Django更新一行
嗨,我正试图更新django中的一行,但我得到了错误Django更新一行,django,Django,嗨,我正试图更新django中的一行,但我得到了错误 update_form() takes exactly 2 arguments (1 given) 这是我的密码: view.py: def update_form(request, id): if request.method == 'POST': a=newleave.objects.get(id=id) form = leave_application(request.POST, instanc
update_form() takes exactly 2 arguments (1 given)
这是我的密码:
view.py:
def update_form(request, id):
if request.method == 'POST':
a=newleave.objects.get(id=id)
form = leave_application(request.POST, instance=a)
if form.is_valid():
form.save()
return HttpResponseRedirect('successful.html')
else:
a=newleave.objects.get(id=id)
form = leave_application(instance=a)
return render_to_response('update_form.html'{'form':form},
context_instance=RequestContext(request))
form.py:
class leave_application(forms.ModelForm):
class Meta:
model = newleave
fields =('First_Name', 'Last_Name', 'department', 'position', 'leave_type', 'Specify_details', 'start_Date', 'end_date', 'total_working_days', 'username')
更新_form.html:
<form action ="/update_form/" method="post">{%csrf_token%}
<table>
{{form.as_table}}
</table>
<br>
<input type="submit" name="submit" value="Save Record" >
{%csrf\u令牌%}
{{form.as_table}}
有人能告诉我我做错了什么吗?问题可能出在您的URL.py中
update\u表单
视图采用参数id
,因此您应该将其包含在url模式中
url(r'^update_form/(?P<id>\d+)/$', update_form, name='update_form')
并将其包括在形式行动中:
<form action ="/update_form/{{ id }}/" method="post">{%csrf_token%}
{%csrf\u令牌%}
使用url标记会稍微好一些:
<form action ="{% url 'update_form' %}" method="post">{%csrf_token%}
{%csrf\u令牌%}
您应该将行的id
传递到更新表单
视图:
<form action="{% url 'update_form' id %}" method="post">
在url.py中:
url(r'^update_form/(?P<id>\d+)/$', update_form, name='update_form'),
url(r'^update\u form/(?P\d+/$),update\u form,name='update\u form'),
url(r'^update_form/(?P<id>\d+)/$', update_form, name='update_form'),