[Chameleon] How to include (join) php code in custom widget
Ines
mleonsoft at yahoo.com.ar
Wed Jan 24 13:29:08 EST 2007
Hi, I tried with adding the isset, but when I run the widget, it goes to a
white page. Don't show me the application and don´t show me the errors, just
a white page whit no content. I don´t know why. What another thing it could
be? I checked the files(archivo4.xml, XML.inc.php), the locations and
everything seems right. That two files are in the htdocs folder of my
aplication.
Thanks again
Ines
-----Mensaje original-----
De: Julien-Samuel Lacroix [mailto:jlacroix at mapgears.com]
Enviado el: martes, 23 de enero de 2007 9:09
Para: Ines
CC: chameleon at lists.maptools.org
Asunto: Re: [Chameleon] How to include (join) php code in custom widget
Hi,
I think the problem is caused by the fact that sometimes
$this->_actual_tag->$name doesn't exist. By adding an isset at line 66
you should solve the problem.
if(isset($this->_actual_tag->$name) &&
(is_object($this->_actual_tag->$name) ||
is_array($this->_actual_tag->$name))){
Julien
Ines wrote:
> Julien, I tried puting the code just where you tell me. But I had errors
> with the variables of my new code. The application don't recognize all the
> new variables, for example: $xml_file (the first new variable) and the
> others.
>
> So,
>
> 1) I declared all the new variables in: class UUW extends NavTool:
>
> var $xml_file;
> var $xml_data;
> var $namespace;
> var $xml;
> ............etc.
>
> 2) I access at the new variables in this way:
>
> Example: variable: $xml_file
> I access in this way: $this->xml_file
>
> Now, the application don't show me errors with the new variables. Is 1)
and
> 2) right?
>
> But the application show me one error in the required file
> (require_once('XML.inc.php'), class to use the new code:
>
> It could be a problem between the objects?
>
>
> I send you:
>
> A) The error
> B) The new code into the widget with all the "$this->variablexx" access
> C) The file 'XML.inc.php' with the line 66 marked
>
> A)
>
> This is the error, all the errors at the line 66. It marks all the xml
tags
> (header, version, etc)
>
> Notice: Undefined property: header in
> D:\ms4w\apps\wmsviewer\geointegrator\htdocs\XML.inc.php on line 66
> Notice: Undefined property: header in
> D:\ms4w\apps\wmsviewer\geointegrator\htdocs\XML.inc.php on line 66
> Notice: Undefined property: version in
> D:\ms4w\apps\wmsviewer\geointegrator\htdocs\XML.inc.php on line 66
> Notice: Undefined property: version in
> D:\ms4w\apps\wmsviewer\geointegrator\htdocs\XML.inc.php on line 66
> Notice: Undefined property: sendTime in
> D:\ms4w\apps\wmsviewer\geointegrator\htdocs\XML.inc.php on line 66
> Notice: Undefined property: sendTime in
> D:\ms4w\apps\wmsviewer\geointegrator\htdocs\XML.inc.php on line 66
> Notice: Undefined property: source in
> D:\ms4w\apps\wmsviewer\geointegrator\htdocs\XML.inc.php on line 66
> Notice: Undefined property: source in
> D:\ms4w\apps\wmsviewer\geointegrator\htdocs\XML.inc.php on line 66
> Notice: Undefined property: destination in
> D:\ms4w\apps\wmsviewer\geointegrator\htdocs\XML.inc.php on line 66
> Notice: Undefined property: destination in
> D:\ms4w\apps\wmsviewer\geointegrator\htdocs\XML.inc.php on line 66
> Notice: Undefined property: type in
> D:\ms4w\apps\wmsviewer\geointegrator\htdocs\XML.inc.php on line 66
> Notice: Undefined property: type in
> D:\ms4w\apps\wmsviewer\geointegrator\htdocs\XML.inc.php on line 66
> Notice: Undefined property: content in
> D:\ms4w\apps\wmsviewer\geointegrator\htdocs\XML.inc.php on line 66
> Notice: Undefined property: content in
> D:\ms4w\apps\wmsviewer\geointegrator\htdocs\XML.inc.php on line 66
> ................etc
> --------------------------------------------------------------------------
--
> ------------------
>
> B)
>
> if ( $this->isVarSet( "NAV_CMD" ) &&
> $this->getVar( "NAV_CMD" ) == 'UUW' )
> {
>
> if ( $this->mszCoords == 'aa')
> {
>
> $this->xml_file="archivo4.xml";
> $this->xml_data=implode("",file($this->xml_file));
>
> $this->namespace = substr($this->xml_data, strpos($this->xml_data,
> "<content xmlns:")+15, strpos($this->xml_data, "=",
strpos($this->xml_data,
> "<content xmlns:")) - strpos($this->xml_data, "<content xmlns:") -15);
>
>
> $this->xml_data=str_replace($this->namespace.":", "", $this->xml_data);
