Hello,
I've had nothing but problems getting this to work so i'll just
describe what i want to do and maybe someone here could help me out:
1) Get images uploaded via the method describe in the upload with
progressbar tutorial in the rough-docs
2) write image into a StringIO or similar
3) write a copy into the database
4) make a thumbnail via PIL
5) save thumbnail into database
Now so far i've been getting nothing but errors so i think i've been
on the wrong track. Could someone just quickly list what objects to
use in this process is StringIO the way to go? The code is here below.
imageObject is just an Int. I've been getting decoding errors about
character not being in ascii range which i assume is because it tries
to decode the stringIO object, how do i tell it that it contains
binary data?
Thanks a lot
Fabian
def save_file(self, filepath, file, imageObject):
""" Safely save a file to the location given by filepath """
chunk_size = 8192
# return if file is empty
if not file:
return
#read file that is being uploaded into a memory file
# create new file on file system
savedfile = StringIO.StringIO()
# save data to this new file in chunks
while True:
data = file.read(chunk_size)
if not data:
break
savedfile.write(data)
savedfile.seek(0)
#create thumbnail
tempThumb = Image.open(savedfile)
tempThumb = tempThumb.resize((128, 128))
fileOut = StringIO.StringIO()
fileOut.seek(0)
savedfile.seek(0)
tempThumb.save(fileOut, 'PNG')
# create file entry in database
newImage = image(imageName = None,
imageDescription = None,
imagePoints = None,
imageComplete = False,
imageMap = False,
imageMapPoint = False,
imageFile = savedfile.getvalue(),
imageThumb = None,
imageObject = int(imageObject),
imageSpace = None,
imageFormat = 1)
return
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