使用 codeigniter 和 jquery 进行 AJAX 分页

Posted 2023-03-10

【中文标题】使用 codeigniter 和 jquery 进行 AJAX 分页

【英文标题】：AJAX pagination with codeigniter and jquery

【发布时间】：2013-09-07 13:18:24

【问题描述】：

有人可以帮助我在 Codeigniter 中使用 JQuery 进行简单的 AJAX 分页吗？从数据库中查询的分页列表。 我在网上搜索，但所有的例子都非常复杂...... 提前谢谢你，对不起我的英语不好......

【问题讨论】：

google...codeigniter 中的 ajax 分页.. :)

我试过了，但它们都很复杂。我是 codeigniter 和 jquery 的新手..

【参考方案1】：

应用实时点击，如果您从控制器返回数据如下：

jQuery("#pagination a").live('click',function(e)
    e.preventDefault();
    jQuery.ajax(
    type: "POST",
    url: jQuery(this).attr("href"),
    success: function(res)
      jQuery('#multiple_selection_data').html(res);
    
    );
    return false;
);

【参考方案2】：

只需使用codeigniter分页库，并在创建链接函数后在库中添加以下函数

function create_links_ajax()
    
        // If our item count or per-page total is zero there is no need to continue.
        if ($this->total_rows == 0 OR $this->per_page == 0)
        
            return '';
        

        // Calculate the total number of pages
        $num_pages = ceil($this->total_rows / $this->per_page);

        // Is there only one page? Hm... nothing more to do here then.
        if ($num_pages == 1)
        
            return '';
        

        // Set the base page index for starting page number
        if ($this->use_page_numbers)
        
            $base_page = 1;
        
        else
        
            $base_page = 0;
        

        // Determine the current page number.
        $CI =& get_instance();

        if ($CI->config->item('enable_query_strings') === TRUE OR $this->page_query_string === TRUE)
        
            if ($CI->input->get($this->query_string_segment) != $base_page)
            
                $this->cur_page = $CI->input->get($this->query_string_segment);

                // Prep the current page - no funny business!
                $this->cur_page = (int) $this->cur_page;
            
        
        else
        
            if ($CI->uri->segment($this->uri_segment) != $base_page)
            
                $this->cur_page = $CI->uri->segment($this->uri_segment);

                // Prep the current page - no funny business!
                $this->cur_page = (int) $this->cur_page;
            
        

        // Set current page to 1 if using page numbers instead of offset
        if ($this->use_page_numbers AND $this->cur_page == 0)
        
            $this->cur_page = $base_page;
        

        $this->num_links = (int)$this->num_links;

        if ($this->num_links < 1)
        
            show_error('Your number of links must be a positive number.');
        

        if ( ! is_numeric($this->cur_page))
        
            $this->cur_page = $base_page;
        

        // Is the page number beyond the result range?
        // If so we show the last page
        if ($this->use_page_numbers)
        
            if ($this->cur_page > $num_pages)
            
                $this->cur_page = $num_pages;
            
        
        else
        
            if ($this->cur_page > $this->total_rows)
            
                $this->cur_page = ($num_pages - 1) * $this->per_page;
            
        

        $uri_page_number = $this->cur_page;

        if ( ! $this->use_page_numbers)
        
            $this->cur_page = floor(($this->cur_page/$this->per_page) + 1);
        

        // Calculate the start and end numbers. These determine
        // which number to start and end the digit links with
        $start = (($this->cur_page - $this->num_links) > 0) ? $this->cur_page - ($this->num_links - 1) : 1;
        $end   = (($this->cur_page + $this->num_links) < $num_pages) ? $this->cur_page + $this->num_links : $num_pages;

        // Is pagination being used over GET or POST?  If get, add a per_page query
        // string. If post, add a trailing slash to the base URL if needed
        if ($CI->config->item('enable_query_strings') === TRUE OR $this->page_query_string === TRUE)
        
            $this->base_url = rtrim($this->base_url).'&amp;'.$this->query_string_segment.'=';
        
        else
        
            $this->base_url = rtrim($this->base_url, '/') .'/';
        

        // And here we go...
        $output = '';

        // Render the "First" link
        if  ($this->first_link !== FALSE AND $this->cur_page > ($this->num_links + 1))
        
            $first_url = ($this->first_url == '') ? $this->base_url : $this->first_url;
            $output .= $this->first_tag_open.'<a id="'.$first_url.'" onclick="show_ajax_cards(this)" '.$this->anchor_class.'href="javascript:void(0)">'.$this->first_link.'</a>'.$this->first_tag_close;
        

        // Render the "previous" link
        if  ($this->prev_link !== FALSE AND $this->cur_page != 1)
        
            if ($this->use_page_numbers)
            
