Merge remote-tracking branch 'origin/feature/auto-username' into develop

apps/authorization/serializers/common.py

@@ -18,6 +18,7 @@ from utils.tokens import GMRefreshToken
 # Serializers
 class SignupSerializer(serializers.ModelSerializer):
     """Signup serializer serializer mixin"""
+
     class Meta:
         model = account_models.User
         fields = (
@@ -35,11 +36,18 @@ class SignupSerializer(serializers.ModelSerializer):
 
     def validate_username(self, value):
         """Custom username validation"""
+        if value:
             valid = utils_methods.username_validator(username=value)
             if not valid:
                 raise utils_exceptions.NotValidUsernameError()
             if account_models.User.objects.filter(username__iexact=value).exists():
                 raise serializers.ValidationError()
+
+        else:
+            value = utils_methods.username_random()
+            while account_models.User.objects.filter(username__iexact=value).exists():
+                value = utils_methods.username_random()
+
         return value
 
     def validate_email(self, value):

apps/utils/methods.py

@@ -56,6 +56,14 @@ def username_validator(username: str) -> bool:
         return True
 
 
+def username_random():
+    """Generate random username"""
+    return '{letters}{digits}'.format(
+        letters=''.join([random.choice(string.ascii_lowercase) for _ in range(5)]),
+        digits=random.randrange(100, 1000)
+    )
+
+
 def image_path(instance, filename):
     """Determine avatar path method."""
     filename = '%s.jpeg' % generate_code()