[mapguide-users] Passing variables into MGOS [No Viruses detected]

[Tom Chadwin]

Hi Mauricio

I've followed your instructions (MGOS2.0, W2K3, IIS, PHP), but the value of
externalParam is not appearing in the taskframe FRAME tag SRC value. See
http://maps.northumberlandnationalpark.org.uk:443?externalParam=test/
(assuming I've got the networking right for it to be externally visible).

Any ideas what I should check to get this working?

Thanks

Tom



Mauricio Villablanca wrote:
> 
> A little bit late here's how you pass ONE parameter to Mapguide:
> 
> Mapguide creates internal parameters when a web layout is loaded. External
> parameters can be sent to Mapguide Open Source by modifying the Mapguide
> API and editing the files mainframe.php, taskframe.php, mainframe.templ.
> taskframe.templ. The PHP scripts are located under www/mapviewerphp and
> the templates under www/viewerfiles in the Mapguide installation folder.
> 
> mainframe.templ and mainframe.php:
> The mainframe.php script loads and formats the mainframe.templ template
> when a web layout is viewed in the browser. The following change must be
> made to the template:
> 
> Add the parameter as variable at the beginning of the script, i.e.: 
> var externalParam = '%s';
> The %s wildcard represents a variable which value will be inserted in that
> line when the template is loaded via the sprintf PHP function.
> 
> Add the variable representing the parameter to the params array populated
> in the AddStdParams function, i.e.
> 	params.push("externalParam");  params.push(externalParam);
> 
> Add the variable representing the parameter to the URL generated in the
> MakeUrl function, i.e.
> 	url += ..... + "&externalParam=" + externalParam;
> 
> Once the template has been updated, proceed to edit the mainframe.php
> script. Declare a variable at the beginning of the Mainframe.php script,
> i.e. 
> $externalParam = '';
> 
> Then declare it as a global variable in the BuildViewer function, i.e.
> global $externalParam;
> 
> The variable is then passed to the task pane when Mapguide loads the
> layout by modifying the $srcTaskFrame variable and adding the parameter to
> the URL, i.e.
> $srcTaskFrame = <code>   . '&externalParam=' . $externalParam . <code>
> 
> The variable that represents the parameter must also be added to the
> $templ variable when formatting the mainframe.templ template by inserting
> the variable in the correct order, i.e.
> print sprintf($templ, <variables>, $externalParam, <variables>
> 
> Then declare a global variable representing the parameter in the
> GetParameters function and set it, i.e.
> 	if(isset($params['externalParam'])) {
>        		 $externalParam = $params['externalParam'];
>     	} else { externalParam = '';}
> 
> taskframe.templ and taskframe.php:
> The mainframe.php script also executes the taskFrame.php script that
> formats the taskframe.templ template when a web layout is viewed in the
> browser. The following change must be made to the template:
> 
> Add the additional parameter to the source of the taskPaneFrame frame at
> the end of the remplate, i.e.:
> Src=”... &LOCALE=%s&externalParam=%s" noresize>
> 
> Make the following changes to the the taskframe.php script:
> Declare the variable that represents the parameter at the beginning of the
> script, i.e.:
> $externalParam = '';
> Add the same variable in the correct order to the sprintf function that
> formats the taskframe.templ template, i.e.:
> sprintf($templ, GetSurroundVirtualPath() . "tasklist.php", $locale,
> $taskPane, $session, urlencode($webLayout), $dwf, $locale,
> $externalParam);
> 
> Declare and set the same variable in the GetParameters fuction, i.e.:
> global $externalParam;
> Then
> $externalParam = $params['externalParam'];
> 	
> After these changes, pass a parameter to Mapguide by adding the parameter
> to the web layout’s URL, e.g.
> http://server/mapguide/mapviewerajax/?WEBLAYOUT=Library%3a%2f%2ftest%2fWeb_Layouts%2fAll.WebLayout&LOCALE=en&externalParam=foo.
> 
> The external parameter will be passed to the task frame when Mapguide
> loads a web layout. If it’s not added, Mapguide will set it as a empty
> string.
> 
> 

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