chore: adopt StrEnum and auto() for some string-typed enums (#25129)

Co-authored-by: autofix-ci[bot] <114827586+autofix-ci[bot]@users.noreply.github.com>
Co-authored-by: crazywoola <100913391+crazywoola@users.noreply.github.com>

api/models/dataset.py

@@ -224,35 +224,35 @@ class Dataset(Base):
             doc_metadata.append(
                 {
                     "id": "built-in",
-                    "name": BuiltInField.document_name.value,
+                    "name": BuiltInField.document_name,
                     "type": "string",
                 }
             )
             doc_metadata.append(
                 {
                     "id": "built-in",
-                    "name": BuiltInField.uploader.value,
+                    "name": BuiltInField.uploader,
                     "type": "string",
                 }
             )
             doc_metadata.append(
                 {
                     "id": "built-in",
-                    "name": BuiltInField.upload_date.value,
+                    "name": BuiltInField.upload_date,
                     "type": "time",
                 }
             )
             doc_metadata.append(
                 {
                     "id": "built-in",
-                    "name": BuiltInField.last_update_date.value,
+                    "name": BuiltInField.last_update_date,
                     "type": "time",
                 }
             )
             doc_metadata.append(
                 {
                     "id": "built-in",
-                    "name": BuiltInField.source.value,
+                    "name": BuiltInField.source,
                     "type": "string",
                 }
             )
@@ -544,7 +544,7 @@ class Document(Base):
                 "id": "built-in",
                 "name": BuiltInField.source,
                 "type": "string",
-                "value": MetadataDataSource[self.data_source_type].value,
+                "value": MetadataDataSource[self.data_source_type],
             }
         )
         return built_in_fields

api/models/model.py

@@ -3,7 +3,7 @@ import re
 import uuid
 from collections.abc import Mapping
 from datetime import datetime
-from enum import Enum, StrEnum
+from enum import StrEnum, auto
 from typing import TYPE_CHECKING, Any, Literal, Optional, cast
 
 from core.plugin.entities.plugin import GenericProviderID
@@ -62,9 +62,9 @@ class AppMode(StrEnum):
         raise ValueError(f"invalid mode value {value}")
 
 
-class IconType(Enum):
-    IMAGE = "image"
-    EMOJI = "emoji"
+class IconType(StrEnum):
+    IMAGE = auto()
+    EMOJI = auto()
 
 
 class App(Base):
@@ -149,15 +149,15 @@ class App(Base):
         if app_model_config.agent_mode_dict.get("enabled", False) and app_model_config.agent_mode_dict.get(
             "strategy", ""
         ) in {"function_call", "react"}:
-            self.mode = AppMode.AGENT_CHAT.value
+            self.mode = AppMode.AGENT_CHAT
             db.session.commit()
             return True
         return False
 
     @property
     def mode_compatible_with_agent(self) -> str:
-        if self.mode == AppMode.CHAT.value and self.is_agent:
-            return AppMode.AGENT_CHAT.value
+        if self.mode == AppMode.CHAT and self.is_agent:
+            return AppMode.AGENT_CHAT
 
         return str(self.mode)
 
@@ -713,7 +713,7 @@ class Conversation(Base):
         model_config = {}
         app_model_config: Optional[AppModelConfig] = None
 
-        if self.mode == AppMode.ADVANCED_CHAT.value:
+        if self.mode == AppMode.ADVANCED_CHAT:
             if self.override_model_configs:
                 override_model_configs = json.loads(self.override_model_configs)
                 model_config = override_model_configs

api/models/provider.py

@@ -1,5 +1,5 @@
 from datetime import datetime
-from enum import Enum
+from enum import StrEnum, auto
 from functools import cached_property
 from typing import Optional
 
@@ -12,9 +12,9 @@ from .engine import db
 from .types import StringUUID
 
 
-class ProviderType(Enum):
-    CUSTOM = "custom"
-    SYSTEM = "system"
+class ProviderType(StrEnum):
+    CUSTOM = auto()
+    SYSTEM = auto()
 
     @staticmethod
     def value_of(value: str) -> "ProviderType":
@@ -24,14 +24,14 @@ class ProviderType(Enum):
         raise ValueError(f"No matching enum found for value '{value}'")
 
 
-class ProviderQuotaType(Enum):
-    PAID = "paid"
+class ProviderQuotaType(StrEnum):
+    PAID = auto()
     """hosted paid quota"""
 
-    FREE = "free"
+    FREE = auto()
     """third-party free quota"""
 
-    TRIAL = "trial"
+    TRIAL = auto()
     """hosted trial quota"""
 
     @staticmethod

api/models/workflow.py

@@ -2,7 +2,7 @@ import json
 import logging
 from collections.abc import Mapping, Sequence
 from datetime import datetime
-from enum import Enum, StrEnum
+from enum import StrEnum, auto
 from typing import TYPE_CHECKING, Any, Optional, Union, cast
 from uuid import uuid4
 
@@ -41,13 +41,13 @@ from .types import EnumText, StringUUID
 logger = logging.getLogger(__name__)
 
 
-class WorkflowType(Enum):
+class WorkflowType(StrEnum):
     """
     Workflow Type Enum
     """
 
-    WORKFLOW = "workflow"
-    CHAT = "chat"
+    WORKFLOW = auto()
+    CHAT = auto()
 
     @classmethod
     def value_of(cls, value: str) -> "WorkflowType":
@@ -777,7 +777,7 @@ class WorkflowNodeExecutionModel(Base):
         return extras
 
 
-class WorkflowAppLogCreatedFrom(Enum):
+class WorkflowAppLogCreatedFrom(StrEnum):
     """
     Workflow App Log Created From Enum
     """