get_subscription should only return *active* subscription.

app/dashboard/views/billing.py

@@ -8,10 +8,10 @@ from app.dashboard.base import dashboard_bp
 @login_required
 def billing():
     # sanity check: make sure this page is only for user who has paddle subscription
-    if not current_user.is_premium():
-        flash("This page is for paid customer only", "warning")
-        return redirect(url_for("dashboard.index"))
-
     sub = current_user.get_subscription()
 
+    if not sub:
+        flash("You don't have any active subscription", "warning")
+        return redirect(url_for("dashboard.index"))
+
     return render_template("dashboard/billing.html", sub=sub)

app/models.py

@@ -145,11 +145,6 @@ class User(db.Model, ModelMixin, UserMixin):
         """user is premium if they have a active subscription"""
         sub: Subscription = self.get_subscription()
         if sub:
-            if sub.cancelled:
-                # user is premium until the next billing_date + 1
-                return sub.next_bill_date >= arrow.now().shift(days=-1).date()
-
-            # subscription active, ie not cancelled
             return True
 
         return False
@@ -217,8 +212,19 @@ class User(db.Model, ModelMixin, UserMixin):
             return "Free Plan"
 
     def get_subscription(self):
+        """return *active* subscription
+        TODO: support user unsubscribe and re-subscribe
+        """
         sub = Subscription.get_by(user_id=self.id)
-        return sub
+        if sub and sub.cancelled:
+            # sub is active until the next billing_date + 1
+            if sub.next_bill_date >= arrow.now().shift(days=-1).date():
+                return sub
+            else:  # past subscription, user is considered not having a subscription
+                return None
+        else:
+            return sub
+
 
     def verified_custom_domains(self):
         return CustomDomain.query.filter_by(user_id=self.id, verified=True).all()

templates/header.html

@@ -42,7 +42,7 @@
           </a>
 
           <div class="dropdown-menu dropdown-menu-right dropdown-menu-arrow">
-            {% if current_user.is_premium() %}
+            {% if current_user.get_subscription() %}
               <a class="dropdown-item" href="{{ url_for('dashboard.billing') }}">
                 <i class="dropdown-icon fe fe-dollar-sign"></i> Billing
               </a>