Langchain-Chatchat/server/db/repository/knowledge_base_repository.py

43 lines
1.2 KiB
Python

from server.db.models.knowledge_base_model import KnowledgeBaseModel
from server.db.session import with_session
@with_session
def add_kb_to_db(session, kb_name, vs_type, embed_model):
# 创建知识库实例
kb = KnowledgeBaseModel(kb_name=kb_name, vs_type=vs_type, embed_model=embed_model)
session.add(kb)
return True
@with_session
def list_kbs_from_db(session):
kbs = session.query(KnowledgeBaseModel.kb_name).filter(KnowledgeBaseModel.file_count > 0).all()
kbs = [kb[0] for kb in kbs]
return kbs
@with_session
def kb_exists(session, kb_name):
kb = session.query(KnowledgeBaseModel).filter_by(kb_name=kb_name).first()
status = True if kb else False
return status
@with_session
def load_kb_from_db(session, kb_name):
kb = session.query(KnowledgeBaseModel).filter_by(kb_name=kb_name).first()
if kb:
kb_name, vs_type, embed_model = kb.kb_name, kb.vs_type, kb.embed_model
else:
kb_name, vs_type, embed_model = None, None, None
return kb_name, vs_type, embed_model
@with_session
def delete_kb_from_db(session, kb_name):
kb = session.query(KnowledgeBaseModel).filter_by(kb_name=kb_name).first()
if kb:
session.delete(kb)
return True