Fixed #30397 -- Added app_label/class interpolation for names of indexes and constraints.

tests/constraints/models.py

@@ -13,6 +13,10 @@ class Product(models.Model):
                 check=models.Q(price__gt=models.F('discounted_price')),
                 name='price_gt_discounted_price',
             ),
+            models.CheckConstraint(
+                check=models.Q(price__gt=0),
+                name='%(app_label)s_%(class)s_price_gt_0',
+            ),
             models.UniqueConstraint(fields=['name', 'color'], name='name_color_uniq'),
             models.UniqueConstraint(
                 fields=['name'],
@@ -20,3 +24,20 @@ class Product(models.Model):
                 condition=models.Q(color__isnull=True),
             ),
         ]
+
+
+class AbstractModel(models.Model):
+    age = models.IntegerField()
+
+    class Meta:
+        abstract = True
+        constraints = [
+            models.CheckConstraint(
+                check=models.Q(age__gte=18),
+                name='%(app_label)s_%(class)s_adult',
+            ),
+        ]
+
+
+class ChildModel(AbstractModel):
+    pass