最后我通过扩展 CI 分页库想出了解决方案。
创建了新类 Mypagination 并覆盖了默认的 create_links() 方法。
这里是代码
class Mypagination extends CI_Pagination {
function __construct()
{
parent::__construct();
}
public function create_links()
{
// If our item count or per-page total is zero there is no need to continue.
// Note: DO NOT change the operator to === here!
if ($this->total_rows == 0 OR $this->per_page == 0)
{
return '';
}
// Calculate the total number of pages
$num_pages = (int) ceil($this->total_rows / $this->per_page);
// Is there only one page? Hm... nothing more to do here then.
if ($num_pages === 1)
{
return '';
}
// Check the user defined number of links.
$this->num_links = (int) $this->num_links;
if ($this->num_links < 0)
{
show_error('Your number of links must be a non-negative number.');
}
// Keep any existing query string items.
// Note: Has nothing to do with any other query string option.
if ($this->reuse_query_string === TRUE)
{
$get = $this->CI->input->get();
// Unset the controll, method, old-school routing options
unset($get['c'], $get['m'], $get[$this->query_string_segment]);
}
else
{
$get = array();
}
// Put together our base and first URLs.
// Note: DO NOT append to the properties as that would break successive calls
$base_url = trim($this->base_url);
$first_url = $this->first_url;
$query_string = '';
$query_string_sep = (strpos($base_url, '?') === FALSE) ? '?' : '&';
// Are we using query strings?
if ($this->page_query_string === TRUE)
{
// If a custom first_url hasn't been specified, we'll create one from
// the base_url, but without the page item.
if ($first_url === '')
{
$first_url = $base_url;
// If we saved any GET items earlier, make sure they're appended.
if ( ! empty($get))
{
$first_url .= $query_string_sep.http_build_query($get);
}
}
// Add the page segment to the end of the query string, where the
// page number will be appended.
$base_url .= $query_string_sep.http_build_query(array_merge($get, array($this->query_string_segment => '')));
}
else
{
// Standard segment mode.
// Generate our saved query string to append later after the page number.
if ( ! empty($get))
{
$query_string = $query_string_sep.http_build_query($get);
$this->suffix .= $query_string;
}
// Does the base_url have the query string in it?
// If we're supposed to save it, remove it so we can append it later.
if ($this->reuse_query_string === TRUE && ($base_query_pos = strpos($base_url, '?')) !== FALSE)
{
$base_url = substr($base_url, 0, $base_query_pos);
}
if ($first_url === '')
{
$first_url = $base_url.$query_string;
}
$base_url = rtrim($base_url, '/').'/';
}
// Determine the current page number.
$base_page = ($this->use_page_numbers) ? 1 : 0;
// Are we using query strings?
if ($this->page_query_string === TRUE)
{
$this->cur_page = $this->CI->input->get($this->query_string_segment);
}
else
{
// Default to the last segment number if one hasn't been defined.
if ($this->uri_segment === 0)
{
$this->uri_segment = count($this->CI->uri->segment_array());
}
$this->cur_page = $this->CI->uri->segment($this->uri_segment);
// Remove any specified prefix/suffix from the segment.
if ($this->prefix !== '' OR $this->suffix !== '')
{
$this->cur_page = str_replace(array($this->prefix, $this->suffix), '', $this->cur_page);
}
}
// If something isn't quite right, back to the default base page.
if ( ! ctype_digit($this->cur_page) OR ($this->use_page_numbers && (int) $this->cur_page === 0))
{
$this->cur_page = $base_page;
}
else
{
// Make sure we're using integers for comparisons later.
$this->cur_page = (int) $this->cur_page;
}
// Is the page number beyond the result range?
// If so, we show the last page.
if ($this->use_page_numbers)
{
if ($this->cur_page > $num_pages)
{
$this->cur_page = $num_pages;
}
}
elseif ($this->cur_page > $this->total_rows)
{
$this->cur_page = ($num_pages - 1) * $this->per_page;
}
$uri_page_number = $this->cur_page;
// If we're using offset instead of page numbers, convert it
// to a page number, so we can generate the surrounding number links.
if ( ! $this->use_page_numbers)
{
$this->cur_page = (int) floor(($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;
// And here we go...
