def handle_uploaded_image(request,
display_obj,
model_name,
image_type,
current_image=None):
''' process the uploaded file and generate ImageRevision '''
try:
form = UploadImageForm(request.POST, request.FILES)
except IOError: # sometimes uploads misbehave. connection dropped ?
error_text = 'Something went wrong with the upload. ' + \
'Please <a href="' + request.path + '">try again</a>.'
return render_error(request, error_text, redirect=False, is_safe=True)
if not form.is_valid():
return _display_image_upload_form(request, form, display_obj,
model_name, image_type)
# process form
image = form.cleaned_data['image']
if current_image:
revision_lock = _get_revision_lock(current_image)
if not revision_lock:
return render_error(
request, 'Cannot replace %s as it is already reserved.' %
current_image.description())
# create OI records
changeset = Changeset(indexer=request.user,
state=states.OPEN,
change_type=CTYPES['image'])
changeset.save()
if current_image:
revision_lock.changeset = changeset
revision_lock.save()
revision = ImageRevision(
changeset=changeset,
content_type=ContentType.objects.get_for_model(display_obj),
object_id=display_obj.id,
type=ImageType.objects.get(name=image_type),
marked=form.cleaned_data['marked'])
if current_image:
revision.image = current_image
revision.is_replacement = True
revision.previous_revision = current_image.revisions.get(
next_revision=None,
changeset__state=states.APPROVED,
committed=True)
revision.save()
revision.image_file.save(str(revision.id) + '.jpg', content=File(image))
revision.changeset.submit(form.cleaned_data['comments'])
return HttpResponseRedirect(urlresolvers.reverse('editing'))
def handle_uploaded_image(request, display_obj, model_name, image_type,
current_image=None):
''' process the uploaded file and generate ImageRevision '''
try:
form = UploadImageForm(request.POST, request.FILES)
except IOError: # sometimes uploads misbehave. connection dropped ?
error_text = 'Something went wrong with the upload. ' + \
'Please <a href="' + request.path + '">try again</a>.'
return render_error(request, error_text, redirect=False, is_safe=True)
if not form.is_valid():
return _display_image_upload_form(request, form, display_obj,
model_name, image_type)
# process form
image = form.cleaned_data['image']
if current_image:
revision_lock = _get_revision_lock(current_image)
if not revision_lock:
return render_error(
request,
u'Cannot replace %s as it is already reserved.' %
current_image.description())
# create OI records
changeset = Changeset(indexer=request.user, state=states.OPEN,
change_type=CTYPES['image'])
changeset.save()
if current_image:
revision_lock.changeset = changeset
revision_lock.save()
revision = ImageRevision(
changeset=changeset,
content_type=ContentType.objects.get_for_model(display_obj),
object_id=display_obj.id, type=ImageType.objects.get(name=image_type),
marked=form.cleaned_data['marked'])
if current_image:
revision.image = current_image
revision.is_replacement = True
revision.previous_revision = current_image.revisions.get(
next_revision=None,
changeset__state=states.APPROVED,
committed=True)
revision.save()
revision.image_file.save(str(revision.id) + '.jpg', content=File(image))
revision.changeset.submit(form.cleaned_data['comments'])
return HttpResponseRedirect(urlresolvers.reverse('editing'))
def upload_image(request, model_name, id, image_type, image=None):
from apps.oi.views import DISPLAY_CLASSES, REVISION_CLASSES
"""
Handles uploading of supporting images
"""
display_obj = get_object_or_404(DISPLAY_CLASSES[model_name], id=id,
deleted=False)
kwargs = None
# replacement
if image:
if image.object != display_obj:
return render_error(request,
'Image and object id do not match.',
redirect=False, is_safe=True)
kwargs = {'upload_type': 'replacement', 'current_image': image,
'current_image_tag': get_generic_image_tag(image, 'current image')}
# check if there is an image if image_type.unique is set
else:
img_type = get_object_or_404(ImageType, name=image_type)
if img_type.unique:
if Image.objects.filter(content_type=\
ContentType.objects.get_for_model(display_obj),
object_id=display_obj.id, type=img_type, deleted=False).count():
return render_error(request,
('%s has an image. Further images cannot be added, '
'only replaced.') % (esc(display_obj)),
redirect=False, is_safe=True)
# check if there is a pending object deletion
filter_dict = {model_name : display_obj, 'deleted' : True,
'changeset__state__in' : states.ACTIVE}
revision = REVISION_CLASSES[model_name].objects.filter(**filter_dict)
if revision:
revision = revision.get()
return render_error(request,
('%s is <a href="%s">pending deletion</a>. Images '
'cannot be added or modified.') % (esc(display_obj),
urlresolvers.reverse('compare', kwargs={'id': revision.changeset.id})),
redirect=False, is_safe=True)
# current request is an upload
if request.method == 'POST':
if image:
return handle_uploaded_image(request, display_obj, model_name,
image_type, current_image=image)
else:
return handle_uploaded_image(request, display_obj, model_name,
image_type)
# request is a GET for the form
else:
form = UploadImageForm()
# display the form
return _display_image_upload_form(request, form, display_obj,
model_name, image_type, kwargs=kwargs)
