我正在使用 react-hook-form，我想知道是否可以創建一個使用 react-hook-form 傳遞表單錯誤的組件。
我有以下組件
import { useForm } from "react-hook-form";
import { XIcon } from "@heroicons/react/outline";
export default function ErrorsPopup() {
const {
formState: { errors },
} = useForm({
criteriaMode: "all",
});
return (
<>
{Object.keys(errors).length > 0 && (
<div className="mt-6 text-white bg-red-600 border-4 border-red-700 alert-start">
<div className="flex justify-between items-center bg-red-700 py-2 px-4">
<div>
<p>The following errors have occurred:</p>
</div>
<div className="cursor-pointer">
<XIcon className="h-6 w-6 text-white alert-close" />
</div>
</div>
<div className="py-2 px-4">
<div className="flex flex-col gap-2">
{Object.entries(errors).map(([index, error]) => (
<div className="flex flex-col gap-y-6 sm:gap-x-8" key={index}>
<p>• {error.message}</p>
</div>
))}
</div>
</div>
</div>
)}
</>
);
}
我已將此添加到以下頁面
import { useState } from "react";
import Head from "next/head";
import Link from "next/link";
import Image from "next/image";
import Background from "../../../public/images/option1.png";
import Router from "next/router";
import { signIn } from "next-auth/client";
import { useForm } from "react-hook-form";
import { SaveIcon } from "@heroicons/react/outline";
import ErrorsPopup from "../../components/ErrorsPopup";
export default function Login() {
const { register, handleSubmit } = useForm();
const [email, setEmail] = useState("");
const [password, setPassword] = useState("");
const onSubmit = async () => {
await signIn("credentials", {
redirect: false,
email: email,
password: password,
});
Router.push("/dashboard");
};
return (
<>
<Head>
<title>Ellis Development - Login</title>
</Head>
<div className="relative">
<div className="md:flex">
{/* Image */}
<div className="flex items-center justify-center bg-blue-700 h-screen lg:w-96">
<Image src={Background} width={350} height={350} layout="fixed" />
</div>
{/* Contact form */}
<div className="flex flex-col justify-center py-10 px-6 sm:px-10 w-full">
<h1 className="text-4xl font-extrabold text-grey-800">Login</h1>
{/* errors */}
<ErrorsPopup />
<form
onSubmit={handleSubmit(onSubmit)}
className="mt-6 flex flex-col gap-y-6 sm:gap-x-8"
>
{/* email field */}
<div>
<label
htmlFor="email"
className="block text-sm font-medium text-gray-900"
>
Email
</label>
<div className="mt-1">
<input
{...register("email", { required: "E-mail is required" })}
type="text"
name="email"
id="email"
className="py-3 px-4 block w-full shadow-sm text-gray-900 focus:ring-blue-700 focus:border-blue-900 border-gray-300 rounded-md"
onChange={(event) => setEmail(event.target.value)}
/>
</div>
</div>
{/* password field */}
<div>
<label
htmlFor="password"
className="block text-sm font-medium text-gray-900"
>
Password
</label>
<div className="mt-1">
<input
{...register("password", {
required: "Password is required",
})}
type="password"
name="password"
id="password"
className="py-3 px-4 block w-full shadow-sm text-gray-900 focus:ring-blue-700 focus:border-blue-900 border-gray-300 rounded-md"
onChange={(event) => setPassword(event.target.value)}
/>
</div>
</div>
<div className="flex items-center justify-between sm:col-span-2">
<div>
<button
type="submit"
className="mt-2 mr-2 w-full inline-flex items-center justify-center px-6 py-3 border border-transparent rounded-md shadow-sm text-base font-medium text-white bg-blue-700 hover:bg-blue-900 focus:outline-none focus:ring-2 focus:ring-offset-2 focus:ring-blue-700 sm:w-auto"
>
<SaveIcon className="w-4 h-4 mr-4" />
Login
</button>
</div>
<div>
<Link href="/dashboard/auth/register">
<a className="underline decoration-blue-500 decoration-4 hover:decoration-2 mr-4">
Register
</a>
</Link>
<Link href="/dashboard/auth/forgot">
<a className="underline decoration-blue-500 decoration-4 hover:decoration-2">
Forgot your password?
