def delete(request, image_id):
image = get_object_or_404(get_image_model(), id=image_id)
if not permission_policy.user_has_permission_for_instance(request.user, 'delete', image):
return permission_denied(request)
if request.method == 'POST':
image.delete()
messages.success(request, _("Image '{0}' deleted.").format(image.title))
return redirect('wagtailimages:index')
return render(request, "wagtailimages/images/confirm_delete.html", {
'image': image,
})
def delete(request, image_id):
image = get_object_or_404(get_image_model(), id=image_id)
if not request.is_ajax():
return HttpResponseBadRequest("Cannot POST to this view without AJAX")
if not permission_policy.user_has_permission_for_instance(request.user, 'delete', image):
raise PermissionDenied
image.delete()
return JsonResponse({
'success': True,
'image_id': int(image_id),
})
def url_generator(request, image_id):
image = get_object_or_404(get_image_model(), id=image_id)
if not permission_policy.user_has_permission_for_instance(request.user, 'change', image):
return permission_denied(request)
form = URLGeneratorForm(initial={
'filter_method': 'original',
'width': image.width,
'height': image.height,
})
return render(request, "wagtailimages/images/url_generator.html", {
'image': image,
'form': form,
})
def generate_url(request, image_id, filter_spec):
# Get the image
Image = get_image_model()
try:
image = Image.objects.get(id=image_id)
except Image.DoesNotExist:
return JsonResponse({'error': "Cannot find image."}, status=404)
# Check if this user has edit permission on this image
if not permission_policy.user_has_permission_for_instance(
request.user, 'change', image):
return JsonResponse(
{
'error':
"You do not have permission to generate a URL for this image."
},
status=403)
# Parse the filter spec to make sure its valid
try:
Filter(spec=filter_spec).operations
except InvalidFilterSpecError:
return JsonResponse({'error': "Invalid filter spec."}, status=400)
# Generate url
signature = generate_signature(image_id, filter_spec)
url = reverse('wagtailimages_serve',
args=(signature, image_id, filter_spec))
# Get site root url
try:
site_root_url = Site.objects.get(is_default_site=True).root_url
except Site.DoesNotExist:
site_root_url = Site.objects.first().root_url
# Generate preview url
preview_url = reverse('wagtailimages:preview',
args=(image_id, filter_spec))
return JsonResponse(
{
'url': site_root_url + url,
'preview_url': preview_url
}, status=200)
def edit(request, image_id, callback=None):
Image = get_image_model()
ImageForm = get_image_edit_form(Image)
image = get_object_or_404(Image, id=image_id)
if not request.is_ajax():
return HttpResponseBadRequest("Cannot POST to this view without AJAX")
if not permission_policy.user_has_permission_for_instance(
request.user, 'change', image):
raise PermissionDenied
form = ImageForm(request.POST,
request.FILES,
instance=image,
prefix='image-' + image_id,
user=request.user)
if form.is_valid():
form.save()
# Reindex the image to make sure all tags are indexed
for backend in get_search_backends():
backend.add(image)
return JsonResponse({
'success': True,
'image_id': int(image_id),
})
else:
return JsonResponse({
'success':
False,
'image_id':
int(image_id),
'form':
render_to_string('wagtailimages/multiple/edit_form.html', {
'image': image,
'form': form,
},
request=request),
})
def url_generator(request, image_id):
image = get_object_or_404(get_image_model(), id=image_id)
if not permission_policy.user_has_permission_for_instance(
request.user, 'change', image):
return permission_denied(request)
form = URLGeneratorForm(
initial={
'filter_method': 'original',
'width': image.width,
'height': image.height,
})
return TemplateResponse(request, "wagtailimages/images/url_generator.html",
{
'image': image,
'form': form,
})
def delete(request, image_id):
image = get_object_or_404(get_image_model(), id=image_id)
if not permission_policy.user_has_permission_for_instance(
request.user, 'delete', image):
raise PermissionDenied
next_url = get_valid_next_url_from_request(request)
if request.method == 'POST':
image.delete()
messages.success(request,
_("Image '{0}' deleted.").format(image.title))
return redirect(next_url) if next_url else redirect(
'wagtailimages:index')
return TemplateResponse(request,
"wagtailimages/images/confirm_delete.html", {
'image': image,
'next': next_url,
})
def url_generator(request, image_id):
image = get_object_or_404(get_image_model(), id=image_id)
if not permission_policy.user_has_permission_for_instance(
request.user, "change", image):
raise PermissionDenied
form = URLGeneratorForm(
initial={
"filter_method": "original",
"width": image.width,
"height": image.height,
})
return TemplateResponse(
request,
"wagtailimages/images/url_generator.html",
{
"image": image,
"form": form,
},
)
def generate_url(request, image_id, filter_spec):
# Get the image
Image = get_image_model()
try:
image = Image.objects.get(id=image_id)
except Image.DoesNotExist:
return JsonResponse({
'error': "Cannot find image."
