User Defined Function in VOLT

Question

User Defined Function in VOLT

MGregorPMI Oct '15

Created Oct '15	Last Reply Oct '15	Replies 5	Views 1305	Votes 1

MGregorPMI 1.4k

Oct '15

according to phalcon docs,

 $compiler->addFunction('widget', function ($resolvedArgs, $exprArgs) {
    return 'MyLibrary\Widgets::get(' . $resolvedArgs . ')';
});

I have a class with some general functions located at app/lib/general.php

How should I register a random function withing that class in volt?

$compiler->addFunction(
                'itemStatus',
                function ($resolvedArgs, $exprArgs) {
                    return "\\lib\\general.php\\general::_GetStatus({$resolvedArgs})";
                }
            );

Please Step by Step.

Thanks

1

Nikolay Mihaylov
93.7k

Accepted
answer

edited Oct '15
Oct '15

Define namespace on top of your file

namespace Lib;

If its still not working you may consider uploading your code to Github so we can view and help :)

Nikolay Mihaylov · Answer 1 · 2015-10-23T06:56:32-07:00

$compiler->addFunction(
    'itemStatus',
    function ($resolvedArgs, $exprArgs) {
        return 'Lib\General::functionName('. $resolvedArgs .')';
    }
);

Having the above setup:

Lib - is your namespace, you should register it if you did not. Like so for example:

    public function registerAutoloaders()
    {   
        $loader = new \Phalcon\Loader();
        $loader->registerNamespaces(array(
            'Lib' => __DIR__ . '/app/lib/', 
        ));
        $loader->register();
    }

General - is the classname ;

And in volt you can call it like:

{{ functionName(voltVariable) }}

MGregorPMI · Answer 2 · 2015-10-23T07:29:18-07:00

Thanks for your answer but its not working... What am I doing wrong?

my services.php

<?php
$compiler->addFunction(
                'itemStatus',
                function ($resolvedArgs, $exprArgs) {
                    return 'Lib\General::_GetStatus('. $resolvedArgs .')';
                }
            );
?>

my loader.php

<?php
$loader->registerNamespaces(array(
            'Lib' => __DIR__ . '/app/lib/general.php', 
));
?>

my volt

<td>{{ itemStatus (item.status) }}</td>

Error: Fatal error: Class 'Lib\General' not found

Nikolay Mihaylov · Answer 3 · 2015-10-23T07:33:14-07:00

Try changing your namespace declaration to:

<?php
$loader->registerNamespaces(array(
            'Lib' => __DIR__ . '/app/lib/', 
));
?>

Also could you show me your project folder structure, its something with the path.

MGregorPMI · Answer 4 · 2015-10-23T09:22:58-07:00

Here goes my folder structure

project/app/

cache
config
controllers
lib <---- here is located general.php which has the class General
migrations
models
views

project/public
- css
- img
- ...

Nikolay Mihaylov · Answer 5 · 2015-10-23T10:42:15-07:00

If your index.php is in project/public the namespace path should be:

 'Lib' => __DIR__ . '/../app/lib/',

MGregorPMI · Answer 6 · 2015-10-23T10:55:05-07:00

Still not working =//

In general.php (class General) should I write something? like namespace ?

MGregorPMI · Answer 7 · 2015-10-23T11:31:05-07:00

<3 Thank you!!!

I have more issues, can I ask?

1 - How do I use the same class in any controller? 2 - How do I divide the views into backend and frontend? For example.... https://mysite.com redirects to frontend and https://mysite.com/admin redirects to backend.

Thanls

Nikolay Mihaylov · Answer 8 · 2015-10-23T11:37:47-07:00

Glad you made it! :)

You can mark this as resolved, so other people with your problem may find it useful.

About your new questions you can view phalcon skeleton examples here: https://github.com/phalcon/mvc

In the list multiple will answer your 1 and 2 questions. If you need any other help you can create new topic with the corresponding title, because it gets really messy to heave multiple questions in 1 topic :)