def _process(self):
title = f'{self.template.title} (copy)'
new_template = DesignerTemplate(title=title,
type=self.template.type,
**self.target_dict)
data = deepcopy(self.template.data)
image_items = [
item for item in data['items'] if item['type'] == 'fixed_image'
]
for image_item in image_items:
old_image = DesignerImageFile.get(image_item['image_id'])
new_image = DesignerImageFile(filename=old_image.filename,
content_type=old_image.content_type,
template=new_template)
with old_image.open() as f:
new_image.save(f)
image_item['image_id'] = new_image.id
new_template.data = data
if self.template.background_image:
background = self.template.background_image
new_background = DesignerImageFile(
filename=background.filename,
content_type=background.content_type,
template=new_template)
with background.open() as f:
new_background.save(f)
else:
new_background = None
new_template.background_image = new_background
flash(
_("Created copy of template '{}'").format(self.template.title),
'success')
return jsonify_data(
html=_render_template_list(self.target, event=self.event_or_none))
def render(cls, item):
buf = DesignerImageFile.get(item['image_id']).open()
return Image.open(buf)