feat: upgrade langchain (#430)
Co-authored-by: jyong <718720800@qq.com>
This commit is contained in:
John Wang
369
api/core/data_loader/loader/notion.py
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369
api/core/data_loader/loader/notion.py
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import json
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import logging
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from typing import List, Dict, Any, Optional
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import requests
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from flask import current_app
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from langchain.document_loaders.base import BaseLoader
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from langchain.schema import Document
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from extensions.ext_database import db
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from models.dataset import Document as DocumentModel
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from models.source import DataSourceBinding
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logger = logging.getLogger(__name__)
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BLOCK_CHILD_URL_TMPL = "https://api.notion.com/v1/blocks/{block_id}/children"
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DATABASE_URL_TMPL = "https://api.notion.com/v1/databases/{database_id}/query"
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SEARCH_URL = "https://api.notion.com/v1/search"
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RETRIEVE_PAGE_URL_TMPL = "https://api.notion.com/v1/pages/{page_id}"
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RETRIEVE_DATABASE_URL_TMPL = "https://api.notion.com/v1/databases/{database_id}"
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HEADING_TYPE = ['heading_1', 'heading_2', 'heading_3']
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class NotionLoader(BaseLoader):
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def __init__(
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self,
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notion_access_token: str,
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notion_workspace_id: str,
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notion_obj_id: str,
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notion_page_type: str,
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document_model: Optional[DocumentModel] = None
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):
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self._document_model = document_model
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self._notion_workspace_id = notion_workspace_id
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self._notion_obj_id = notion_obj_id
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self._notion_page_type = notion_page_type
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self._notion_access_token = notion_access_token
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if not self._notion_access_token:
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integration_token = current_app.config.get('NOTION_INTEGRATION_TOKEN')
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if integration_token is None:
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raise ValueError(
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"Must specify `integration_token` or set environment "
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"variable `NOTION_INTEGRATION_TOKEN`."
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)
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self._notion_access_token = integration_token
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@classmethod
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def from_document(cls, document_model: DocumentModel):
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data_source_info = document_model.data_source_info_dict
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if not data_source_info or 'notion_page_id' not in data_source_info \
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or 'notion_workspace_id' not in data_source_info:
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raise ValueError("no notion page found")
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notion_workspace_id = data_source_info['notion_workspace_id']
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notion_obj_id = data_source_info['notion_page_id']
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notion_page_type = data_source_info['type']
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notion_access_token = cls._get_access_token(document_model.tenant_id, notion_workspace_id)
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return cls(
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notion_access_token=notion_access_token,
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notion_workspace_id=notion_workspace_id,
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notion_obj_id=notion_obj_id,
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notion_page_type=notion_page_type,
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document_model=document_model
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)
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def load(self) -> List[Document]:
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self.update_last_edited_time(
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self._document_model
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)
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text_docs = self._load_data_as_documents(self._notion_obj_id, self._notion_page_type)
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return text_docs
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def _load_data_as_documents(
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self, notion_obj_id: str, notion_page_type: str
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) -> List[Document]:
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docs = []
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if notion_page_type == 'database':
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# get all the pages in the database
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page_text = self._get_notion_database_data(notion_obj_id)
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docs.append(Document(page_content=page_text))
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elif notion_page_type == 'page':
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page_text_list = self._get_notion_block_data(notion_obj_id)
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for page_text in page_text_list:
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docs.append(Document(page_content=page_text))
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else:
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raise ValueError("notion page type not supported")
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return docs
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def _get_notion_database_data(
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self, database_id: str, query_dict: Dict[str, Any] = {}
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) -> str:
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"""Get all the pages from a Notion database."""
