一个单页python-django网站,该网站将表单值提交给自己。但是最初没有提交表单时如何处理.get方法?
形式:
<form id="filters" action="{% url 'myapp:index' %}" method="GET">
{% csrf_token %}
<label><input type="checkbox" name="abc" value="abc" checked>Include abc</label>
<label><input type="checkbox" name="pqr" value="pqr" checked>Include abc</label>
<label><input type="checkbox" name="xyz" value="xyz" checked>Include abc</label>
<input type="submit" value="Submit">
</form>
Views.py:
from django.shortcuts import render
def index(request):
try:
abc = request.GET['abc']
context = {'abc':abc}
except (KeyError):
raise
else:
return render(request, 'myapp/index.html', context)
现在,当我最初为myapp打开索引页面时,它会引发
MultiValueDictKeyError
我假设是因为最初没有设置复选框。
如果我将abc = request.GET [&#39; abc&#39;]更改为
abc = request.GET.get['abc']
提出:
类型错误
&#39; instancemethod&#39;对象没有属性&#39; getitem &#39;
回溯:
response = middleware_method(request, callback, callback_args, callback_kwargs) if response: break if response is None: wrapped_callback = self.make_view_atomic(callback) try: response = wrapped_callback(request, *callback_args, **callback_kwargs) ... except Exception as e: # If the view raised an exception, run it through exception # middleware, and if the exception middleware returns a # response, use that. Otherwise, reraise the exception. for middleware_method in self._exception_middleware: response = middleware_method(request, e)
坚持并且无法理解这些错误。
我可以像在PHP中那样执行if(!isset($ _ POST [&#39; submit&#39;])),以便在按下提交之前不会提交我的python脚本吗?
答案 0 :(得分:2)
改变它
$9772385$,$3005A$
$99827837$,$3005A$
为:
abc = request.GET.get['abc']
并且,检查是否是GET方法:
使用:
abc = request.GET.get('abc')
的文档