}, status=404)
# Check if this user has edit permission on this image
if not permission_policy.user_has_permission_for_instance(request.user, 'change', image):
return JsonResponse({
'error': "You do not have permission to generate a URL for this image."
}, status=403)
# Parse the filter spec to make sure its valid
try:
Filter(spec=filter_spec).operations
except InvalidFilterSpecError:
return JsonResponse({
'error': "Invalid filter spec."
}, status=400)
# Generate url
signature = generate_signature(image_id, filter_spec)
url = reverse('wagtailimages_serve', args=(signature, image_id, filter_spec))
# Get site root url
try:
site_root_url = Site.objects.get(is_default_site=True).root_url
except Site.DoesNotExist:
site_root_url = Site.objects.first().root_url
# Generate preview url
preview_url = reverse('wagtailimages:preview', args=(image_id, filter_spec))
return JsonResponse({'url': site_root_url + url, 'preview_url': preview_url}, status=200)
def edit(request, image_id, callback=None):
Image = get_image_model()
ImageForm = get_image_edit_form(Image)
image = get_object_or_404(Image, id=image_id)
if not request.is_ajax():
return HttpResponseBadRequest("Cannot POST to this view without AJAX")
if not permission_policy.user_has_permission_for_instance(request.user, 'change', image):
raise PermissionDenied
form = ImageForm(
request.POST, request.FILES, instance=image, prefix='image-' + image_id, user=request.user
)
if form.is_valid():
form.save()
# Reindex the image to make sure all tags are indexed
for backend in get_search_backends():
backend.add(image)
return JsonResponse({
'success': True,
'image_id': int(image_id),
})
else:
return JsonResponse({
'success': False,
'image_id': int(image_id),
'form': render_to_string('wagtailimages/multiple/edit_form.html', {
'image': image,
'form': form,
}, request=request),
})
def edit(request, image_id):
Image = get_image_model()
ImageForm = get_image_form(Image)
image = get_object_or_404(Image, id=image_id)
if not permission_policy.user_has_permission_for_instance(
request.user, 'change', image):
return permission_denied(request)
if request.method == 'POST':
original_file = image.file
form = ImageForm(request.POST,
request.FILES,
instance=image,
user=request.user)
if form.is_valid():
if 'file' in form.changed_data:
# Set new image file size
image.file_size = image.file.size
# Set new image file hash
image.file.seek(0)
image._set_file_hash(image.file.read())
image.file.seek(0)
form.save()
if 'file' in form.changed_data:
# if providing a new image file, delete the old one and all renditions.
# NB Doing this via original_file.delete() clears the file field,
# which definitely isn't what we want...
original_file.storage.delete(original_file.name)
image.renditions.all().delete()
# Reindex the image to make sure all tags are indexed
search_index.insert_or_update_object(image)
messages.success(request,
_("Image '{0}' updated.").format(image.title),
buttons=[
messages.button(
reverse('wagtailimages:edit',
args=(image.id, )),
_('Edit again'))
])
return redirect('wagtailimages:index')
else:
messages.error(request,
_("The image could not be saved due to errors."))
