[Chameleon] How to include (join) php code in custom widget
Julien-Samuel Lacroix
jlacroix at mapgears.com
Thu Jan 25 09:56:56 EST 2007
There's probably a php error and your php installation is probably
configured to not show them.
Try adding the following at the begining of your index.phtml file (or
whatever the file name is):
error_reporting(E_ALL);
Julien
Ines wrote:
> 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/
>
> _______________________________________________
> 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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