Show a message if there is or not a private kay in the user session

See #1033
 - Legacy-Id: 5713

ietf/nomcom/views.py

@@ -44,6 +44,11 @@ def index(request, year):
 @member_required(role='member')
 def private_key(request, year):
     nomcom = get_nomcom_by_year(year)
+    message = None
+    if request.session.get('NOMCOM_PRIVATE_KEY_%s' % year, None):
+        message = ('warning', 'Alredy there is a private key in your session')
+    else:
+        message = ('warning', "There isn't a private key in your session yet")
 
     back_url = request.GET.get('back_to', reverse('nomcom_private_index', None, args=(year, )))
     if request.method == 'POST':
@@ -58,6 +63,7 @@ def private_key(request, year):
                                'year': year,
                                'back_url': back_url,
                                'form': form,
+                               'message': message,
                                'selected': 'private_key'}, RequestContext(request))
 
 

ietf/templates/nomcom/private_key.html

@@ -5,6 +5,11 @@
 {% block nomcom_content %}
 <h2>Enter private key</h2>
 
+{% if message %}
+<div class="info-message-{{ message.0 }}">{{ message.1 }}</div>
+{% endif %}
+
+
 <p>In order to access the {{ nomcom.group }} data you have to enter your private key. Please paste it in the text area below. The key must be in the following format:</p>
 
 <pre>