dosubot[bot]
commented
4 weeks ago The issue with the prompt component in Langflow version 1.0.16 not passing the second variable correctly and repeating the first variable is likely due to how the build_prompt method is implemented. The method uses Message.from_template_and_variables(**self._attributes) to create the prompt, but it seems that the variables are not being correctly mapped.
Here is the relevant part of the code:
class PromptComponent(Component):
display_name: str = "Prompt"
description: str = "Create a prompt template with dynamic variables."
icon = "prompts"
trace_type = "prompt"
inputs = [
PromptInput(name="template", display_name="Template"),
]
outputs = [
Output(display_name="Prompt Message", name="prompt", method="build_prompt"),
]
async def build_prompt(
self,
) -> Message:
prompt = await Message.from_template_and_variables(**self._attributes)
self.status = prompt.text
return promptThe problem might be in how self._attributes is populated or how Message.from_template_and_variables processes these attributes. If self._attributes contains duplicate keys or if the method does not correctly distinguish between different variables, it could result in the same variable being used multiple times.
To fix this, ensure that self._attributes correctly maps each variable to its corresponding value and that Message.from_template_and_variables correctly processes these mappings. You might need to debug or modify the from_template_and_variables method to handle multiple variables properly [[1]](https://github.com/langflow-ai/langflow/blob/dev/src/backend/base/langflow/initial_setup/starter_projects/Langflow Prompt Chaining.json).
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edwinjosechittilappilly
Gluepower
Bug Description
I have prompt with two variables. {image_url} Value of image is https://oaidalleapiprodscus.blob.core.windows.net/private/org-N0bzhj17kGCdvkPCuGgpUuhO/user-RwGFQKsTTGw8hOO1ResFbpwQ/img-GH9Zkmf4RabhW48gVeZslvyb.png?st=2024-08-23T19%3A00%3A31Z&se=2024-08-23T21%3A00%3A31Z&sp=r&sv=2024-08-04&sr=b&rscd=inline&rsct=image/png&skoid=d505667d-d6c1-4a0a-bac7-5c84a87759f8&sktid=a48cca56-e6da-484e-a814-9c849652bcb3&skt=2024-08-23T18%3A20%3A28Z&ske=2024-08-24T18%3A20%3A28Z&sks=b&skv=2024-08-04&sig=HXgLmH4hDFvbuV/rPEX//ifP0PLXUUlCYP9ZDpFEAHM%3D {post_id} Value of Post ID is 11620
Prompt is Task: Upload the image from the provided URL to WordPress and set it as the featured image for the specified post. Image URL: {image_url} Post ID: {post_id}
This worked on 1.0.15, but after I upgraded to 1.0.16 the second variable is not passed on, it repeats the image one.
Component output Task: Upload the image from the provided URL to WordPress and set it as the featured image for the specified post. Image URL: https://oaidalleapiprodscus.blob.core.windows.net/private/org-N0bzhj17kGCdvkPCuGgpUuhO/user-RwGFQKsTTGw8hOO1ResFbpwQ/img-GH9Zkmf4RabhW48gVeZslvyb.png?st=2024-08-23T19%3A00%3A31Z&se=2024-08-23T21%3A00%3A31Z&sp=r&sv=2024-08-04&sr=b&rscd=inline&rsct=image/png&skoid=d505667d-d6c1-4a0a-bac7-5c84a87759f8&sktid=a48cca56-e6da-484e-a814-9c849652bcb3&skt=2024-08-23T18%3A20%3A28Z&ske=2024-08-24T18%3A20%3A28Z&sks=b&skv=2024-08-04&sig=HXgLmH4hDFvbuV/rPEX//ifP0PLXUUlCYP9ZDpFEAHM%3D Post ID: https://oaidalleapiprodscus.blob.core.windows.net/private/org-N0bzhj17kGCdvkPCuGgpUuhO/user-RwGFQKsTTGw8hOO1ResFbpwQ/img-GH9Zkmf4RabhW48gVeZslvyb.png?st=2024-08-23T19%3A00%3A31Z&se=2024-08-23T21%3A00%3A31Z&sp=r&sv=2024-08-04&sr=b&rscd=inline&rsct=image/png&skoid=d505667d-d6c1-4a0a-bac7-5c84a87759f8&sktid=a48cca56-e6da-484e-a814-9c849652bcb3&skt=2024-08-23T18%3A20%3A28Z&ske=2024-08-24T18%3A20%3A28Z&sks=b&skv=2024-08-04&sig=HXgLmH4hDFvbuV/rPEX//ifP0PLXUUlCYP9ZDpFEAHM%3D
Reproduction
Create prompt with multiple variables. Add value in each. Try to build prompt and you will find that only first variable is being pulled.
Expected behavior
multiple variables should work
Who can help?
No response
Operating System
Render
Langflow Version
1.0.16
Python Version
3.12
Screenshot
No response
Flow File
No response