added sharing links and appropriate tests

cookbook/models.py

@@ -1,5 +1,5 @@
 import re
-
+import uuid
 from annoying.fields import AutoOneToOneField
 from django.contrib import auth
 from django.contrib.auth.models import User
@@ -242,6 +242,13 @@ class MealPlan(models.Model):
         return f'{self.get_label()} - {self.date} - {self.meal_type.name}'
 
 
+class ShareLink(models.Model):
+    recipe = models.ForeignKey(Recipe, on_delete=models.CASCADE)
+    uuid = models.UUIDField(default=uuid.uuid4())
+    created_by = models.ForeignKey(User, on_delete=models.CASCADE)
+    created_at = models.DateTimeField(auto_now_add=True)
+
+
 class CookLog(models.Model):
     recipe = models.ForeignKey(Recipe, on_delete=models.CASCADE)
     created_by = models.ForeignKey(User, on_delete=models.CASCADE)