misc: account for slug default max length of 50 characters (#30855)

bijoe/visualization/migrations/0003_visualization_slug.py

@@ -16,7 +16,7 @@ class Migration(migrations.Migration):
         new_slugs = {}
         for instance in Visualization.objects.all():
             if not instance.slug:
-                new_slug = slugify(instance.name[:60]).strip('-')
+                new_slug = slugify(instance.name[:40]).strip('-')
                 if new_slug in new_slugs:
                     i = 2
                     while True:

bijoe/visualization/models.py

@@ -51,7 +51,7 @@ class Visualization(models.Model):
 
     def save(self, *args, **kwargs):
         if not self.slug:
-            slug = base_slug = slugify(self.name)[:60].strip('-')
+            slug = base_slug = slugify(self.name)[:40].strip('-')
             i = 1
             while True:
                 try: