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models.py
....
class ProductsTbl(models.Model):
.....
slug = models.SlugField(unique=True)
user = models.ForeignKey(User, blank=True, null=True)
useredit = models.CharField(max_length=32, blank=True, null=True)
image = models.ImageField(upload_to=get_imagep_Product, blank=True)
def __unicode__(self):
return self.name
def save(self, *args, **kwargs):
''' On save, update timestamps '''
if not self.id:
self.created = timezone.now()
return super(ProductsTbl, self).save(*args, **kwargs)
def get_image_path(instance, filename):
return '/'.join(['thing_images', instance.thing.slug, filename])
class Upload(models.Model):
thing = models.ForeignKey(ProductsTbl, related_name="uploads")
image = models.ImageField(upload_to=get_image_path) #delete or upload image for this one
def save(self, *args, **kwargs):
super(Upload, self).save(*args, **kwargs)
if self.image:
image = Image.open(self.image)
i_width, i_height = image.size
max_size = (640,480)
if i_width > 1000:
image.thumbnail(max_size, Image.ANTIALIAS)
image.save(self.image.path)
和我的views.py功能，它是刪除類上傳圖片（ models.Model）models.py的，
views.py
.....
@login_required
def delete_upload(request, id):
# grab the image
upload = Upload.objects.get(id=id)
upload.thing.useredit = request.user.username
upload.save()
# security check
# if upload.thing.user != request.user:
# raise Http404
# delete the image
upload.delete()
# refresh the edit page
return redirect('edit_thing_uploads', slug=upload.thing.slug)
我所要做的是當我刪除圖像時，我必須將「user」寫入 「useredit」。
然而,,當從來沒有我刪除了 「用戶」 不會寫入 「USEREDIT」 ,,對比度的圖像，這是我
edit_thing_uploads.html
{% extends 'base.html' %}
{% block title %}
Edit {{ thing.name }}'s Images - {{ block.super }} {% endblock %}
{% block content %}
<h1>Edit {{ thing.name }}'s Images</h1>
<h2>Uploaded images</h2>
{% for upload in uploads %}
<img src="{{ upload.image.url }}" alt="" />
<a href="{% url 'delete_upload' id=upload.id %}">Delete</a>
{% endfor %}
<h2>Upload a new image</h2>
<form role="form" action="" method="post" enctype="multipart/form-data">
{% csrf_token %}
{{ form.as_p }}
<input type="submit" value="Submit" />
</form>
{% endblock %}
當我上傳一張圖片時，它會將「用戶」寫入「useredit」，成功上傳圖片的功能
views.py
@login_required
def edit_thing_uploads(request, slug):
# grab the object...
thing = ProductsTbl.objects.get(slug=slug)
# double checking just for security
# if thing.user != request.user:
# raise Http404
form_class = ProductsTblUploadForm
# if we're coming to this view from a submitted form,
if request.method == 'POST':
# grab the data from the submitted form, # note the new "files" part
form = form_class(data=request.POST,files=request.FILES, instance=thing)
if form.is_valid():
thing = form.save(commit=False)
thing.useredit = request.user.username
thing.save()
# create a new object from the submitted form
Upload.objects.create(
image=form.cleaned_data['image'],
thing=thing,
)
return redirect('edit_thing_uploads', slug=thing.slug)
# otherwise just create the form
else:
form = form_class(instance=thing)
# grab all the object's images
uploads = thing.uploads.all()
# and render the template
return render(request, 'things/edit_thing_uploads.html', {
'thing': thing,
'form': form,
'uploads': uploads,
})
不過,,我不得不讓「用戶」到「USEREDIT」當我還刪除,,,我該怎麼辦呢？謝謝！