Денис А.

class OrganizationsSearch extends Organizations
{

    public $parent_short_name;

    /**
     * @inheritdoc
     */
    public function rules()
    {
        return [
            [['parent_short_name'], 'string'],

            // other rules
        ];
    }


    public function search($params)
    {
        $query = Organizations::find();
        $query->alias('org');

        $dataProvider = new ActiveDataProvider([
            'query' => $query,
        ]);

        $query->joinWith(['parentOrganization' => function($q) {
            /**
             * @var ActiveQuery $q
             */

            $q->alias('par_org');
        }]);

        $this->load($params);

        $dataProvider->setSort([
            'attributes' => [
                'parent_short_name' => [
                    'asc' => ['par_org.short_name' => SORT_ASC],
                    'desc' => ['par_org.short_name' => SORT_DESC],
                ],

                // other attributes
            ],
            'defaultOrder' => [
                // defaultOrders
            ],
        ]);

        if (!$this->validate()) {
            return $dataProvider;
        }

        $query->andFilterWhere(['ilike', 'org.short_name', $this->short_name]);
        $query->andFilterWhere(['ilike', 'par_org.short_name', $this->parent_short_name]);

        return $dataProvider;
    }
}

User::find()
  ->where('created_at=updated_at')
  ->all();

$dhb->setAttribute( PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION );

$(document).on('beforeSubmit', '#my-form', function () {
        var _this = $(this);

        $.ajax({
            url: _this.attr('action'),
            data: _this.serialize(),
            type: 'POST',
            dataType: 'json',
            success: function (response) {
                if (response.success) {
                    $.pjax.reload({
                          container: "#my-pjax-container-id" 
                    });
                } else {
                    // alert
                }
            },
            error: function (jqXHR, textStatus, errorThrown) {
                console.info(textStatus + ' ' + errorThrown);
            }
        });

        return false;
    });

$('from [name="address"]').keyup(function(){
    if($(this).val().toLowerCase().indexOf('москва') > -1) {
          $('form select').html('<option>1</option><option>2</option>');
    }
});

но в БД записывается одно и то же значение (2498) во все поля.