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adding param and return types (#1689)

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This commit is contained in:
dbcontributions
2024-08-14 01:16:55 +05:30
committed by GitHub
parent 64218db7bd
commit a461091ba5
2 changed files with 82 additions and 76 deletions
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101
mem0/vector_stores/chroma.py
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@@ -1,5 +1,5 @@
import logging
from typing import Optional
from typing import Optional, List, Dict
from pydantic import BaseModel
@@ -15,26 +15,27 @@ from mem0.vector_stores.base import VectorStoreBase
class OutputData(BaseModel):
id: Optional[str] # memory id
score: Optional[float] # distance
payload: Optional[dict] # metadata
payload: Optional[Dict] # metadata
class ChromaDB(VectorStoreBase):
def __init__(
self,
collection_name,
client,
host,
port,
path
collection_name: str,
client: Optional[chromadb.Client] = None,
host: Optional[str] = None,
port: Optional[int] = None,
path: Optional[str] = None
):
"""
Initialize the Chromadb vector store.
Args:
client (chromadb.Client, optional): Existing chromadb client instance.
host (str, optional): Host address for chromadb server.
port (int, optional): Port for chromadb server.
path (str, optional): Path for local chromadb database.
collection_name (str): Name of the collection.
client (chromadb.Client, optional): Existing chromadb client instance. Defaults to None.
host (str, optional): Host address for chromadb server. Defaults to None.
port (int, optional): Port for chromadb server. Defaults to None.
path (str, optional): Path for local chromadb database. Defaults to None.
"""
if client:
self.client = client
@@ -57,15 +58,15 @@ class ChromaDB(VectorStoreBase):
self.collection_name = collection_name
self.collection = self.create_col(collection_name)
def _parse_output(self, data):
def _parse_output(self, data: Dict) -> List[OutputData]:
"""
Parse the output data.
Args:
data (dict): Output data.
data (Dict): Output data.
Returns:
list: Parsed output data.
List[OutputData]: Parsed output data.
"""
keys = ['ids', 'distances', 'metadatas']
values = []
@@ -82,21 +83,24 @@ class ChromaDB(VectorStoreBase):
result = []
for i in range(max_length):
entry = OutputData(
id=ids[i] if isinstance(ids, list) and ids and i < len(ids) else None,
score=distances[i] if isinstance(distances, list) and distances and i < len(distances) else None,
payload=metadatas[i] if isinstance(metadatas, list) and metadatas and i < len(metadatas) else None,
)
id=ids[i] if isinstance(ids, list) and ids and i < len(ids) else None,
score=distances[i] if isinstance(distances, list) and distances and i < len(distances) else None,
payload=metadatas[i] if isinstance(metadatas, list) and metadatas and i < len(metadatas) else None,
)
result.append(entry)
return result
def create_col(self, name, embedding_fn=None):
def create_col(self, name: str, embedding_fn: Optional[callable] = None):
"""
Create a new collection.
Args:
name (str): Name of the collection.
embedding_fn (function): Embedding function to use. Defaults to None.
embedding_fn (Optional[callable]): Embedding function to use. Defaults to None.
Returns:
chromadb.Collection: The created or retrieved collection.
"""
# Skip creating collection if already exists
collections = self.list_cols()
@@ -110,102 +114,101 @@ class ChromaDB(VectorStoreBase):
)
return collection
def insert(self, vectors, payloads=None, ids=None):
def insert(self, vectors: List[list], payloads: Optional[List[Dict]] = None, ids: Optional[List[str]] = None):
"""
Insert vectors into a collection.
Args:
vectors (list): List of vectors to insert.
payloads (list, optional): List of payloads corresponding to vectors. Defaults to None.
ids (list, optional): List of IDs corresponding to vectors. Defaults to None.
vectors (List[list]): List of vectors to insert.
payloads (Optional[List[Dict]], optional): List of payloads corresponding to vectors. Defaults to None.
ids (Optional[List[str]], optional): List of IDs corresponding to vectors. Defaults to None.
"""
self.collection.add(ids=ids, embeddings=vectors, metadatas=payloads)
def search(self, query, limit=5, filters=None):
def search(self, query: List[list], limit: int = 5, filters: Optional[Dict] = None) -> List[OutputData]:
"""
Search for similar vectors.
Args:
query (list): Query vector.
query (List[list]): Query vector.
limit (int, optional): Number of results to return. Defaults to 5.
filters (dict, optional): Filters to apply to the search. Defaults to None.
filters (Optional[Dict], optional): Filters to apply to the search. Defaults to None.
Returns:
list: Search results.
List[OutputData]: Search results.
"""
results = self.collection.query(query_embeddings=query, where=filters, n_results=limit)
final_results = self._parse_output(results)
return final_results
def delete(self, vector_id):
def delete(self, vector_id: str):
"""
Delete a vector by ID.
Args:
vector_id (int): ID of the vector to delete.
vector_id (str): ID of the vector to delete.
"""
self.collection.delete(ids=vector_id)
def update(self, vector_id, vector=None, payload=None):
def update(self, vector_id: str, vector: Optional[List[float]] = None, payload: Optional[Dict] = None):
"""
Update a vector and its payload.
Args:
vector_id (int): ID of the vector to update.
vector (list, optional): Updated vector. Defaults to None.
payload (dict, optional): Updated payload. Defaults to None.
vector_id (str): ID of the vector to update.
vector (Optional[List[float]], optional): Updated vector. Defaults to None.
payload (Optional[Dict], optional): Updated payload. Defaults to None.
"""
self.collection.update(ids=vector_id, embeddings=vector, metadatas=payload)
def get(self, vector_id):
def get(self, vector_id: str) -> OutputData:
"""
Retrieve a vector by ID.
Args:
vector_id (int): ID of the vector to retrieve.
vector_id (str): ID of the vector to retrieve.
Returns:
dict: Retrieved vector.
OutputData: Retrieved vector.
"""
result = self.collection.get(ids=[vector_id])
return self._parse_output(result)[0]
def list_cols(self):
def list_cols(self) -> List[chromadb.Collection]:
"""
List all collections.
Returns:
list: List of collection names.
List[chromadb.Collection]: List of collections.
"""
return self.client.list_collections()
def delete_col(self):
""" Delete a collection. """
"""
Delete a collection.
"""
self.client.delete_collection(name=self.collection_name)
def col_info(self):
def col_info(self) -> Dict:
"""
Get information about a collection.
Returns:
dict: Collection information.
Dict: Collection information.
"""
return self.client.get_collection(name=self.collection_name)
def list(self, filters=None, limit=100):
def list(self, filters: Optional[Dict] = None, limit: int = 100) -> List[OutputData]:
"""
List all vectors in a collection.
Args:
filters (dict, optional): Filters to apply to the list.
filters (Optional[Dict], optional): Filters to apply to the list. Defaults to None.
limit (int, optional): Number of vectors to return. Defaults to 100.
Returns:
list: List of vectors.
List[OutputData]: List of vectors.
"""
array = [[0 for _ in range(1536)] for _ in range(1536)]
results = self.collection.query(query_embeddings=array, where=filters, n_results=limit)
return [self._parse_output(results)]
return self._parse_output(results)