This is how i do it using generator. Its better because it doesn't load the
whole file into memory.
class DownloadFile(app.page):
path="/(users|tenders)/(\d+)/files/(\d+)"
def GET(self, obj_type, obj_id, file_id):
doc = db.select("files", locals(), where="id=$file_id and
obj_type=$obj_type and obj_id=$obj_id", limit=1)[0]
web.header("Content-Disposition", "attachment; filename=%s" %
doc.filename)
web.header("Content-Type", doc.filetype)
web.header('Transfer-Encoding','chunked')
f = open(os.path.join(config.upload_dir, doc.path, doc.filename),
'rb')
while 1:
buf = f.read(1024 * 8)
if not buf:
break
yield buf
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