diff --git a/mod/assignment/backuplib.php b/mod/assignment/backuplib.php
index 8e8de5dedb1..747df2bb94a 100644
--- a/mod/assignment/backuplib.php
+++ b/mod/assignment/backuplib.php
@@ -73,13 +73,10 @@
         fwrite ($bf,full_tag("TIMEAVAILABLE",4,false,$assignment->timeavailable));
         fwrite ($bf,full_tag("GRADE",4,false,$assignment->grade));
         fwrite ($bf,full_tag("TIMEMODIFIED",4,false,$assignment->timemodified));
-
-        assignment_ensure_backup_subtype($assignment, $preferences->backup_course);
-        $assignment->atypeobj->backup_one_mod($bf, $preferences);
         //if we've selected to backup users info, then execute backup_assignment_submisions and
         //backup_assignment_files_instance
         if (backup_userdata_selected($preferences,'assignment',$assignment->id)) {
-            $status = backup_assignment_submissions($bf,$preferences,$assignment);
+            $status = backup_assignment_submissions($bf,$preferences,$assignment->id);
             if ($status) {
                 $status = backup_assignment_files_instance($bf,$preferences,$assignment->id);
             }
@@ -97,7 +94,7 @@
 
         $status = true;
 
-        $assignment_submissions = get_records("assignment_submissions","assignment",$assignment->id,"id");
+        $assignment_submissions = get_records("assignment_submissions","assignment",$assignment,"id");
         //If there is submissions
         if ($assignment_submissions) {
             //Write start tag
@@ -120,9 +117,6 @@
                 fwrite ($bf,full_tag("TEACHER",6,false,$ass_sub->teacher));       
                 fwrite ($bf,full_tag("TIMEMARKED",6,false,$ass_sub->timemarked));       
                 fwrite ($bf,full_tag("MAILED",6,false,$ass_sub->mailed));       
-
-                assignment_ensure_backup_subtype($assignment, $preferences->backup_course);
-                $assignment->atypeobj->backup_one_submission($bf, $preferences, $ass_sub);
                 //End submission
                 $status =fwrite ($bf,end_tag("SUBMISSION",5,true));
             }
@@ -275,28 +269,4 @@
                                  FROM {$CFG->prefix}assignment_submissions s
                                  WHERE s.assignment = $instanceid");
     }
-
-    /**
-     * small helper function to take the current assignment record
-     * and create the appropriate subtype object and store it
-     *
-     * @param $assignment the assignment db record (passed by reference and modified)
-     * @param $courseid the courseid
-     *
-     * @return void
-     */
-    function assignment_ensure_backup_subtype(&$assignment, $courseid) {
-        global $CFG;
-        static $course;
-        if (empty($course)) {
-            $course = get_record('course', 'id', $courseid);
-        }
-        if (empty($assignment->atypeobj)) {
-            $class = 'assignment_' . $assignment->assignmenttype;
-            require_once($CFG->dirroot . '/mod/assignment/lib.php');
-            require_once($CFG->dirroot . '/mod/assignment/type/' . $assignment->assignmenttype . '/assignment.class.php');
-            $cm = get_coursemodule_from_instance('assignment', $assignment->id, $courseid);
-            $assignment->atypeobj = new $class($cm->id, $assignment, $cm, $course);
-        }
-    }
 ?>
diff --git a/mod/assignment/lib.php b/mod/assignment/lib.php
index d2ed5d7d99a..7b011f78b17 100644
--- a/mod/assignment/lib.php
+++ b/mod/assignment/lib.php
@@ -1924,61 +1924,6 @@ class assignment_base {
 
         return $status;
     }
-
-    /**
-     * base implementation for backing up subtype specific information
-     * for one single module
-     *
-     * @param filehandle $bf file handle for xml file to write to
-     * @param mixed $preferences the complete backup preference object
-     *
-     * @return boolean
-     */
-    function backup_one_mod($bf, $preferences) {
-        return true;
-    }
-
-    /**
-     * base implementation for backing up subtype specific information
-     * for one single submission
-     *
-     * @param filehandle $bf file handle for xml file to write to
-     * @param mixed $preferences the complete backup preference object
-     * @param object $submission the assignment submission db record
-     *
-     * @return boolean
-     */
-    function backup_one_submission($bf, $preferences, $submission) {
-        return true;
-    }
-
-    /**
-     * base implementation for restoring subtype specific information
-     * for one single module
-     *
-     * @param array  $info the array representing the xml
-     * @param object $restore the restore preferences
-     *
-     * @return boolean
-     */
-    function restore_one_mod($info, $restore) {
-        return true;
-    }
-
-    /**
-     * base implementation for restoring subtype specific information
-     * for one single submission
-     *
-     * @param object $submission the newly created submission
-     * @param array  $info the array representing the xml
-     * @param object $restore the restore preferences
-     *
-     * @return boolean
-     */
-    function restore_one_submission($submission, $info, $restore) {
-        return true;
-    }
-
 } ////// End of the assignment_base class
 
 
diff --git a/mod/assignment/restorelib.php b/mod/assignment/restorelib.php
index 5ec5a0e11fb..19ef45cfe4f 100644
--- a/mod/assignment/restorelib.php
+++ b/mod/assignment/restorelib.php
@@ -105,22 +105,11 @@
                 //We have the newid, update backup_ids
                 backup_putid($restore->backup_unique_code,$mod->modtype,
                              $mod->id, $newid);
-                // load up the subtype and see if it wants anything further restored.
-                $class = 'assignment_' . $assignment->assignmenttype;
-                require_once($CFG->dirroot . '/mod/assignment/lib.php');
-                require_once($CFG->dirroot . '/mod/assignment/type/' . $assignment->assignmenttype . '/assignment.class.php');
-                $cmid = backup_getid($restore->backup_unique_code, 'course_modules', $mod->id);
-                $cm = get_record('course_modules', 'id', $cmid->new_id);
-                $cm->instance = $newid;
-                $subtype = new $class($cmid->id, $assignment, $cm);
-                $assignment->id = $newid;
-
-                $subtype->restore_one_mod($info, $restore);
 
                 //Now check if want to restore user data and do it.
                 if (restore_userdata_selected($restore,'assignment',$mod->id)) { 
                     //Restore assignmet_submissions
-                    $status = assignment_submissions_restore_mods($mod->id, $newid,$info,$restore, $subtype) && $status;
+                    $status = assignment_submissions_restore_mods($mod->id, $newid,$info,$restore) && $status;
                 }
             } else {
                 $status = false;
@@ -133,7 +122,7 @@
     }
 
     //This function restores the assignment_submissions
-    function assignment_submissions_restore_mods($old_assignment_id, $new_assignment_id,$info,$restore, $subtype) {
+    function assignment_submissions_restore_mods($old_assignment_id, $new_assignment_id,$info,$restore) {
 
         global $CFG;
 
@@ -211,8 +200,6 @@
                 $status = assignment_restore_files ($old_assignment_id, $new_assignment_id, 
                                                     $olduserid, $submission->userid, $restore);
 
-                $submission->id = $newid;
-                $status = $subtype->restore_one_submission($submission, $info, $restore);
             } else {
                 $status = false;
             }