161 lines
4.7 KiB
PHP
161 lines
4.7 KiB
PHP
<?php
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require_once("grid_connector.php");
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/*! DataItem class for TreeGrid component
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**/
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class TreeGridDataItem extends GridDataItem{
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private $kids=-1;//!< checked state
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function __construct($data,$config,$index){
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parent::__construct($data,$config,$index);
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$this->im0=false;
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}
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/*! return id of parent record
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@return
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id of parent record
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*/
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function get_parent_id(){
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return $this->data[$this->config->relation_id["name"]];
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}
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/*! assign image to treegrid's item
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longer description
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@param img
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relative path to the image
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*/
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function set_image($img){
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$this->set_cell_attribute($this->config->text[0]["name"],"image",$img);
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}
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/*! return count of child items
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-1 if there is no info about childs
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@return
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count of child items
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*/
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function has_kids(){
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return $this->kids;
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}
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/*! sets count of child items
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@param value
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count of child items
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*/
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function set_kids($value){
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$this->kids=$value;
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if ($value)
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$this->set_row_attribute("xmlkids",$value);
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}
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}
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/*! Connector for dhtmlxTreeGrid
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**/
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class TreeGridConnector extends GridConnector{
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private $id_swap = array();
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/*! constructor
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Here initilization of all Masters occurs, execution timer initialized
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@param res
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db connection resource
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@param type
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string , which hold type of database ( MySQL or Postgre ), optional, instead of short DB name, full name of DataWrapper-based class can be provided
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@param item_type
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name of class, which will be used for item rendering, optional, DataItem will be used by default
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@param data_type
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name of class which will be used for dataprocessor calls handling, optional, DataProcessor class will be used by default.
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*/
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public function __construct($res,$type=false,$item_type=false,$data_type=false){
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if (!$item_type) $item_type="TreeGridDataItem";
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if (!$data_type) $data_type="TreeGridDataProcessor";
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parent::__construct($res,$type,$item_type,$data_type);
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$this->event->attach("afterInsert",array($this,"parent_id_correction_a"));
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$this->event->attach("beforeProcessing",array($this,"parent_id_correction_b"));
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}
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/*! store info about ID changes during insert operation
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@param dataAction
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data action object during insert operation
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*/
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public function parent_id_correction_a($dataAction){
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$this->id_swap[$dataAction->get_id()]=$dataAction->get_new_id();
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}
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/*! update ID if it was affected by previous operation
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@param dataAction
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data action object, before any processing operation
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*/
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public function parent_id_correction_b($dataAction){
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$relation = $this->config->relation_id["db_name"];
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$value = $dataAction->get_value($relation);
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if (array_key_exists($value,$this->id_swap))
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$dataAction->set_value($relation,$this->id_swap[$value]);
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}
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/*! process treegrid specific options in incoming request
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*/
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public function parse_request(){
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parent::parse_request();
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if (isset($_GET["id"]))
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$this->request->set_relation($_GET["id"]);
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else
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$this->request->set_relation("0");
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$this->request->set_limit(0,0); //netralize default reaction on dyn. loading mode
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}
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/*! process treegrid specific options in incoming request
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*/
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protected function render_set($res){
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$output="";
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$index=0;
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while ($data=$this->sql->get_next($res)){
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$data = new $this->names["item_class"]($data,$this->config,$index);
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$this->event->trigger("beforeRender",$data);
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//there is no info about child elements,
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//if we are using dyn. loading - assume that it has,
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//in normal mode juse exec sub-render routine
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if ($data->has_kids()===-1 && $this->dload)
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$data->set_kids(true);
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$output.=$data->to_xml_start();
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if ($data->has_kids()===-1 || ( $data->has_kids()==true && !$this->dload)){
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$sub_request = new DataRequestConfig($this->request);
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$sub_request->set_relation($data->get_id());
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$output.=$this->render_set($this->sql->select($sub_request));
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}
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$output.=$data->to_xml_end();
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$index++;
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}
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return $output;
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}
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/*! renders self as xml, starting part
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*/
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protected function xml_start(){
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return "<rows parent='".$this->request->get_relation()."'>";
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}
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}
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/*! DataProcessor class for Grid component
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**/
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class TreeGridDataProcessor extends GridDataProcessor{
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function __construct($connector,$config,$request){
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parent::__construct($connector,$config,$request);
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$request->set_relation(false);
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}
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/*! convert incoming data name to valid db name
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converts c0..cN to valid field names
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@param data
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data name from incoming request
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@return
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related db_name
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*/
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function name_data($data){
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if ($data=="gr_pid")
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return $this->config->relation_id["name"];
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else return parent::name_data($data);
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}
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}
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?>
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