Flask-Securityを使用したフォームは未定義です

Question

ログインフォーム用のカスタムテンプレートでFlask-Securityを使用しています。私は自分のフォームを定義していますが、何らかの理由でフォームがテンプレートに渡されていません。ここで

は、私が行を削除する場合

@mod_auth.route('/signin/', methods=['GET', 'POST']) 
def signin(): 
    # If sign in form is submitted 
    form = LoginForm(request.form) 
    # Verify the sign in form 
    if form.validate_on_submit(): 
     for user in User.objects(email=form.email.data): 
      if user and user.password == form.password.data: 
       login_user(user) 
      if not is_safe_url(next): 
       flash('Logging you in') 
       return flask.abort(400) 
      return redirect(next or ('/') 
     elif user: 
      flash('Wrong password') 
     else: 
      flash('could not find username') 
    return render_template("security/login_user.html", form=form) 

コードが動作するログイン用のコードテンプレートコードここ

<form method="POST" action="." accept-charset="UTF-8" role="form"> 
    {{ form.csrf_token }} {{ render_field(form.email, placeholder="Your Email Address", autofocus="") }} {{ render_field(form.password, placeholder="Password") }} 
     <div> 
      <label> 
         <input type="checkbox" name="remember" value="1"> Remember Me 
        </label> 
         <a role="button" href="">Forgot your password?</a><span class="clearfix"></span> 
     </div> 
        <button type="submit" name="submit">Sign in</button>   
</form> 

フォームコードここ

class LoginForm(FlaskForm): 
    email = TextField('Email Address', [ 
      Required(message='Forgot your email address?')]) 
    password = PasswordField('Password', [ 
      Required(message='Must provide a password. ;-)')]) 

されています設定内

app.config['SECURITY_LOGIN_URL'] = '/auth/signin/' 

しかし、その行があった場合、それは

Traceback (most recent call last): 
File "/usr/lib/python3.6/site-packages/flask/app.py", line 1997, in __call__ 
return self.wsgi_app(environ, start_response) 
File "/usr/lib/python3.6/site-packages/flask/app.py", line 1985, in wsgi_app 
response = self.handle_exception(e) 
File "/usr/lib/python3.6/site-packages/flask/app.py", line 1540, in handle_exception 
reraise(exc_type, exc_value, tb) 
File "/usr/lib/python3.6/site-packages/flask/_compat.py", line 33, in reraise 
raise value 
File "/usr/lib/python3.6/site-packages/flask/app.py", line 1982, in wsgi_app 
response = self.full_dispatch_request() 
File "/usr/lib/python3.6/site-packages/flask/app.py", line 1614, in full_dispatch_request 
rv = self.handle_user_exception(e) 
File "/usr/lib/python3.6/site-packages/flask/app.py", line 1517, in handle_user_exception 
reraise(exc_type, exc_value, tb) 
File "/usr/lib/python3.6/site-packages/flask/_compat.py", line 33, in reraise 
raise value 
File "/usr/lib/python3.6/site-packages/flask/app.py", line 1612, in full_dispatch_request 
rv = self.dispatch_request() 
File "/usr/lib/python3.6/site-packages/flask/app.py", line 1598, in dispatch_request 
return self.view_functions[rule.endpoint](**req.view_args) 
File "/usr/lib/python3.6/site-packages/flask_security/decorators.py", line 230, in wrapper 
return f(*args, **kwargs) 
File "/usr/lib/python3.6/site-packages/flask_security/views.py", line 89, in login 
**_ctx('login')) 
File "/usr/lib/python3.6/site-packages/flask_security/core.py", line 528, in render_template 
return render_template(*args, **kwargs) 
File "/usr/lib/python3.6/site-packages/flask/templating.py", line 134, in render_template 
context, ctx.app) 
File "/usr/lib/python3.6/site-packages/flask/templating.py", line 116, in _render 
rv = template.render(context) 
File "/usr/lib/python3.6/site-packages/jinja2/asyncsupport.py", line 76, in render 
return original_render(self, *args, **kwargs) 
File "/usr/lib/python3.6/site-packages/jinja2/environment.py", line 1008, in render 
return self.environment.handle_exception(exc_info, True) 
File "/usr/lib/python3.6/site-packages/jinja2/environment.py", line 780, in handle_exception 
reraise(exc_type, exc_value, tb) 
File "/usr/lib/python3.6/site-packages/jinja2/_compat.py", line 37, in reraise 
raise value.with_traceback(tb) 
File "/home/kenton/Programming/bridal/bridal-website/becomeOne/app/templates/security/login_user.html", line 1, in top-level template code 
{% extends "base.html" %} {% block content %} 
File "/home/kenton/Programming/bridal/bridal-website/becomeOne/app/templates/base.html", line 1, in top-level template code 
{% block doc -%} 
File "/home/kenton/Programming/bridal/bridal-website/becomeOne/app/templates/base.html", line 4, in block "doc" 
{%- block html %} 
File "/home/kenton/Programming/bridal/bridal-website/becomeOne/app/templates/base.html", line 43, in block "html" 
{% block body -%} 
File "/home/kenton/Programming/bridal/bridal-website/becomeOne/app/templates/base.html", line 48, in block "body" 
{% block content -%} {%- endblock content %} {% block scripts %} 
File "/home/kenton/Programming/bridal/bridal-website/becomeOne/app/templates/security/login_user.html", line 22, in block "content" 
{% endif %} {% endwith %} {% if form.errors %} 
File "/usr/lib/python3.6/site-packages/jinja2/environment.py", line 430, in getattr 
return getattr(obj, attribute) 
jinja2.exceptions.UndefinedError: 'form' is undefined 

このエラーがスローされます任意の考えや、まったく助けには素晴らしいことです！ ありがとうございます。

Answer 1

Jinja2のエラーを投げている。

jinja2.exceptions.UndefinedError: 'form' is undefined 

テンプレートコードは、上記のことはabout.Youがそれを使用するテンプレートに供給されていないかを知らないformを使用します。あなたはそれを使用するテンプレートのためにformを渡す必要があります。