Add last unread function

forum/migrations/0004_forumuserinfo.py

@@ -0,0 +1,26 @@
+# -*- coding: utf-8 -*-
+from __future__ import unicode_literals
+
+from django.db import migrations, models
+from django.conf import settings
+from django.utils.timezone import utc
+import datetime
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        migrations.swappable_dependency(settings.AUTH_USER_MODEL),
+        ('forum', '0003_forum_owner_club'),
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name='ForumUserInfo',
+            fields=[
+                ('id', models.AutoField(serialize=False, verbose_name='ID', auto_created=True, primary_key=True)),
+                ('last_read_date', models.DateTimeField(verbose_name='last read date', default=datetime.datetime(1999, 1, 1, 0, 0, tzinfo=utc))),
+                ('user', models.OneToOneField(related_name='_forum_infos', to=settings.AUTH_USER_MODEL)),
+            ],
+        ),
+    ]

forum/migrations/0005_forumuserinfo_read_messages.py

@@ -0,0 +1,19 @@
+# -*- coding: utf-8 -*-
+from __future__ import unicode_literals
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('forum', '0004_forumuserinfo'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='forumuserinfo',
+            name='read_messages',
+            field=models.ManyToManyField(to='forum.ForumMessage', related_name='readers', verbose_name='read messages'),
+        ),
+    ]

forum/migrations/0006_auto_20170128_2243.py

@@ -0,0 +1,25 @@
+# -*- coding: utf-8 -*-
+from __future__ import unicode_literals
+
+from django.db import migrations, models
+from django.conf import settings
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        migrations.swappable_dependency(settings.AUTH_USER_MODEL),
+        ('forum', '0005_forumuserinfo_read_messages'),
+    ]
+
+    operations = [
+        migrations.RemoveField(
+            model_name='forumuserinfo',
+            name='read_messages',
+        ),
+        migrations.AddField(
+            model_name='forummessage',
+            name='readers',
+            field=models.ManyToManyField(to=settings.AUTH_USER_MODEL, related_name='read_messages', verbose_name='readers'),
+        ),
+    ]

forum/models.py

@@ -7,6 +7,9 @@ from django.db import IntegrityError, transaction
 from django.core.urlresolvers import reverse
 from django.utils import timezone
 
+from datetime import datetime
+import pytz
+
 from core.models import User, MetaGroup, Group, SithFile
 from club.models import Club
 
@@ -136,10 +139,14 @@ class ForumMessage(models.Model):
     title = models.CharField(_("title"), default="", max_length=64, blank=True)
     message = models.TextField(_("message"), default="")
     date = models.DateTimeField(_('date'), default=timezone.now)
+    readers = models.ManyToManyField(User, related_name="read_messages", verbose_name=_("readers"))
 
     class Meta:
         ordering = ['id']
 
+    def __str__(self):
+        return "%s" % (self.title)
+
     def is_owned_by(self, user):
         return self.topic.is_owned_by(user) or user.id == self.author.id
 
@@ -150,5 +157,14 @@ class ForumMessage(models.Model):
         return user.can_view(self.topic)
 
     def get_absolute_url(self):
-        return self.topic.get_absolute_url()
+        return self.topic.get_absolute_url() + "#first_unread"
+
+    def mark_as_read(self, user):
+        self.readers.add(user)
+
+class ForumUserInfo(models.Model):
+    user = models.OneToOneField(User, related_name="_forum_infos")
+    last_read_date = models.DateTimeField(_('last read date'), default=datetime(year=settings.SITH_SCHOOL_START_YEAR,
+        month=1, day=1, tzinfo=pytz.UTC))
+    # read_messages = models.ManyToManyField(ForumMessage, related_name="readers", verbose_name=_("read messages"))
 

forum/templates/forum/forum.jinja

@@ -1,6 +1,9 @@
 {% extends "core/base.jinja" %}
-{% from 'forum/macros.jinja' import display_forum %}
-{% from 'core/macros.jinja' import user_profile_link %}
+{% from 'forum/macros.jinja' import display_forum, display_topic %}
+
+{% block title %}
+{{ forum }}
+{% endblock %}
 