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res = requests.post(
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DATABASE_URL_TMPL.format(database_id=database_id),
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headers={
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"Authorization": "Bearer " + self._notion_access_token,
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"Content-Type": "application/json",
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"Notion-Version": "2022-06-28",
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},
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json=query_dict,
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)
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data = res.json()
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database_content_list = []
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if 'results' not in data or data["results"] is None:
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return ""
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for result in data["results"]:
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properties = result['properties']
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data = {}
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for property_name, property_value in properties.items():
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type = property_value['type']
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if type == 'multi_select':
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value = []
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multi_select_list = property_value[type]
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for multi_select in multi_select_list:
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value.append(multi_select['name'])
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elif type == 'rich_text' or type == 'title':
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if len(property_value[type]) > 0:
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value = property_value[type][0]['plain_text']
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else:
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value = ''
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elif type == 'select' or type == 'status':
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if property_value[type]:
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value = property_value[type]['name']
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else:
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value = ''
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else:
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value = property_value[type]
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data[property_name] = value
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database_content_list.append(json.dumps(data, ensure_ascii=False))
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return "\n\n".join(database_content_list)
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def _get_notion_block_data(self, page_id: str) -> List[str]:
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result_lines_arr = []
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cur_block_id = page_id
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while True:
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block_url = BLOCK_CHILD_URL_TMPL.format(block_id=cur_block_id)
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query_dict: Dict[str, Any] = {}
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res = requests.request(
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"GET",
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block_url,
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headers={
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"Authorization": "Bearer " + self._notion_access_token,
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"Content-Type": "application/json",
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"Notion-Version": "2022-06-28",
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},
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json=query_dict
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)
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data = res.json()
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# current block's heading
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heading = ''
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for result in data["results"]:
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result_type = result["type"]
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result_obj = result[result_type]
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cur_result_text_arr = []
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if result_type == 'table':
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result_block_id = result["id"]
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text = self._read_table_rows(result_block_id)
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text += "\n\n"
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result_lines_arr.append(text)
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else:
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if "rich_text" in result_obj:
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for rich_text in result_obj["rich_text"]:
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# skip if doesn't have text object
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if "text" in rich_text:
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text = rich_text["text"]["content"]
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cur_result_text_arr.append(text)
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if result_type in HEADING_TYPE:
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heading = text
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result_block_id = result["id"]
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has_children = result["has_children"]
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block_type = result["type"]
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if has_children and block_type != 'child_page':
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children_text = self._read_block(
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result_block_id, num_tabs=1
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)
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cur_result_text_arr.append(children_text)
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cur_result_text = "\n".join(cur_result_text_arr)
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cur_result_text += "\n\n"
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if result_type in HEADING_TYPE:
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result_lines_arr.append(cur_result_text)
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else:
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result_lines_arr.append(f'{heading}\n{cur_result_text}')
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if data["next_cursor"] is None:
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break
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else:
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cur_block_id = data["next_cursor"]
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return result_lines_arr
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def _read_block(self, block_id: str, num_tabs: int = 0) -> str:
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"""Read a block."""
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result_lines_arr = []
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cur_block_id = block_id
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while True:
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block_url = BLOCK_CHILD_URL_TMPL.format(block_id=cur_block_id)
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query_dict: Dict[str, Any] = {}
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res = requests.request(
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"GET",
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block_url,
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headers={
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"Authorization": "Bearer " + self._notion_access_token,
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"Content-Type": "application/json",
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"Notion-Version": "2022-06-28",
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},
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json=query_dict
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)
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data = res.json()
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if 'results' not in data or data["results"] is None:
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break
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heading = ''
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for result in data["results"]:
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result_type = result["type"]
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result_obj = result[result_type]
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cur_result_text_arr = []
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if result_type == 'table':
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result_block_id = result["id"]
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text = self._read_table_rows(result_block_id)
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result_lines_arr.append(text)
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else:
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if "rich_text" in result_obj:
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for rich_text in result_obj["rich_text"]:
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# skip if doesn't have text object
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if "text" in rich_text:
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text = rich_text["text"]["content"]
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prefix = "\t" * num_tabs
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cur_result_text_arr.append(prefix + text)
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if result_type in HEADING_TYPE:
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heading = text
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result_block_id = result["id"]
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has_children = result["has_children"]
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block_type = result["type"]
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if has_children and block_type != 'child_page':
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children_text = self._read_block(
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result_block_id, num_tabs=num_tabs + 1
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)
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cur_result_text_arr.append(children_text)
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cur_result_text = "\n".join(cur_result_text_arr)
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if result_type in HEADING_TYPE:
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result_lines_arr.append(cur_result_text)
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else:
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result_lines_arr.append(f'{heading}\n{cur_result_text}')
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if data["next_cursor"] is None:
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break
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else:
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cur_block_id = data["next_cursor"]
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result_lines = "\n".join(result_lines_arr)
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return result_lines
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def _read_table_rows(self, block_id: str) -> str:
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"""Read table rows."""
