[Flask] Unable to set current_user.authenticated to True

Mon Jul 1 13:03:04 EDT 2019

I think you mean to set it as `current_user.is_authenticated = True`.

On 7/1/19 6:14 PM, Abdul Mohammed wrote:
> Hello everyone,
>                   I am trying to toggle between "Sign in" and "Sign 
> out" links using the current_user.is_authenticated variable such that 
> when it returns False, the "Sign in" is displayed and when True the 
> "Sign out" link is displayed. At some point in the login code I set 
> current_user.authenticated = True. The thing is that by the I am 
> successfully logged in and presented with the next view, it is the 
> "Sign in" link that is still displayed. When I check 
> current_user.is_authenticated, it returns False, even though I had 
> explicitly set it to True. Please can anyone point out what I am might 
> be doing wrong? Here is my code:
>
> I have a base.html file that contains the "Sign in" and "Sign out" 
> links that is extended by the other templates:
>
> <ul class="nav navbar-nav navbar-right">
>    {% if (current_user.is_authenticated) %}
>    <li><a href="{{ url_for('logout') }}">Sign Out</a></li>
>    {% else %}
>    <li><a href="{{ url_for('index') }}">Sign In</a></li>
>    {% endif %}
> </ul>
>
> <body>
> {% block page_content %}{% endblock %}
> </body>
>
>
>  When the app first loads in the browser it displays a login form, 
> login.html:
>
>  {% extends "base.html" %}
>
> {% block content %}
>     {% import "bootstrap/wtf.html" as wtf %}
>     {% block title %}Flasky - Login{% endblock %}
>     {% block page_content %}
>     <div class="page-header">
>         <h1>Login</h1>
>     </div>
>     <div class="col-md-4">
>         {{ wtf.quick_form(form) }}
>     </div>
>     {% endblock %}
> {% endblock %}
>
> When a user logs in, it loads a template dashboard.html that displays 
> a map. The top part looks like this:
>
> {% extends "base.html" %}
>
> {% block page_content %}
> <html>
>  <head>
>    <title>Lagos Map</title>
>    <link rel="stylesheet" 
> href="https://unpkg.com/leaflet@1.1.0/dist/leaflet.css"
> integrity="sha512-wcw6ts8Anuw10Mzh9Ytw4pylW8+NAD4ch3lqm9lzAsTxg0GFeJgoAtxuCLREZSC5lUXdVyo/7yfsqFjQ4S+aKw=="
>    crossorigin=""/>
>    <script src="https://unpkg.com/leaflet@1.1.0/dist/leaflet.js"
> integrity="sha512-mNqn2Wg7tSToJhvHcqfzLMU6J4mkOImSPTxVZAdo+lcPlk+GhZmYgACEe0x35K7YzW1zJ7XyJV/TT1MrdXvMcA=="
>    crossorigin=""></script>
>    <script 
> src="https://rawgit.com/k4r573n/leaflet-control-osm-geocoder/master/Control.OSMGeocoder.js"></script>
>    <link rel="stylesheet" 
> href="https://rawgit.com/k4r573n/leaflet-control-osm-geocoder/master/Control.OSMGeocoder.css" 
> />
>    <link rel="stylesheet" 
> href="https://cdnjs.cloudflare.com/ajax/libs/leaflet-routing-machine/3.2.5/leaflet-routing-machine.css" 
> />
>    <script 
> src="https://cdnjs.cloudflare.com/ajax/libs/leaflet-routing-machine/3.2.5/leaflet-routing-machine.js"></script>
>    <script 
> src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.2.1/jquery.js"></script>
>   ...
>   ...
>
> And these are the relevant routes:
>
> @app.route('/',methods=['GET','POST'])
> def index():
>       form = LoginForm()
>       if form.validate_on_submit():
>           user = User.query.filter_by(email=form.email.data).first()
>           if user is not None and user.check_password(form.password.data):
>               user.authenticated = True
>               current_user = user
>               db.session.add(current_user)
>               db.session.commit()
>               login_user(current_user, form.remember_me.data)
>               return redirect(request.args.get('next') or 
> url_for('dashboard'))
>           flash('Invalid username or password.')
>        return render_template('auth/login.html', form=form)
>
> @app.route('/dashboard')
> def dashboard():
>       return render_template("dashboard.html")
>
> Thank you for your time.
>
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-- 
-- Kind regards,
Leni Kadali Mutungi