def __get_asset_count(album, media_type):
PHAsset = ObjCClass("PHAsset")
NSPredicate = ObjCClass("NSPredicate")
PHFetchOptions = ObjCClass("PHFetchOptions")
fetchOptions = PHFetchOptions.alloc().init().autorelease()
fetchOptions.predicate = NSPredicate.predicateWithFormat_("mediaType==" +
str(media_type))
assets = PHAsset.fetchAssetsInAssetCollection_options_(album, fetchOptions)
return assets.count()
def __get_album_dates(album):
PHAsset = ObjCClass("PHAsset")
NSSortDescriptor = ObjCClass("NSSortDescriptor")
PHFetchOptions = ObjCClass("PHFetchOptions")
fetchOptions = PHFetchOptions.alloc().init().autorelease()
fetchOptions.sortDescriptors = [
NSSortDescriptor.sortDescriptorWithKey_ascending_(
"creationDate", True)
]
result = PHAsset.fetchAssetsInAssetCollection_options_(album, fetchOptions)
if result.count() != 0:
start_date = result.firstObject().creationDate()
end_date = result.lastObject().creationDate()
return (start_date, end_date)
else:
return (None, None)
