phpeveryday.com

First, create a function for deleting data at model.

  function delete($id){
    $this->load->database();
    $this->db->delete('books', array('id' => $id)); 
  }

Then, create a function for deleting data at controller:

  function del($id){
    $this->load->library('table');
	$this->load->helper('html');	
	$this->load->model('books_model');
	
	if((int)$id > 0){
  	  $this->books_model->delete($id);
	}
	
	$data = $this->books_model->general();
	$data['query'] = $this->books_model->books_getall();
		
	$this->load->view('books_main',$data);    
  }