fix slug unique issue

inventory/models.py

@@ -188,7 +188,13 @@ class CarMake(models.Model, LocalizedNameMixin):
 
     def save(self, *args, **kwargs):
         if not self.slug:
-            self.slug = slugify(self.name)
+            base_slug = slugify(self.name)
+            self.slug = base_slug
+            counter = 1
+
+            while self.__class__.objects.filter(slug=self.slug).exclude(pk=self.pk).exists():
+                self.slug = f"{base_slug}-{counter}"
+                counter += 1
         super().save(*args, **kwargs)
     def __str__(self):
         return self.name
@@ -204,7 +210,13 @@ class CarModel(models.Model, LocalizedNameMixin):
     slug = models.SlugField(max_length=255, unique=True, blank=True, null=True)
     def save(self, *args, **kwargs):
         if not self.slug:
-            self.slug = slugify(self.name)
+            base_slug = slugify(self.name)
+            self.slug = base_slug
+            counter = 1
+
+            while self.__class__.objects.filter(slug=self.slug).exclude(pk=self.pk).exists():
+                self.slug = f"{base_slug}-{counter}"
+                counter += 1
         super().save(*args, **kwargs)
 
     def __str__(self):
@@ -227,7 +239,13 @@ class CarSerie(models.Model, LocalizedNameMixin):
     slug = models.SlugField(max_length=255, unique=True, blank=True, null=True)
     def save(self, *args, **kwargs):
         if not self.slug:
-            self.slug = slugify(self.name)
+            base_slug = slugify(self.name)
+            self.slug = base_slug
+            counter = 1
+
+            while self.__class__.objects.filter(slug=self.slug).exclude(pk=self.pk).exists():
+                self.slug = f"{base_slug}-{counter}"
+                counter += 1
         super().save(*args, **kwargs)
 
     def __str__(self):
@@ -249,7 +267,13 @@ class CarTrim(models.Model, LocalizedNameMixin):
     slug = models.SlugField(max_length=255, unique=True, blank=True, null=True)
     def save(self, *args, **kwargs):
         if not self.slug:
-            self.slug = slugify(self.name)
+            base_slug = slugify(self.name)
+            self.slug = base_slug
+            counter = 1
+
+            while self.__class__.objects.filter(slug=self.slug).exclude(pk=self.pk).exists():
+                self.slug = f"{base_slug}-{counter}"
+                counter += 1
         super().save(*args, **kwargs)
 
     def __str__(self):
@@ -288,7 +312,13 @@ class CarSpecification(models.Model, LocalizedNameMixin):
     slug = models.SlugField(max_length=255, unique=True, blank=True, null=True)
     def save(self, *args, **kwargs):
         if not self.slug:
-            self.slug = slugify(self.name)
+            base_slug = slugify(self.name)
+            self.slug = base_slug
+            counter = 1
+
+            while self.__class__.objects.filter(slug=self.slug).exclude(pk=self.pk).exists():
+                self.slug = f"{base_slug}-{counter}"
+                counter += 1
         super().save(*args, **kwargs)
 
     def __str__(self):
@@ -324,7 +354,13 @@ class CarOption(models.Model, LocalizedNameMixin):
     slug = models.SlugField(max_length=255, unique=True, blank=True, null=True)
     def save(self, *args, **kwargs):
         if not self.slug:
-            self.slug = slugify(self.name)
+            base_slug = slugify(self.name)
+            self.slug = base_slug
+            counter = 1
+
+            while self.__class__.objects.filter(slug=self.slug).exclude(pk=self.pk).exists():
+                self.slug = f"{base_slug}-{counter}"
+                counter += 1
         super().save(*args, **kwargs)
 
     def __str__(self):
@@ -1139,7 +1175,13 @@ class Customer(models.Model):
 
     def save(self, *args, **kwargs):
         if not self.slug:
-            self.slug = slugify(f"{self.first_name} {self.last_name}")
+            base_slug = slugify(f"{self.last_name} {self.first_name}")
+            self.slug = base_slug
+            counter = 1
+
+            while self.__class__.objects.filter(slug=self.slug).exclude(pk=self.pk).exists():
+                self.slug = f"{base_slug}-{counter}"
+                counter += 1
         super().save(*args, **kwargs)
 
     class Meta:
@@ -1508,8 +1550,14 @@ class Lead(models.Model):
     def save(self, *args, **kwargs):
         self.status = self.get_status()
         if not self.slug:
-            self.slug = slugify(f"{self.first_name} {self.last_name}")
-        super(Lead, self).save(*args, **kwargs)
+            base_slug = slugify(f"{self.last_name} {self.first_name}")
+            self.slug = base_slug
+            counter = 1
+
+            while self.__class__.objects.filter(slug=self.slug).exclude(pk=self.pk).exists():
+                self.slug = f"{base_slug}-{counter}"
+                counter += 1
+        super().save(*args, **kwargs)
 
 class Schedule(models.Model):
     PURPOSE_CHOICES = [
@@ -1769,7 +1817,13 @@ class Vendor(models.Model, LocalizedNameMixin):
 
     def save(self, *args, **kwargs):
         if not self.slug:
-            self.slug = slugify(self.name)
+            base_slug = slugify(self.name)
+            self.slug = base_slug
+            counter = 1
+
+            while self.__class__.objects.filter(slug=self.slug).exclude(pk=self.pk).exists():
+                self.slug = f"{base_slug}-{counter}"
+                counter += 1
         super().save(*args, **kwargs)
     class Meta:
         verbose_name = _("Vendor")