add unattend button

templates/index.html

@@ -1,7 +1,7 @@
 {% extends 'base.html' %}
 
 {% block content %}
-    <h1>{% block title %} Hallo, {{user["username"]}} {% endblock %}</h1>
+    <h1>{% block title %} Hallo, {{user["username"]}} ({{user["email"]}}) {% endblock %}</h1>
     {% set ns = namespace(last_date='...') %}      
 
     {% for event in events %}
@@ -12,6 +12,14 @@
                 <h1>{{event["weekday"] + " " + event["start"]["date"] }}</h1>
             {% endif %}
             <h2>{{ event['subject'] }}</h2>
+
+            <a href="{{ url_for('attend', id=event['id']) }}">
+                <span class="badge badge-warning">Teilnehmen</span>
+            </a>
+            <a href="{{ url_for('unattend', id=event['id']) }}">
+                <span class="badge badge-warning">Abmelden</span>
+            </a>
+
             <span class="badge badge-primary">{{ event["start"]["time"] }}</span>
             <span class="badge badge-primary">{{ event["duration"] }}</span>
             {% for attendee in event["attendees"] %}