def get(self, instance, **kwargs):
if not self.use_fstorage(instance):
return ImageField.get(self, instance, **kwargs)
request = instance.REQUEST
if not isinstance(request, type('')) and \
instance.REQUEST.get('%s_migrate' % self.getName(), ''):
# migrate scales
kwargs['migrate'] = True
for n in self.getAvailableSizes(instance).keys():
self.getScale(instance, scale=n, **kwargs)
return ImageField.get(self, instance, **kwargs)
def rescaleOriginal(context, max_size=(1200,900), dry_run=True):
"""
Steps:
* If Image, use own data --or--
* If News Item, use image field --or--
* Use leadImage field
* Determine if it's greater than max dimensions (size)
* If yes, scale it down and reset
"""
if not HAS_PIL:
return False
portal_type = context.portal_type
if portal_type == 'Image':
imageObj = context
imageField = ImageField()
else:
if portal_type == 'News Item':
imageField = context.getField('image')
else:
imageField = context.getField(IMAGE_FIELD_NAME)
imageObj = imageField.get(context)
if not imageObj:
status = False
width = height = 0
new_dimensions = (0,0)
elif imageObj.content_type not in ('image/jpeg', 'image/png', 'image/gif'):
status = False
width = height = 0
new_dimensions = (0,0)
LOG('Products.agCommon.rescaleOriginal', INFO, "Invalid image type %s for %s" % (imageObj.content_type, context.absolute_url()) )
else:
width = imageObj.width
height = imageObj.height
new_dimensions = calculateDimensions(imageObj, max_size=max_size)
if (width, height) > new_dimensions:
if not dry_run:
if isinstance(imageObj.data, str):
imageData = imageObj.data
else:
imageData = imageObj.data.data
(resizedImage, format) = imageField.scale(imageData, *new_dimensions)
if portal_type == 'Image':
context.setImage(resizedImage.read())
else:
imageField.set(context, resizedImage.read())
status = True
else:
status = False
return (status, portal_type, context.absolute_url(), (width, height), new_dimensions)
