LIL-326. Add min school price

project/templates/lilcity/main.html

@@ -13,7 +13,7 @@
       {% endif %}
       class="main__btn btn"
       href="#"
-    >КУПИТЬ ДОСТУП ОТ 2000р. в мес.</a>
+    >КУПИТЬ ДОСТУП ОТ {{ min_school_price }}р. в мес.</a>
   </div>
 </div>
 {% if messages %}

project/views.py

@@ -1,5 +1,6 @@
-from django.views.generic import TemplateView
+from django.db.models import Min
 from django.contrib.auth import get_user_model
+from django.views.generic import TemplateView
 
 from apps.course.models import Course
 from apps.school.models import SchoolSchedule
@@ -15,6 +16,7 @@ class IndexView(TemplateView):
         context.update({
             'course_items': Course.objects.filter(status=Course.PUBLISHED)[:3],
             'school_schedules': SchoolSchedule.objects.all(),
+            'min_school_price': SchoolSchedule.objects.all().aggregate(Min('month_price'))['month_price__min'],
             'authors': User.objects.filter(role=User.AUTHOR_ROLE, show_in_mainpage=True),
         })
         return context