Pass lesson periods to tempalte, sorted by day.

biscuit/apps/chronos/views.py

@@ -3,10 +3,31 @@ from django.shortcuts import render
 
 from biscuit.core.decorators import admin_required
 
+from .models import LessonPeriod
+
 
 @login_required
 @admin_required
 def timetable(request):
     context = {}
 
+    lesson_periods = LessonPeriod.objects.all()
+
+    if 'group' in request.GET:
+        lesson_periods = lesson_periods.filter(
+            lesson__groups__pk__contains=int(request.GET('group')))
+    if 'teacher' in request.GET:
+        lesson_periods = lesson_periods.filter(
+            lesson__teachers__pk__contains=int(request.GET('teacher')))
+    if 'room' in request.GET:
+        lesson_periods = lesson_periods.filter(
+            room__pk=int(request.GET('room')))
+
+    per_day = {}
+    for lesson_period in lesson_periods:
+        for period in lesson_period.periods.all():
+            per_day.setdefault(period.weekday, []).append(lesson_period)
+
+    context['lesson_periods'] = per_day
+
     return render(request, 'chronos/tt_week.html', context)