我正在按照指南創建 Django 中心給出的評論，https://djangocentral.com/creating-comments-system-with-django/并且它正在作業。但是，我正在使用{{ form.as_p }}which 將提供 3 個欄位，如表單所說，包括姓名、電子郵件和正文。但我想有預定義的名稱，這將是您登錄的用戶名和附加到該帳戶的電子郵件。我將如何繼續創建它？
表格.py
class CommentForm(forms.ModelForm):
class Meta:
model = Comment
fields = ['name', 'email', 'body']
模型.py
class Comment(models.Model):
post = models.ForeignKey(Post, related_name='comments', on_delete=models.CASCADE)
name = models.CharField(max_length=255)
email = models.EmailField()
body = models.TextField()
date_added = models.DateTimeField(auto_now_add=True)
class Meta:
ordering = ['-date_added']
def __str__(self):
return self.name
視圖.py
def post_detail(request, category_slug, slug, status=Post.ACTIVE):
post = get_object_or_404(Post, slug=slug)
if request.method == 'POST':
form = CommentForm(request.POST)
if form.is_valid():
comment = form.save(commit=False)
comment.post = post
comment.save()
return redirect('post_detail', category_slug=category_slug, slug=slug)
else:
form = CommentForm()
return render(request, 'blog/post_detail.html', {'post': post, 'form': form})
在 html 模板中
{% if user.is_authenticated %}
<h2 class="subtitle is-4">Comments</h2>
<form method="post" class="mb-6">
{% csrf_token %}
{{ form.as_p }}
<div class="field">
<div class="control">
<button class="button is-success">Submit comment</button>
</div>
</div>
</form>
{% endif %}
uj5u.com熱心網友回復：
如果要預先設定用戶名和電子郵件欄位，可以使用如下initial表單引數：
視圖.py
def post_detail(request, category_slug, slug, status=Post.ACTIVE):
post = get_object_or_404(Post, slug=slug)
if request.method == 'POST':
form = CommentForm(request.POST)
if form.is_valid():
comment = form.save(commit=False)
comment.post = post
comment.save()
return redirect('post_detail', category_slug=category_slug, slug=slug)
else:
user = request.user
form = CommentForm(initial={"name": user.username, "email": user.email})
return render(request, 'blog/post_detail.html', {'post': post, 'form': form})
表格.py
class CommentForm(forms.ModelForm):
def __init__(self, *args, **kwargs):
super().__init__(*args, **kwargs)
self.fields['name'].disabled = True
self.fields['email'].disabled = True
# OR set readonly widget attribute.
# self.fields['name'].widget.attrs['readonly'] = True
# self.fields['email'].widget.attrs['readonly'] = True
class Meta:
model = Comment
fields = ['name', 'email', 'body']
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