Without yii2 activerecord trait

usage.php

<?php

class User extends ActiveRecord {
    public function getPosts() {
        return $this->hasMany(Post::className(), ['userId' => 'id']);
    }
}

/**
 * This one fetch all users without posts
 */
User::find()->without('posts')->all();

WithoutTrait.php

<?php

namespace common\ActiveRecordTrait;


use yii\db\ActiveQuery;
use yii\db\ActiveRecord;

trait WithoutTrait
{
    /**
     * @param string $relation
     * @param string $alias
     * @return $this
     */
    public function without($relation, $alias = '')
    {
        /** @var $this ActiveQuery */
        $modelClass = $this->modelClass;
        /** @var ActiveRecord $model */
        $model = new $modelClass();
        $modelClass = $model->getRelation($relation)->modelClass;
        /** @var ActiveRecord $modelClass */
        $tableName = $modelClass::tableName();

        $this->joinWith([
            $relation => function($query) use ($tableName, $alias) {
                /** @var ActiveQuery $query */
                $query->on = $query->where;
                if ($alias) {
                    $query->alias($alias);
                    $query->on = self::injectAlias($query->on, $tableName, $alias);
                }
                
                return $query->where([($alias ? $alias : $tableName) . '.id' => null])->orderBy(null);
            }
        ], false);

        return $this;
    }

    /**
     * Replace $tableName to $alias in $parseQuery
     * @param array $parseQuery
     * @param string $tableName
     * @param string $alias
     * @return array
     */
    protected static function injectAlias($parseQuery, $tableName, $alias)
    {
        foreach ($parseQuery as $key => $val) {
            if (is_array($val)) {
                $parseQuery[$key] = self::injectAlias($val, $tableName, $alias);
            }
            if (is_string($key)) {
                $newKey = str_replace($tableName . '.', $alias . '.', $key);
                $parseQuery[$newKey] = $val;
                unset($parseQuery[$key]);
            }
        }

        return $parseQuery;
    }
}