update

application/models/Form_fields_model.php

@@ -0,0 +1,17 @@
+<?php
+defined('BASEPATH') OR exit('No direct script access allowed');
+
+class Form_fields_model extends CI_Model
+{
+    protected $table = 'form_fields';
+
+    public function get_active_fields($form_key)
+    {
+        return $this->db
+            ->where('form_key', $form_key)
+            ->where('active', 1)
+            ->order_by('field_order', 'ASC')
+            ->get($this->table)
+            ->result_array();
+    }
+}