so, i've figured out that the entire blob stream is not being fully
retrieved, only 29 of the 5513 bytes are being retrieved:
in my debugging: here is an experimental / expanded of the above function:::
table, id, field, stream, and d are all working. but the d[field] under
stream.write(d[field]) seems to only retrieve 29 bytes of the 5513 total
bytes, as verified by the binary file write i have below.
def getbinary():
table = db[request.args[0]]
id = int(request.args[1])
field = table[request.args[2]]
try:
stream = StringIO()
d = db(table.id==id).select(field).first()
stream.write(d[field])
except:
return CAT('exception getbinary():', BR(), 'table:', table,
type(table), BR(), 'id:', id, type(id), BR(), 'field:', field, type(field))
#data = base64.b64decode(data)
#data = data.decode('base64')
f = open('/opt/web-apps/web2py/applications/tms/out1.png', 'wb')
f.write(stream.getvalue())
f.close()
return CAT(type(stream), BR(), stream)
response.headers['Content-Type'] = 'image/png'
return response.write(data, escape=False)
--
Resources:
- http://web2py.com
- http://web2py.com/book (Documentation)
- http://github.com/web2py/web2py (Source code)
- https://code.google.com/p/web2py/issues/list (Report Issues)
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