refactor(api/core/app/app_config/entities.py): Move Type to outside and add EXTERNAL_DATA_TOOL. (#7444)

api/core/app/app_config/entities.py

@@ -82,43 +82,29 @@ class PromptTemplateEntity(BaseModel):
     advanced_completion_prompt_template: Optional[AdvancedCompletionPromptTemplateEntity] = None
 
 
+class VariableEntityType(str, Enum):
+    TEXT_INPUT = "text-input"
+    SELECT = "select"
+    PARAGRAPH = "paragraph"
+    NUMBER = "number"
+    EXTERNAL_DATA_TOOL = "external-data-tool"
+
+
 class VariableEntity(BaseModel):
     """
     Variable Entity.
     """
-    class Type(Enum):
-        TEXT_INPUT = 'text-input'
-        SELECT = 'select'
-        PARAGRAPH = 'paragraph'
-        NUMBER = 'number'
-
-        @classmethod
-        def value_of(cls, value: str) -> 'VariableEntity.Type':
-            """
-            Get value of given mode.
-
-            :param value: mode value
-            :return: mode
-            """
-            for mode in cls:
-                if mode.value == value:
-                    return mode
-            raise ValueError(f'invalid variable type value {value}')
 
     variable: str
     label: str
     description: Optional[str] = None
-    type: Type
+    type: VariableEntityType
     required: bool = False
     max_length: Optional[int] = None
     options: Optional[list[str]] = None
     default: Optional[str] = None
     hint: Optional[str] = None
 
-    @property
-    def name(self) -> str:
-        return self.variable
-
 
 class ExternalDataVariableEntity(BaseModel):
     """
@@ -252,4 +238,4 @@ class WorkflowUIBasedAppConfig(AppConfig):
     """
     Workflow UI Based App Config Entity.
     """
-    workflow_id: str
+    workflow_id: str