django实战（五）--增加数据

urls.py

urlpatterns=[
    path('curd/add/',views.curd_add,name='curdadd'),
    path('curd/saveadd/',views.curd_save_add,name='curdsaveadd'),
]

views.py

def curd_add(request):
    #我们这不对publisher表进行增加，只是增加book表，所以我们的publisher直接获取给前台用
    publisher_obj=Publisher.objects.all()
    content={
        'publisher':publisher_obj,
    }
    return render(request,'curd/add.html',context=content)

def curd_save_add(request):
    #判断是否是POST请求
    if request.method == 'POST':
        title=request.POST.get('title')
        publisher=request.POST.get('publisher')
        introduce=request.POST.get('introduce')
        publisher_obj=Publisher.objects.get(name=publisher)
        #由于publisher表与book是关联关系，因此增加时publisher必须是对象
        Book.objects.create(title=title,introduce=introduce,publisher=publisher_obj)
        return redirect('/curd/')

add.html

<!doctype html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport"
          content="width=device-width, user-scalable=no, initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <link rel="stylesheet" href="/static/bootstrap/css/bootstrap.css">
    <script src="/static/bootstrap/js/bootstrap.js"></script>
    <script type="text/javascript" src="http://libs.baidu.com/jquery/1.11.1/jquery.min.js"></script>
    <script src="/static/js/curd.js"></script>
    <title>Document</title>
</head>
<body>
<div align="center" style="width: 500px;position: absolute;top: 150px;left: 400px;">
    <form method="post" class="form-horizontal" action="{% url 'person:curdsaveadd'%}">
        <div class="form-group">
            <label for="title" class="col-sm-2 control-label">title</label>
            <div class="col-sm-10">
                <input type="text" class="form-control" name="title" id="title" >
            </div>
        </div>
        <div class="form-group">
            <label for="publisher" class="col-sm-2 control-label">publisher</label>
            <div class="col-sm-10">
                <select class="form-control" name="publisher">
                    {% for pub in publisher%}
                    <option  value="{{pub}}" >{{pub}}</option>
                    {% endfor %}
                </select>
            </div>
        </div>
                <div class="form-group">
            <label for="introduce" class="col-sm-2 control-label">introduce</label>
            <div class="col-sm-10">
                <textarea type="text" name="introduce" class="form-control" id="introduce"></textarea>
            </div>
        </div>
        <div class="form-group">
            <div class="col-sm-offset-2 col-sm-10">
                <button type="submit" class="btn btn-default">提交</button>
            </div>
        </div>
    </form>
</div>
</body>
</html>

启动服务器：

点击添加按钮，浏览器地址变为http://127.0.0.1:8000/curd/add/

我们输入相应数据test，北京大学出版社（选择），我是个爱学习的人呀，哈哈哈

我们看到，数据已经插入进去了。

技术总结：就是关联表的插入需要进行对象插入。