made it posible to select the week to schow in the schedule

fixed bugs
who the hell inserts lectures with zero duration?!?

server.py

@@ -198,7 +198,11 @@ def auth(): # For use with nginx auth_request
 @register_navbar('Drehplan', 'calendar')
 @mod_required
 def schedule():
-	start = date.today() - timedelta(days=date.today().weekday()+7*20)
+	if 'kw' not in request.args:
+		kw=0
+	else:
+		kw=int(request.args['kw'])
+	start = date.today() - timedelta(days=date.today().weekday() -7*kw)
 	days = [{'date': start, 'lectures': [], 'atonce':0, 'index': 0 }]
 	earlieststart=time(23,59)
 	latestend=time(0,0)
@@ -221,7 +225,8 @@ def schedule():
 		freecol=[];
 		for l in i['lectures']:
 			l['time_asdate'] = datetime.strptime(l['time'],'%Y-%m-%d %H:%M:%S')
-			l['end_asdate'] = l['time_asdate']+timedelta(minutes=l['duration'])
+			# who the hell inserts lectures with zero length?!?!?
+			l['end_asdate'] = l['time_asdate']+timedelta(minutes=max(l['duration'],1))
 		for l in sorted([(l['time_asdate'],True,l) for l in i['lectures']] + [(l['end_asdate'],False,l) for l in i['lectures']],key=lambda t:(t[0],t[1])):
 			if l[1]:
 				curcol += 1
@@ -240,12 +245,12 @@ def schedule():
 		i['maxcol'] = max(maxcol,1)
 	times=[]
 	s = min(earlieststart,time(8,0))
-	e = max(latestend,time(20,0))
-	for i in range(s.hour*4,int(60*e.hour/15)):
+	e = max(latestend,time(19,0))
+	for i in range(s.hour*4,min(int((60*e.hour/15)/4)*4+5,24*4)):
 		t = i*15
 		times.append(time(int(t/60),t%60))
 	
-	return render_template('schedule.html',days=days,times=times)
+	return render_template('schedule.html',days=days,times=times,kw=kw)
 
 @app.route('/stats')
 @register_navbar('Statistiken', 'stats')

templates/macros.html

@@ -130,6 +130,7 @@ $('#embedcodebtn').popover(
 				<li>{{ valueeditor(['lectures',lecture.id,'title'], lecture.title) }}</li>
 				{% if lecture.speaker or ismod() %}<li>Gehalten von {{ valueeditor(['lectures',lecture.id,'speaker'], lecture.speaker) }}</li>{% endif %}
 				<li>{{ valueeditor(['lectures',lecture.id,'time'], lecture.time) }} </li>
+				<li>Dauer: {{ valueeditor(['lectures',lecture.id,'duration'], lecture.duration) }} min</li>
 				{% if  ismod() %}
 				{% endif %}
 			</ul>

templates/schedule.html

@@ -5,6 +5,13 @@
 		<div class="panel-heading">
 			<h1 class="panel-title">Drehplan</h1>
 		</div>
+		<div class="row">
+			<div  style="margin-top: 10px;" class="col-xs-12">
+				<a href="{{url_for('schedule', kw=kw-1) }}" class="pull-left btn btn-default">{{ "<<" }}</a>
+				<a href="{{url_for('schedule', kw=kw+1) }}" class="pull-right btn btn-default">{{ ">>" }}</a>
+				<a href="{{url_for('schedule', kw=0) }}" style="width: 80px;" class="center-block btn btn-default">today</a>
+			</div>
+       		</div>
 		<div class="panel-body row table-responsive">
 			<table class="table-bordered col-xs-12">
 				<tr><th></th>{% for d in days if (d.index < 5) or (d.lectures|length) > 0%}<th colspan="{{d.maxcol}}">{{ d.date.strftime("%A (%d.%m.%Y)") }}</th>{% endfor %}</tr>