How to display data in a product card from a new mysql table?

Question

MySQL

People, help)))
In short, I'm making new fields for the product card, namely two multilingual fields (Question, answer)

I created a new table with the product ID, language ID and 2 columns for the question and answer.

In the admin panel in the model, controller, view everything was registered.
As a result, everything is updated, added, displayed, but it is in the admin panel (Everything is super)

Next, I need to display this in a template. And then I'm in a panic.

I copied the query from the admin model and pasted it into the catalog model

public function getProductFaq($product_id) {
    $faq_description_data = array();

    $query = $this->db->query("SELECT * FROM " . DB_PREFIX . "product_faq WHERE product_id = '" . (int)$product_id . "'");

    foreach ($query->rows as $result) {
      $faq_description_data[$result['language_id']] = array(
        'text'  => $result['text'],
        'ask'  => $result['ask'],
      );
    }

    return $faq_description_data;
  }

Further, I cannot formulate a query in the controller and the catalog view.

Tell me what to do? I’ve been sitting for 2 days (

And is it true that I copied the request from the admin panel model to the catalog model?) Judging by the logic, this is normal, right?)