API index_get

public function index_get() {
        // Users from a data store e.g. database

        $id = $this->get('id');

        // If the id parameter doesn't exist return all the users

        if ($id === NULL)
        {

            $users = $this->db->get("list_dokter")->result_array();

            // Check if the users data store contains users (in case the database result returns NULL)
            if ($users)
            {
                // Set the response and exit
                $this->response($users, REST_Controller::HTTP_OK); // OK (200) being the HTTP response code
            }
            else
            {
                // Set the response and exit
                $this->response([
                    'status' => FALSE,
                    'message' => 'No users were found'
                ], REST_Controller::HTTP_NOT_FOUND); // NOT_FOUND (404) being the HTTP response code
            }
        }

        // Find and return a single record for a particular user.
        else {
            $id = (int) $id;

            // Validate the id.
            if ($id <= 0)
            {
                // Invalid id, set the response and exit.
                $this->response(NULL, REST_Controller::HTTP_BAD_REQUEST); // BAD_REQUEST (400) being the HTTP response code
            }

            // Get the user from the array, using the id as key for retrieval.
            // Usually a model is to be used for this.

            $this->db->where(array("id_dokter" => $id));
            $users = $this->db->get("list_dokter") -> row_array();

            $this->response($users, REST_Controller::HTTP_OK);
        }

        // $id = $this->get('id_Dokter');

        // if ($id == '') {

        //     $data = $this->db->get('list_dokter')->result();

        // } else {

        //     $this->db->where('id_Dokter', $id);

        //     $data = $this->db->get('list_dokter')->result();

        // }

        // $this->response($data, 200);

    }