>
> $this->xml=new XML();
>
> $this->xml->parse($this->xml_data);
>
> $this->tot = count($this->xml->response);
>
>
> if($this->tot > 0)
> {
> $this->tot_a = count($this->xml->response->content);
>
> if($this->tot_a > 0)
> {
> $this->tot_b = count($this->xml->response->content->record);
>
> if($this->tot_b > 0)
> {
>
> for($this->j = 0; $this->j < $this->tot_b; $this->j++)
> {
> $this->sc_name =
> $this->xml->response->content->record[$this->j]->ScientificName->_value;
>
> if($this->sc_name == "Inga oerstediana")
> {
> $this->sc_name2=
> $this->xml->response->content->record[$this->j]->ScientificName->_value;
> $this->latitud=
> $this->xml->response->content->record[$this->j]->Latitude->_value;
> $this->longitud=
> $this->xml->response->content->record[$this->j]->Longitude->_value;
>
> exit;
> }
> }
> }
> else
> {
> return false;
>
> }
>
> }
> else
> {
> return false;
>
> }
> }
> else
> {
> return false;
> }
>
>
> $this->x = $this->longitud;
> $this->y = $this->latitud;
>
> //$this->lb = $this->getVar('especie');
>
> if ($this->isVarSet('espe') == 0)
> {
> $this->lb = "no";
> }
> else
> {
> $this->lb = $this->getVar('espe');
> }
>
> $poLayer = $this->moMapObject->oMap->getLayerByName('pointlatlon');
> $poLayer->set("status", MS_ON);
> $pt = ms_newPointObj();
> $ln = ms_newLineObj();
> $shp = ms_newShapeObj(MS_SHAPE_POINT);
> $shp->set("text", $this->lb);
> $pt->setXY($this->x,$this->y);
> $ln->add($pt);
> $shp->add($ln);
> $poLayer->addFeature($shp);
>
>
> }
>
>
> }
>
> --------------------------------------------------------------------------
--
> ---------------------
>
> C)
>
>
> <?php
> /*
> * XML.inc.php
> *
> * Class to convert an XML file into an object
> *
> * Copyright (C) 2006 Oliver Strecke <oliver.strecke at browsertec.de>
> *
> * This library is free software; you can redistribute it and/or
> * modify it under the terms of the GNU Lesser General Public
> * License as published by the Free Software Foundation; either
> * version 2 of the License, or (at your option) any later version.
> *
> * This library is distributed in the hope that it will be useful,
> * but WITHOUT ANY WARRANTY; without even the implied warranty of
> * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
> * Lesser General Public License for more details.
> *
> * You should have received a copy of the GNU Lesser General Public
> * License along with this library; if not, write to the Free Software
> * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
USA
> */
>
> class XML{
> var $_parser;
> var $_xml_data;
> var $_actual_tag;
>
> //Constructor...
> function xml(){
> $this->_parser=xml_parser_create("ISO-8859-1");
> $this->_xml_data="";
> $this->_actual_tag=$this;
>
> xml_set_object($this->_parser,$this);
>
xml_parser_set_option($this->_parser,XML_OPTION_CASE_FOLDING,false);
> xml_set_element_handler($this->_parser,"tag_open","tag_close");
> xml_set_character_data_handler($this->_parser,"tag_data");
> xml_set_default_handler($this->_parser,"tag_data");
> }
>
> //get XML data from file...
> function file_read($xml_file){
> if(file_exists($xml_file)){
> $this->_xml_data=implode("",file($xml_file));
> }
> return 1;
> }
>
> //parse XML data...
> function parse($xml_data=0){
> if($xml_data)$this->_xml_data=$xml_data;
> xml_parse($this->_parser,$this->_xml_data);
> xml_parser_free($this->_parser);
> return 1;
> }
>
> function tag_open($parser,$name,$attrs){
> //create new tag...
> $tag=new XML_TAG(&$this->_actual_tag);
> $tag->_name=$name;
> $tag->_param=$attrs;
>
> //add tag object to parent/actual tag object...
> if(is_a($this->_actual_tag,"XML_TAG")){
>
> ///////////////-----------LINE
> 66: --------------///////////////////////////////////////
>
> if(is_object($this->_actual_tag->$name) ||
> is_array($this->_actual_tag->$name)){
>
>
////////////////////////////////////////////////////////////////////////////
> ////////////////
>
> //same child objects -> Array...
> $last_index=$this->_actual_tag->new_child_array($tag,$name);
> $this->_actual_tag=&$this->_actual_tag->{$name}[$last_index];
> }else{
> //add new child object to actual tag...
> $this->_actual_tag->new_child($tag,$name);
> $this->_actual_tag=&$this->_actual_tag->$name;
> }
> }else{
> //copy first tag object in this object...