 {% block content %}
     <div>
@@ -21,34 +24,7 @@
     {{ display_forum(f, user) }}
     {% endfor %}
     {% for t in topics %}
-    <div class="topic">
-        <div class="ib w_medium">
-            <a class="ib w_big" href="{{ url('forum:view_topic', topic_id=t.id) }}">
-                <h5>{{ t.title }}</h5>
-                <p>{{ t.description }}</p>
-            </a>
-            {% if user.is_owner(t) %}
-            <div class="ib" style="text-align: center;">
-                <a href="{{ url('forum:edit_topic', topic_id=t.id) }}">Edit</a>
-            </div>
-            {% endif %}
-        </div>
-        <div class="ib w_medium">
-            <div class="ib w_medium">
-                <div class="ib w_medium" style="text-align: center;">
-                    {{ user_profile_link(t.author) }}
-                </div>
-                <div class="ib w_medium" style="text-align: center;">
-                    {{ t.messages.count() }}
-                </div>
-            </div>
-            <div class="ib w_medium" style="text-align: center;">
-                {% set last_msg = t.messages.order_by('id').last() %}
-                {{ user_profile_link(last_msg.author) }} <br/>
-                {{ last_msg.date|date(DATETIME_FORMAT) }} {{ last_msg.date|time(DATETIME_FORMAT) }}
-            </div>
-        </div>
-    </div>
+    {{ display_topic(t, user) }}
     {% endfor %}
 {% endblock %}
 

forum/templates/forum/last_unread.jinja

@@ -0,0 +1,24 @@
+{% extends "core/base.jinja" %}
+{% from 'forum/macros.jinja' import display_topic %}
+
+{% block title %}
+{% trans %}Last unread messages{% endtrans %}
+{% endblock %}
+
+{% block content %}
+    <p>
+    <a href="{{ url('forum:main') }}">Forum</a> >
+    </p>
+    <h3>{% trans %}Forum{% endtrans %}</h3>
+    <h4>{% trans %}Last unread messages{% endtrans %}</h4>
+    <p>
+        <a class="ib" href="{{ url('forum:mark_all_as_read') }}">{% trans %}Mark all as read{% endtrans %}</a>
+        <a class="ib" href="{{ url('forum:last_unread') }}">{% trans %}Refresh{% endtrans %}</a>
+    </p>
+    {% for t in forumtopic_list %}
+    {{ display_topic(t, user, True) }}
+    {% endfor %}
+{% endblock %}
+
+
+

forum/templates/forum/macros.jinja

@@ -1,3 +1,5 @@
+{% from 'core/macros.jinja' import user_profile_link %}
+
 {% macro display_forum(forum, user) %}
 <div class="forum {% if forum.is_category %}category{% endif %}">
     <div class="ib w_big">
@@ -35,4 +37,38 @@
 </div>
 {% endmacro %}
 
+{% macro display_topic(topic, user, first_unread=False) %}
+<div class="topic">
+    <div class="ib w_medium">
+        {% if first_unread %}
+        <a class="ib w_big" href="{{ url('forum:view_topic', topic_id=topic.id) }}#first_unread">
+        {% else %}
+        <a class="ib w_big" href="{{ url('forum:view_topic', topic_id=topic.id) }}">
+        {% endif %}
+            <h5>{{ topic.title }}</h5>
+            <p>{{ topic.description }}</p>
+        </a>
+        {% if user.is_owner(topic) %}
+        <div class="ib" style="text-align: center;">
+            <a href="{{ url('forum:edit_topic', topic_id=topic.id) }}">{% trans %}Edit{% endtrans %}</a>
+        </div>
+        {% endif %}
+    </div>
+    <div class="ib w_medium">
+        <div class="ib w_medium">
+            <div class="ib w_medium" style="text-align: center;">
+                {{ user_profile_link(topic.author) }}
+            </div>
+            <div class="ib w_medium" style="text-align: center;">
+                {{ topic.messages.count() }}
+            </div>
+        </div>
+        <div class="ib w_medium" style="text-align: center;">
+            {% set last_msg = topic.messages.order_by('id').last() %}
+            {{ user_profile_link(last_msg.author) }} <br/>
+            {{ last_msg.date|date(DATETIME_FORMAT) }} {{ last_msg.date|time(DATETIME_FORMAT) }}
+        </div>
+    </div>
+</div>
+{% endmacro %}
 

forum/templates/forum/main.jinja

@@ -2,16 +2,25 @@
 {% from 'core/macros.jinja' import user_profile_link %}
 {% from 'forum/macros.jinja' import display_forum %}
 
+{% block title %}
+{% trans %}Forum{% endtrans %}
+{% endblock %}
+
 {% block content %}
     <p>
     <a href="{{ url('forum:main') }}">Forum</a> >
     </p>
     <h3>{% trans %}Forum{% endtrans %}</h3>
     <p>
-    {% if user.is_in_group(settings.SITH_GROUP_FORUM_ADMIN_ID) or user.is_in_group(settings.SITH_GROUP_COM_ADMIN_ID) %}
-        <a href="{{ url('forum:new_forum') }}">New forum</a>
-    {% endif %}
+        <a class="ib" href="{{ url('forum:last_unread') }}">{% trans %}View last unread messages{% endtrans %}</a>
+        <a class="ib" href="{{ url('forum:mark_all_as_read') }}">{% trans %}Mark all as read{% endtrans %}</a>
+        <a class="ib" href="{{ url('forum:main') }}">{% trans %}Refresh{% endtrans %}</a>
     </p>
+    {% if user.is_in_group(settings.SITH_GROUP_FORUM_ADMIN_ID) or user.is_in_group(settings.SITH_GROUP_COM_ADMIN_ID) %}
+    <p>
+        <a href="{{ url('forum:new_forum') }}">{% trans %}New forum{% endtrans %}</a>
+    </p>
+    {% endif %}
     {% for f in forum_list %}
     <div style="padding: 4px; margin: 4px">
     {{ display_forum(f, user) }}

