[Chameleon] Globals

Julien-Samuel Lacroix jlacroix at mapgears.com
Wed May 17 13:33:13 EDT 2006


Hi,
Sorry I did not thought you were using AJAX. You should then use 
javascript variables. If you add javascript code like this, you can 
access javascript variables in the main window (not tested):

window.opener.javacript_variable = 'junk';

Can it do the trick?

Best regards,
Julien

Abbott,Arthur wrote:
> Again thanks for the reply,
> 
> The reason I wasnt seeing the updated session variable is that it seems that the session variable only updates on a page refresh.  Unfortunately, I'm using AJAX, so the page is not refreshing like it would normally. Thus the session variable does not update. When I disabled AJAX, the value showed up. The side effect is that once i update the <img> src, the page refreshes and the original image is once again displayed.
> 
> Is there a way to refresh the session variable without refreshing the page? I really need to keep the AJAX code...
> 
> thanks in advance,
> 
> Arthur
> 
> 
>>Hi,
>>First make sure that your code that assign value in the $_SESSION array
>>is after the serie of include_once() at the beginning of the file.
>>
>>Then in the Query.widget.php, in the ParseURL() function, try to do:
>>echo $_SESSION['junk'];
>>
>>You will see if the value is set or not. Note that the main page have to
>>reset somehow to re-process the widget. Is it the case?
>>
>>Julien
>>
>>Abbott,Arthur wrote:
>>Ok, I switched over to using a $SESSION variable. Unfortunately I have the same behaviour. When I try to use the value in QueryWidget that was supposed to be set in QueryResults, the value does not change. This is wierd since i know its changing in QueryResult. I echoed the value before and after and the value does change.
>>
>>  echo $_SESSION['junk'];
>>  $_SESSION['junk'] = $url;
>>  echo $_SESSION['junk'];
>>
>>Using this code, the value of session is changed and i can see the change, yet when im in QueryWidget I dont see the new value.
>>
>>I wonder, am i trying to use the variable in the wrong place? I am currently trying to use the value inside of the QueryWMouseClick function of QueryWidget. should I be trying to use it someplace else?
>>
>>Arthur
>>
>>
>>
>>
>>
>>>Hi,
>>>Since QueryResults.phtml is a script beside Chameleon (not in it), it is
>>>called in a different window. So the GLOBALS won't work. You need to use
>>>the $SESSION variables instead.
>>>
>>>Julien
>>>
>>>Abbott,Arthur wrote:
>>>Everyone,
>>>
>>>I'm currently working with the query widget I have code that finds a value within a shape file. This code
>>>is in QueryResult.phtml. I would like to pass the value back to Query.Widget.php. I thought about using
>>>global variables.
>>>
>>>I've placed the value in the $GLOBALS array inside QueryResult. When I'm back in Query.Widget the value is unchanged...
>>>
>>>I set the value in QueryResult with the line:               $GLOBALS['gblurl'] = $url;
>>>
>>>When I look at the value outside of QueryResult the value does not contain the value it should.  Am I looking at
>>>it in the wrong place? I'm currently examining the global at the end of the function that does the popup for the
>>>query widget...
>>>
>>>function {$szJsFunctionName}(e)
>>>{
>>>   if ({$this->mszHTMLForm}.NAV_CMD.value != "{$this->mszCmd}")
>>>       return true;
>>>    
>>>   MapWgetMouse(e);
>>>   if ( !MapWinsideMap() )
>>>       return true;
>>>   nX = {$this->mszHTMLForm}.MAP_CURSOR_POS_X.value;
>>>   nY = {$this->mszHTMLForm}.MAP_CURSOR_POS_Y.value;
>>>   szNav = "NAV_INPUT_COORDINATES=" + nX + "," + nY;
>>> 
>>>   if ({$szPopupResults})
>>>   {
>>>       szPopupURL = "{$szPopupURL}";
>>>       szPopupName = "{$szPopupName}";
>>>       szPopupOptions = "{$szPopupOptions}";
>>>       szPopupURL = szPopupURL + "&" + szNav;
>>>       window.open( szPopupURL, szPopupName, szPopupOptions );
>>>   }
>>>   if ({$szHighlightResults})
>>>   {
>>>       var queryCoords = nX + "," + nY;
>>>       var img = CWCDHTML_GetImage( 'MapLayerDivImg' );
>>>       img.src = gMapDHTMLURL + "&run_query=1&gszQueryCoords=" + queryCoords + "&gszPersistentQuery={$szPersistentResults}";
>>>       window.status = img.src;
>>>   }
>>>   if ("{$this->mszIFrameName}" != "" )
>>>   {
>>>       szPopupURL = "{$szPopupURL}";
>>>       szPopupURL = szPopupURL + "&" + szNav;
>>>       window.frames['{$this->mszIFrameName}'].location.href = szPopupURL + "&run_query=1";
>>>   }
>>>   if ({$szSubmitPage})
>>>   {
>>>       {$this->mszHTMLForm}.submit();
>>>   }
>>>   goEventManager.triggerEvent( 'ON_QUERY', nX, nY );
>>>
>>>   //Examine the contents of global value set in QueryResult
>>>   alert("{$GLOBALS['gblurl']}")
>>> 
>>>   return true;
>>>}
>>>
>>>If anybody has an idea as to why the value is not updating, it would be greatly appreciated,
>>>
>>>Arthur
>>>
>>>_______________________________________________
>>>Chameleon mailing list
>>>Chameleon at lists.maptools.org
>>>http://lists.maptools.org/mailman/listinfo/chameleon <https://webmail.nscc.ca/exchweb/bin/redir.asp?URL=http://lists.maptools.org/mailman/listinfo/chameleon>  <https://webmail.nscc.ca/exchweb/bin/redir.asp?URL=http://lists.maptools.org/mailman/listinfo/chameleon <https://webmail.nscc.ca/exchweb/bin/redir.asp?URL=https://webmail.nscc.ca/exchweb/bin/redir.asp?URL=http://lists.maptools.org/mailman/listinfo/chameleon> >
>>
>>
>>--
>>Julien-Samuel Lacroix
>>Mapgears
>>http://www.mapgears.com/ <https://webmail.nscc.ca/exchweb/bin/redir.asp?URL=http://www.mapgears.com/>  <https://webmail.nscc.ca/exchweb/bin/redir.asp?URL=http://www.mapgears.com/ <https://webmail.nscc.ca/exchweb/bin/redir.asp?URL=https://webmail.nscc.ca/exchweb/bin/redir.asp?URL=http://www.mapgears.com/> >
>>
>>
>>
>>_______________________________________________
>>Chameleon mailing list
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>>http://lists.maptools.org/mailman/listinfo/chameleon <https://webmail.nscc.ca/exchweb/bin/redir.asp?URL=http://lists.maptools.org/mailman/listinfo/chameleon> 
> 
> 
> --
> Julien-Samuel Lacroix
> Mapgears
> http://www.mapgears.com/ <https://webmail.nscc.ca/exchweb/bin/redir.asp?URL=http://www.mapgears.com/> 
> 
> 
> 
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-- 
Julien-Samuel Lacroix
Mapgears
http://www.mapgears.com/


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