[extensions-web] is_authenticated is now a property

[Yuri Konotopov <ykonotopov src gnome org>]

commit 236aef4d34d5852ffdaf2b6ed0e0cf3ad7aad0c3
Author: Claude Paroz <claude 2xlibre net>
Date:   Sat Jan 12 11:20:12 2019 +0100

    is_authenticated is now a property
    
    Closes: https://gitlab.gnome.org/Infrastructure/extensions-web/merge_requests/7
    Signed-off-by: Yuri Konotopov <ykonotopov gnome org>

 sweettooth/auth/context_processors.py | 4 ++--
 sweettooth/errorreports/views.py      | 2 +-
 sweettooth/ratings/models.py          | 2 +-
 3 files changed, 4 insertions(+), 4 deletions(-)
---
diff --git a/sweettooth/auth/context_processors.py b/sweettooth/auth/context_processors.py
index 0b541bf..39e6a64 100644
--- a/sweettooth/auth/context_processors.py
+++ b/sweettooth/auth/context_processors.py
@@ -2,7 +2,7 @@
 from sweettooth.auth import forms
 
 def login_form(request):
-    if request.user.is_authenticated():
-        return dict()
+    if request.user.is_authenticated:
+        return {}
 
     return dict(login_popup_form=forms.InlineAuthenticationForm())
diff --git a/sweettooth/errorreports/views.py b/sweettooth/errorreports/views.py
index 45b55b2..4d35e1b 100644
--- a/sweettooth/errorreports/views.py
+++ b/sweettooth/errorreports/views.py
@@ -20,7 +20,7 @@ def report_error(request, extension):
     if request.method == 'POST':
         form = ErrorReportForm(data=request.POST)
 
-        if not request.user.is_authenticated():
+        if not request.user.is_authenticated:
             return HttpResponseForbidden()
 
         if form.is_valid():
diff --git a/sweettooth/ratings/models.py b/sweettooth/ratings/models.py
index df5dca1..7564281 100644
--- a/sweettooth/ratings/models.py
+++ b/sweettooth/ratings/models.py
@@ -10,6 +10,6 @@ class RatingComment(Comment):
     rating = models.IntegerField(blank=True, default=-1)
 
 def make_sure_user_was_authenticated(sender, comment, request, **kwargs):
-    return request.user.is_authenticated()
+    return request.user.is_authenticated
 
 comment_will_be_posted.connect(make_sure_user_was_authenticated)