CodeIgniter 自带分类详解及如何一直显示首页和尾页

控制器

如想一直显示首页和尾页--》打开分页类318行改成if ($this->last_link !== FALSE)

首页229行改成 if  ($this->first_link !== FALSE )

就是说去掉后边的and判断

public function index($p=1){
// $data['news'] = $this->news_model->get_news();
//echo $p;
$data['title'] = '标题';

//分页使用
$res = $this->db->get('news');//进行一次查询
$config['base_url'] = '/ci/index.php/news/index';//设置分页的url路径
$config['uri_segment'] = 3; //设置url上第几段用于传递分页器的偏移量
$config['total_rows'] = $res->num_rows();//得到数据库中的记录的总条数
$config['per_page'] = '2';//每页记录数
$config['first_link'] = '首页';
$config['last_link'] = '尾页';
$config['full_tag_open'] = '<p>';
$config['full_tag_close'] = '</p>';
$config['next_link'] = '下一页';
$config['prev_link'] = '上一页';

$config['use_page_numbers'] = TRUE;//必须加上要不页码会乱...

//$config['num_links'] = 4;//配置分页导航当前页两边显示的条数
$start=($p-1)*$config['per_page'];

$this->pagination->initialize($config);//分页的初始化
//$data['news']= $this->news_model->get_news($config['per_page'],$this->uri->segment(3));//得到数据库记录
$data['news']= $this->news_model->get_news($config['per_page'],$start);//得到数据库记录

//分页结束
$this->load->view('templates/header', $data);
$this->load->view('news/index', $data);
$this->load->view('templates/footer');
}

public function view($id){
$data['news_item'] = $this->news_model->view_news($id);

if (empty($data['news_item']))
{
show_404();
}

$data['title'] = $data['news_item']['title'];

$this->load->view('templates/header', $data);
$this->load->view('news/view', $data);
$this->load->view('templates/footer');
}

public function create()
{
$this->load->helper('form');
$this->load->library('form_validation');

$data['title'] = 'Create a news item';

$this->form_validation->set_rules('title', 'Title', 'required');
$this->form_validation->set_rules('text', 'text', 'required');

if ($this->form_validation->run() === FALSE)
{
$this->load->view('templates/header', $data);
$this->load->view('news/create');
$this->load->view('templates/footer');

}
else
{
$this->news_model->set_news();
$this->load->view('news/success');
}
}

模型

<?php
class News_model extends CI_Model {

public function __construct()
{
$this->load->database();
}

public function get_news($num,$offset){
//从数据库中取数据，$num表示取得的数目，$offset表示从什么地方开始取
$query = $this->db->get('news',$num,$offset);
return $query->result_array();

/*  if ($slug === FALSE)
{
$query = $this->db->get('news');
return $query->result_array();
}

$query = $this->db->get_where('news', array('slug' => $slug));
return $query->row_array();
*/
}

public function view_news($id)
{
$query = $this->db->get_where('news', array('id' => $id));
return $query->row_array();
}

public function set_news()
{
$this->load->helper('url');

$slug = url_title($this->input->post('title'), 'dash', TRUE);

$data = array(
'title' => $this->input->post('title'),
'slug' => $slug,
'text' => $this->input->post('text')
);

return $this->db->insert('news', $data);
}
}

视图

<?php foreach ($news as $news_item): ?>

<h2><?php echo $news_item['title'] ?></h2>
<div id="main">
<?php echo $news_item['text'] ?>
</div>
<p><a href="/ci/index.php/news/view/<?php echo $news_item['id'] ?>">
View article 详细信息</a></p>

<?php endforeach ?>

<hr>
<?php echo $this->pagination->create_links();?>