diff --git a/mod/data/field/number/field.class.php b/mod/data/field/number/field.class.php
index 0192060c765..072a4156459 100755
--- a/mod/data/field/number/field.class.php
+++ b/mod/data/field/number/field.class.php
@@ -30,6 +30,20 @@ class data_field_number extends data_field_base {
         parent::data_field_base($field, $data);
     }
 
+    function update_content($recordid, $value, $name='') {
+        $content = new object;
+        $content->fieldid = $this->field->id;
+        $content->recordid = $recordid;
+        $content->content = (float)$value;
+        
+        if ($oldcontent = get_record('data_content','fieldid', $this->field->id, 'recordid', $recordid)) {
+            $content->id = $oldcontent->id;
+            return update_record('data_content', $content);
+        } else {
+            return insert_record('data_content', $content);
+        }
+    }
+
     function get_sort_sql($fieldname) {
         global $CFG;