chore: Refactor TextInput class to improve value validation

src/backend/base/langflow/inputs/inputs.py

@@ -43,29 +43,29 @@ class StrInput(BaseInputMixin, ListableInputMixin, DatabaseLoadMixin):  # noqa:
 class TextInput(StrInput):
     input_types: list[str] = ["Data", "Message", "Text"]
 
-    # @field_validator("value")
+    @field_validator("value")
-    # @classmethod
+    @classmethod
-    # def validate_value(cls, v: Any, _info):
+    def validate_value(cls, v: Any, _info):
-    #     value = None
+        value = None
-    #     if isinstance(v, str):
+        if isinstance(v, str):
-    #         value = v
+            value = v
-    #     elif isinstance(v, Message):
+        elif isinstance(v, Message):
-    #         value = v.text
+            value = v.text
-    #     elif isinstance(v, Data):
+        elif isinstance(v, Data):
-    #         if v.text_key in v.data:
+            if v.text_key in v.data:
-    #             value = v.data[v.text_key]
+                value = v.data[v.text_key]
-    #         else:
+            else:
-    #             keys = ", ".join(v.data.keys())
+                keys = ", ".join(v.data.keys())
-    #             input_name = _info.data["name"]
+                input_name = _info.data["name"]
-    #             raise ValueError(
+                raise ValueError(
-    #                 f"The input to '{input_name}' must contain the key '{v.text_key}'."
+                    f"The input to '{input_name}' must contain the key '{v.text_key}'."
-    #                 f"You can set `text_key` to one of the following keys: {keys} or set the value using another Component."
+                    f"You can set `text_key` to one of the following keys: {keys} or set the value using another Component."
-    #             )
+                )
-    #     else:
+        else:
-    #         raise ValueError(f"Invalid input type {type(v)}")
+            raise ValueError(f"Invalid input type {type(v)}")
-    #     if isinstance(value, str):
+        if isinstance(value, str):
-    #         return value
+            return value
-    #     raise ValueError(f"Invalid value type {type(value)}")
+        raise ValueError(f"Invalid value type {type(value)}")
 
 
 class MultilineInput(BaseInputMixin):