Add next and previous buttons to episode page

EpisodesCommunity/settings.py

@@ -174,3 +174,9 @@ AUTH_REDIRECT_URL = oauth_options.get('redirect_url')
 
 DISCUSSIONS_PER_PAGE = 26
 DISCUSSIONS_REPLIES_PER_PAGE = 10
+
+# Domain of this app
+DOMAIN='localhost'
+
+# Use subdomains for each show
+DOMAIN_SUBDOMAIN_SHOWS=False

LandingPage/views.py

@@ -33,6 +33,12 @@ from .models import DiscussionBoard
 
 # Get a show's URL by its abbreviation
 def get_show_url(abbr):
+    use_sdms = getattr(settings, "DOMAIN_SUBDOMAIN_SHOWS", False)
+    domain = getattr(settings, "DOMAIN", 'localhost')
+
+    if use_sdms:
+        return '%s.%s' % (abbr, domain)
+
     return '/show/%s' % (abbr)
 
 # Redirect url should point to this view

Show/templates/episode.html

@@ -55,6 +55,11 @@
 	<div class="submission-list">
 	{% for sbm in submissions %}
 	<div class="submission{% if sbm.positives < sbm.negatives %} buried{% endif %}{% if sbm.pinned %} pinned{% endif %}{% if highlight and highlight == sbm.id %} highlighted{% endif %} mb-2">
+		{% if forloop.counter0 == 0 and sbm.embed and not sbm.positives < sbm.negatives %}
+		<div class="onsite-player d-flex justify-content-center mb-2">
+			<iframe src="{{sbm.embed}}" width="1024" height="640"></iframe>
+		</div>
+		{% endif %}
 		<div class="row">
 			<div class="col">
 				<a href="{{sbm.url}}" class="link d-block mb-2">
@@ -114,5 +119,26 @@
 			<span class="fillertext"><a href="/login">Log in</a> to submit a link</span>
 		{% endif %}
 	</div>
+	<p>Discuss <q>{{episode.name}}</q> on the <a href="{{showurl}}/discuss">discussion boards</a>!</p>
+	<ul class="nav fixed-bottom d-flex justify-content-center border-top bg-light">
+		{% if has_previous %}
+		<li class="nav-item">
+			<a class="nav-link" href="{{showurl}}/episode/{{episode.season.number}}/{{episode.episode|add:'-1'}}">Previous Episode</a>
+		</li>
+		{% else %}
+		<li class="nav-item">
+			<a href="#" class="nav-link disabled">Previous Episode</a>
+		</li>
+		{% endif %}
+		{% if has_next %}
+		<li class="nav-item">
+			<a class="nav-link" href="{{showurl}}/episode/{{episode.season.number}}/{{episode.episode|add:'1'}}">Next Episode</a>
+		</li>
+		{% else %}
+		<li class="nav-item">
+			<a href="#" class="nav-link disabled">Next Episode</a>
+		</li>
+		{% endif %}
+	</ul>
 </section>
 {% endblock %}

Show/templates/show.html

@@ -21,6 +21,7 @@
 			<li class="breadcrumb-item active" aria-current="page">{{show.name}}</li>
 		</ol>
 	</nav>
+	<p>Discuss {{show.name}} on the <a href="discuss">discussion boards</a>!</p>
 	{% for season in seasons %}
 	<div class="row mb-3">
 		<div class="col-md-2 mb-2">

Show/views.py

@@ -15,7 +15,7 @@
 #  along with this program.  If not, see <https://www.gnu.org/licenses/>.
 
 from django.template import RequestContext
-from django.shortcuts import render, get_list_or_404, get_object_or_404
+from django.shortcuts import render, get_list_or_404, get_object_or_404, redirect
 from django.views import View
 from django.views.generic.base import TemplateView
 from django.contrib.auth.decorators import login_required
@@ -69,6 +69,34 @@ class EpisodeView(TemplateView):
 
         # Get show by abbr
         show = get_object_or_404(Show, abbr=abbr)
+
+        # Check next or previous
+        season_number = int(season)
+        episode_number = int(episode)
+
+        lastep = Episode.objects.filter(season__number=season_number,show=show).order_by('episode').last()
+        season_count = Season.objects.filter(show=show).count()
+
+        if season_count == 0:
+            raise Http404('This show has no episodes.')
+
+        if episode_number == 0 and season_number > 1:
+            season_number -= 1
+            epobj = Episode.objects.filter(season__number=season_number,show=show).order_by('episode').last()
+
+            if not epobj:
+                raise Http404('No Episode matches the given query.')
+
+            episode_number = int(epobj.episode)
+            ctx['url'] = '%s/episode/%d/%d'%(ctx['showurl'], season_number, episode_number)
+        elif episode_number > int(lastep.episode):
+            season_number += 1
+            episode_number = 1
+            ctx['url'] = '%s/episode/%d/%d'%(ctx['showurl'], season_number, episode_number)
+
+        if 'url' in ctx:
+            return ctx
+
         episode = get_object_or_404(Episode, show=show,season__number=season,episode=episode)
 
         # I acknowledge that this is a mess. A functional mess. But a mess nonetheless. Hey, that rhymed!
@@ -90,9 +118,17 @@ class EpisodeView(TemplateView):
         ctx['episode'] = episode
         ctx['submissions'] = submissions
         ctx['highlight'] = highlight
+        ctx['has_previous'] = episode_number > 1 or season_number > 1
+        ctx['has_next'] = episode_number < int(lastep.episode) or season_number < season_count
 
         return ctx
 
+    def render_to_response(self, context):
+        if 'url' in context:
+            return redirect(context['url'])
+
+        return super(EpisodeView, self).render_to_response(context)
+
 def EpisodeFindSubmission(req, abbr, submission):
     show = get_object_or_404(Show, abbr=abbr)
     submission = int(submission)