Files
SQLBot/backend/apps/datasource/embedding/ds_embedding.py
T

92 lines
4.0 KiB
Python

# Author: Junjun
# Date: 2025/9/18
import json
import time
import traceback
from typing import Optional
from apps.ai_model.embedding import EmbeddingModelCache
from apps.datasource.embedding.utils import cosine_similarity
from apps.datasource.models.datasource import CoreDatasource
from apps.system.crud.assistant import AssistantOutDs
from common.core.config import settings
from common.core.deps import CurrentAssistant
from common.core.deps import SessionDep
from common.utils.utils import SQLBotLogUtil
def get_ds_embedding(session: SessionDep, _ds_list, out_ds: AssistantOutDs,
question: str,
current_assistant: Optional[CurrentAssistant] = None):
_list = []
if current_assistant and current_assistant.type == 1:
if out_ds.ds_list:
for _ds in out_ds.ds_list:
ds = out_ds.get_ds(_ds.id)
table_schema, tables = out_ds.get_db_schema(_ds.id, question, embedding=False)
ds_info = f"{ds.name}, {ds.description}\n"
ds_schema = ds_info + table_schema
_list.append({"id": ds.id, "ds_schema": ds_schema, "cosine_similarity": 0.0, "ds": ds})
if _list:
try:
text = [s.get('ds_schema') for s in _list]
model = EmbeddingModelCache.get_model()
results = model.embed_documents(text)
q_embedding = model.embed_query(question)
for index in range(len(results)):
item = results[index]
_list[index]['cosine_similarity'] = cosine_similarity(q_embedding, item)
_list.sort(key=lambda x: x['cosine_similarity'], reverse=True)
# print(len(_list))
_list = _list[:settings.DS_EMBEDDING_COUNT]
SQLBotLogUtil.info(json.dumps(
[{"id": ele.get("id"), "name": ele.get("ds").name,
"cosine_similarity": ele.get("cosine_similarity")}
for ele in _list]))
return [{"id": obj.get('ds').id, "name": obj.get('ds').name, "description": obj.get('ds').description}
for obj in _list]
except Exception:
traceback.print_exc()
else:
for _ds in _ds_list:
if _ds.get('id'):
ds = session.get(CoreDatasource, _ds.get('id'))
# table_schema = get_table_schema(session, current_user, ds, question, embedding=False)
# ds_info = f"{ds.name}, {ds.description}\n"
# ds_schema = ds_info + table_schema
_list.append({"id": ds.id, "cosine_similarity": 0.0, "ds": ds, "embedding": ds.embedding})
if _list:
try:
# text = [s.get('ds_schema') for s in _list]
model = EmbeddingModelCache.get_model()
start_time = time.time()
# results = model.embed_documents(text)
results = [item.get('embedding') for item in _list]
q_embedding = model.embed_query(question)
for index in range(len(results)):
item = results[index]
if item:
_list[index]['cosine_similarity'] = cosine_similarity(q_embedding, json.loads(item))
_list.sort(key=lambda x: x['cosine_similarity'], reverse=True)
# print(len(_list))
end_time = time.time()
SQLBotLogUtil.info(str(end_time - start_time))
_list = _list[:settings.DS_EMBEDDING_COUNT]
SQLBotLogUtil.info(json.dumps(
[{"id": ele.get("id"), "name": ele.get("ds").name,
"cosine_similarity": ele.get("cosine_similarity")}
for ele in _list]))
return [{"id": obj.get('ds').id, "name": obj.get('ds').name, "description": obj.get('ds').description}
for obj in _list]
except Exception:
traceback.print_exc()
return _list