PocketBase

Two helpers ship from a separate entry point, so nothing PocketBase-related reaches your bundle unless you import it:

import {
  parsePocketbaseError,
  prepareFormDataForPocketbase,
} from '@sparkstone/solid-validation/pocketbase';

Field errors

PocketBase returns validation failures under data.data, keyed by field name. parsePocketbaseError flattens that into the shape the submit callback expects, so it can be returned directly:

async function onSubmit(form: HTMLFormElement) {
  try {
    await pb.collection('users').create(new FormData(form));
  } catch (error) {
    return parsePocketbaseError(error);
  }
}

Given a PocketBase response like:

{
  "message": "Failed to create record.",
  "data": {
    "email": { "code": "validation_invalid_email", "message": "Must be a valid email address." },
    "password": { "code": "validation_length_out_of_range", "message": "Must be at least 8 characters." }
  }
}

you get:

{
  form: 'Failed to create record.',
  email: 'Must be a valid email address.',
  password: 'Must be at least 8 characters.',
}

Field names match your input name attributes, so each message lands next to its field. The top-level message goes under form. Render it wherever your form-level errors go:

<span>{errors.form}</span>

Pass a second argument to use a different key:

return parsePocketbaseError(error, 'signupError');

An error with no data.data block, such as a network failure, yields only the root key. That is why the root key is always populated: there is always something to show.

Checkboxes

An unchecked checkbox is omitted from FormData entirely. PocketBase treats a missing boolean field as no change rather than as false, so unchecking a box does nothing. prepareFormDataForPocketbase writes an explicit "false" for every unchecked box in the form:

async function onSubmit(form: HTMLFormElement) {
  const formData = prepareFormDataForPocketbase(new FormData(form), form);
  await pb.collection('users').update(id, formData);
}

It mutates and returns the same FormData instance, and it only touches input[type="checkbox"] elements inside the form you pass it.