Impossible to transmit variable by GET

[Komortie]

(I’m not a native english speaker)

Hello,

I have a little problem in a new app that I try to dev.
I would like to use a variable sent by GET in url.

For exemple :
http://localhost/egroupware/index.php?cd=yes&hello=yes

And check if “hello” exist, and is containt.

But, when I check if “hello” exist, by :

if (isset($_GET['hello'])) {
    echo '<h1 style="background-color:#00FF00">Hello!! =D</h1>';
} else {
    echo '<h1 style="background-color:#FF0000">No Hello :(</h1>';
}

It’s always “No hello :(” appeared.

Thanks a lot for your help.
Fabien

[JDlugi]

Hi Fabien,

when I copy your code fragment into the …/egroupware/index.php file after

include('./header.inc.php');

just to test, it works for me as expected with following request:

...../egroupware/index.php?cd=yes&hello=3

But this was only for a quick test.
Where do you have placed your code fragment?

If you want to use GET variables in your app you have to place your fragment in the yourapp_ui file like you can see in the timesheet_ui file for example:

function edit($content = null,$view = false)
	{
		$etpl = new Etemplate('timesheet.edit');
		if (!is_array($content))
		{
			if ($_GET['msg']) $msg = strip_tags($_GET['msg']);

Jürgen

[JDlugi]

…to be more precise

It depends where you want to use the GET variable in your app

Commonly within the index function or as in the example above in the edit function, so the refering request is

...../egroupware/index.php?menuaction=timesheet.timesheet_ui.index&hello=3

or

...../egroupware/index.php?menuaction=timesheet.timesheet_ui.edit&ts_id=65&hello=3

refering to your app:

...../egroupware/index.php?menuaction=yourapp.yourapp_ui.index&hello=3

or

...../egroupware/index.php?menuaction=yourapp.yourapp_ui.edit&yourapp_dataset-id&hello=3

for not to be misunderstood, placing the code in …/egroupware/index.php is not the common way, I have done this just for a quick testing purpose

… being always a litte curious, what kind of app are you developing?

Jürgen

[Komortie]

Thanks a lot for all this informations !

Actually, I placed the code in /egroupware/my_app/index.php.
I have installed the app at the address http://localhost/egroupware/setup/ and I can access to them in the menu of Egroupware.

The apps is a very simple module for find et filter some informations of an other BDD.
So inside I have some forms and select, etc…

But, I need also to search some informations by URL, so for try to found how use get variable, I tried to create a new app with the name “variable_get”.

In index.php I use only this little code :

<?php

$GLOBALS['egw_info'] = array('flags' => array(
    'currentapp' => 'variable_get',
    'noheader' => false,
    'nonavbar' => false,
));

include('../header.inc.php');

if (isset($_GET['hello'])) {
    echo '<h1 style="background-color:#00FF00">HELLO !! =D</h1>';
} else {
    echo '<h1 style="background-color:#FF0000">NO HELLO :(</h1>';
}

echo "Hello world! <br />";

common::egw_footer();

I followed a part oh the documentation that I found here :
https://github.com/EGroupware/egroupware/wiki/CodeCorner1

But, "No Hello :(’ always, and I had also this error :

An error happened

Class 'common' not found

I think, I should use the “yourapp_ui file” that you tell in your first reply. I will try to do !

Thanks again !

[Komortie]

Thanks a lot JDlugi !

It’s works if I use the url on this format :
http://localhost/egroupware/index.php?menuaction=variable_get.variable_get_ui.index&hello=yes

And also if my code is in egroupware/variable_get/inc/class.variable_get_ui.inc.php

I will open a new topic for the problem with the error :

An error happened
Class 'common' not found

[JDlugi]

to give you a rough structure:

your yourapp_ui file should look minimal like this (could contain some syntax errors )

<?php

    // instructions for autoloading some maybe necessary parts of the egw api

    use EGroupware\Api;
    use EGroupware\Api\Link; // the link api may usefull for you if you want to collect infos from other apps
    use EGroupware\Api\Framework; // this should eliminate for example your  Class 'common' not found error
    use EGroupware\Api\Acl;
    use EGroupware\Api\Etemplate; 

    class yourapp_ui // extends yourapp_bo -> no bo extend here: if you want only gather some infos from other modules for BDD, you can do all in the ui file, but it is not "nice"
    {
    	public $public_functions = array( // name here the functions which should accessable via url request
    			'index' => true,
    			);

    function __construct()
	{
		
		
		$GLOBALS ['egw_info'] ['flags'] ['app_header'] = 'My own app header ... blabla';
	}
   
    function index($content = null)
	{
		
// your GET test code could reside here

		if (is_array ($content)) // when no content ist provided, first call of index
		{
// or maybe here    			
			
		}
		else
		{
			// place to process a submitted form with $content
// also maybe here in terms of your processing locig
		}  		
            

		$tmpl = new etemplate_new ('yourapp.index');
		$tmpl->exec ('yourapp.yourapp_ui.index', $content, $selection_options); // more parameters available
	}
}

Most helpfull at the moment is the docu from Nilpferdschaf as also StefanU mentioned

Nilpferdschaf/Egroupware-Doku

It does not full accord the complete actual “coding style” but comes near 90% ;-).

I would recommend to load down the zip of code from the last chapter, install it in your egw instance and play around, rework it for your needs.

Jürgen

[JDlugi]

I will open a new topic for the problem with the error :

An error happened
Class ‘common’ not found

use EGroupware\Api\Framework; // this should eliminate for example your Class ‘common’ not found error