python - How to store an image as a Bytes field in cassandra database using cql engine? -

i want store website images in cassandra database! must read , store bytes of image. have nice code me? i'm using python2.7, django framework , cql-engine!

this code:

1- model:

from cqlengine import columns cqlengine.models import model  class userimage(model):     email = columns.text(primary_key=true)     image=columns.bytes(required=false) 

2- form:

class userimage(forms.form):     image=forms.imagefield() 

3- view:

from mainapp.models import userimage userimagemodel mainapp.forms import usersforms  django.http import httpresponse cqlengine import connection pil import image  def uploadimage(request):     if request.method == 'post':         form = usersforms.userimage(request.post, request.files)         if form.is_valid():             try:                 image_data=image.open(request.files['image'])             except ioerror:                 return httpresponse("cannot upload %s"% request.files['image'].name)             connection.setup(['127.0.0.1:9160'])             userimagemodel.create(email='ebrahimi.omid69@gmail.com', image=image_data)             return httpresponse('stored successfully!')     else:         form= usersforms.userimage()         return render_to_response('users/uploadimage.html', {'form': form}, context_instance=requestcontext(request)) 

my template:

{% block content %}     <form enctype="multipart/form-data" method="post" action="">     {% csrf_token %}     {{ form.as_p }}     <button type="submit">upload</button>     </form> {% endblock %} 

my error in rendered template:

attributeerror @ /uploadimage encode request method: post request url:    http://127.0.0.1:8000/uploadimage django version: 1.5.1 exception type: attributeerror exception value:    encode 

what idea? please guide me...

if @ exception message getting, says attributeerror: encode. telling somewhere in code path, looking attribute (or method) called "encode" on object , not finding it.

i suspect not passing right duck-typed object cqlengine userimage.image. know how speak pil image objects? doubt it. bet cqlengine looking typical python string method .encode (http://docs.python.org/2/library/stdtypes.html#str.encode). instead of passing pil image, try passing raw bytes receive form posting.