implemented

DatabaseObject.indexing_values
for each data objects

src/music_kraken/objects/collection.py

@@ -1,17 +1,15 @@
-from typing import List, Iterable, Dict, DefaultDict
+from typing import List, Iterable, Dict
 from collections import defaultdict
 
-from .source import SourceAttribute
 from .parents import DatabaseObject
-from ..utils import string_processing
 
 
 class Collection:
     """
-    This an class for the iterables
+    This a class for the iterables
     like tracklist or discography
     """
-    _data: List[SourceAttribute]
+    _data: List[DatabaseObject]
 
     _by_url: dict
     _by_attribute: dict

src/music_kraken/objects/parents.py

@@ -1,3 +1,4 @@
+from collections import defaultdict
 from typing import Optional, Dict, Type, Tuple, List
 import uuid
 
@@ -24,6 +25,23 @@ class DatabaseObject:
 
         self.dynamic = dynamic
 
+    def __eq__(self, other) -> bool:
+        if not isinstance(other, type(self)):
+            return False
+
+        temp_attribute_map: Dict[str, set] = defaultdict(set)
+
+        # building map with sets
+        for name, value in self.indexing_values:
+            temp_attribute_map[name].add(value)
+
+        # check against the attributes of the other object
+        for name, other_value in other.indexing_values:
+            if other_value in temp_attribute_map[name]:
+                return True
+
+        return False
+        
     @property
     def indexing_values(self) -> List[Tuple[str, object]]:
         """