python - saving search results as text instead of list -

i using django 1.8 , working on blog application. when search tweets( name instead of posts) , want save search results obtained after querying database, text instead of list. view function below:

def search(request):     query = request.get.get('q','')     if query:         qset = (             q(text__icontains=query)              #q(hashes__icontains=query)             #q(artist__icontains=query)         )         results = tweet.objects.filter(qset).distinct()      else:         results = []     number_of_results = len(results)      search_item = query     returned_items = []     res in results:         text = res.text         returned_items.append(text)      returns = returned_items[:]      search = search(search_item=search_item,returns=returns)     search.save()      context =    {'query':query,'results':results,'number_of_results':number_of_results,'title':'search results '+request.get.get('q','')}     return render_to_response("tweets/search.html",context,context_instance=requestcontext(request)) 

also, snapshot of search table in database shown below:

please me out friends.

you should join returned list using comma separted values. return string.

returns = ', '.join(returned_items)