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"""
-        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()
+        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()
@@ -185,4 +193,4 @@ def get_image_meta_by_url(url) -> (int, int, int):
     image_raw = requests.get(url)
     image = Image.open(BytesIO(image_raw.content))
     width, height = image.size
-    return int(image_raw.headers.get('content-length')), width, height
+    return int(image_raw.headers.get('content-length')), width, height