[enhancement]: Prompt Template workflow node

[brpeterman]

Is there an existing issue for this?

• I have searched the existing issues

Contact Details

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What should this feature add?

Prompt Templates are data structures that store a positive prompt, a negative prompt, and placeholders for additional prompts in each. They're very useful in Generate mode, but not accessible in Workflow mode.

A new node type that exposes Prompt Templates would be useful.

Inputs:

• Positive Prompt (StringField)
• Negative Prompt (StringField)

Outputs:

• Positive Prompt (StringField)
• Negative Prompt (StringField)

Behavior:

• Replaces the {prompt} in the template prompts with their corresponding inputs.

Additional requirements:

• We'd also need a selection input that lists Prompt Templates so the user can select which one they want to use.

Example using the Line Art template:

1. Line Art has the following prompts:
   • Positive: {prompt} Line art. bold outline. simplistic. white background. 2d
   • Negative: {prompt} photo. digital art. greyscale. solid black. painting
2. I place a Prompt Template node in my workflow.
3. I select the Line Art template.
4. I create a StringField primitive for the positive prompt and set its value to car.
5. I link the positive prompt primitive to the Positive Prompt input of the prompt template node.
6. I create a StringField primitive for the negative prompt and set its value to person.
7. I link the negative prompt primitive to the Negative Prompt input of the prompt template node.
8. I expect the following outputs:
   • Positive prompt: car Line art. bold outline. simplistic. white background. 2d
   • Negative prompt: person photo. digital art. greyscale. solid black. painting

Alternatives

Currently I work around this by just copying my positive and negative prompts from a prompt template into StringFields. It works fine, but requires a lot of clicks and copying.

Additional Content

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