XF 2.1 Add new custom thread field

[shqawe]

I'm trying to add user group as thread field which user who has permission can choose the group. My problem is how can i insert user group ids to database

This is my code

<xf:selectrow name="usergroup[]" value="{$thread.usergroup}" label="{{ phrase('choose_ug') }}" multiple="multiple">
    <xf:option value="0">{{ phrase('All') }}</xf:option>
    <xf:foreach loop="$thread.getUserGrups()" value="$userg">
            <xf:option value="{$userg.user_group_id}">{$userg.title}</xf:option>
    </xf:foreach>
</xf:selectrow>

Thread controller

protected function setupThreadEdit(\XF\Entity\Thread $thread)
    {
      
        $editor = parent::setupThreadEdit($thread);
        
        $canChooseUserGroups = $thread->canChooseUserGroups();
        if ($canChooseUserGroups)
        {
            $editor->setCanChoseGroups($this->filter('usergroup', 'int'));
        }

        return $editor;
    }

Forum Controller

protected function setupThreadCreate(\XF\Entity\Forum $forum)
    {
        
        $creator = parent::setupThreadCreate($forum);

        $creator->setCanChoseGroups($this->filter('usergroup', 'int'));
      
        return $creator;
    }

Service Editor

protected $userGroup;

    public function setCanChoseGroups($userGroup)
    {
        $this->userGroup = $userGroup;
    }

    protected function _save()
    {
        $thread = parent::_save();

        if ($this->userGroup !== null && $thread->discussion_state == 'visible')
        {

            
            if (!$this->userGroup)
            {
                    $thread->fastUpdate('usergroup', true);
            }
            else
            {
                    $thread->fastUpdate('usergroup', false);
            }
        }

        return $thread;
    }

Service Creator

protected $userGroup;

    public function setCanChoseGroups($userGroup)
    {
        $this->userGroup = $userGroup;
    }

    protected function _save()
    {
        $thread = parent::_save();

        if ($this->userGroup !== null)
        {
            $thread->fastUpdate('usergroup', true);         
        }

        return $thread;
    }

Event Listener

$structure->columns['usergroup'] = ['type' => Entity::UINT, 'default' => 0];

I hope someone can help.

 

[shqawe]

@Chris D @Mike
Can you help me in this please