Error when using numbers in startnode with OpenAI moderation

[AndyMik90]

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Dify version

0.6.8

Cloud or Self Hosted

Self Hosted (Docker), Self Hosted (Source)

Steps to reproduce

If you use the "number" input field for a start node and have the open moderation functionality enabled. you get error "TypeError: sequence item 3: expected str instance, int found"

✔️ Expected Behavior

Run the workflow

❌ Actual Behavior

Seems that the function:

def _is_violated(self, inputs: dict):
        text = '\n'.join(inputs.values())
        model_manager = ModelManager()
        model_instance = model_manager.get_model_instance(
            tenant_id=self.tenant_id,
            provider="openai",
            model_type=ModelType.MODERATION,
            model="text-moderation-stable"
        )

        openai_moderation = model_instance.invoke_moderation(
            text=text
        )

        return openai_moderation

in api/core/moderation/openai_moderation/openapi_moderation.py is throwing the error because it expects string when the number input is int.

[dosubot[bot]]

The error you're encountering is due to the inputs dictionary containing non-string values, and the join method expects all items to be strings. To resolve this issue, you need to ensure that all values in the inputs dictionary are converted to strings before joining them.

Here's how you can modify the _is_violated function to handle this:

def _is_violated(self, inputs: dict):
    # Convert all input values to strings
    text = '\n'.join(str(value) for value in inputs.values())
    model_manager = ModelManager()
    model_instance = model_manager.get_model_instance(
        tenant_id=self.tenant_id,
        provider="openai",
        model_type=ModelType.MODERATION,
        model="text-moderation-stable"
    )

    openai_moderation = model_instance.invoke_moderation(
        text=text
    )

    return openai_moderation

This modification ensures that all values in the inputs dictionary are converted to strings before they are joined, preventing the TypeError from occurring.

Details

Sources

• api/core/workflow/nodes/start/start_node.py
• api/core/model_manager.py
• en/features/workflow/node/question-classifier.md
• en/features/workflow/nodes/question-classifier.md
• web/app/components/workflow/constants.ts
• en/features/moderation_tool.md
• zh_CN/guides/application-design/moderation-tool.md
• api/tests/integration_tests/model_runtime/openai/test_moderation.py
• api/core/model_runtime/model_providers/openai/moderation/moderation.py
• api/tests/integration_tests/model_runtime/__mock/openai_moderation.py
• web/app/components/workflow/types.ts
• web/app/components/base/chat/types.ts
• web/app/components/workflow/nodes/_base/hooks/use-one-step-run.ts
• en/features/extension/api_based_extension/moderation-extension.md
• api/config.py
• en/getting-started/install-self-hosted/environments.md

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