App Params

Since EspoCRM 5.8.0.

App params are returned by backend once a user logged in. You can use this params in frontend. For example, the list of entity types available for printing to PDF.

Custom app params

You can make the system to return custom parameters. This params can be unique for a current user (different user have different values in params).

Create a file: custom/Espo/Custom/Resources/metadata/app/appParams.json

{
    "myParam": {
        "className": "\\Espo\\Custom\\Core\\AppParams\\MyParam"
    }
}

Create a file custom/Espo/Custom/Core/AppParams/MyParam.php

<?php
namespace Espo\Custom\Core\AppParams;

class MyParam extends \Espo\Core\Injectable
{
    protected function init()
    {
        // define needed dependencies
        $this->addDependency('acl');
        $this->addDependency('entityManager');
    }

    public function get()
    {
        $acl = $this->getInjection('acl');
        $em = $this->getInjection('entityManager');

        $value = null;

        // here some logic

        return $value;
    }

Clear cache.

In frontend in view you can access your parameter the following way:

    this.getHelper().getAppParam('myParam');