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done = False
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result_lines_arr = []
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cur_block_id = block_id
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while not done:
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block_url = BLOCK_CHILD_URL_TMPL.format(block_id=cur_block_id)
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query_dict: Dict[str, Any] = {}
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res = requests.request(
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"GET",
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block_url,
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headers={
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"Authorization": "Bearer " + self._notion_access_token,
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"Content-Type": "application/json",
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"Notion-Version": "2022-06-28",
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},
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json=query_dict
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)
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data = res.json()
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# get table headers text
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table_header_cell_texts = []
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tabel_header_cells = data["results"][0]['table_row']['cells']
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for tabel_header_cell in tabel_header_cells:
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if tabel_header_cell:
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for table_header_cell_text in tabel_header_cell:
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text = table_header_cell_text["text"]["content"]
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table_header_cell_texts.append(text)
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# get table columns text and format
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results = data["results"]
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for i in range(len(results) - 1):
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column_texts = []
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tabel_column_cells = data["results"][i + 1]['table_row']['cells']
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for j in range(len(tabel_column_cells)):
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if tabel_column_cells[j]:
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for table_column_cell_text in tabel_column_cells[j]:
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column_text = table_column_cell_text["text"]["content"]
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column_texts.append(f'{table_header_cell_texts[j]}:{column_text}')
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cur_result_text = "\n".join(column_texts)
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result_lines_arr.append(cur_result_text)
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if data["next_cursor"] is None:
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done = True
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break
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else:
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cur_block_id = data["next_cursor"]
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result_lines = "\n".join(result_lines_arr)
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return result_lines
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def update_last_edited_time(self, document_model: DocumentModel):
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if not document_model:
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return
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last_edited_time = self.get_notion_last_edited_time()
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data_source_info = document_model.data_source_info_dict
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data_source_info['last_edited_time'] = last_edited_time
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update_params = {
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DocumentModel.data_source_info: json.dumps(data_source_info)
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}
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DocumentModel.query.filter_by(id=document_model.id).update(update_params)
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db.session.commit()
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def get_notion_last_edited_time(self) -> str:
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obj_id = self._notion_obj_id
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page_type = self._notion_page_type
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if page_type == 'database':
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retrieve_page_url = RETRIEVE_DATABASE_URL_TMPL.format(database_id=obj_id)
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else:
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retrieve_page_url = RETRIEVE_PAGE_URL_TMPL.format(page_id=obj_id)
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query_dict: Dict[str, Any] = {}
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res = requests.request(
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"GET",
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retrieve_page_url,
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headers={
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"Authorization": "Bearer " + self._notion_access_token,
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"Content-Type": "application/json",
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"Notion-Version": "2022-06-28",
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},
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json=query_dict
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)
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data = res.json()
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return data["last_edited_time"]
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@classmethod
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def _get_access_token(cls, tenant_id: str, notion_workspace_id: str) -> str:
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data_source_binding = DataSourceBinding.query.filter(
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db.and_(
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DataSourceBinding.tenant_id == tenant_id,
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DataSourceBinding.provider == 'notion',
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DataSourceBinding.disabled == False,
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DataSourceBinding.source_info['workspace_id'] == f'"{notion_workspace_id}"'
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)
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).first()
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if not data_source_binding:
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raise Exception(f'No notion data source binding found for tenant {tenant_id} '
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f'and notion workspace {notion_workspace_id}')
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return data_source_binding.access_token
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Block a user