php
$page = $repository->forSlug($slug);

$validator = new FormValidator($page->blocks, request()->all());

$fields = $validator->validate();

php
/**
     * Validate all fields. On success, return the prepared fields as a collection.
     *
     * @throws \Illuminate\Validation\ValidationException
     */
    public function validate(): Collection
    {
        $fields = collect($this->fieldBlocks)->map(fn ($block) => $this->getField($block));

        $this->validateFields($fields);

        return $fields;
    }

php
protected function validateFields(Collection $fields)
{
    $rules = [];
    $customAttributes = [];

    foreach ($fields as $field) {
        if ($rule = $field->rule()) {
            $rules[$field->key()] = $rule;
        }

        $customAttributes[$field->key()] = $field->label();
    }

    Validator::make($this->data, $rules, [], $customAttributes)->validate();

    foreach ($fields as $field) {
        $field->afterValidation();
    }
}

rule()

php
public function rule(): string
{
    if ($this->block->content['required'] ?? false) {
        return 'required';
    }

    return 'nullable';
}

php
public function rule(): string
{
    return implode('|', [parent::rule(), 'file']);
}

$repository->images('list_of_images')