CodeIgniter 自带分类详解及如何一直显示首页和尾页

╰+攻爆jí腚メ 2024-02-19 21:32 55阅读 0赞

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();?>