Dynamic Forms about huh

[maaslalani]

Just a heads up we're making good progress on dynamic forms. It looks like the API will be mostly allowing any option Title, Description, Option to be "Func"-able, i.e. take a function to populate the field from. It will automatically cache the options if desired as well.

dynamic-forms.mov

[kpym]

You can may be use WithHideFunc to conditionally show some questions. Here is the rewriten example of #75 (with corrected "Carrot" option for "vegetables" 🙂).

package main

import (
	"fmt"

	"github.com/charmbracelet/huh"
)

func main() {

	var (
		category string
		choice   string
	)

	huh.NewForm(
		huh.NewGroup(
			huh.NewSelect[string]().
				Title("What are you in the mood for?").
				Value(&category).
				Options(
					huh.NewOption("Some fruit", "fruits"),
					huh.NewOption("A vegetable", "vegetables"),
					huh.NewOption("A drink", "drinks"),
				),
		),
		huh.NewGroup(
			huh.NewSelect[string]().
				Title("Okay, what kind of fruits are you in the mood for?").
				Value(&choice).
				Options(
					huh.NewOption("Tangerine", "tangerine"),
					huh.NewOption("Canteloupe", "canteloupe"),
					huh.NewOption("Pomelo", "pomelo"),
					huh.NewOption("Grapefruit", "grapefruit"),
				),
		).WithHideFunc(func() bool {
			return category != "fruits"
		}),
		huh.NewGroup(
			huh.NewSelect[string]().
				Title("Okay, what kind of vegetables are you in the mood for?").
				Value(&choice).
				Options(
					huh.NewOption("Carrot", "carrot"),
					huh.NewOption("Jicama", "jicama"),
					huh.NewOption("Kohlrabi", "kohlrabi"),
					huh.NewOption("Fennel", "fennel"),
					huh.NewOption("Ginger", "ginger"),
				),
		).WithHideFunc(func() bool {
			return category != "vegetables"
		}),
		huh.NewGroup(
			huh.NewSelect[string]().
				Title("Okay, what kind of drinks are you in the mood for?").
				Value(&choice).
				Options(
					huh.NewOption("Coffee", "coffee"),
					huh.NewOption("Tea", "tea"),
					huh.NewOption("Bubble Tea", "bubble-tea"),
					huh.NewOption("Agua Fresca", "agua-fresca"),
				),
		).WithHideFunc(func() bool {
			return category != "drinks"
		}),
	).Run()

	fmt.Printf("One %s coming right up!\n", choice)
}

[yann-soubeyrand]

Hello, I’d like to have a group where I can dynamically add/remove input fields with key bindings (like pressing n to add a field and pressing d to remove the current field). Will the work on this issue cover this use case or is it something completely unrelated?

[meowgorithm]

Yep, that's definitely something we'll need to support, which also means we'll probably need a spinner if the func that computes the data runs over a certain time threshold.

[iloveicedgreentea]

Awesome really looking forward to it. I really enjoy working with Huh, it has been great and everyone has been super impressed of the things we used it for

[nilansaha]

I am aware of the example on conditional form but is there any way to populate the options in a group conditionally as well? @maaslalani

[meowgorithm]

Hi! This is something we'd to explore in a more official capacity, but for now you can achieve a similar effect using multiple forms. For an example to help get started see #75.

[tetienne]

Thx for the exemple. So no magic yet here :)

[alinagard]

+1 to this enhancement!!

[iloveicedgreentea]

I would like to extend this request to include external updates such as API calls. I mentioned some details here #183