Don't expect an empty post

gistfile1.php

public function extract_post()
{
    $required_fields = array(
        'post-title',
        'post-slug',
        'post-status',
        'post-layout',
        'post-content',
        'post-publish',
        'post-expire'
    );

    $data = Arr::extract($this->request->post(), $required_fields);

    if ( ! array_filter($data))
    {
        return FALSE;
    }

    return $data;
}