taskentity.php

См. документацию.

<?php
 
namespace Bitrix\Forum\Comments;
 
use Bitrix\Main\Config\Option;
use Bitrix\Main\Loader;
 
final class TaskEntity extends Entity
{
    public const ENTITY_TYPE = 'tk';
    const MODULE_ID = 'tasks';
    public const XML_ID_PREFIX = 'TASK_';
 
    private $taskPostData;
    private $hasAccess;
 
    protected static $permissions = array();

    public function canRead($userId)
    {
        // you are not allowed to view the task, so you can not read messages
        if(!$this->checkHasAccess($userId))
        {
            return false;
        }
 
        return true;
    }

    public function canAdd($userId)
    {
        // you are not allowed to view the task, so you can not add new messages
        if(!$this->checkHasAccess($userId))
        {
            return false;
        }
 
        return true;
    }

    public function canEditOwn($userId)
    {
        // in case of canEdit($userId) returns FALSE, canEditOwn($userId) may override this
 
        // if you are not an admin, you must obey "tasks" module settings
        if(!static::checkEditOptionIsOn())
        {
            return false;
        }
 
        // if you are not an admin AND you are not allowed to view the task, you cant edit even your own comments
        if(!$this->checkHasAccess($userId))
        {
            return false;
        }
 
        return true;
    }

    public function canEdit($userId)
    {
        // admin is always able to edit\remove comments
        if (
            Loader::includeModule("tasks")
            && (
                \CTasksTools::isAdmin($userId)
                || \CTasksTools::isPortalB24Admin($userId)
            )
        )
        {
            return true;
        }
 
        return false;
    }

    public function dropCache()
    {
        $this->taskPostData = null;
        $this->hasAccess = null;
        return $this;
    }

    private function checkHasAccess($userId)
    {
        if($this->hasAccess === null)
        {
            try
            {
                if (Loader::includeModule("tasks"))
                {
                    $task = new \CTaskItem($this->getId(), $userId);
                    $this->hasAccess = $task->checkCanRead();
                }
                else
                {
                    return false;
                }
 
            }
            catch(\TasksException | \CTaskAssertException $e)
            {
                return false;
            }
        }
 
        return $this->hasAccess;
    }
 
    private static function checkEditOptionIsOn()
    {
        $value = Option::get("tasks", "task_comment_allow_edit");
 
        return $value == 'Y' || $value == '1';
    }

    public static function onMessageIsIndexed($id, array $message, array &$index)
    {
        if ($message["PARAM1"] == mb_strtoupper(self::ENTITY_TYPE))
        {
            return false;
        }
 
        if (
            preg_match("/".self::getXmlIdPrefix()."(\\d+)/", $message["XML_ID"], $matches) &&
            ($taskId = intval($matches[1])) &&
            $taskId > 0 &&
            !array_key_exists($taskId, self::$permissions)
        )
        {
            self::$permissions[$taskId] = [];
            if ($task = \CTasks::GetList(array(), array("ID" => $taskId))->fetch())
            {
                self::$permissions[$taskId] = \CTasks::__GetSearchPermissions($task);
            }
        }
 
        $index["PERMISSIONS"] = self::$permissions[$taskId];
        return sizeof(self::$permissions[$taskId]) > 0;
    }
}