2 files changed, 21 insertions, 2 deletions
diff --git a/admin.py b/admin.py
index 2fc0e78..48930e0 100644
--- a/admin.py
+++ b/admin.py
@@ -21,6 +21,7 @@ from .models import Timetable, LastUpdate, Group, Room, Course, Year
 class YearAdmin(admin.ModelAdmin):
     prepopulated_fields = {"slug": ("name",)}
     list_display = ("name",)
+    ordering = ("name",)
 
 
 @admin.register(Timetable)
diff --git a/models.py b/models.py
index 6bb9733..061a213 100644
--- a/models.py
+++ b/models.py
@@ -21,20 +21,38 @@ from django.utils.text import slugify
 from .utils import parse_group
 
 
-class Year(models.Model):
+class SlugModel(models.Model):
+    def save(self):
+        if not self.slug:
+            self.slug = slugify(self.name)
+
+        super(SlugModel, self).save()
+
+
+    class Meta:
+        abstract = True
+
+
+class Year(SlugModel):
     name = models.CharField(max_length=16, verbose_name="année")
     slug = models.SlugField(max_length=16, unique=True, default="")
 
     def __str__(self):
         return self.name
 
+    def save(self):
+        if not self.slug:
+            self.slug = slugify(self.name)
+
+        super(Year, self).save()
+
 
     class Meta:
         verbose_name = "année"
         verbose_name_plural = "années"
 
 
-class Timetable(models.Model):
+class Timetable(SlugModel):
     year = models.ForeignKey(Year, on_delete=models.CASCADE, verbose_name="année")
     name = models.CharField(max_length=64, verbose_name="nom")
     url = models.URLField(max_length=255, verbose_name="URL")