> $this->$name=$tag;
> $this->_actual_tag=&$this->{$name};
> }
> return 1;
> }
>
> function tag_data($parser,$string){
> if(strlen(trim($string))>0)$this->_actual_tag->_value=$string;
> return 1;
> }
>
> function tag_close($parser,$name){
> $this->_actual_tag=&$this->_actual_tag->_parent;
> return 1;
> }
>
> //Debug...
> function debug($exit=0){
> echo "<pre>";
> print_r($this);
> echo "</pre>";
> if($exit)exit;
> }
> }
>
> class XML_TAG{
> var $_parent;
> var $_name;
> var $_value;
> var $_param;
>
> //Constructor...
> function xml_tag($parent){
> $this->_parent=&$parent;
> $this->_name="";
> $this->_value=false;
> $this->_param=Array();
> return 1;
> }
>
> //simply add ne child to this object...
> function new_child($child,$child_name){
> $this->$child_name=&$child;
> }
>
> //add child array for more same childs to this object...
> function new_child_array($child,$child_name){
> //create array and set old child object to the first array element...
> if(is_object($this->$child_name)){
> $tmp_obj=$this->$child_name;
> $this->$child_name=Array();
> $this->new_child_array($tmp_obj,$child_name);
> }
> //push child reference into child array...
> $this->{$child_name}[]=&$child;
> $last_index=count($this->$child_name)-1;
> return $last_index;
> }
>
> //Debug...
> function debug(){
> echo "<pre>";
> print_r($this);
> echo "</pre>";
> }
> }
> ?>
>
> Thank you very much again,
> Ines
>
> -------------------------------------
>
> Hi,
>
> Sorry for the late response. Put your PHP where your $this->x=... is.
> This will give you a widget file like the following. Note that I will
> skip some part of the code to make the message shorter.
>
> function ParseURL()
> {
> // execute parent function
> parent::ParseURL();
>
> // work some magic
> if ( $this->isVarSet( "NAV_CMD" ) &&
> $this->getVar( "NAV_CMD" ) == 'UUW' )
> {
> if ( $this->mszCoords == 'aa')
> {
>
> /////////////////////////////
> // Put your code here
> /////////////////////////////
> $xml_file="./archivo4.xml";
> $xml_data=implode("",file($xml_file));
>
> //[...snip...]
>
> for($j = 0; $j < $tot_b; $j++)
> {
> $sc_name =
$xml->response->content->record[$j]->ScientificName->_value;
>
> if($sc_name == "Inga oerstediana")
> {
>
> /////////////////////////////////////////////////////
> /// Here//////////////
> ////////////////////////////////////////////////
> $sc_name2=
$xml->response->content->record[$j]->ScientificName->_value;
> $this->y= $xml->response->content->record[$j]->Latitude->_value;
> $this->x= $xml->response->content->record[$j]->Longitude->_value;
> }
> }
> }
> else
> {
> //////////////////// Note that! /////////
> return false;
> }
>
>
> }
> else
> {
> //////////////////// Note that! /////////
> return false;
> }
> }
> else
> {
> //////////////////// Note that! /////////
> return false;
> }
>
> //$this->lb = $this->getVar('especie');
>
> if ($this->isVarSet('espe') == 0)
> {
> $this->lb = "no";
> }
> else
> {
> $this->lb = $this->getVar('espe');
> }
>
> $poLayer = $this->moMapObject->oMap->getLayerByName('pointlatlon');
> //[...snip...]
>
>
>
> Ines wrote:
>
>>Hi, I'm customizing my widget and have to include a php code in it to take
>>the value of differents variables. I need to know in which place of the
>>widget have I to write the code.
>>
>>This is my objective:
>>
>>1) I have my custom widget yet. The objective of the widget is take a
>>longitude and latitude (x, y) an draw a point in the map in that coords. I
>>have this code and it works very well and I can see the point in the map.
>
> I
>
>>solved it in the ParseURL() function but using x,y coords (variables) with
>
> a
>
>>fixed value to prove. Ex: $this->x = -85; $this->y = 13;
>>
>>2) Now, I have to take that values from a XML file to make the values of x
>>and y variables (change the values of x and y) for draw the point layer in
>>another coords. I have the code in php to read my XML file and it works
>
> very
>
>>good, but not into the widget.
>>
>>3) My question is: In wich place or where do I have to put my php code (to
>>read my xml file) in the widget? to use the value of the variables that
>
> read
>
>>the xml file of my php code. I need to join the widget with my php code. I
>>see the widget have many functions. I tried to copy-paste my php code in
>>the ParseUrl() function but it show me errors.
>>
>>
>
> --
> Julien-Samuel Lacroix
> Mapgears
> http://www.mapgears.com/
>
> _______________________________________________
> Chameleon mailing list
> Chameleon at lists.maptools.org
> http://lists.maptools.org/mailman/listinfo/chameleon
--
Julien-Samuel Lacroix
Mapgears
http://www.mapgears.com/
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