my_is_iu_import_userdata.php

<?php
/*
Plugin Name: PMPro Custom Import
Plugin URI: http://www.paidmembershipspro.com/wp/pmpro-customizations/
Description: Custom Import Code for PMPro
Version: .1
Author: Stranger Studios
Author URI: http://www.strangerstudios.com
*/

/*
	Change some of the user data columns.
*/
function my_is_iu_import_userdata($userdata, $usermeta)
{
    //make sure we have a user_login
    if(empty($userdata['user_login'])) {

        //try some variations
        $variations = array('username', 'Username');

        foreach($variations as $variation) {
            if(!empty($usermeta[$variation]))
                $userdata['user_login'] = $usermeta[$variation];
        }
    }

    //make sure we have a user_email
    if(empty($userdata['user_email'])) {

        //try some variations
        $variations = array('email', 'Email');

        foreach($variations as $variation) {
            if(!empty($usermeta[$variation]))
                $userdata['user_email'] = $usermeta[$variation];
        }
    }

    //make sure email is valid
    if(!is_email($userdata['user_email']) || stripos($userdata['user_email'], 'noemail') !== false)
        $userdata['user_email'] = '';

    //if we still don't have a user_login, use email or create one
    if(empty($userdata['user_login'])) {
        if(!empty($userdata['user_email']))
            $userdata['user_login'] = $userdata['user_email'];
        else {
            //create user_login (user_login = first_name.middle_name.last_name.guard_state)
            $user_login = '';

            if(!empty($userdata['first_name']))
                $user_login = sanitize_title($userdata['first_name']);

            if(!empty($userdata['middle_name']))
                $user_login .= '.' . sanitize_title($userdata['middle_name']);

            if(!empty($userdata['last_name']))
                $user_login .= '.' . sanitize_title($userdata['last_name']);

            if(!empty($userdata['guard_state']))
                $user_login .= '.' . sanitize_title($userdata['guard_state']);

            //fix any new hyphens
            $user_login = str_replace('-', '.', $user_login);

            $userdata['user_login'] = $user_login;
        }
    }
	return $userdata;
}
add_filter('is_iu_import_userdata', 'my_is_iu_import_userdata', 10, 2);

/*
	Change some of the user meta columns.
*/
function my_is_iu_import_usermeta($usermeta, $userdata)
{
    //fix gender column
    if(!empty($usermeta['gender'])) {
        if(in_array($usermeta['gender'], array('M', 'Male')))
            $usermeta['gender'] = 'male';
        elseif(in_array($usermeta['gender'], array('F', 'Female')))
            $usermeta['gender'] = 'female';
    }

    //fix rank column
    $usermeta['rank'] = str_replace('SGT', 'Sgt', $usermeta['rank']);

    //fix dates
    foreach($usermeta as $key=>$value) {
        if(strpos('12/31/9999', $value) !== false)
            $usermeta[$key] = '';
    }

    //rename some columns
    $usermeta['membership_enddate'] = $usermeta['expires'];
    $usermeta['membership_startdate'] = $usermeta['joined'];
    $usermeta['import_unit'] = $usermeta['unit'];

	return $usermeta;
}
add_filter('is_iu_import_usermeta', 'my_is_iu_import_usermeta', 10, 2);