feat: implemented push to

music_kraken/objects/collection.py

@@ -36,6 +36,8 @@ class Collection(Generic[T]):
         self.append_object_to_attribute: Dict[str, T] = append_object_to_attribute or {}
         self.extend_object_to_attribute: Dict[str, Collection[T]] = extend_object_to_attribute or {}
         self.sync_on_append: Dict[str, Collection] = sync_on_append or {}
+        self.pull_from: List[Collection] = []
+        self.push_to: List[Collection] = []
 
         self._id_to_index_values: Dict[int, set] = defaultdict(set)
         
@@ -79,11 +81,16 @@ class Collection(Generic[T]):
             self._map_element(e)
 
     def _find_object(self, __object: T) -> Optional[T]:
+        for c in self.push_to:
+            found = c._find_object(__object)
+            if found is not None:
+                return found, c    
+
         self._remap()
 
         for name, value in __object.indexing_values:
             if value in self._indexed_values[name]:
-                return self._indexed_values[name][value]
+                return self._indexed_values[name][value], self
 
     def append(self, __object: Optional[T], **kwargs):
         """
@@ -98,7 +105,7 @@ class Collection(Generic[T]):
         if __object is None:
             return
 
-        existing_object = self._find_object(__object)
+        existing_object, map_to = self._find_object(__object)
 
         if existing_object is None:
             # append
@@ -133,8 +140,6 @@ class Collection(Generic[T]):
                     synced_with.__setattr__(key, a)
                     a._collection_for[synced_with] = key
 
-                    print(synced_with, key)
-
                 a.extend(b_data, **kwargs)
             
         else:
@@ -143,7 +148,7 @@ class Collection(Generic[T]):
                 return
 
             existing_object.merge(__object, **kwargs)
-            self._map_element(existing_object)         
+            map_to._map_element(existing_object)         
 
     def contains(self, __object: T) -> bool:
         return self._find_object(__object) is not None

music_kraken/objects/song.py

@@ -143,6 +143,8 @@ class Song(Base):
             "feature_song_collection": self
         }
 
+        self.feature_artist_collection.push_to = [self.main_artist_collection]
+
     def _add_other_db_objects(self, object_type: Type[OuterProxy], object_list: List[OuterProxy]):
         if object_type is Song:
             return