Added mulit id filters support for all vectorstores (#3269)

mem0/vector_stores/chroma.py

@@ -142,7 +142,8 @@ class ChromaDB(VectorStoreBase):
         Returns:
             List[OutputData]: Search results.
         """
-        results = self.collection.query(query_embeddings=vectors, where=filters, n_results=limit)
+        where_clause = self._generate_where_clause(filters) if filters else None
+        results = self.collection.query(query_embeddings=vectors, where=where_clause, n_results=limit)
         final_results = self._parse_output(results)
         return final_results
 
@@ -219,7 +220,8 @@ class ChromaDB(VectorStoreBase):
         Returns:
             List[OutputData]: List of vectors.
         """
-        results = self.collection.get(where=filters, limit=limit)
+        where_clause = self._generate_where_clause(filters) if filters else None
+        results = self.collection.get(where=where_clause, limit=limit)
         return [self._parse_output(results)]
 
     def reset(self):
@@ -227,3 +229,26 @@ class ChromaDB(VectorStoreBase):
         logger.warning(f"Resetting index {self.collection_name}...")
         self.delete_col()
         self.collection = self.create_col(self.collection_name)
+
+    @staticmethod
+    def _generate_where_clause(where: dict[str, any]) -> dict[str, any]:
+        """
+        Generate a properly formatted where clause for ChromaDB.
+        
+        Args:
+            where (dict[str, any]): The filter conditions.
+            
+        Returns:
+            dict[str, any]: Properly formatted where clause for ChromaDB.
+        """
+        # If only one filter is supplied, return it as is
+        # (no need to wrap in $and based on chroma docs)
+        if where is None:
+            return {}
+        if len(where.keys()) <= 1:
+            return where
+        where_filters = []
+        for k, v in where.items():
+            if isinstance(v, str):
+                where_filters.append({k: v})
+        return {"$and": where_filters}