Python 如何对已使用CreateView的第一个模型中具有主键的模型使用CreateView
大家好,我正试图创建一个简单的待办事项列表,但我遇到了一些麻烦,首先我想创建一个任务,在其中我想创建一些活动,这是我无法完成的问题。 如何使用CreateView结束向其传递任务的pk来创建活动,以及如何在创建后反向传递相同的任务详细信息 非常感谢 型号:Python 如何对已使用CreateView的第一个模型中具有主键的模型使用CreateView,python,django,Python,Django,大家好,我正试图创建一个简单的待办事项列表,但我遇到了一些麻烦,首先我想创建一个任务,在其中我想创建一些活动,这是我无法完成的问题。 如何使用CreateView结束向其传递任务的pk来创建活动,以及如何在创建后反向传递相同的任务详细信息 非常感谢 型号: from django.db import models from django.core.urlresolvers import reverse class List(models.Model): title = models.C
from django.db import models
from django.core.urlresolvers import reverse
class List(models.Model):
title = models.CharField(blank=True, max_length=100)
class Meta:
ordering = ['id']
def __str__(self):
return self.title
def get_absolute_url(self):
return reverse('task-detail', kwargs={'pk': self.pk})
PRIORITY_CHOICES = (
(1, 'Low'),
(2, 'Normal'),
(3, 'High')
)
class Item(models.Model):
title = models.CharField(blank=True, max_length=100)
created = models.DateTimeField(auto_now=False, auto_now_add=True)
updated = models.DateTimeField(auto_now=True, auto_now_add=False)
priority = models.IntegerField(choices=PRIORITY_CHOICES, default=2)
completed = models.BooleanField(default=False)
todo_list = models.ForeignKey(List)
class Meta:
ordering = ['-priority', 'title']
观点:
class TaskDetailView(DetailView):
model = List
class TaskCreateView(CreateView):
model = List
fields = ['title']
success_url = '/home'
class TaskUpdateView(UpdateView):
model = List
fields = ['title']
template_name = 'core/update.html'
success_url = '/home'
class TaskDeleteView(DeleteView):
model = List
success_url = reverse_lazy('home')
class ActivityCreateView(CreateView):
model = Item
fields = 'title', 'priority', 'completed'
success_url = '/home'
class ActivityUpdateView(UpdateView):
model = Item
fields = 'title', 'priority', 'completed'
template_name = 'core/update_actvity.html'
success_url = '/home'
class ActivityDeleteView(DeleteView):
model = Item
success_url = reverse_lazy('home')
网址:
从django.conf.url导入url,包括
从django.contrib导入管理
从core.views导入ActivityCreateView、ActivityDeleteView、ActivityUpdateView
从core.views导入TaskDetailView、TaskCreateView、TaskUpdateView、TaskDeleteView、Home、MyView
URL模式=[
url(r“^admin/”,admin.site.url),
url(r“^accounts/”,包括('allauth.url'),
url(r'^$',Home.as_view(),name=“index”),
url(r'^home/$,MyView.as_view(),name=“home”),
url(r“^task/(?P[0-9]+)/$”,TaskDetailView.as_view(),name='task-detail'),
url(r“^task/(?P[0-9]+)/update/$”,TaskUpdateView.as_view(),name='task-update'),
url(r'^task/(?P[0-9]+)/delete/$”,TaskDeleteView.as_view(),name='task-delete'),
url(r“^task/add/$”,TaskCreateView.as_view(),name='task-create'),
]在表单中,您可以为父列表定义隐藏输入,然后在表单中使用有效方法检索父列表。。。例如:
class ItemModelForm(forms.ModelForm):
list_pk = forms.IntegerField(widget=forms.HiddenInput)
class Meta:
model = Item
fields = ['...']
然后:
def form_valid(self, form):
parent_list = List.objects.get(pk=form.cleaned_data['list_pk'])
...
...
您好,谢谢您的帮助,但现在我在/task/activity/add/'list\u pk'收到了关键错误。我可以查看完整的回溯吗?是的,我用回溯输入了一个新答案。我输入form\u class=ItemModelForm现在没有显示错误,但它没有保存数据。您必须将其保存在form\u有效方法中……也就是说,您必须调用save()在form_valid方法末尾的实例上
def form_valid(self, form):
parent_list = List.objects.get(pk=form.cleaned_data['list_pk'])
...
...