Add user level for editing custom post only Wordpress

gistfile1.txt

<?php
/**
 * Plugin Name: Sermon User
 * Description: Adds a user level with access only to Sermons via wp admin
 * Version: 0.1.0
 * Author: Anne Allen
 * Author URI: http://nustart.solutions/
 * License: GPL2
 */
 

	
register_activation_hook( __FILE__, 'psp_add_sermon_management_role' );	


//* Add sermon Manager Role

function psp_add_sermon_management_role() {
 add_role('psp_sermon_manager','Sermon Manager',
            array(
                'read' => true,
                'edit_posts' => false,
                'delete_posts' => false,
                'publish_posts' => false,
                'upload_files' => true,
            )
        );
   }
  

add_action('admin_init','psp_add_role_caps',999);
    function psp_add_role_caps() {

		// Add the roles you'd like to administer the custom post types
	$roles = array('psp_sermon_manager','editor','administrator');
		
		// Loop through each role and assign capabilities
	foreach($roles as $the_role) { 

		     $role = get_role($the_role);


	             $role->add_cap( 'read_sermon');
	             $role->add_cap( 'read_private_sermons' );
	             $role->add_cap( 'edit_sermon' );
	             $role->add_cap( 'edit_sermons' );
	             $role->add_cap( 'edit_others_sermons' );
	             $role->add_cap( 'edit_published_sermons' );
	             $role->add_cap( 'publish_sermons' );
	             $role->add_cap( 'delete_others_sermons' );
	             $role->add_cap( 'delete_private_sermons' );
	             $role->add_cap( 'delete_published_sermons' );
		
}
}


?>