add pinned news, delete db vlaue 'is_event'

fet2020/posts/managers.py

@@ -0,0 +1,73 @@
+from django.db import models
+from django.db.models import Q
+from django.utils import timezone
+
+
+class PostManager(models.Manager):
+    def get_queryset(self):
+        return super().get_queryset()
+
+
+class ArticleManager(models.Manager):
+    """
+    Provide a query set only for "Article"
+    regular fet meetings should not be contained in the news stream
+    """
+    def get_queryset(self):
+        return super().get_queryset().filter(
+            Q(post_type='E')
+            | Q(post_type='N')
+        ).order_by('-public_date')
+
+    def get_pinned_article(self):
+        return self.get_queryset().filter(is_pinned=True)
+
+
+class NewsManager(models.Manager):
+    """
+    Provide a query set only for "News"
+    """
+    def get_queryset(self):
+        return super().get_queryset().filter(post_type='N')
+
+
+class AllEventManager(models.Manager):
+    """
+    Provide a query set for all events ("Event" and "Fet Meeting")
+    """
+    def get_queryset(self):
+        return super().get_queryset().filter(Q(post_type='E') | Q(post_type='F'))
+
+    def get_five_events(self):
+        return self.get_queryset().order_by('-event_start')[:5]
+
+
+class EventManager(models.Manager):
+    """
+    Provide a query set only for "Events"
+    regular fet meetings should not be contained in the news stream
+    """
+    def get_queryset(self):
+        return super().get_queryset().filter(post_type='E')
+
+
+class FetMeetingManager(models.Manager):
+    """
+    Provide a query set only for "Fet Meeting"
+    """
+    def get_queryset(self):
+        return super().get_queryset().filter(post_type='F')
+
+    def _get_future_events(self):
+        date_today = timezone.now()
+        return self.get_queryset().filter(event_start__gt=date_today).order_by('event_start')
+
+    def _get_past_events(self):
+        date_today = timezone.now()
+        return self.get_queryset().filter(event_start__lt=date_today).order_by('-event_start')
+
+    def get_meetings(self):
+        meetings = []
+        meetings.append(self._get_future_events().first())
+        meetings.append(self._get_past_events().first())
+        return meetings