php-CodeIgniter搜索结果分页

2019-11-22 03:31:23 阅读：162 来源： 互联网

标签：search codeigniter pagination php

好吧,我已经四处搜寻,但是仍然找不到解决我问题的方法.我还是php和codeigniter的新手,所以也许我已经错过了答案了,但是无论如何,这就是我想要做的.

这是我的控制器(c_index.php)-调用搜索函数并对结果数组执行分页.

<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');

class C_index extends CI_Controller {


public function __construct()
{
    parent::__construct();
    $this->load->model('m_search');
    $this->load->library("pagination");
    $this->load->library("table");
}
/** Index Page for this controller */
public function index()
{
    if($this->session->userdata('logged_in')){
        $this->load->view('v_user');    
    }   
    else{
        $this->load->view('index'); 
    }
}

public function search() 
{
            // start of search
    $search_term = $this->input->post('word');
    $books = $this->m_search->search_books($search_term);

            // start of pagination
    $config['base_url'] = "http://localhost/test/index.php/c_index/search";
    $config['per_page'] = 5;
    $config['num_links'] = 7;
    $config['total_rows'] = count($books);

    echo $config['total_rows'];
    $this->pagination->initialize($config);
    $data['query'] = array_slice($books,$this->uri->segment(3),$config['per_page']);
    $this->load->view("index",$data);

}

}

这是我的视图(index.php)-基本上只显示分页结果

<h3> Search Results </h3>   
    <!-- table -->              
    <table class="table table-condensed table-hover table-striped" id="result_table">
        <tbody>
        <?php
        if(isset ($query)){
            if(count($query)!=0){
                foreach($query as $item){
                echo "<tr><td>". $item['title'] ." by " .$item['author'] ."<br/></td></tr>";
                }
                echo $this->pagination->create_links();
            }
            else
            {
                echo "No results found for keyword ' ". $this->input->post('word')." ' .";
            }
        }
        else
        {
            echo "Start a search by typing on the Search Bar";
        }
        ?>              
        </tbody>
    </table>

我的模型(m_search.php)-基本上搜索数据库并返回结果数组.

<?php

M_search类扩展了CI_Model {

function search_books($search_term='default')
{

    $filter = $this->input->post('filter');
    //echo $filter;

    if($filter == 'title')
    {
        //echo 'title';
        $this->db->select('*');
        $this->db->from('book');
        $this->db->like('title',$search_term);
        // Execute the query.
        $query = $this->db->get();
        return $query->result_array();

    }else if($filter == 'author')
    {
        //echo 'author';
        $this->db->select('*');
        $this->db->from('book');
        $this->db->like('author',$search_term);
        // Execute the query.
        $query = $this->db->get();
        return $query->result_array();

    }else if($filter == 'type')
    {
        //echo 'type';
        $this->db->select('*');
        $this->db->from('book');
        $this->db->like('book_type',$search_term);
        // Execute the query.
        $query = $this->db->get();
        return $query->result_array();

    }else if($filter == 'status')
    {
        //echo 'status';
        $this->db->select('*');
        $this->db->from('book');
        $this->db->like('book_status',$search_term);
        // Execute the query.
        $query = $this->db->get();
        return $query->result_array();
    }else
    {
        //echo 'all';
        $this->db->select('*');
        $this->db->from('book');
        $this->db->like('book_status',$search_term);
        $this->db->or_like('book_type',$search_term);
        $this->db->or_like('author',$search_term);
        $this->db->or_like('title',$search_term);
        // Execute the query.
        $query = $this->db->get();
        return $query->result_array();
    }

}

}

现在我的问题是保留分页结果.

第一页很好,但是只要我单击页面链接,表上的结果就会显示整个数据库,而不仅限于我的搜索结果.

我读过某个地方,我需要使用会话来保留我的search_term,以便它在我切换页面时起作用,但我不知道将其放在哪里.
任何意见或建议,将不胜感激.谢谢.

解决方法:

根据您的需求,有几种不同的方式来处理搜索和分页.根据您现有的代码,这就是我要做的.

更改

$search_term = $this->input->post('word');

至

$search_term = ''; // default when no term in session or POST
if ($this->input->post('word'))
{
    // use the term from POST and set it to session
    $search_term = $this->input->post('word');
    $this->session->set_userdata('search_term', $search_term);
}
elseif ($this->session->userdata('search_term'))
{
    // if term is not in POST use existing term from session
    $search_term = $this->session->userdata('search_term');
}

标签：search,codeigniter,pagination,php
来源： https://codeday.me/bug/20191122/2056767.html

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php-CodeIgniter搜索结果分页