Django ManagementForm数据丢失或被篡改 [英] Django ManagementForm data is missing or has been tampered with
问题描述
我不断收到错误：
[u'ManagementForm data is missing or has been tampered with']
我也无法弄清楚为什么。这是我的观点：
I can't figure out why either. Here is my view:
def CreateWorkout(request):
WorkoutInlineFormSet = inlineformset_factory(workout,exercise)
if request.method == "POST" :
formset = WorkoutInlineFormSet(request.POST)
if formset.is_valid():
formset.save();
else:
formset = WorkoutInlineFormSet()
return render_to_response('submit.html',{'formset': formset},context_instance=RequestContext(request))
这里是我的模板：
<body>
<form method="POST" action ="">
{{ formset.management_form }}
<table>
{% for form in formset.forms %}
{{ form }}
{% endfor %}
</table>
</form>
</body>
我读过你必须包含 formset.management_form ，我有。我认为这将是一个简单的修复，但我无法弄清楚这个问题。
I've read that you have to include the formset.management_form, and I have. I thought that would be an easy fix, but I haven't been able to figure out the problem.
推荐答案
当你使用内联表单集，您需要提供对象所关联的实例。
When you use inline formset, you need to provide the instance that the objects relate to.
# First, fetch the instance from the db
workout = code_that_fetches_instance()
if request.method == "POST" :
formset = WorkoutInlineFormSet(request.POST, instance=workout)
...
else:
formset = WorkoutInlineFormSet(instance=workout)
文档使用
See the example in the docs on using an inline formset in a view for more information.
如果锻炼和练习是您的模型，您应该遵循Python约会并重命名他们锻炼和练习 。小写锻炼应该是您的表单中的所有练习都链接到的实例。
If workout and exercise are your models, you should follow the python convention and rename them Workout and Exercise. Lowercase workout should be the instance that all the exercises in your formset are linked to.
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