使用REST web服务使用set_relationship方法添加会议和meetings_contacts关系

我试图设置使用rest创建的会议和分配的联系人之间的关系，以下是我的代码。会议成功插入，但我不知道为什么分配的联系人没有保存到meetings_contacts表

$login_parameters = array(
        "user_auth"=>array(
                "user_name"=>'rocks',
                "password"=>md5('rocks'),
                "version"=>"1"
        ),
        "application_name"=>"VanareClient",
        "name_value_list"=>array(),
 );
$data = call("login", $login_parameters, $url);
$set_contact_parameters = array (
                'session' => $data->id,

                'module_name' => 'Meetings',

                'name_value_list' => array( array (
                    "name" => "name",
                    "value" => "Subject" 
            ),
            array (
                    "name" => "description",
                    "value" => "description" 
            ),
            array (
                    "name" => "location",
                    "value" => "Pune" 
            ),
            array (
                    "name" => "duration_hours",
                    "value" =>"1" 
            ),
                ) );
 $dataMeeting = call ( "set_entry", $set_contact_parameters, $url );
 $parameters = array(
                'session' =>  $data->id,
                'module_name' => 'Meetings',
                'module_id' => $dataMeeting->id,
                'link_field_name' => 'meetings_contacts',
                'related_ids ' => array('25627846-a8a2-eeb5-3565-532035113842'),
 );
$dataContactMeetings = call ( "set_relationship", $parameters, $url );

这就是我正在尝试的…请帮助我如何将会议和联系人的关系插入到meetings_contacts mysql表中。我使用的是Sugarcrm CE 6.5.16版本