else:
form = ImageForm(instance=image, user=request.user)
# Check if we should enable the frontend url generator
try:
reverse('wagtailimages_serve', args=('foo', '1', 'bar'))
url_generator_enabled = True
except NoReverseMatch:
url_generator_enabled = False
if image.is_stored_locally():
# Give error if image file doesn't exist
if not os.path.isfile(image.file.path):
messages.error(
request,
_("The source image file could not be found. Please change the source or delete the image."
).format(image.title),
buttons=[
messages.button(
reverse('wagtailimages:delete', args=(image.id, )),
_('Delete'))
])
try:
filesize = image.get_file_size()
except SourceImageIOError:
filesize = None
return render(
request, "wagtailimages/images/edit.html", {
'image':
image,
'form':
form,
'url_generator_enabled':
url_generator_enabled,
'filesize':
filesize,
'user_can_delete':
permission_policy.user_has_permission_for_instance(
request.user, 'delete', image),
})
def is_editable_by_user(self, user):
from wagtail.images.permissions import permission_policy
return permission_policy.user_has_permission_for_instance(user, 'change', self)
def edit(request, image_id):
Image = get_image_model()
ImageForm = get_image_form(Image)
image = get_object_or_404(Image, id=image_id)
if not permission_policy.user_has_permission_for_instance(
request.user, "change", image):
raise PermissionDenied
next_url = get_valid_next_url_from_request(request)
if request.method == "POST":
original_file = image.file
form = ImageForm(request.POST,
request.FILES,
instance=image,
user=request.user)
if form.is_valid():
if "file" in form.changed_data:
# Set new image file size
image.file_size = image.file.size
# Set new image file hash
image.file.seek(0)
image._set_file_hash(image.file.read())
image.file.seek(0)
form.save()
if "file" in form.changed_data:
# if providing a new image file, delete the old one and all renditions.
# NB Doing this via original_file.delete() clears the file field,
# which definitely isn't what we want...
original_file.storage.delete(original_file.name)
image.renditions.all().delete()
# Reindex the image to make sure all tags are indexed
search_index.insert_or_update_object(image)
edit_url = reverse("wagtailimages:edit", args=(image.id, ))
redirect_url = "wagtailimages:index"
if next_url:
edit_url = f"{edit_url}?{urlencode({'next': next_url})}"
redirect_url = next_url
messages.success(
request,
_("Image '{0}' updated.").format(image.title),
buttons=[messages.button(edit_url, _("Edit again"))],
)
return redirect(redirect_url)
else:
messages.error(request,
_("The image could not be saved due to errors."))
else:
form = ImageForm(instance=image, user=request.user)
# Check if we should enable the frontend url generator
try:
reverse("wagtailimages_serve", args=("foo", "1", "bar"))
url_generator_enabled = True
except NoReverseMatch:
url_generator_enabled = False
if image.is_stored_locally():
# Give error if image file doesn't exist
if not os.path.isfile(image.file.path):
messages.error(
request,
_("The source image file could not be found. Please change the source or delete the image."
