从 python 烧瓶中的选择标签传递选定的选项值答案

【问题标题】：Pass selected option value from select tag in python flask从 python 烧瓶中的选择标签传递选定的选项值
【发布时间】：2023-03-20 15:03:01
【问题描述】：

我有一个带有选择标签的用户注册表单。我希望将所选选项中的值分配给变量（代码如下所示）。

registration.html

<form method="POST" action="/register">
            <div class="form-group">
                {{render_field(form.name, class_="form-control", placeholder="Name")}}
            </div>
            <div class="form-group">
                {{render_field(form.email, class_="form-control",placeholder="Email")}}
            </div>
            <div class="form-group">
                {{render_field(form.username, class_="form-control", placeholder="Username")}}
            </div>
            <div class="form-group">
                {{render_field(form.password, class_="form-control", placeholder="Password")}}
            </div>
            <div class="form-group">
                {{render_field(form.confirm, class_="form-control", placeholder="Re-enter Password")}}
            </div>
             <div class="form-group">
                 <p>I prefer to : </p>
                 <select id= "studenttype" name="studenttype">
                    <input type="radio" name="Theorist" value="Theorist"><span>Read lecture notes</span><br/>
                    <input type="radio" name="Theorist" value="Activist"><span>Watch videos</span>
                 </select>
             </div>
            <input type="submit" class="btn btn-success" value="Submit">
            <p>Register as <a href="/register_instructor">Instructor</a> </p>
        </form>

我已使用以下代码将选定的选项值分配给变量learning_style。

app.py

@app.route('/register', methods=['GET', 'POST'])
def register():
    learning_style = request.form.get("studenttype")
    form = RegisterForm(request.form)
    if request.method == "POST" and form.validate():
        name = form.name.data
        email = form.email.data
        username = form.username.data
        password = form.password.data
        user_type = 'student'
        print(learning_style)

        ...........

        flash('You are now registered', 'success')
        redirect(url_for('index'))
    return render_template('register.html', form=form)

但这似乎不起作用。任何帮助深表感谢。谢谢。

【问题讨论】：

标签： python html flask flask-wtforms

【解决方案1】：

您正在混合单选按钮并选择下拉菜单。

在您的模板中更改：

                  <select id= "studenttype" name="studenttype">
                    <input type="radio" name="Theorist" value="Theorist"><span>Read lecture notes</span><br/>
                    <input type="radio" name="Theorist" value="Activist"><span>Watch videos</span>
                  </select>

到：

                    <input type="radio" name="Theorist" value="Theorist"><span>Read lecture notes</span><br/>
                    <input type="radio" name="Theorist" value="Activist"><span>Watch videos</span>

在您的应用中：

learning_style = request.form.get("Theorist")

【讨论】：