由于某些原因,我的表单集在提交后将无法验证。有什么办法可以解决这个问题吗?
class Department(models.Model):
department = models.CharField(verbose_name = "Department Name", max_length=100)
description = models.TextField(verbose_name = "Description", blank=True, null=True)
sp_description = models.TextField(verbose_name = "Description (Spanish)", blank=True, null=True)
phone = PhoneNumberField()
phone_ext = models.CharField(max_length=10, blank=True)
#Relations
provider = models.ForeignKey(Provider, blank=True, null=True)
services_offered = models.ManyToManyField(ServiceType)
def __unicode__(self):
return self.department
def display_step5(request):
msg = ''
email = request.session.get('email')
provider_obj = retrieve_provider_instance(email)
AddDepartmentFormSet = inlineformset_factory(Provider, Department, extra=0)
if is_authenticated(request):
AddDepartmentFormSet = inlineformset_factory(Provider, Department, extra=0)
if request.method=='POST':
if 'add_department' in request.POST:
cp = request.POST.copy()
cp['department-TOTAL_FORMS'] = int(cp['department-TOTAL_FORMS'])+ 1
new_department = AddDepartmentFormSet(cp, prefix='department', instance=provider_obj)
elif 'submit' in request.POST:
formset = AddDepartmentFormSet(request.POST, instance=provider_obj)
instances = formset.save(commit=False)
for instance in instances:
instance.provider = provider_obj
instance.save()
return HttpResponse("Departments have been added")
else:
new_department = AddDepartmentFormSet(prefix='department', instance=provider_obj)
else:
return HttpResponseRedirect(reverse('health.register.views.display_auth'))
return render_to_response('step5-test.html',
{'department': new_department}, context_instance=RequestContext(request))
<form method='post' action='{{request.path}}'>{% csrf_token %}
<fieldset>
<legend>Departments</legend>
{{ department.management_form }}
{% for form in department.forms %}
<HR> <div><table>{{form.as_table}}</table></div>
{% endfor %}
<BR/>
<input title='Add a new department' type='submit' name='add_department' value='Add-Another-Department' />
</fieldset>
<BR/><BR/>
<input title='Submit this form' type='submit' name='submit' value='Submit' />
</form>
后续(解决方案):
布兰特提供了一些关于错误发生原因的见解。就我的情况而言,他的洞察力帮助我构建了一个更适合我情况的黑客系统。此技巧似乎适用于模板中可能以某种方式修改过的表单集。在我的例子中,我的表单集变得很复杂,需要一些ajax来让它更加用户友好。
“retrieve_provider_instance(email)”是一种基于数据库中设置的各种条件(大约200行代码呕吐)检索provider对象的动态方法。
经过一些广泛的调试,下面的黑客程序对我有效。我通过在模板的“for”循环中添加以下隐藏字段来解决这个问题
{% {for form in formset.forms %}
<tr>
<td>
{% if form.instance.pk %} <!--- if instance already exists on db --->
{{ form.DELETE }}
<input type='hidden' name="department_set-{{ forloop.counter0 }}-id" id="id_department_set-{{ forloop.counter0 }}-id" value={{ form.instance.pk }} />
{% endif %}
Name: <br/> {{ form.department}} <br/>
Phone Number: <br/> {{ form.phone }} <br/>
Phone Ext: <br/> {{ form.phone_ext }}</td>
<td>Description: <br/> {{ form.description }}</td>
<td>Description (Spanish): <br/> {{ form.sp_description }}</td>
<td>Services Provided: <br/> {{ form.services_offered }}</td>
<td></td>
</tr>
{% endfor %}
我接受了马克的回答,因为它更适用于我提出的具体问题。希望这将有助于将来尝试实现此示例的其他用户。实际上,在提交时指定“前缀”是正确的方法,也是最有意义的。
谢谢你的回复。
谨致问候, 马特
跟进:我想我可能发现了部分问题。但是,这个问题还没有解决。
以下是一些可能有助于解决问题的附加信息。不正确的POST数据会把事情搞砸吗?如果是的话,我该怎么解决这个问题?
这是在我提交表单集之后发生的事情(在这种情况下,只有一个表单):
回溯如下:
File "/home/mhjohnson/webapps/resourcedb/lib/python2.6/django/forms/formsets.py" in _management_form 68. raise ValidationError('ManagementForm data is missing or has been tampered with')
这是我的帖子数据:
department-0-phone_ext -----> u'222'
department-0-id -----> u''
department-0-services_offered -----> u'2'
department-0-phone -----> u'222-222-2222'
department-INITIAL_FORMS -----> u'0'
submit -----> u'Submit'
department-MAX_NUM_FORMS -----> u''
department-0-department -----> u'Test 1'
department-0-provider -----> u''
department-TOTAL_FORMS -----> u'1'
csrfmiddlewaretoken -----> u'92a39322b16ed7e5e10dbd6c5ac64bf4'
department-0-description -----> u'Blah blah'
department-0-sp_description -----> u'....'
有什么想法吗?
你的问题是:
如果没有帖子,则传递前缀“department”。如果帖子中有“add_department”,则传递前缀“department”。但是,当“submit”在POST中时,您不会传递前缀。没有前缀,表单集无法在文章中找到正确的数据。
有两件事向我扑来。。。
首先,你不需要做这个部分:
当你这样做的时候:
第二,你在上面的代码:
可能不起作用。在你提供的回溯中,它看起来不像是提供者正在到达那里。。。
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