</a>
</Link>
</div>
</div>
</form>
</div>
</div>
</div>
</>
);
}
所以我試圖為所有表單創建一個組件，我可以簡單地顯示任何錯誤以保持代碼干燥，但該組件沒有顯示。
當然，我錯過了一些愚蠢的東西，但我是新手，因此可以提供任何幫助。
uj5u.com熱心網友回復：
你必須FormProvider在你的Login組件和useFormContext你的ErrorPopup
???? https://react-hook-form.com/api/useformcontext
我// ??在我進行更改的地方添加了評論。
Login.js
import { useState } from "react";
import Head from "next/head";
import Link from "next/link";
import Image from "next/image";
import Background from "../../../public/images/option1.png";
import Router from "next/router";
import { signIn } from "next-auth/client";
import { useForm, FormProvider } from "react-hook-form"; //??
import { SaveIcon } from "@heroicons/react/outline";
import ErrorsPopup from "../../components/ErrorsPopup";
export default function Login() {
const methods = useForm(); //??
const { register, handleSubmit } = methods; //??
const [email, setEmail] = useState("");
const [password, setPassword] = useState("");
const onSubmit = async () => {
await signIn("credentials", {
redirect: false,
email: email,
password: password,
});
Router.push("/dashboard");
};
return (
<>
<Head>
<title>Ellis Development - Login</title>
</Head>
<div className="relative">
<div className="md:flex">
{/* Image */}
<div className="flex items-center justify-center bg-blue-700 h-screen lg:w-96">
<Image src={Background} width={350} height={350} layout="fixed" />
</div>
{/* Contact form */}
<div className="flex flex-col justify-center py-10 px-6 sm:px-10 w-full">
<h1 className="text-4xl font-extrabold text-grey-800">Login</h1>
<FormProvider {...methods}> //??
{/* errors */}
<ErrorsPopup />
<form
onSubmit={handleSubmit(onSubmit)}
className="mt-6 flex flex-col gap-y-6 sm:gap-x-8"
>
{/* email field */}
<div>
<label
htmlFor="email"
className="block text-sm font-medium text-gray-900"
>
Email
</label>
<div className="mt-1">
<input
{...register("email", { required: "E-mail is required" })}
type="text"
name="email"
id="email"
className="py-3 px-4 block w-full shadow-sm text-gray-900 focus:ring-blue-700 focus:border-blue-900 border-gray-300 rounded-md"
onChange={(event) => setEmail(event.target.value)}
/>
</div>
</div>
{/* password field */}
<div>
<label
htmlFor="password"
className="block text-sm font-medium text-gray-900"
>
Password
</label>
<div className="mt-1">
<input
{...register("password", {
required: "Password is required",
})}
type="password"
name="password"
id="password"
className="py-3 px-4 block w-full shadow-sm text-gray-900 focus:ring-blue-700 focus:border-blue-900 border-gray-300 rounded-md"
onChange={(event) => setPassword(event.target.value)}
/>
</div>
</div>
<div className="flex items-center justify-between sm:col-span-2">
<div>
<button
type="submit"
className="mt-2 mr-2 w-full inline-flex items-center justify-center px-6 py-3 border border-transparent rounded-md shadow-sm text-base font-medium text-white bg-blue-700 hover:bg-blue-900 focus:outline-none focus:ring-2 focus:ring-offset-2 focus:ring-blue-700 sm:w-auto"
>
<SaveIcon className="w-4 h-4 mr-4" />
Login
</button>
</div>
<div>
<Link href="/dashboard/auth/register">
<a className="underline decoration-blue-500 decoration-4 hover:decoration-2 mr-4">
Register
</a>
</Link>
<Link href="/dashboard/auth/forgot">
<a className="underline decoration-blue-500 decoration-4 hover:decoration-2">
Forgot your password?
</a>
</Link>
</div>
</div>
</form>
</FormProvider> //??
</div>
</div>
</div>
</>
);
}
ErrorPopup.js
import { useFormContext } from "react-hook-form"; // ??
import { XIcon } from "@heroicons/react/outline";
export default function ErrorsPopup() {
const {
formState: { errors },
} = useFormContext({ // ??
criteriaMode: "all",
});
return (
<>
{Object.keys(errors).length > 0 && (
<div className="mt-6 text-white bg-red-600 border-4 border-red-700 alert-start">
<div className="flex justify-between items-center bg-red-700 py-2 px-4">
<div>
<p>The following errors have occurred:</p>
</div>
<div className="cursor-pointer">
<XIcon className="h-6 w-6 text-white alert-close" />
</div>
</div>
<div className="py-2 px-4">
<div className="flex flex-col gap-2">
{Object.entries(errors).map(([index, error]) => (
<div className="flex flex-col gap-y-6 sm:gap-x-8" key={index}>
<p>• {error.message}</p>
</div>
))}
</div>
</div>
</div>
)}
</>
);
}
uj5u.com熱心網友回復：
我相信你需要在你的 ErrorsPopup 組件中使用useFormContext而不是useForm
https://react-hook-form.com/api/useformcontext
轉載請註明出處，本文鏈接：https://www.uj5u.com/net/383865.html
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