How to retreive a list of users and groups only by admins

[raceface2nd]

Hi,

I am not that familiar with PHP and so the API documentation is hard for me to understand. Within an app I need to retrieve a list of users and groups as JSON. Generally I got this working but not by using OCP\IGroupManager because I don't have a clue how to utilize it. Maybe somebody can help me with sample code? On the other hand I'd like to have this function only available to admins but I could not find a way to read out the isAdmin value with PHP.

What I did is more or less a workaround and I would appreciate any help to get it more OC-API-ish. Below is the code of my work around based on the app development tutorial.

controller/groupusercontroller.php

<?php
namespace OCA\OwnCollab_GanttChart\Controller;

use OCP\IRequest;
use OCP\AppFramework\Http\DataResponse;
use OCP\AppFramework\Http\JSONResponse;
use OCP\AppFramework\Controller;

use OCA\OwnCollab_GanttChart\Service\GroupUserService;

class GroupUserController extends Controller {
    private $service;
    private $userId;

    use Errors;

    /**
     * @NoAdminRequired
     * @param IGroupManager $groupManager
     * @param bool $isAdmin
    */
    public function __construct($AppName, IRequest $request, 
                                GroupUserService $service, $UserId){
        parent::__construct($AppName, $request);
        $this->service = $service;
        $this->userId = $UserId;
    }

    /**
     * @NoAdminRequired
     */
    public function json() {
	return new JSONResponse($this->service->findAll());
    }

    /**
     * @NoAdminRequired
     */
    public function index() {
	return new DataResponse($this->service->findAll());
    }

    /**
     * @NoAdminRequired
     *
     * @param int $gid
     */
    public function show($gid) {
        return $this->handleNotFound(function () use ($gid) {
            return $this->service->find($id);
        });
    }
}

service/groupuserservice.php

<?php
namespace OCA\OwnCollab_GanttChart\Service;

use Exception;

use OCP\AppFramework\Db\DoesNotExistException;
use OCP\AppFramework\Db\MultipleObjectsReturnedException;
use OCP\IGroupManager;

use OCA\OwnCollab_GanttChart\Db\GroupUser;
use OCA\OwnCollab_GanttChart\Db\GroupUserMapper;

class GroupUserService {

private $mapper;

public function __construct(GroupUserMapper $mapper){
    $this->mapper = $mapper;
}

public function findAll() {
    return $this->mapper->findAll();
}

private function handleException ($e) {
    if ($e instanceof DoesNotExistException ||
        $e instanceof MultipleObjectsReturnedException) {
        throw new NotFoundException($e->getMessage());
    } else {
        throw $e;
    }
}

public function find($gid) {
    try {
        return $this->mapper->find($gid);

    // in order to be able to plug in different storage backends like files
    // for instance it is a good idea to turn storage related exceptions
    // into service related exceptions so controllers and service users
    // have to deal with only one type of exception
    } catch(Exception $e) {
        $this->handleException($e);
    }
}

}

db/groupuser.php

<?php
namespace OCA\OwnCollab_GanttChart\Db;

use JsonSerializable;

use OCP\AppFramework\Db\Entity;

class GroupUser extends Entity implements JsonSerializable {

    protected $gid;
    protected $uid;

    public function jsonSerialize() {
        return [
            'gid' => $this->gid,
            'uid' => $this->uid;
        ];
    }
}

db/groupusermapper.php

<?php
namespace OCA\OwnCollab_GanttChart\Db;

use OCP\IDb;
use OCP\AppFramework\Db\Mapper;

class GroupUserMapper extends Mapper {

    public function __construct(IDb $db) {
        parent::__construct($db, 'group_user', '\OCA\OwnCollab_GanttChart\Db\GroupUser');
    }

    public function findAll() {
        $sql = 'SELECT * FROM *PREFIX*group_user';
        return $this->db->executeQuery($sql)->fetchAll();
    }
    
    public function find($gid) {
        $sql = 'SELECT * FROM *PREFIX*group_user WHERE gid = ?';
        return $this->executeQuery($sql, [$gid]);
    }

}

JS

if (OC.isUserAdmin() === true){
OCGantt.groupusers.loadAll().done(function(){});
}

OCGantt.GroupUsers = function (baseUrl) {
    this._baseUrl = baseUrl;
    this._groupusers = [];
    this._activeGroupUser = undefined;
};

OCGantt.GroupUsers.prototype = {
    load: function (id) {
        var self = this;
        this._groupusers.forEach(function (groupuser) {
            if (groupuser.gid === gid) {
                groupuser.active = true;
                self._activeGroupUser = groupuser;
            } else {
                groupuser.active = false;
            }
        });
    },
    getActive: function () {
        return this._activeGroupUser;
    },
    getAll: function () {
        return this._groupusers;
    },
    loadAll: function () {
        var deferred = $.Deferred();
        var self = this;
        $.get(this._baseUrl).done(function (groupusers) {
            self._activeGroupUser = undefined;
            self._groupusers = groupusers;
            deferred.resolve();
        }).fail(function () {
            deferred.reject();
        });
        return deferred.promise();
    },
};