                $i = $uri_page_number - 1;
            
            else
            
                $i = $uri_page_number - $this->per_page;
            

            if ($i == 0 && $this->first_url != '')
            
                $output .= $this->prev_tag_open.'<a id="'.$this->first_url.'" onclick="show_ajax_cards(this)"'.$this->anchor_class.'href="javascript:void(0)">'.$this->prev_link.'</a>'.$this->prev_tag_close;
            
            else
            
                $i = ($i == 0) ? '' : $this->prefix.$i.$this->suffix;
                $output .= $this->prev_tag_open.'<a id="'.$this->base_url.$i.'" onclick="show_ajax_cards(this)"'.$this->anchor_class.'href="javascript:void(0)">'.$this->prev_link.'</a>'.$this->prev_tag_close;
            

        

        // Render the pages
        if ($this->display_pages !== FALSE)
        
            // Write the digit links
            for ($loop = $start -1; $loop <= $end; $loop++)
            
                if ($this->use_page_numbers)
                
                    $i = $loop;
                
                else
                
                    $i = ($loop * $this->per_page) - $this->per_page;
                

                if ($i >= $base_page)
                
                    if ($this->cur_page == $loop)
                    
                    //  $output .= $this->cur_tag_open.$loop.$this->cur_tag_close; // Current page
                    //  $output .= $this->num_tag_open.'<a '.$this->anchor_class.'href="'.$this->base_url.$n.'">'.$loop.'</a>'.$this->num_tag_close;
                    
                    else
                    
                        $n = ($i == $base_page) ? '' : $i;

                        if ($n == '' && $this->first_url != '')
                        
                            $output .= $this->num_tag_open.'<a id="'.$this->first_url.'" onclick="show_ajax_cards(this)" '.$this->anchor_class.'href="javascript:void(0)">'.$loop.'</a>'.$this->num_tag_close;
                        
                        else
                        
                            $n = ($n == '') ? '' : $this->prefix.$n.$this->suffix;

                            $output .= $this->num_tag_open.'<a id="'.$this->base_url.$n.'" onclick="show_ajax_cards(this)"  '.$this->anchor_class.'href="javascript:void(0)">'.$loop.'</a>'.$this->num_tag_close;
                        
                    
                
            
        

        // Render the "next" link
        if ($this->next_link !== FALSE AND $this->cur_page < $num_pages)
        
            if ($this->use_page_numbers)
            
                $i = $this->cur_page + 1;
            
            else
            
                $i = ($this->cur_page * $this->per_page);
            

            $output .= $this->next_tag_open.'<a id="'.$this->base_url.$this->prefix.$i.$this->suffix.'" onclick="show_ajax_cards(this)"'.$this->anchor_class.'href="javascript:void(0)">'.$this->next_link.'</a>'.$this->next_tag_close;
        

        // Render the "Last" link
        if ($this->last_link !== FALSE AND ($this->cur_page + $this->num_links) < $num_pages)
        
            if ($this->use_page_numbers)
            
                $i = $num_pages;
            
            else
            
                $i = (($num_pages * $this->per_page) - $this->per_page);
            
            $output .= $this->last_tag_open.'<a id="'.$this->base_url.$this->prefix.$i.$this->suffix.'" onclick="show_ajax_cards(this)"'.$this->anchor_class.'href="javascript:void(0)"'.$this->last_link.'</a>'.$this->last_tag_close;
        

        // Kill double slashes.  Note: Sometimes we can end up with a double slash
        // in the penultimate link so we'll kill all double slashes.
        $output = preg_replace("#([^:])//+#", "\\1/", $output);

        // Add the wrapper HTML if exists
        $output = $this->full_tag_open.$output.$this->full_tag_close;

        return $output;
    

并在视图中创建一个看起来像这样的函数

function show_ajax_cards(obj)


    var baseurl     =   obj.id;
    $.ajax(
            url:    baseurl,
            data:"baseurl="+baseurl,
            type: 'POST',
            success: function(html)
                
                   $('#cardReplace').html(html);
                                              
        );

【参考方案3】：

只需使用简单的codeigniter分页并使用以下代码通过jquery进行分页：

<script>
$(function()
   $("#pagination-div-id a").click(function()
   $.ajax(
   type: "POST",
   url: $(this).attr("href"),
   data:"q=<?php echo $searchString; ?>",
   success: function(res)
      $("#containerid").html(res);
   
   );
   return false;
   );
);
</script>

这里的pagination div id是分页容器的id，containerid就是你展示结果的容器id。

【讨论】：

谢谢。我没有意识到它是如此简单。 A会给你投票，但我没有足够的声誉......

@beniaminSzabo 我代表你这样做 :)

谢谢。我现在有足够的声誉:)

当我发布这个问题时，我正处于编程生涯的开始阶段。

你能给我解释一下吗？数据："q="