我的问题是这个代码显示记录是否有1条记录或多条...但我想删除是否有1条记录.... 任何关于良好代码编写的建议都是有责任的......
这是我的观点
def delete(请求): form = SearchForm(request.POST)
searched_data = Information.objects.filter(name="full_name").count()
d_data = None
if form.is_valid():
if (searched_data == 1):
d_data = Information.objects.filter(name= form.cleaned_data.get('full_name')).delete()
else:
d_data = Information.objects.filter(name=form.cleaned_data.get('full_name'))
context = {
'form': form,
'd_data': d_data,
}
return render(request, 'delete.html', context)
答案 0 :(得分:1)
除非表格有效,否则我不会做任何事情:
if form.is_valid():
d_data = Information.objects.filter(name=form.cleaned_data.get('full_name'))
if len(d_data) == 1:
d_data.delete()
d_data = None
else:
d_data = None
context = {
'form': form,
'd_data': d_data,
}
return render(request, 'delete.html', context)
注意:删除后,我将d_data
设置为None
。
要使用d_data.count()
或len(d_data)
,请参阅this