how to convert the SQL Query (Beta) output from text to message, then input to the LLM or chat output

[gutiejun]

when using the SQL Query (Beta) connect to the database, the send the result to the LLM input or Chat output. but the SQL query output is text, and LLM input is message input. it cannot connect. so how can connect it ?
thanks!

[dosubot]

Hello @gutiejun! I'm Dosu, here to help you with bugs, answer your questions, and guide you in becoming a contributor. I'll assist you while you wait for a human maintainer.

To convert the SQL Query (Beta) output from text to a message input for the LLM or chat components in Langflow, you can create a custom component to handle this transformation. Here's a general approach:

1. Create a Custom Component: Define a custom component that takes the text output from the SQL Query and converts it into a MessageInput object. You can use the MessageTextInput for receiving the text and then construct a Message object with the necessary details.

2. Define Inputs and Outputs: In your custom component, define the input as a MessageTextInput and the output as a Message object. This setup allows Langflow to handle the conversion and pass the message to the LLM or chat component.

3. Implement the Conversion Logic: In the component's processing method, take the text input, create a Message object, and populate it with the text and any additional metadata required by the LLM or chat component.

For more detailed guidance, you can refer to the TextAnalyzerComponent example in the Langflow documentation, which demonstrates how to set up inputs and outputs for custom components ^[1].

Additionally, there are test cases in the Langflow repository that demonstrate converting text to a message input, which might be helpful as a reference ^[2].

To continue talking to Dosu, mention @dosu.

---

^{Help Dosu learn! Give it feedback: Great Response | Irrelevant Answer | Incorrect Sources | Too Verbose | Hallucination | Bug Report | Other}

[gutiejun]

hi @dosu, thanks, I only now only green hand. can you give me the sample code for convert text to message. because I think MessageTextInput is the message object type , I don't know how to define it as text input type and the Message object including the detail .

[dosubot]

To convert text to a message and define a MessageTextInput as a text input type, you can use the following sample code:

from langflow.base.io.text import TextComponent
from langflow.schema.message import Message
from langflow.inputs.inputs import MessageTextInput

# Define a TextInputComponent
class TextInputComponent(TextComponent):
    display_name = "Text Input"
    description = "Get text inputs from the Playground."
    icon = "type"
    name = "TextInput"

    inputs = [
        MessageTextInput(
            name="input_value",
            display_name="Text",
            info="Text to be passed as input.",
        ),
    ]

    def text_response(self) -> Message:
        return Message(
            text=self.input_value,
        )

# Example usage
text_input_component = TextInputComponent()
text_input_component.input_value = "Sample text"
message = text_input_component.text_response()

This code snippet defines a TextInputComponent and creates a Message object using the input text. The TextInputComponent uses MessageTextInput from the langflow.inputs.inputs module, which handles text inputs and validates them as Message objects ^[1].

To continue talking to Dosu, mention @dosu.

---

^{Help Dosu learn! Give it feedback: Great Response | Irrelevant Answer | Incorrect Sources | Too Verbose | Hallucination | Bug Report | Other}

[lovelyscientist]

Please refer to my answer here #7533 (comment)