# Identifier Generator View

* refactors identifier generator view methods into classes
* introduces IdentifierGenerator
* introduces AbstractIdentifierGeneratorView

konova/utils/generators.py

@@ -62,3 +62,26 @@ def generate_qr_code(content: str, size: int = 20) -> str:
     stream = BytesIO()
     qrcode_img.save(stream)
     return stream.getvalue().decode()
+
+
+class IdentifierGenerator:
+    _MODEL = None
+
+    def __init__(self, model):
+        from konova.models import BaseObject
+        if not issubclass(model, BaseObject):
+            raise AssertionError("Model must be a subclass of BaseObject!")
+
+        self._MODEL = model
+
+    def generate_id(self) -> str:
+        """ Generates a unique identifier
+
+        Returns:
+
+        """
+        unpersisted_object = self._MODEL()
+        identifier = unpersisted_object.generate_new_identifier()
+        while self._MODEL.objects.filter(identifier=identifier).exists():
+            identifier = unpersisted_object.generate_new_identifier()
+        return identifier