Question

我希望从用户导入的标题自动生成slug，或者如果标题为空，则生成随机整数。我目前拥有它的方式，slug应该从表单标题填充，但是我得到一个错误，表示表单没有标题字段。

所以，我需要：

更改要从插入的标题
如果标题为空，则创建一个随机整数生成器（我假设在models.py和views.py中？）

有人可以帮帮我吗？

提前谢谢！我感谢任何帮助！

forms.py：

class PhotoUploadForm(forms.ModelForm):
    title = forms.CharField(
        widget=forms.TextInput(attrs={"placeholder": "Title of photo", "size": "30"})
    )
    description = forms.CharField(
        widget=forms.Textarea(attrs={"placeholder": "Description of photo"})
    )

    class Meta:
        model = Photo
        fields = ('category', 'title', 'description', 'image')

models.py：

class Photo(models.Model):
    creator = models.ForeignKey(MyUser, null=False, blank=False)
    title = models.CharField(max_length=30, null=True, blank=True)
    description = models.TextField(max_length=120, null=True, blank=True)
    image = models.ImageField(upload_to='user/photos/', null=True, blank=True)
    slug = models.SlugField(null=False, blank=False)
    active = models.BooleanField(default=True)
    timestamp = models.DateTimeField(auto_now_add=True, auto_now=False)
    updated = models.DateTimeField(auto_now_add=False, auto_now=True)

    class Meta:
        ordering = ['-timestamp']

    def __unicode__(self):
        return "%s" %(self.creator)

views.py：

def photo_upload_view(request, username):
    u = MyUser.objects.get(username=username)
    form = PhotoUploadForm()

    if request.method == 'POST':
        form = PhotoUploadForm(request.POST or None, request.FILES)
        new_slug = Photo.objects.get(slug=form.title)
        if form.is_valid():
            obj = form.save(commit=False)
            obj.creator = request.user
            obj.slug = slugify(new_slug)
            obj.save()
            messages.success(request, "Thank you! You have successfully posted your picture!")
            return HttpResponseRedirect('/')

        else:
            form = PhotoUploadForm()

    submit_btn = "Upload Post"

    context = {
        "submit_btn": submit_btn,
        "form": form
    }
    return render(request, "photos/photo_upload.html", context)

Answer 1

这一行是你的问题：

new_slug = Photo.objects.get(slug=form.title)

您将new_slug的值设置为检索到的对象，而不是字符串。那不会贬值。你可能只是想要这个：

new_slug = form.title

但是如果你真的想从Photo中检索一个值，那么最后引用那个属性，所以：

new_slug = Photo.objects.get(slug=form.title).slug

至于生成随机整数：

from random import randint
randint(0,100)

将返回0到100之间的随机整数（包括）。

有slug从标题填充或创建随机 - Django表格

1 个答案: