WTForms/flaskforms 无法通过提交按钮正确检索数据

Question

所以我只是想让提交按钮正常工作。正常工作意味着将用户输入的电子邮件和密码定向到我的登录名。

目前，它只重定向到 index.html，但我希望它的结果是重定向到配置文件或错误。

这是 python 部分：

@app.route("/login", methods=["GET", "POST"])

定义登录（）：

"""Log user in if credentials provided are correct."""

form = LoginForm(request.post)

# this is if its POST
if form.validate and request.method == 'POST':
    email = request.form['email']
    password = request.form['password']

    if email == admin@gmail.com" and password == "admin":
        return redirect(url_for('/home'))
    else:
        return redirect(url_for('/error'))
# this is if its GET
#return render_template("index.html", form=form)

这是登录表单

class LoginForm(FlaskForm):

email = StringField('email', validators=[InputRequired()])
password = PasswordField('password', validators=[InputRequired()])
remember = BooleanField('remember me')

这是 html 部分：

<div class="modal-body">
                <form role="form">
                    <div class="form-group">
                        <div class="input-group">

                            <form method="POST" action="{{ url_for('login')}}">
                                {{ form.csrf }}
                               <dl style="width: 100%;">
                                    <div class="form-group">
                                        <form role="form">
                                            <div class="form-group">
                                                <div class="input-group">
                                                    {{ wtf.form_field(form.email) }}
                                                    {{ wtf.form_field(form.password) }}
                                                </div>
                                            </div> <!-- /.form-group -->
                                        </form>
                                    </div> <!-- /.form-group -->

                                    <div style="margin-left: 70%;" class="checkbox">
                                        {{ wtf.form_field(form.remember) }}
                                    </div>

                                    <div class="modal-footer">
                                       <input class="btn btn-lg btn-primary btn-block" style="background-color: #3eb2a0;border-color: #3eb2a0;" type="submit" value="Sign In">
                                    </div>
                                </dl>
                            </form>

                        </div>
                    </div>
                </form>
            </div>

Answer 1

我在您的代码中看到的唯一问题是：

if email == admin@gmail.com" and password == "admin":
    return redirect(url_for('/home'))

admin@前没有引号gmail.com

两个：

return redirect(url_for('/home'))

正斜杠有原因吗？你试过了吗'home'

编辑：

这是我如何设置与您的相似的视图的示例

@bp.route('/upvote', methods=['GET', 'POST'])
def view():

form = key()


if form.validate_on_submit():
    received_key = form.key_code.data
    url = form.url.data
    username = form.username.data

    return redirect(url_for('views.success')) #views is the name of the blueprint the success route is in


return render_template('upvote.html', title='title here', form=form)

form.validate_on_submit(): 取代 form.validate 和 form.submit。data/if response.method ='POST'

然后您可以通过 form.variable.data 检索存储在表单中的数据。

检查一下您是否从表单中接收到数据。似乎它可能没有收到 post 请求并跳过你的 "if request.method = 'POST'" 语句下的所有内容。

您的视图如下所示：

@app.route("/login", methods=["GET", "POST"])

def login()
form = LoginForm()

# this is if its POST
if form.validate_on_submit():
    email = form.email.data
    password = form.password.data

    if email == "admin@gmail.com" and password == "admin":
        return redirect(url_for('home'))
    else:
        return redirect(url_for('error'))


#return render_template("index.html", form=form)

WTForms/flaskforms 无法通过提交按钮正确检索数据

WTForms/flaskforms not retrieving data properly via submit button

python

html

flask

wtforms

login-page