def update_book(): pics_array = json.loads(request.form['pics_array']) book_id = request.form['book_id'] for item in pics_array: pic = Picture.query.filter_by(instagram_id = item['id'], book_id = book_id).first() print pic if pic == None: #create a new picture pic = Picture(thumb_url = item['thumb_url'], full_url = item['full_url'], instagram_user = item['instagram_user'], book_id = book_id, order = item['order'], instagram_id = item['id']) else: pic.order = item['order'] db.session.add(pic) db.session.commit() return jsonify({ 'error': 'none' })