* This is only overridden as part of a HACK solution to a bug in WP 3.0 not allowing suppression of the duplicate email check.
*
* What it does: Replaces WP's get_user_by(). If during the user creation process (hackily determined by the plugin's instance)
* AND the email has not exceeded the account limit, then return false. wp_insert_user() calls this function simply to check if the
* email is already associated with an account. So in that instance, if we know that's where the request is originating and that the
* email in question is allowed to have multiple accounts, then trick the check into thinking the email isn't in use so that an error
* isn't generated.
*
* @since 2.6
* (based on version from WP 3.3)
*
* @param string $email User email
* @return string User associated with the email
*/
if (version_compare($GLOBALS['wp_version'], '3.2.99', '>') && !function_exists('get_user_by')) {
c2c_AllowMultipleAccounts::$controls_get_user_by = true;
function get_user_by($field, $value)
{
$obj = c2c_AllowMultipleAccounts::$instance;
if ('email' == $field && $obj->during_user_creation && !$obj->has_exceeded_limit($value)) {
return false;
}
$userdata = WP_User::get_data_by($field, $value);
if (!$userdata) {
return false;
}
$user = new WP_User();
$user->init($userdata);
return $user;
}
}