1 files changed, 105 insertions, 0 deletions
diff --git a/codebase/Dhtmlx/Connector/Data/DataItemUpdate.php b/codebase/Dhtmlx/Connector/Data/DataItemUpdate.php
new file mode 100644
index 0000000..ad97be2
--- /dev/null
+++ b/codebase/Dhtmlx/Connector/Data/DataItemUpdate.php
@@ -0,0 +1,105 @@
+<?php
+
+/*
+	@author dhtmlx.com
+	@license GPL, see license.txt
+*/
+
+/*! DataItemUpdate class for realization Optimistic concurrency control
+	Wrapper for DataItem object
+	It's used during outputing updates instead of DataItem object
+	Create wrapper for every data item with update information.
+*/
+
+namespace DHTMLX\Connector\Data;
+
+class DataItemUpdate extends DataItem {
+
+
+    /*! constructor
+        @param data
+            hash of data
+        @param config
+            DataConfig object
+        @param index
+            index of element
+    */
+    public function __construct($data,$config,$index,$type){
+        $this->config=$config;
+        $this->data=$data;
+        $this->index=$index;
+        $this->skip=false;
+        $this->child = new $type($data, $config, $index);
+    }
+
+    /*! returns parent_id (for Tree and TreeGrid components)
+    */
+    public function get_parent_id(){
+        if (method_exists($this->child, 'get_parent_id')) {
+            return $this->child->get_parent_id();
+        } else {
+            return '';
+        }
+    }
+
+
+    /*! generate XML on the data hash base
+    */
+    public function to_xml(){
+        $str= "<update ";
+        $str .= 'status="'.$this->data['type'].'" ';
+        $str .= 'id="'.$this->data['dataId'].'" ';
+        $str .= 'parent="'.$this->get_parent_id().'"';
+        $str .= '>';
+        $str .= $this->child->to_xml();
+        $str .= '</update>';
+        return $str;
+    }
+
+    /*! return starting tag for XML string
+    */
+    public function to_xml_start(){
+        $str="<update ";
+        $str .= 'status="'.$this->data['type'].'" ';
+        $str .= 'id="'.$this->data['dataId'].'" ';
+        $str .= 'parent="'.$this->get_parent_id().'"';
+        $str .= '>';
+        $str .= $this->child->to_xml_start();
+        return $str;
+    }
+
+    /*! return ending tag for XML string
+    */
+    public function to_xml_end(){
+        $str = $this->child->to_xml_end();
+        $str .= '</update>';
+        return $str;
+    }
+
+    /*! returns false for outputing only current item without child items
+    */
+    public function has_kids(){
+        return false;
+    }
+
+    /*! sets count of child items
+        @param value
+            count of child items
+    */
+    public function set_kids($value){
+        if (method_exists($this->child, 'set_kids')) {
+            $this->child->set_kids($value);
+        }
+    }
+
+    /*! sets attribute for item
+    */
+    public function set_attribute($name, $value){
+        if (method_exists($this->child, 'set_attribute')) {
+            LogMaster::log("setting attribute: \nname = {$name}\nvalue = {$value}");
+            $this->child->set_attribute($name, $value);
+        } else {
+            LogMaster::log("set_attribute method doesn't exists");
+        }
+    }
+}
+\ No newline at end of file