).format(image.title),
buttons=[
messages.button(
reverse("wagtailimages:delete", args=(image.id, )),
_("Delete"))
],
)
try:
filesize = image.get_file_size()
except SourceImageIOError:
filesize = None
return TemplateResponse(
request,
"wagtailimages/images/edit.html",
{
"image":
image,
"form":
form,
"url_generator_enabled":
url_generator_enabled,
"filesize":
filesize,
"user_can_delete":
permission_policy.user_has_permission_for_instance(
request.user, "delete", image),
"next":
next_url,
},
)
def edit(request, image_id):
Image = get_image_model()
ImageForm = get_image_form(Image)
image = get_object_or_404(Image, id=image_id)
if not permission_policy.user_has_permission_for_instance(request.user, 'change', image):
return permission_denied(request)
if request.method == 'POST':
original_file = image.file
form = ImageForm(request.POST, request.FILES, instance=image, user=request.user)
if form.is_valid():
if 'file' in form.changed_data:
# Set new image file size
image.file_size = image.file.size
form.save()
if 'file' in form.changed_data:
# if providing a new image file, delete the old one and all renditions.
# NB Doing this via original_file.delete() clears the file field,
# which definitely isn't what we want...
original_file.storage.delete(original_file.name)
image.renditions.all().delete()
# Reindex the image to make sure all tags are indexed
search_index.insert_or_update_object(image)
messages.success(request, _("Image '{0}' updated.").format(image.title), buttons=[
messages.button(reverse('wagtailimages:edit', args=(image.id,)), _('Edit again'))
])
return redirect('wagtailimages:index')
else:
messages.error(request, _("The image could not be saved due to errors."))
else:
form = ImageForm(instance=image, user=request.user)
# Check if we should enable the frontend url generator
try:
reverse('wagtailimages_serve', args=('foo', '1', 'bar'))
url_generator_enabled = True
except NoReverseMatch:
url_generator_enabled = False
if image.is_stored_locally():
# Give error if image file doesn't exist
if not os.path.isfile(image.file.path):
messages.error(request, _(
"The source image file could not be found. Please change the source or delete the image."
).format(image.title), buttons=[
messages.button(reverse('wagtailimages:delete', args=(image.id,)), _('Delete'))
])
return render(request, "wagtailimages/images/edit.html", {
'image': image,
'form': form,
'url_generator_enabled': url_generator_enabled,
'filesize': image.get_file_size(),
'user_can_delete': permission_policy.user_has_permission_for_instance(
request.user, 'delete', image
),
})
def edit(request, image_id):
Image = get_image_model()
ImageForm = get_image_form(Image)
image = get_object_or_404(Image, id=image_id)
if not permission_policy.user_has_permission_for_instance(
request.user, "change", image
):
raise PermissionDenied
next_url = get_valid_next_url_from_request(request)
if request.method == "POST":
form = ImageForm(request.POST, request.FILES, instance=image, user=request.user)
if form.is_valid():
form.save()
edit_url = reverse("wagtailimages:edit", args=(image.id,))
redirect_url = "wagtailimages:index"
if next_url:
edit_url = f"{edit_url}?{urlencode({'next': next_url})}"
redirect_url = next_url
messages.success(
request,
_("Image '{0}' updated.").format(image.title),
buttons=[messages.button(edit_url, _("Edit again"))],
)
return redirect(redirect_url)
else:
messages.error(request, _("The image could not be saved due to errors."))
else:
form = ImageForm(instance=image, user=request.user)
# Check if we should enable the frontend url generator
try:
reverse("wagtailimages_serve", args=("foo", "1", "bar"))
url_generator_enabled = True
except NoReverseMatch:
url_generator_enabled = False
if image.is_stored_locally():
# Give error if image file doesn't exist
if not os.path.isfile(image.file.path):
messages.error(
request,
_(
"The source image file could not be found. Please change the source or delete the image."
).format(image.title),
buttons=[
messages.button(
reverse("wagtailimages:delete", args=(image.id,)), _("Delete")
)
],
)
try:
filesize = image.get_file_size()
except SourceImageIOError:
filesize = None
return TemplateResponse(
request,
"wagtailimages/images/edit.html",
{
"image": image,
"form": form,
"url_generator_enabled": url_generator_enabled,
"filesize": filesize,
"user_can_delete": permission_policy.user_has_permission_for_instance(
request.user, "delete", image
),
"next": next_url,
},
)
