Fix #384: duplicate tags due to case insensitivity

src/documents/models.py

@@ -442,8 +442,10 @@ class FileInfo:
     def _get_tags(cls, tags):
         r = []
         for t in tags.split(","):
-            r.append(
+            r.append(Tag.objects.get_or_create(
-                Tag.objects.get_or_create(slug=t, defaults={"name": t})[0])
+                slug=t.lower(),
+                defaults={"name": t}
+            )[0])
         return tuple(r)
 
     @classmethod

src/documents/tests/test_consumer.py

@@ -3,7 +3,7 @@ from unittest import mock
 from tempfile import TemporaryDirectory
 
 from ..consumer import Consumer
-from ..models import FileInfo
+from ..models import FileInfo, Tag
 
 
 class TestConsumer(TestCase):
@@ -190,6 +190,20 @@ class TestAttributes(TestCase):
             ()
         )
 
+    def test_case_insensitive_tag_creation(self):
+        """
+        Tags should be detected and created as lower case.
+        :return:
+        """
+
+        path = "Title - Correspondent - tAg1,TAG2.pdf"
+        self.assertEqual(len(FileInfo.from_path(path).tags), 2)
+
+        path = "Title - Correspondent - tag1,tag2.pdf"
+        self.assertEqual(len(FileInfo.from_path(path).tags), 2)
+
+        self.assertEqual(Tag.objects.all().count(), 2)
+
 
 class TestFieldPermutations(TestCase):