Question

当我在我的front_end中编写或编辑某些内容时，它不会保存那些编辑内容。它重定向到详细视图并显示早期数据。我在哪里做错了？

我的代码

Models.py

from django.db import models
from django.template.defaultfilters import slugify
# Create your moels here.
class Post(models.Model):
    title = models.CharField(max_length=200)
    slug = models.SlugField(blank=True,default='')
    body = models.TextField()
    created_date = models.DateTimeField(auto_now_add=True,blank=True,null=True)
    def __str__(self):
        return self.title

    def save(self, *args,**kwargs):
        if not self.slug:
            self.slug = slugify(self.title)
            super(Post,self).save(*args,**kwargs)

Forms.py

from .models import Post
from django import forms

class PostForm(forms.ModelForm):
    class Meta:
        model = Post
        fields = ['title','body']

应用程序/ urls.py

urlpatterns = [ path('post/<int:pk>/edit/',views.edit_view, name = "edit_view")]

Views.py

def edit_view(request,pk):
    try:
        post = Post.objects.get(pk=pk)
    except:
        raise Http404('Page Not Found')
    form = PostForm(request.POST or None,instance= post)
    print(request.method)
    if request.method == 'POST':

        if form.is_valid:
            form.save()
            return redirect('detail_view', pk=pk)
    else:
        return render(request, 'edit.html',{'form_edit': form})

模板 edit.html

<form method="post" >
    {% csrf_token %}
    {{form_edit.as_p}}
    <input type="submit" value="ok">
</form>

Answer 1

在模型中，仅当未设置实例的slug值时，才调用save()方法。您需要像这样重写模型的save()：

def save(self, *args,**kwargs):
    if not self.slug:
        self.slug = slugify(self.title)
    super(Post,self).save(*args,**kwargs)

如果super().save()已填满且状态为空，则会在两种情况下调用self.slug。

Django中的更新功能视图未保存编辑

1 个答案: