passive-yellow•2mo ago

why register() method not work?

import { useSelect } from "@refinedev/core";
import { useForm } from "@refinedev/react-hook-form";

export const PostEdit: React.FC = () => {
  const {
    refineCore: { onFinish, formLoading, query },
    register,
    handleSubmit,
    resetField,
    formState: { errors },
  } = useForm();

  const { options } = useSelect({
    resource: "categories",
    defaultValue: query?.data?.data.category.id,
  });

  useEffect(() => {
    resetField("category.id");
  }, [options]);

  return (
    <form onSubmit={handleSubmit(onFinish)}>
      <label>Title: </label>
      <input {...register("title", { required: true })} />
      {errors.title && <span>This field is required</span>}
      <br />
      <label>Status: </label>
      <select {...register("status")}>
        <option value="published">published</option>
        <option value="draft">draft</option>
        <option value="rejected">rejected</option>
      </select>
      <br />
      <label>Category: </label>
      <select
        {...register("category.id", {
          required: true,
        })}
        defaultValue={query?.data?.data.category.id}
      >
        {options?.map((category) => (
          <option key={category.value} value={category.value}>
            {category.label}
          </option>
        ))}
      </select>
      {errors.category && <span>This field is required</span>}
      <br />
      <label>Content: </label>
      <br />
      <textarea
        {...register("content", { required: true })}
        rows={10}
        cols={50}
      />
      {errors.content && <span>This field is required</span>}
      <br />

      

      <input type="submit" value="Submit" />
      {formLoading && <p>Loading</p>}
    </form>
  );
};

import { useSelect } from "@refinedev/core";
import { useForm } from "@refinedev/react-hook-form";

export const PostEdit: React.FC = () => {
  const {
    refineCore: { onFinish, formLoading, query },
    register,
    handleSubmit,
    resetField,
    formState: { errors },
  } = useForm();

  const { options } = useSelect({
    resource: "categories",
    defaultValue: query?.data?.data.category.id,
  });

  useEffect(() => {
    resetField("category.id");
  }, [options]);

  return (
    <form onSubmit={handleSubmit(onFinish)}>
      <label>Title: </label>
      <input {...register("title", { required: true })} />
      {errors.title && <span>This field is required</span>}
      <br />
      <label>Status: </label>
      <select {...register("status")}>
        <option value="published">published</option>
        <option value="draft">draft</option>
        <option value="rejected">rejected</option>
      </select>
      <br />
      <label>Category: </label>
      <select
        {...register("category.id", {
          required: true,
        })}
        defaultValue={query?.data?.data.category.id}
      >
        {options?.map((category) => (
          <option key={category.value} value={category.value}>
            {category.label}
          </option>
        ))}
      </select>
      {errors.category && <span>This field is required</span>}
      <br />
      <label>Content: </label>
      <br />
      <textarea
        {...register("content", { required: true })}
        rows={10}
        cols={50}
      />
      {errors.content && <span>This field is required</span>}
      <br />

      

      <input type="submit" value="Submit" />
      {formLoading && <p>Loading</p>}
    </form>
  );
};

why does ...register here not populate value?

1 Reply

kapa.ai•2mo ago

Hi @flankieflew. I'm kapa.ai, your friendly support bot. I will try to answer your question by searching through the knowledge base. :wave: ---------------------- The register() method from useForm() in refine is used to register input/select fields in React. This is necessary for React Hook Form to recognize and manage the fields. The register() method returns an object with the onChange, onBlur, name, ref props, which are then passed to the input/select elements to effectively spy on and run validations on the changes happening to the field (source (https://refine.dev/blog/react-hook-form/#react-hook-form-how-to-register-a-field)). If the register() method is not populating the value, it could be due to a few reasons: 1. The useForm() hook might not be initialized correctly. Make sure you are using it as shown in the examples from the refine documentation (https://refine.dev/docs/packages/react-hook-form/use-form/#usage). 2. The name attribute you are passing to register() might not match the name of the field in your data. Make sure the name attribute matches exactly with the field name in your data. 3. The data might not be available at the time of rendering. Make sure the data you are trying to populate is available before the component renders. 4. There might be an issue with the way you are using register() in your code. Make sure you are using it as shown in the examples from the refine documentation (https://refine.dev/docs/packages/react-hook-form/use-form/#usage). If you are still facing issues, it would be helpful to check the console for any errors or warnings. Also, consider posting a detailed question on the refine GitHub issues page (https://github.com/refinedev/refine/issues/3726) for more specific help. ---------------------- Note: you can ask me a follow up question by @ mentioning me again :speech_balloon: ----------------------