Simplify UI in case there is just one topic

When only one topic is available, havign a column to display
topic (or mentioning topic) is a bit confusing. Simplify the
UI so that you can safely ignore this concept if there is only
one topic available.

Change-Id: I69ddef83b586a81df75e04579125681cbe067151

cfp/models.py

@@ -60,7 +60,7 @@ class Proposal(models.Model):
     description = models.TextField(
         help_text="The detailed subject and goals for your proposed session. "
                   "This is mandatory.")
-    topic = models.ForeignKey(Topic,
+    topic = models.ForeignKey(Topic, default=1,
         help_text="The topic the session belongs in. Click 'Help' below"
                   " for more details. This is mandatory.")
     blueprints = models.CharField(max_length=400, blank=True,

cfp/templates/cfplist.html

@@ -13,13 +13,15 @@
 Session suggestion is now closed.
 {% endif %}
 {% for topic in reviewable_topics %}
-<a class=roundedButton href="/cfp/topic/{{ topic.id }}">Review topic: {{ topic.name }}</A>
+<a class=roundedButton href="/cfp/topic/{{ topic.id }}">Review {% if multitopic %}topic: {{ topic.name }}{% else %}proposed sessions{% endif %}</A>
 {% endfor %}
 <table>
 <tr>
+{% if multitopic %}
 <th><a class="nolink"
      href="" onclick="ts_resortTable(this); return false;">Topic<img
      class="sortarrow" src="/media/arrowBlank" height="6" width="9"></a></th>
+{% endif %}
 <th><a class="nolink"
      href="" onclick="ts_resortTable(this); return false;">Title<img
      class="sortarrow" src="/media/arrowBlank" height="6" width="9"></a>
@@ -33,7 +35,9 @@ Session suggestion is now closed.
 </tr>
 {% for proposal in proposals %}
 <tr>
+{% if multitopic %}
 <td>{{ proposal.topic.name }}</td>
+{% endif %}
 <td>
     <a href="/cfp/details/{{ proposal.id }}">{{ proposal.title }}</a>
 </td>

cfp/templates/topiclist.html

@@ -13,7 +13,7 @@
 {% block content %}
 <script type="text/javascript" src="/media/sorting.js"></script>
 <div class="span-8">
-<h2>{{ topic.name }}</h2>
+<h2>{% if multitopic %}{{ topic.name }}{% else %}Review proposed sessions{% endif %}</h2>
 <a class=roundedButton href=/>Back to proposals list</A>
 {% if sched %}
 <a class=roundedButton href="/scheduling/{{ topic.id }}">Scheduling</A>
@@ -22,7 +22,9 @@
 </div>
 <table>
 <tr>
+{% if multitopic %}
 <th>Topic</th>
+{% endif %}
 <th><a class="nolink"
      href="" onclick="ts_resortTable(this); return false;">Title<img
      class="sortarrow" src="/media/arrowBlank" height="6" width="9"></a>
@@ -37,6 +39,7 @@
 </tr>
 {% for proposal in proposals %}
 <tr>
+{% if multitopic %}
 <td>
 {% if proposal.scheduled %}
 {{ proposal.topic.name }}
@@ -44,6 +47,7 @@
 <a href="/cfp/switch/{{ proposal.id }}">{{ proposal.topic.name }}</a>
 {% endif %}
 </td>
+{% endif %}
 <td>
 <a href="/cfp/details/{{ proposal.id }}">{{ proposal.title }}</a>
 </td>

cfp/views.py

@@ -30,17 +30,20 @@ from cfp.utils import linkify, is_editable, topiclead
 
 @login_required
 def list(request):
+    multitopic = Topic.objects.count() > 1
     proposals = Proposal.objects.all()
     reviewable_topics = Topic.objects.filter(
         lead_username=request.user.username)
     request.session['lastlist'] = ""
     return TemplateResponse(request, "cfplist.html",
                             {'proposals': proposals,
+                             'multitopic': multitopic,
                              'reviewable_topics': reviewable_topics})
 
 
 @login_required
 def topiclist(request, topicid):
+    multitopic = Topic.objects.count() > 1
     topic = Topic.objects.get(id=topicid)
     if not topiclead(request.user, topic):
         return HttpResponseForbidden("Forbidden")
@@ -48,6 +51,7 @@ def topiclist(request, topicid):
     request.session['lastlist'] = "cfp/topic/%s" % topicid
     return TemplateResponse(request, "topiclist.html",
                             {'proposals': proposals,
+                             'multitopic': multitopic,
                              'sched': 'scheduling' in settings.INSTALLED_APPS,
                              'topic': topic})