* import of php connector v1.2

1 files changed, 165 insertions, 0 deletions

diff --git a/codebase/treegrid_connector.php b/codebase/treegrid_connector.php
new file mode 100644
index 0000000..308fcf4
--- /dev/null
+++ b/codebase/treegrid_connector.php
@@ -0,0 +1,165 @@
+<?php
+/*
+	@author dhtmlx.com
+	@license GPL, see license.txt
+*/
+require_once("grid_connector.php");
+
+/*! DataItem class for TreeGrid component
+**/
+class TreeGridDataItem extends GridDataItem{
+	private $kids=-1;//!< checked state
+	
+	function __construct($data,$config,$index){
+		parent::__construct($data,$config,$index);
+		$this->im0=false;
+	}
+	/*! return id of parent record
+
+		@return 
+			id of parent record
+	*/
+	function get_parent_id(){
+		return $this->data[$this->config->relation_id["name"]];
+	}
+	/*! assign image to treegrid's item
+		longer description
+		@param img 
+			relative path to the image
+	*/
+	function set_image($img){
+		$this->set_cell_attribute($this->config->text[0]["name"],"image",$img);
+	}
+
+	/*! return count of child items
+		-1 if there is no info about childs
+		@return 
+			count of child items
+	*/	
+	function has_kids(){
+		return $this->kids;
+	}
+	/*! sets count of child items
+		@param value
+			count of child items
+	*/	
+	function set_kids($value){
+		$this->kids=$value;
+		if ($value) 
+			$this->set_row_attribute("xmlkids",$value);
+	}
+}
+/*! Connector for dhtmlxTreeGrid
+**/
+class TreeGridConnector extends GridConnector{
+	private $id_swap = array();
+	
+	/*! constructor
+		
+		Here initilization of all Masters occurs, execution timer initialized
+		@param res 
+			db connection resource
+		@param type
+			string , which hold type of database ( MySQL or Postgre ), optional, instead of short DB name, full name of DataWrapper-based class can be provided
+		@param item_type
+			name of class, which will be used for item rendering, optional, DataItem will be used by default
+		@param data_type
+			name of class which will be used for dataprocessor calls handling, optional, DataProcessor class will be used by default. 
+	*/	
+	public function __construct($res,$type=false,$item_type=false,$data_type=false){
+		if (!$item_type) $item_type="TreeGridDataItem";
+		if (!$data_type) $data_type="TreeGridDataProcessor";
+		parent::__construct($res,$type,$item_type,$data_type);
+	
+		$this->event->attach("afterInsert",array($this,"parent_id_correction_a"));
+		$this->event->attach("beforeProcessing",array($this,"parent_id_correction_b"));
+	}
+
+	/*! store info about ID changes during insert operation
+		@param dataAction 
+			data action object during insert operation
+	*/	
+	public function parent_id_correction_a($dataAction){
+		$this->id_swap[$dataAction->get_id()]=$dataAction->get_new_id();
+	}
+	/*! update ID if it was affected by previous operation
+		@param dataAction 
+			data action object, before any processing operation
+	*/
+	public function parent_id_correction_b($dataAction){
+		$relation = $this->config->relation_id["db_name"];
+		$value = $dataAction->get_value($relation);
+		
+		if (array_key_exists($value,$this->id_swap))
+			$dataAction->set_value($relation,$this->id_swap[$value]);
+	}
+		
+	/*! process treegrid specific options in incoming request
+	*/
+	public function parse_request(){
+		parent::parse_request();
+		
+		if (isset($_GET["id"]))
+			$this->request->set_relation($_GET["id"]);
+		else
+			$this->request->set_relation("0");
+			
+		$this->request->set_limit(0,0); //netralize default reaction on dyn. loading mode
+	}
+	
+	/*! process treegrid specific options in incoming request
+	*/	
+	protected function render_set($res){
+		$output="";
+		$index=0;
+		while ($data=$this->sql->get_next($res)){
+			$data = new $this->names["item_class"]($data,$this->config,$index);
+			$this->event->trigger("beforeRender",$data);
+		//there is no info about child elements, 
+		//if we are using dyn. loading - assume that it has,
+		//in normal mode juse exec sub-render routine			
+			if ($data->has_kids()===-1 && $this->dload)
+					$data->set_kids(true);
+			$output.=$data->to_xml_start();
+			if ($data->has_kids()===-1 || ( $data->has_kids()==true && !$this->dload)){
+				$sub_request = new DataRequestConfig($this->request);
+				$sub_request->set_relation($data->get_id());
+				$output.=$this->render_set($this->sql->select($sub_request));
+			}
+			$output.=$data->to_xml_end();
+			$index++;
+		}
+		return $output;
+	}	
+	
+	/*! renders self as  xml, starting part
+	*/	
+	protected function xml_start(){
+		return "<rows parent='".$this->request->get_relation()."'>";
+	}	
+}
+
+/*! DataProcessor class for Grid component
+**/
+class TreeGridDataProcessor extends GridDataProcessor{
+	
+	function __construct($connector,$config,$request){
+		parent::__construct($connector,$config,$request);
+		$request->set_relation(false);
+	}
+	
+	/*! convert incoming data name to valid db name
+		converts c0..cN to valid field names
+		@param data 
+			data name from incoming request
+		@return 
+			related db_name
+	*/
+	function name_data($data){
+		
+		if ($data=="gr_pid")
+			return $this->config->relation_id["name"];
+		else return parent::name_data($data);
+	}
+}
+?>
\ No newline at end of file