Bonsai Design System

Form

Form wrapper for react-hook-form with automatic validation messages

Usage

import { zodResolver } from "@hookform/resolvers/zod"
import { useForm } from "react-hook-form"
import { z } from "zod"
import { Button } from "@/components/ui/button"
import { Input } from "@/components/ui/input"
import {
  Form,
  FormField,
  FormItem,
  FormLabel,
  FormControl,
  FormDescription,
  FormMessage,
} from "@/components/ui/form"

const formSchema = z.object({
  name: z.string().min(2, "Name must be at least 2 characters"),
  email: z.string().email("Invalid email address"),
})

function ProfileForm() {
  const form = useForm<z.infer<typeof formSchema>>({
    resolver: zodResolver(formSchema),
    defaultValues: { name: "", email: "" },
  })

  function onSubmit(values: z.infer<typeof formSchema>) {
    console.log(values)
  }

  return (
    <Form {...form}>
      <form onSubmit={form.handleSubmit(onSubmit)} className="space-y-4">
        <FormField
          control={form.control}
          name="name"
          render={({ field }) => (
            <FormItem>
              <FormLabel>Name</FormLabel>
              <FormControl>
                <Input placeholder="John Doe" {...field} />
              </FormControl>
              <FormDescription>Your display name.</FormDescription>
              <FormMessage />
            </FormItem>
          )}
        />
        <FormField
          control={form.control}
          name="email"
          render={({ field }) => (
            <FormItem>
              <FormLabel>Email</FormLabel>
              <FormControl>
                <Input placeholder="john@example.com" {...field} />
              </FormControl>
              <FormMessage />
            </FormItem>
          )}
        />
        <Button type="submit">Save</Button>
      </form>
    </Form>
  )
}

FormMessage automatically renders the validation error from react-hook-form. FormControl connects the input to the field via aria-describedby and aria-invalid.

Install

npx shadcn add @bonsai/form

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