Get image url from model good practice?

Is this method a good practice?

Controller:

PHP Code:

$produse = $this->produse->entries_by_limit((($page-1) * $config_pagina['per_page']),
 $config_pagina['per_page'], $order_by, '270'); 


Model:

PHP Code:

   function entries_by_limit($start, $limit, $order_by = "order by id_produs asc", $rez) {
        $this->db->select('a.*');
        $this->db->select('b.nume_imagine', false);
        $this->db->from("$this->_table a");
        $this->db->join('imagini_produse b', "b.$this->_primary_key = a.id_produs", "left");
        $this->db->limit($limit, $start);
        $this->db->order_by($order_by);
        $result = $this->db->get();

        foreach($result->result() as $single) {

         if($single->nume_imagine):
         $single->nume_imagine = base_url('assets/uploads/'.$single->id_produs.'/'.$this->parse_image($single->nume_imagine, $rez));
            else:
                $single->nume_imagine = base_url('assets/images/no-product-image-available.png');
            endif;
        }

        return $result->result();
    }


    function parse_image($image_name, $rez){
        $image = explode('.', $image_name);
        return $image[0].'_'.$rez.'.'.$image[1];

    } 


and view

PHP Code:

<img class="primary-image" src="<?= $produs->nume_imagine ?>" alt=""> 


Should I use any helper or is ok like this?