add display for WorkType

kontor-api/src/db/models/media.py

@@ -98,3 +98,14 @@ class MediaVideo(Base, BaseMixin):
     title = Column(String)
     url = Column(String, unique=True)
     should_download = Column(Boolean)
+
+    def __repr__(self):
+        return f'MediaFile({self.id} {self.title} {self.url})'
+
+    def __str__(self):
+        if self.title is None:
+            return f'{self.url}({self.id})'
+        else:
+            return f'{self.title}({self.id})'
+
+