I am a developer and maintainer for the CiviCRM project. We've been trying to make a Drupal 8 version CiviCRM, and have a come a long way. We're beating our heads against our collective keyboards trying to figure a major blocker for the project.
CiviCRM has used Symfony for a while, and the version that is included is different than what ships with Drupal.
We can get CiviCRM installed with Drupal 8, but after you install it, we cannot install any other Drupal module.
I believe it boils down to a situation where somehow the CiviCRM version of Symfony loads before the Drupal version, and this causes problems.
Does anyone know of a Drupal 8 module that includes a different version of Symfony than the one that ships with Drupal?
Recently I ran across the Ludwig project. This module allows the registering of namespaces in a class that extends
Would it be possible for the Drupal 8 version of the CiviCRM module to include a CivicrmServiceProvider.php file, which defines a
CivicrmServiceProvider class, and a
register() method that adds a container namespace to allow this to work?
Many CiviCRM files have
use statements like Drupal starting with Symfony, like here.
We actually put CiviCRM Core into Drupal doc_root/libraries folder, and use the libraries module.
This is the repo for the CiviCRM Drupal module 8.x version, if somebody wants to look at what we got so far. If somebody has the magic elixir for this, I can tell you there would be many happy folks in our community. So if you know how to help us, please do.
CiviCRM does install, and the CiviCRM pages do work. What doesn't work is that after CiviCRM is installed, we can't install other modules via the admin/modules page. As far as I know that's the only thing that is broken. Also installing modules with Drush, after installing CiviCRM, does work.
Trying to install another module after CiviCRM is installed causes the following error:
PHP Fatal error: Call to undefined method Symfony\Component\DependencyInjection\Definition::setFactory() in /var/www/html/civi-for-d8/core/lib/Drupal/Core/DependencyInjection/YamlFileLoader.php on line 206
That's in Drupal 8.3.5. Trying to install CiviCRM for Drupal 8 into a clean Drupal 8.4-dev instance causes the following error:
Drupal\Component\Serialization\Exception\InvalidDataTypeException: The reserved indicator "@" cannot start a plain scalar; you need to quote the scalar at line 8 (near "arguments: [@string_translation, @civicrm.page_state]"). in Drupal\Component\Serialization\YamlSymfony::decode() (line 40 of /var/www/html/drupal84/core/lib/Drupal/Component/Serialization/YamlSymfony.php).