Wordpress Plugin Dependancy

gistfile1.txt

add_action( 'admin_init', 'check_wpjobboard_activate' );
function check_wpjobboard_activate() {
    if ( is_admin() && current_user_can( 'activate_plugins' ) &&  !is_plugin_active( 'wpjobboard/index.php' ) ) {
        add_action( 'admin_notices', 'wpjobboard_timesheets_plugin_notice' );

        deactivate_plugins( plugin_basename( __FILE__ ) );

        if ( isset( $_GET['activate'] ) ) {
            unset( $_GET['activate'] );
        }
    }
}

function wpjobboard_timesheets_plugin_notice(){
    ?><div class="error"><p>Sorry, but Child Plugin requires the Parent plugin to be installed and active.</p></div><?php
}