[英]Django-Taggit saving tags from a model field
I am building a post editor for my website. 我正在为我的网站建立一个帖子编辑器。 One of the fields I can edit is for tags.
我可以编辑的其中一个字段是标签。 However when I save the post everything updates correctly and no errors are thrown but any changes I made to the tags field are not saved.
但是,当我保存帖子时,所有更新都正确,并且没有抛出任何错误,但我对标签字段所做的任何更改都不会保存。
# Views.py
class EditPostView(UpdateView):
form_class = EditPostForm
model = Post
template_name = 'myapp/editpost.html'
def get(self, request, pk):
if (not request.user.is_superuser):
return HttpResponseForbidden()
post = Post.objects.get(id=pk)
if (post is None):
return HttpResponseNotFound()
form = self.form_class(instance=post)
return render(request, self.template_name, {'form': form, 'post': post})
def post(self, request, pk):
if (not request.user.is_superuser):
return HttpResponseForbidden()
post = Post.objects.get(id=pk)
if (post is None):
return HttpResponseNotFound()
form = self.form_class(request.POST, instance=post)
if (form.is_valid()):
post.title = form.cleaned_data['title']
post.content_type = form.cleaned_data['content_type']
post.screenshot = form.cleaned_data['screenshot']
post.tags = form.cleaned_data['tags']
post.body = form.cleaned_data['body']
post.nsfw = form.cleaned_data['nsfw']
post.allow_comments = form.cleaned_data['allow_comments']
post.display_edited = form.cleaned_data['display_edited']
post.files = form.cleaned_data['files']
post.date_edited = datetime.now()
post.save()
return redirect('/posts/' + str(post.id))
else:
return HttpResponseNotFound()
return HttpResponseNotFound()
#Forms.py
class PostForm(forms.ModelForm):
class Meta:
model = Post
fields = ['title', 'content_type', 'screenshot', 'body', 'tags', 'nsfw', 'allow_comments', 'files']
widgets = {
'screenshot': forms.TextInput(attrs={'placeholder': 'URL...'}),
'tags': TagWidget(),
}
labels = {
'files': 'Attachments',
}
# Models.py
class Post(models.Model):
title = models.CharField(max_length=256)
disclaimer = models.CharField(max_length=256, blank=True)
BLOGS = 'blogs'
APPLICATIONS = 'applications'
GAMES = 'games'
WEBSITES = 'websites'
GALLERY = 'gallery'
PRIMARY_CHOICES = (
(BLOGS, 'Blogs'),
(APPLICATIONS, 'Applications'),
(GAMES, 'Games'),
(WEBSITES, 'Websites'),
)
content_type = models.CharField(max_length=256, choices=PRIMARY_CHOICES, default=BLOGS)
screenshot = models.CharField(max_length=256, blank=True)
tags = TaggableManager()
body = RichTextField()
date_posted = models.DateTimeField(default=datetime.now)
date_edited = models.DateTimeField(blank=True, null=True)
visible = models.BooleanField(default=True)
nsfw = models.BooleanField()
display_edited = models.BooleanField(default=False)
allow_comments = models.BooleanField(default=True)
files = models.ManyToManyField(File, blank=True)
def __str__(self):
if (self.visible == False):
return '(Hidden) ' + self.title + ' in ' + self.content_type
return self.title + ' in ' + self.content_type
You're doing a lot of unnecessary work here. 你在这里做了很多不必要的工作。 You're not leveraging the power of the
UpdateView
. 您没有利用
UpdateView
。 This is all you should need. 这就是你应该需要的。 It will call
form.save()
and everything for you 它将为您调用
form.save()
和一切
from django.http import HttpResponseForbidden
from django.shortcuts import get_object_or_404
from django.views.generic.edit import UpdateView
class EditPostView(UpdateView):
form_class = EditPostForm
model = Post
template_name = 'myapp/editpost.html'
def dispatch(self, *args, **kwargs):
if not self.request.user.is_superuser:
return HttpResponseForbidden()
return super(EditPostView, self).dispatch(*args, **kwargs)
def get_object(self, queryset=None):
return get_object_or_404(Post, id=self.kwargs['id'])
def get_success_url(self):
return '/posts/{0}'.format(self.object.id)
Edit: bonus points if you get rid of get_success_url
and add a get_absolute_url
method to the Post
model. 编辑:如果你摆脱
get_success_url
并将一个get_absolute_url
方法添加到Post
模型,则可获得奖励积分。
class Post(models.Model):
...
def save(self, *args, **kwargs):
self.date_edited = datetime.now()
super(Post, self).save(*args, **kwargs)
def get_absolute_url(self):
return '/posts/{0}'.format(self.id)
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