Move some constants to common (#11004)

### What problem does this PR solve?

As title.

### Type of change

- [x] Refactoring

---------

Signed-off-by: Jin Hai <haijin.chn@gmail.com>

api/apps/sdk/chat.py

@@ -17,13 +17,12 @@ import logging
 
 from flask import request
 
-from api.db import StatusEnum
 from api.db.services.dialog_service import DialogService
 from api.db.services.knowledgebase_service import KnowledgebaseService
 from api.db.services.tenant_llm_service import TenantLLMService
 from api.db.services.user_service import TenantService
 from common.misc_utils import get_uuid
-from common.constants import RetCode
+from common.constants import RetCode, StatusEnum
 from api.utils.api_utils import check_duplicate_ids, get_error_data_result, get_result, token_required
 
 

api/apps/sdk/dataset.py

@@ -21,14 +21,13 @@ import json
 from flask import request
 from peewee import OperationalError
 from api import settings
-from api.db import FileSource, StatusEnum
 from api.db.db_models import File
 from api.db.services.document_service import DocumentService
 from api.db.services.file2document_service import File2DocumentService
 from api.db.services.file_service import FileService
 from api.db.services.knowledgebase_service import KnowledgebaseService
 from api.db.services.user_service import TenantService
-from common.constants import RetCode
+from common.constants import RetCode, FileSource, StatusEnum
 from api.utils.api_utils import (
     deep_merge,
     get_error_argument_result,

api/apps/sdk/dify_retrieval.py

@@ -17,7 +17,6 @@ import logging
 
 from flask import request, jsonify
 
-from api.db import LLMType
 from api.db.services.document_service import DocumentService
 from api.db.services.knowledgebase_service import KnowledgebaseService
 from api.db.services.llm_service import LLMBundle
@@ -25,7 +24,7 @@ from api import settings
 from api.utils.api_utils import validate_request, build_error_result, apikey_required
 from rag.app.tag import label_question
 from api.db.services.dialog_service import meta_filter, convert_conditions
-from common.constants import RetCode
+from common.constants import RetCode, LLMType
 
 @manager.route('/dify/retrieval', methods=['POST'])  # noqa: F821
 @apikey_required

api/apps/sdk/doc.py

@@ -26,7 +26,7 @@ from pydantic import BaseModel, Field, validator
 
 from api import settings
 from api.constants import FILE_NAME_LEN_LIMIT
-from api.db import FileSource, FileType, LLMType, ParserType, TaskStatus
+from api.db import FileType
 from api.db.db_models import File, Task
 from api.db.services.document_service import DocumentService
 from api.db.services.file2document_service import File2DocumentService
@@ -43,7 +43,7 @@ from rag.nlp import rag_tokenizer, search
 from rag.prompts.generator import cross_languages, keyword_extraction
 from rag.utils.storage_factory import STORAGE_IMPL
 from common.string_utils import remove_redundant_spaces
-from common.constants import RetCode
+from common.constants import RetCode, LLMType, ParserType, TaskStatus, FileSource
 
 MAXIMUM_OF_UPLOADING_FILES = 256
 

api/apps/sdk/session.py

@@ -22,7 +22,6 @@ from flask import Response, jsonify, request
 
 from agent.canvas import Canvas
 from api import settings
-from api.db import LLMType, StatusEnum
 from api.db.db_models import APIToken
 from api.db.services.api_service import API4ConversationService
 from api.db.services.canvas_service import UserCanvasService, completion_openai
@@ -41,7 +40,7 @@ from api.utils.api_utils import check_duplicate_ids, get_data_openai, get_error_
 from rag.app.tag import label_question
 from rag.prompts.template import load_prompt
 from rag.prompts.generator import cross_languages, gen_meta_filter, keyword_extraction, chunks_format
-from common.constants import RetCode
+from common.constants import RetCode, LLMType, StatusEnum
 
 @manager.route("/chats/<chat_id>/sessions", methods=["POST"])  # noqa: F821
 @token_required