$output = '';
// Render the "Previous" link.
if ($this->prev_link !== FALSE && $this->cur_page !== 1)
{
$i = ($this->use_page_numbers) ? $uri_page_number - 1 : $uri_page_number - $this->per_page;
$attributes = sprintf('%s %s="%d"', $this->_attributes, $this->data_page_attr, (int) $i);
if ($i === $base_page)
{
// First page
$output .= $this->prev_tag_open.'<a href="'.$first_url.'"'.$attributes.$this->_attr_rel('prev').'>'
.$this->prev_link.'</a>'.$this->prev_tag_close;
}
else
{
$append = $this->prefix.$i.$this->suffix;
$output .= $this->prev_tag_open.'<a href="'.$base_url.$append.'"'.$attributes.$this->_attr_rel('prev').'>'
.$this->prev_link.'</a>'.$this->prev_tag_close;
}
}
// Render the "First" link.
if ($this->first_link !== FALSE && $this->cur_page > ($this->num_links + 1 + ! $this->num_links))
{
// Take the general parameters, and squeeze this pagination-page attr in for JS frameworks.
$attributes = sprintf('%s %s="%d"', $this->_attributes, $this->data_page_attr, 1);
$output .= $this->first_tag_open.'<a href="'.$first_url.'"'.$attributes.$this->_attr_rel('start').'>'
.$this->first_link.'</a>'.$this->first_tag_close;
}
// Render the pages
if ($this->display_pages !== FALSE)
{
/*
* On page 4, show hidden page 2
*/
if($start == 4){
$start--;
}
/*
* On pages after 4, show dots before pages
*/
if(($start)>4){
$output .= '<div class="continues">. . .</div>';
}
/*
* On page 4th last, show hidden page 2nd last
*/
if($start == ($num_pages-3) && $start > 4){
$end++;
}
/*
* On last page, show hidden page 3rd last
*/
if($start == $num_pages && $start>3){
$start--;
}
/*
* On page 1, show hidden page 3
*/
if($start == 1 && $end < $num_pages-1){
$end++;
}
// Write the digit links
for ($loop = $start -1; $loop <= $end; $loop++)
{
$i = ($this->use_page_numbers) ? $loop : ($loop * $this->per_page) - $this->per_page;
$attributes = sprintf('%s %s="%d"', $this->_attributes, $this->data_page_attr, (int) $i);
if ($i >= $base_page)
{
if ($this->cur_page === $loop)
{
// Current page
$output .= $this->cur_tag_open.$loop.$this->cur_tag_close;
}
elseif ($i === $base_page)
{
// First page
$output .= $this->num_tag_open.'<a href="'.$first_url.'"'.$attributes.$this->_attr_rel('start').'>'
.$loop.'</a>'.$this->num_tag_close;
}
else
{
$append = $this->prefix.$i.$this->suffix;
$output .= $this->num_tag_open.'<a href="'.$base_url.$append.'"'.$attributes.$this->_attr_rel('start').'>'
.$loop.'</a>'.$this->num_tag_close;
}
}
}
/*
* On pages before last, show dots
*/
if($end < ($num_pages-1)){
$output .= '<div class="continues">. . .</div>';
}
}
// Render the "Last" link
if ($this->last_link !== FALSE && ($this->cur_page + $this->num_links + ! $this->num_links) < $num_pages)
{
$i = ($this->use_page_numbers) ? $num_pages : ($num_pages * $this->per_page) - $this->per_page;
$attributes = sprintf('%s %s="%d"', $this->_attributes, $this->data_page_attr, (int) $i);
$output .= $this->last_tag_open.'<a href="'.$base_url.$this->prefix.$i.$this->suffix.'"'.$attributes.'>'
.$this->last_link.'</a>'.$this->last_tag_close;
}
// Render the "next" link
if ($this->next_link !== FALSE && $this->cur_page < $num_pages)
{
$i = ($this->use_page_numbers) ? $this->cur_page + 1 : $this->cur_page * $this->per_page;
$attributes = sprintf('%s %s="%d"', $this->_attributes, $this->data_page_attr, (int) $i);
$output .= $this->next_tag_open.'<a href="'.$base_url.$this->prefix.$i.$this->suffix.'"'.$attributes
.$this->_attr_rel('next').'>'.$this->next_link.'</a>'.$this->next_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
return $this->full_tag_open.$output.$this->full_tag_close;
}
}
我已经添加了
/*
* my comments here
*/
在我进行更改的代码之前设置样式的 cmets。