CodeIgniter Query Result as Straight Array -

i have function in codeigniter model , want put/copy 'active_date' record value 'event_date' (in same row match query). tried give 'event_date' straight value , it's work. have no idea query result. thanks!

public function postx_model()   {        $data = array(       'last_status' => $this->input->post('status'),       );      if( $this->input->post('status') == 'active' )     {        $this->db->select('active_date');        $this->db->where('customer_code', $this->input->post('customer_code') );        $query = $this->db->get('customer_table');      $data2 = array(     'event_date' => $query,     //'event_date' => '2013-09-14', //this work       );        $datacomplete = $data + $data2;       $this->db->where('customer_code', $this->input->post('customer_code') );       $this->db->update('customer_table', $datacomplete);      }     else     {     $this->db->where('customer_code', $this->input->post('customer_code') );     $this->db->update('customer_table', $data);      }   } 

something this:

$query = $this->db->select('active_date') ->from('customer_table') ->where('customer_code', $this->input->post('customer_code')) ->get()->row_array(); $data2 = array('event_date' => $query['active_date']);