Introduce generic comments system

Replace reviewers and proposer notes by a set of comments
that can be posted on a proposal.

cfp/models.py

@@ -77,11 +77,6 @@ class Proposal(models.Model):
                   "blueprint called 'accounting'. You can specify multiple "
                   "links, separated by spaces. This field is optional.")
     status = models.CharField(max_length=1, choices=STATUSES)
-    proposer_notes = models.TextField(blank=True,
-        help_text="Notes from the proposer to the evaluation committee. "
-                  "Those notes will not appear in the public description. "
-                  "This field is optional.")
-    reviewer_notes = models.TextField(blank=True)
     scheduled = models.BooleanField(default=False)
     last_modified = models.DateTimeField(auto_now=True)
 
@@ -92,23 +87,38 @@ class Proposal(models.Model):
         return self.title
 
 
+class Comment(models.Model):
+    proposal = models.ForeignKey(Proposal)
+    posted_date = models.DateTimeField(auto_now=True)
+    author = models.ForeignKey(User)
+    content = models.TextField(verbose_name="Add your comment")
+
+    class Meta:
+        ordering = ['posted_date']
+
+
+class CommentForm(ModelForm):
+    class Meta:
+        model = Comment
+        exclude = ('proposal', 'posted_date', 'author')
+
+
 class ProposalForm(ModelForm):
     class Meta:
         model = Proposal
-        exclude = ('proposer', 'reviewer_notes', 'status', 'scheduled')
+        exclude = ('proposer', 'status', 'scheduled')
 
 
 class ProposalEditForm(ModelForm):
     class Meta:
         model = Proposal
-        exclude = ('topic', 'proposer', 'reviewer_notes', 'status',
+        exclude = ('topic', 'proposer', 'status', 'scheduled')
-                   'scheduled')
 
 
 class ProposalReviewForm(ModelForm):
     class Meta:
         model = Proposal
-        fields = ('status', 'reviewer_notes')
+        fields = ('status',)
 
 
 class ProposalSwitchForm(ModelForm):

cfp/templates/cfpdetails.html

@@ -1,9 +1,9 @@
-{% extends "base.html" %}
+{% extends "regform.html" %}
 {% block helppage %}
 <p>This screen lets you see the details of a proposed session.</p>
 <p>Note that you can only edit sessions that you suggested yourself (or if you're the topic lead). Sessions in <i>Preapproved</i> state cannot be changed.</p>
 {% endblock %}
-{% block content %}
+{% block formtitle %}
 <h2>{{ proposal.title }}</h2>
 <p>Proposed by <b>{{ proposal.proposer }}</b>
 in topic <b>{{ proposal.topic }}</b></p>
@@ -29,4 +29,17 @@ Scheduled
 <a class=roundedButton href="/cfp/edit/{{ proposal.id }}">Edit</A>
 {% endif %}
 <a class=roundedButton href="/{{ request.session.lastlist }}">Back</A>
+<h4>Comments</h4>
+<hr>
+{% for comment in comments %}
+<p>Comment by {{ comment.author }}
+on {{ comment.posted_date|date:"Y-m-d G:i O" }}:<br>
+{{ comment.content|linebreaks|urlize }}</p>
+<br><hr>
+{% endfor %}
+<form action="/cfp/details/{{ proposal.id }}" method="post">
+{% endblock %}
+{% block formfooter %}
+<input id="toggleButton" class="roundedButton" type="submit"
+       value="Add comment" />
 {% endblock %}

cfp/templates/cfpedit.html

@@ -5,10 +5,6 @@
 {% endblock %}
 {% block formtitle %}
 <h2>Edit proposed {{proposal.topic.name}} session</h2>
-{% if proposal.reviewer_notes %}
-<h4>Reviewer notes:</h4>
-<p>{{ proposal.reviewer_notes }}</p>
-{% endif %}
 <form action="/cfp/edit/{{ proposal.id }}" method="post">
 {% endblock %}
 {% block formfooter %}

cfp/templates/cfpreview.html

@@ -28,8 +28,4 @@ in topic <b>{{ proposal.topic }}</b></p>
 {% endfor %}
 </ul>
 {% endif %}
-{% if proposal.proposer_notes %}
-<h4>Proposer notes:</h4>
-<p>{{ proposal.proposer_notes }}</p>
-{% endif %}
 {% endblock %}

cfp/views.py

@@ -21,8 +21,8 @@ from django.contrib.auth import logout
 from django.core.mail import EmailMessage
 from django.http import HttpResponseRedirect, HttpResponseForbidden
 from django.utils.encoding import smart_str
-from odsreg.cfp.models import Proposal, Topic
+from odsreg.cfp.models import Proposal, Topic, Comment
-from odsreg.cfp.models import ProposalForm, ProposalEditForm
+from odsreg.cfp.models import ProposalForm, ProposalEditForm, CommentForm
 from odsreg.cfp.models import ProposalReviewForm, ProposalSwitchForm
 
 
@@ -98,8 +98,21 @@ def is_editable(proposal, user):
 @login_required
 def details(request, proposalid):
     proposal = Proposal.objects.get(id=proposalid)
+    comments = Comment.objects.filter(proposal=proposal)
+    if request.method == 'POST':
+        form = CommentForm(request.POST)
+        if form.is_valid():
+            comment = form.save(commit=False)
+            comment.proposal = proposal
+            comment.author = request.user
+            comment.save()
+            return HttpResponseRedirect('/%s' % request.session['lastlist'])
+    else:
+        form = CommentForm()
     return render(request, "cfpdetails.html",
                   {'proposal': proposal,
+                   'form': form,
+                   'comments': comments,
                    'editable': is_editable(proposal, request.user),
                    'blueprints': linkify(proposal.blueprints)})
 
@@ -154,6 +167,8 @@ def switch(request, proposalid):
 @login_required
 def review(request, proposalid):
     proposal = Proposal.objects.get(id=proposalid)
+    #TODO Allow comment while reviewing to be included in email
+    reviewer_notes = ""
     if not topiclead(request.user, proposal.topic):
         return forbidden()
     current_status = proposal.status
@@ -180,7 +195,7 @@ You can edit your proposal at: %s/cfp/edit/%s""" \
                            smart_str(proposal.title),
                            proposal.topic.lead_username,
                            status_long, proposal.get_status_display(),
-                           smart_str(proposal.reviewer_notes),
+                           smart_str(reviewer_notes),
                            settings.SITE_ROOT, proposalid)
                 email = EmailMessage(settings.EMAIL_PREFIX +
                          "Status change on your session proposal",