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-rw-r--r--models.py29
1 files changed, 13 insertions, 16 deletions
diff --git a/models.py b/models.py
index 1723536..1e96a88 100644
--- a/models.py
+++ b/models.py
@@ -15,17 +15,19 @@
# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
from django.db import connection, models
-from django.db.models import Q
+from django.db.models import Count, Manager, Q
from django.db.models.expressions import RawSQL
-from django.db.models.functions import ExtractYear
+from django.db.models.functions import Extract, ExtractYear
from django.utils.text import slugify
-from .db import ExtractWeek, GroupedManager
-
import hashlib
import os
+class ExtractWeek(Extract):
+ lookup_name = "week"
+
+
class Timetable(models.Model):
name = models.CharField(max_length=64, unique=True, verbose_name="nom")
url = models.URLField(max_length=255, unique=True, verbose_name="URL")
@@ -141,22 +143,17 @@ class Room(models.Model):
verbose_name_plural = "salles"
-class CourseManager(GroupedManager):
- def __get_weeks(self, qs):
- extractYear = ExtractYear("begin")
- qs = qs.group_by("groups", "year", "week", "groups__timetable", "groups__mention", "groups__subgroup", "groups__td", "groups__tp", "begin", "groups__name").order_by("groups__name", "year", "week")
-
- if connection.vendor == "postgresql":
- return qs.annotate(week=ExtractWeek("begin"), year=extractYear)
- else:
- return qs.annotate(week=RawSQL("""cast(strftime("%%W", "begin") as integer)""", []), year=extractYear)
-
+class CourseManager(Manager):
def get_courses_for_group(self, group, **filters):
return self.get_queryset().filter(Q(groups__td__isnull=True) | Q(groups__td=group.td), Q(groups__tp__isnull=True) | Q(groups__tp=group.tp), groups__mention=group.mention, groups__subgroup=group.subgroup, timetable=group.timetable, **filters).order_by("begin")
def get_weeks(self, **criteria):
- qs = self.get_queryset().filter(**criteria)
- return self.__get_weeks(qs)
+ qs = self.get_queryset().filter(**criteria).order_by("groups__name", "year", "week").annotate(_=Count(("groups", "year", "week", "begin")), year=ExtractYear("begin"))
+
+ if connection.vendor == "postgresql":
+ return qs.annotate(week=ExtractWeek("begin"))
+ else:
+ return qs.annotate(week=RawSQL("""cast(strftime("%%W", "begin") as integer)""", []))
class Course(models.Model):