Python + Flask + Bootstarp 生成分析图表

直接上代码：view.py

#-------------------------------------
1 user_question_data = []
2     for u in users:
3         color=COLOR_LIB[random.randint(0,(len(COLOR_LIB))-1)]
4         u.question_num = db_session.query(Question).filter(Question.user_id==u.id).count()
5         user_question_data.append({"value":u.question_num,"color":color, "label":u.username})
6     print(json.dumps(user_question_data))
7     #print(jsonify(json.dumps(user_question_data)))
8     return render_template(‘m_analysis.html‘,u_q_data=repr(user_question_data))

<script src="/static/js/Chart.min.js"></script>
 <script>
 var uqdata = {{u_q_data|safe}};
    window.onload = function() {
        var ctx_pie = document.getElementById("uqchart").getContext("2d");
        window.myPieChart = new Chart(ctx_pie).Pie(uqdata, {
            responsive : true
        });
    }
 </script>

<canvas id="uqchart"></canvas>