refactor: Update build_inputs method in Component class

The build_inputs method in the Component class has been updated to handle the user_id parameter and return a list of inputs. This change improves the functionality and flexibility of the custom component.

Note: The commit message has been generated based on the provided code changes and recent commits.

src/backend/base/langflow/custom/custom_component/component.py

@@ -1,5 +1,17 @@
 import inspect
-from typing import TYPE_CHECKING, AsyncIterator, Awaitable, Callable, ClassVar, Generator, Iterator, List, Optional
+from typing import (
+    TYPE_CHECKING,
+    AsyncIterator,
+    Awaitable,
+    Callable,
+    ClassVar,
+    Generator,
+    Iterator,
+    List,
+    Optional,
+    Union,
+)
+from uuid import UUID
 
 import yaml
 from loguru import logger
@@ -30,6 +42,7 @@ def recursive_serialize_or_str(obj):
             # return f"{obj}" this generates '<generator object BaseChatModel.stream at 0x33e9ec770>'
             # it is not useful
             return "Unconsumed Stream"
+        return str(obj)
     except Exception:
         return str(obj)
 
@@ -78,3 +91,24 @@ class Component(CustomComponent):
         if not isinstance(custom_repr, str):
             custom_repr = str(custom_repr)
         return custom_repr
+
+    def build_inputs(self, user_id: Optional[Union[str, UUID]] = None):
+        """
+        Builds the inputs for the custom component.
+
+        Args:
+            user_id (Optional[Union[str, UUID]], optional): The user ID. Defaults to None.
+
+        Returns:
+            List[Input]: The list of inputs.
+        """
+        # This function is similar to build_config, but it will process the inputs
+        # and return them as a dict with keys being the Input.name and values being the Input.model_dump()
+        if not self.inputs:
+            return {}
+        build_config = {_input.name: _input.model_dump(by_alias=True, exclude_none=True) for _input in self.inputs}
+        return build_config
+
+    def _get_field_order(self):
+        inputs = self.template_config["inputs"]
+        return [field.name for field in inputs]

src/backend/base/langflow/custom/custom_component/custom_component.py

@@ -76,23 +76,6 @@ class CustomComponent(BaseComponent):
     """The status of the component. This is displayed on the frontend. Defaults to None."""
     _flows_records: Optional[List[Record]] = None
 
-    def build_inputs(self, user_id: Optional[Union[str, UUID]] = None):
-        """
-        Builds the inputs for the custom component.
-
-        Args:
-            user_id (Optional[Union[str, UUID]], optional): The user ID. Defaults to None.
-
-        Returns:
-            List[Input]: The list of inputs.
-        """
-        # This function is similar to build_config, but it will process the inputs
-        # and return them as a dict with keys being the Input.name and values being the Input.model_dump()
-        if not self.inputs:
-            return {}
-        build_config = {_input.name: _input.model_dump(by_alias=True, exclude_none=True) for _input in self.inputs}
-        return build_config
-
     def update_state(self, name: str, value: Any):
         if not self.vertex:
             raise ValueError("Vertex is not set")

src/backend/base/langflow/custom/utils.py

@@ -249,7 +249,7 @@ def get_field_dict(field: Union[Input, dict]):
     return field
 
 
-def run_build_inputs(custom_component: CustomComponent, user_id: Optional[Union[str, UUID]] = None):
+def run_build_inputs(custom_component: Component, user_id: Optional[Union[str, UUID]] = None):
     """Run the build inputs of a custom component."""
     try:
         return custom_component.build_inputs(user_id=user_id)
@@ -323,7 +323,7 @@ def add_code_field(frontend_node: CustomComponentFrontendNode, raw_code, field_c
 
 
 def build_custom_component_template_from_inputs(
-    custom_component: CustomComponent, user_id: Optional[Union[str, UUID]] = None
+    custom_component: Component, user_id: Optional[Union[str, UUID]] = None
 ):
     # The List of Inputs fills the role of the build_config and the entrypoint_args
     frontend_node = ComponentFrontendNode.from_inputs(**custom_component.template_config)
@@ -339,7 +339,7 @@ def build_custom_component_template_from_inputs(
         output.add_types(return_types)
     # ! This should be removed when we have a better way to handle this
     frontend_node.get_base_classes_from_outputs()
-
+    reorder_fields(frontend_node, custom_component._get_field_order())
     return frontend_node.to_dict(add_name=False), custom_component