';
/**
* Current tag close
*
* @var string
*/
protected $cur_tag_close = '';
/**
* Next tag open
*
* @var string
*/
protected $next_tag_open = '';
/**
* Next tag close
*
* @var string
*/
protected $next_tag_close = '';
/**
* Previous tag open
*
* @var string
*/
protected $prev_tag_open = '';
/**
* Previous tag close
*
* @var string
*/
protected $prev_tag_close = '';
/**
* Number tag open
*
* @var string
*/
protected $num_tag_open = '';
/**
* Number tag close
*
* @var string
*/
protected $num_tag_close = '';
/**
* Page query string flag
*
* @var bool
*/
protected $page_query_string = FALSE;
/**
* Query string segment
*
* @var string
*/
protected $query_string_segment = 'per_page';
/**
* Display pages flag
*
* @var bool
*/
protected $display_pages = TRUE;
/**
* Attributes
*
* @var string
*/
protected $_attributes = '';
/**
* Link types
*
* "rel" attribute
*
* @see CI_Pagination::_attr_rel()
* @var array
*/
protected $_link_types = array();
/**
* Reuse query string flag
*
* @var bool
*/
protected $reuse_query_string = FALSE;
/**
* Use global URL suffix flag
*
* @var bool
*/
protected $use_global_url_suffix = FALSE;
/**
* Data page attribute
*
* @var string
*/
protected $data_page_attr = 'data-ci-pagination-page';
// get参数名称
protected $page_name = 'page';
// --------------------------------------------------------------------
/**
* Initialize Preferences
*
* @param array $params Initialization parameters
* @return CI_Pagination
*/
public function initialize(array $params = array())
{
foreach ($params as $key => $val)
{
if (property_exists($this, $key))
{
$this->$key = $val;
}
}
return $this;
}
// --------------------------------------------------------------------
/**
* Add "rel" attribute
*
* @link http://www.w3.org/TR/html5/links.html#linkTypes
* @param string $type
* @return string
*/
protected function _attr_rel($type)
{
if (isset($this->_link_types[$type]))
{
unset($this->_link_types[$type]);
return ' rel="'.$type.'"';
}
return '';
}
// --------------------------------------------------------------------
protected function _get_page_id() {
if (!$this->page_name || is_numeric($this->page_name) || $this->page_name == 'page') {
return max(1, isset($_GET['page']) ? (int)$_GET['page'] : 1);
}
return max(1, isset($_GET[$this->page_name]) ? (int)$_GET[$this->page_name] : 1);
}
/**
* Generate the pagination links
*
* @return string
*/
public function create_links()
{
// If our item count or per-page total is zero there is no need to continue.
if (!$this->total_rows OR !$this->per_page)
{
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 && !$this->compel_page)
{
return '';
}
// Check the user defined number of links.
$this->num_links = (int) $this->num_links;
// Put together our base and first URLs.
$this->base_url = trim($this->base_url);
// Determine the current page number.
$base_page = ($this->use_page_numbers) ? 1 : 0;
$this->cur_page = $this->_get_page_id();
// If something isn't quite right, back to the default base page.
if ( $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 : $num_pages;
// And here we go...$total_rows
$output = '';
if ($this->total_link) {
$output .= $this->total_tag_open.dr_lang($this->total_link, $this->total_rows).$this->total_tag_close;
}
// Render the "First" link.
if ($this->first_link !== FALSE && ($this->cur_page > ($this->num_links + 1) || $this->compel_first_page))
{
// Take the general parameters, and squeeze this pagination-page attr in for JS frameworks.
$attributes = $this->data_page_attr ? sprintf(' %s="%d"', $this->data_page_attr, 1) : '';
if ($this->first_anchor_class) {
$attributes.= ' class="'.$this->first_anchor_class.'"';
} elseif ($this->anchor_class) {
$attributes.= ' class="'.$this->anchor_class.'"';
}
$output .= $this->first_tag_open.'_attr_rel('start').'>'
.dr_lang($this->first_link).''.$this->first_tag_close;
}
// Render the "Previous" link.
if ($this->prev_link !== FALSE && ($this->cur_page !== 1 || $this->compel_prev_page))
{
$i = ($this->use_page_numbers) ? $uri_page_number - 1 : $uri_page_number - $this->per_page;
$attributes = !$this->data_page_attr ? '' : sprintf(' %s="%d"', $this->data_page_attr, (int) $i);
if ($this->prev_anchor_class) {
$attributes.= ' class="'.$this->prev_anchor_class.'"';
} elseif ($this->anchor_class) {
$attributes.= ' class="'.$this->anchor_class.'"';
}
if ($i === $base_page)
{
// First page
$output .= $this->prev_tag_open.'_attr_rel('prev').'>'
.dr_lang($this->prev_link).''.$this->prev_tag_close;
}
else
{
$output .= $this->prev_tag_open.'_attr_rel('prev').'>'
.dr_lang($this->prev_link).''.$this->prev_tag_close;
}
}
// Render the pages
if ($this->display_pages !== FALSE)
{
// Write the digit links
for ($loop = $start -1; $loop <= $end; $loop++)
{
$i = ($this->use_page_numbers) ? $loop : ($loop * $this->per_page) - $this->per_page;
$attributes = !$this->data_page_attr ? '' : sprintf(' %s="%d"', $this->data_page_attr, (int) $i);
if ($this->num_anchor_class) {
$attributes.= ' class="'.$this->num_anchor_class.'"';
} elseif ($this->anchor_class) {
$attributes.= ' class="'.$this->anchor_class.'"';
}
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 .= $this->num_tag_open.'_attr_rel('start').'>'
.$loop.''.$this->num_tag_close;
}
else
{
$output .= $this->num_tag_open.'_attr_rel('start').'>'
.$loop.''.$this->num_tag_close;
}
}
}
}
// Render the "next" link
if ($this->next_link !== FALSE && ($this->cur_page < $num_pages || $this->compel_next_page))
{
$i = ($this->use_page_numbers) ? min($num_pages, $this->cur_page + 1) : $this->cur_page * $this->per_page;
$attributes = !$this->data_page_attr ? '' : sprintf(' %s="%d"', $this->data_page_attr, (int) $i);
if ($this->next_anchor_class) {
$attributes.= ' class="'.$this->next_anchor_class.'"';
} elseif ($this->anchor_class) {
$attributes.= ' class="'.$this->anchor_class.'"';
}
$output .= $this->next_tag_open.'_attr_rel('next').'>'.dr_lang($this->next_link).''.$this->next_tag_close;
}
// Render the "Last" link
if ($this->last_link !== FALSE && (($this->cur_page + $this->num_links) < $num_pages || $this->compel_last_page))
{
$i = ($this->use_page_numbers) ? $num_pages : ($num_pages * $this->per_page) - $this->per_page;
$attributes = !$this->data_page_attr ? '' : sprintf(' %s="%d"', $this->data_page_attr, (int) $i);
if ($this->last_anchor_class) {
$attributes.= ' class="'.$this->last_anchor_class.'"';
} elseif ($this->anchor_class) {
$attributes.= ' class="'.$this->anchor_class.'"';
}
$output .= $this->last_tag_open.''
.dr_lang($this->last_link).''.$this->last_tag_close;
}
if (IS_ADMIN) {
$output .= '
';
}
// 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.$this->full_tag_close;
}
protected function _get_link_url($page) {
return $page <=1 && $this->first_url ? $this->first_url : str_replace('{page}', $page, $this->base_url);
}
}