forum/templates/forum/topic.jinja

@@ -1,6 +1,10 @@
 {% extends "core/base.jinja" %}
 {% from 'core/macros.jinja' import user_profile_link %}
 
+{% block title %}
+{{ topic }}
+{% endblock %}
+
 {% block head %}
 {{ super() }}
 <style type="text/css" media="all">
@@ -32,8 +36,16 @@
     <h3>{{ topic.title }}</h3>
     <p>{{ topic.description }}</p>
     <p><a href="{{ url('forum:new_message', topic_id=topic.id) }}">Reply</a></p>
+    {% set unread = False %}
     {% for m in topic.messages.all() %}
+    {% if m.id == first_unread_message_id %}
+    <div class="message unread" id="first_unread">
+    {% set unread = True %}
+    {% elif unread %}
+    <div class="message unread">
+    {% else %}
     <div class="message">
+    {% endif %}
         <div class="msg_author">
             {% if m.author.profile_pict %}
             <img src="{{ m.author.profile_pict.get_download_url() }}" alt="{% trans %}Profile{% endtrans %}" id="picture" />
@@ -64,6 +76,7 @@
             </div>
         </div>
     </div>
+    {# m.mark_as_read(user) or "" #}
     {% endfor %}
 {% endblock %}
 

forum/urls.py

@@ -5,6 +5,8 @@ from forum.views import *
 urlpatterns = [
     url(r'^$', ForumMainView.as_view(), name='main'),
     url(r'^new_forum$', ForumCreateView.as_view(), name='new_forum'),
+    url(r'^mark_all_as_read$', ForumMarkAllAsRead.as_view(), name='mark_all_as_read'),
+    url(r'^last_unread$', ForumLastUnread.as_view(), name='last_unread'),
     url(r'^(?P<forum_id>[0-9]+)$', ForumDetailView.as_view(), name='view_forum'),
     url(r'^(?P<forum_id>[0-9]+)/edit$', ForumEditView.as_view(), name='edit_forum'),
     url(r'^(?P<forum_id>[0-9]+)/delete$', ForumDeleteView.as_view(), name='delete_forum'),

forum/views.py

@@ -16,6 +16,29 @@ class ForumMainView(CanViewMixin, ListView):
     queryset = Forum.objects.filter(parent=None)
     template_name = "forum/main.jinja"
 
+class ForumMarkAllAsRead(RedirectView):
+    permanent = False
+    url = reverse_lazy('forum:last_unread')
+
+    def get(self, request, *args, **kwargs):
+        try:
+            fi = request.user.forum_infos
+            fi.last_read_date = timezone.now()
+            fi.save()
+        except: pass
+        return super(ForumMarkAllAsRead, self).get(request, *args, **kwargs)
+
+class ForumLastUnread(ListView):
+    model = ForumTopic
+    template_name = "forum/last_unread.jinja"
+
+    def get_queryset(self):
+        l = ForumMessage.objects.exclude(readers=self.request.user).filter(
+                date__gt=self.request.user.forum_infos.last_read_date).values_list('topic') # TODO try to do better
+        return self.model.objects.filter(id__in=l).annotate(models.Max('messages__date')).order_by('-messages__date__max')
+        # return self.model.objects.exclude(messages__readers=self.request.user).distinct().annotate(
+                # models.Max('messages__date')).order_by('-messages__date__max')
+
 class ForumCreateView(CanCreateMixin, CreateView):
     model = Forum
     fields = ['name', 'parent', 'owner_club', 'is_category', 'edit_groups', 'view_groups']
@@ -95,6 +118,15 @@ class ForumTopicDetailView(CanViewMixin, DetailView):
     template_name = "forum/topic.jinja"
     context_object_name = "topic"
 
+    def get_context_data(self, **kwargs):
+        kwargs = super(ForumTopicDetailView, self).get_context_data(**kwargs)
+        msg = self.object.messages.exclude(readers=self.request.user).order_by('id').first()
+        try:
+            kwargs['first_unread_message_id'] = msg.id
+        except:
+            kwargs['first_unread_message_id'] = -1
+        return kwargs
+
 class ForumMessageEditView(CanEditMixin, UpdateView):
     model = ForumMessage
     fields = ['title', 'message']