createEntitySearchQuery example

    public function searchAction()
    {
        $entity = $this->Request()->getParam('entity');
        $ids = $this->Request()->getParam('ids', []);
        $id = $this->Request()->getParam('id');
        $term = $this->Request()->getParam('query');
        $offset = $this->Request()->getParam('start', 0);
        $limit = $this->Request()->getParam('limit', 20);

        $builder = $this->createEntitySearchQuery($entity);

        if (!empty($ids)) {
            $ids = json_decode($ids, true);
            $this->addIdsCondition($builder, $ids);
        } elseif (!empty($id)) {
            $this->addIdsCondition($builder, [$id]);
        } else {
            if (!empty($term)) {
                $this->addSearchTermCondition($entity, $builder, $term);
            }