_docs/changes.inc.php

function list_changes() {

    $changed_items=get all changed Items();
    foreach($changed_items as $i) {
        
        switch($c->type) {

             case ITEM_TASK:

                 ### check visibility
                 if(!$task= Task::getVisibleById($c->id))   {
                     continue;
                 }
                 
                 $flag_new = false;
                 $flag_created= false;
                 $flag_deleted= false;
                                  
                 $assignments= $task->getAssigments();

                 $flag_assigned_to_cur_user= false;
                 foreach($assignments as $a) {
                    if($a->person == $auth->cur_user->id) {
                        $flag_assigned_to_cur_user= true;
                        break;
                    }
                 }

                 if($flag_new) {

                     if($flag_assigned_to_cur_user) {
                         $str_to=   __('to') .' '.  '<b>'. __('you') . '</b>';
                     }
                     else if( count($assignments) == 0)   {
                         $str_to=   $PH->getLink('taskAssignToPerson',__('assign to'), array('tsk'=>'$task->id');
                     }
                     else {
                         $str_to= $task->getAssignedPersons();
                     }                    
                 }

                 else if($flag_deleted)   {
                     $str_what= __('deleted');
                 }

                 else   if($flag_modified){
                        
                 }

                 break;

             case   ITEM_EFFORT:
                 break;

             case   ITEM_TASKASSIGMENT:
                 break;
 
             case   ITEM_COMMENT:
                 break;

        }
    }

---