setApp();
$this->setLang();
$this->setModuleName();
$this->setMethodName();
$this->setRecTotal($recTotal);
$this->setRecPerPage($recPerPage);
$this->setPageTotal();
$this->setPageID($pageID);
}
/**
* 构造方法。
* The factory function.
*
* @param int $recTotal
* @param int $recPerPage
* @param int $pageID
* @access public
* @return object
*/
public static function init($recTotal = 0, $recPerPage = 20, $pageID = 1)
{
return new pager($recTotal, $recPerPage, $pageID);
}
/**
* 设置总记录数。
* Set the recTotal property.
*
* @param int $recTotal
* @access public
* @return void
*/
public function setRecTotal($recTotal = 0)
{
$this->recTotal = (int)$recTotal;
}
/**
* 设置每页记录数。
* Set the recPerPage property.
*
* @param int $recPerPage
* @access public
* @return void
*/
public function setRecPerPage($recPerPage)
{
/* Set the cookie name. */
$this->pageCookie = 'pager' . ucfirst($this->app->getModuleName()) . ucfirst($this->app->getMethodName());
if(isset($_COOKIE[$this->pageCookie])) $recPerPage = $_COOKIE[$this->pageCookie];
$this->recPerPage = ($recPerPage > 0) ? $recPerPage : PAGER::DEFAULT_REC_PER_PAGE;
}
/**
* 设置总页数。
* Set the pageTotal property.
*
* @access public
* @return void
*/
public function setPageTotal()
{
$this->pageTotal = ceil($this->recTotal / $this->recPerPage);
}
/**
* 设置页码。
* Set the page id.
*
* @param int $pageID
* @access public
* @return void
*/
public function setPageID($pageID)
{
if($pageID > 0 and ($this->pageTotal == 0 or $pageID <= $this->pageTotal))
{
$this->pageID = $pageID;
}
else
{
$this->pageID = 1;
}
}
/**
* 设置全局变量$app。
* Set the $app property;
*
* @access public
* @return void
*/
public function setApp()
{
global $app;
$this->app = $app;
}
/**
* 设置全局变量$lang。
* Set the $lang property.
*
* @access public
* @return void
*/
public function setLang()
{
global $lang;
$this->lang = $lang;
}
/**
* 设置模块名。
* Set the $moduleName property.
*
* @access public
* @return void
*/
public function setModuleName()
{
$this->moduleName = $this->app->getModuleName();
}
/**
* 设置方法名。
* Set the $methodName property.
*
* @access public
* @return void
*/
public function setMethodName()
{
$this->methodName = $this->app->getMethodName();
}
/**
* 从请求网址中获取记录总数、每页记录数、页码。
* Get recTotal, recPerpage, pageID from the request params, and add them to params.
*
* @access public
* @return void
*/
public function setParams()
{
$this->params = $this->app->getParams();
foreach($this->params as $key => $value)
{
if(strtolower($key) == 'rectotal') $this->params[$key] = $this->recTotal;
if(strtolower($key) == 'recperpage') $this->params[$key] = $this->recPerPage;
if(strtolower($key) == 'pageid') $this->params[$key] = $this->pageID;
}
parse_str(strip_tags(urldecode($_SERVER['QUERY_STRING'])), $query);
if(!empty($query['m']) && !empty($query['f']) && $query['m'] == $this->moduleName && $query['f'] == $this->methodName)
{
unset($query['m']);
unset($query['f']);
unset($query['t']);
$this->params = array_merge($this->params, $query);
}
}
/**
* 创建limit语句。
* Create the limit string.
*
* @access public
* @return string
*/
public function limit()
{
$limit = '';
if($this->pageTotal > 1) $limit = ' lImiT ' . ($this->pageID - 1) * $this->recPerPage . ", $this->recPerPage";
return $limit;
}
/**
* 向页面显示分页信息。
* Print the pager's html.
*
* @param string $align
* @param string $type
* @access public
* @return void
*/
public function show($align = 'right', $type = 'full')
{
if($align === 'justify')
{
echo $this->getJustify($type);
}
else
{
echo $this->get($align, $type);
}
}
/**
* 获取优化后的分页。
* Get the justify pager html string
*
* @access public
* @return [type] [description]
*/
public function getJustify()
{
if($this->recTotal <= 0) return '';
$this->setParams();
$pager = '';
$pager .= "";
$this->params['pageID'] = 1;
$pager .= $this->createLink('« ' . $this->lang->pager->previousPage) . '';
$pager .= "";
$firstId = $this->recPerPage * ($this->pageID - 1) + 1;
$pager .= sprintf($this->lang->pager->summery, $firstId, max(min($this->recPerPage * $this->pageID, $this->recTotal), $firstId), $this->recTotal);
$pager .= '';
$pager .= "";
$this->params['pageID'] = min($this->pageTotal, $this->pageID + 1);
$pager .= $this->createLink($this->lang->pager->nextPage . ' »') . '';
return "";
}
/**
* 设置分页信息的样式。
* Get the pager html string.
*
* @param string $align
* @param string $type the pager type, full|short|shortest
* @access public
* @return string
*/
public function get($align = 'right', $type = 'full')
{
/* 如果记录个数为0，返回没有记录。 */
/* If the RecTotal is zero, return with no record. */
if($this->recTotal == 0) return $type == 'mobile' ? '' : "{$this->lang->pager->noRecord}
";
/* Set the params. */
$this->setParams();
/* 创建前一页和后一页链接。 */
/* Create the prePage and nextpage, all types have them. */
$pager = $this->createPrePage($type);
$pager .= $this->createNextPage($type);
/* 简单和完全模式。 The short and full type. */
if($type !== 'shortest' and $type !== 'mobile')
{
$pager = $this->createFirstPage() . $pager;
$pager .= $this->createLastPage();
}
if($type == 'mobile')
{
$position = $this->pageTotal == 1 ? '' : $this->pageID . '/' . $this->pageTotal;
$pager = $pager . ' ' . $position;
}
else if($type != 'full')
{
$pager = $this->pageID . '/' . $this->pageTotal . ' ' . $pager;
}
/* 只是完全模式。 Only the full type . */
if($type == 'full')
{
$pager = $this->createDigest() . $pager;
$pager .= $this->createGoTo();
$pager .= $this->createRecPerPageJS();
}
return "";
}
/**
* 生成分页摘要信息。
* Create the digest code.
*
* @access public
* @return string
*/
public function createDigest()
{
return sprintf($this->lang->pager->digest, $this->recTotal, $this->createRecPerPageList(), $this->pageID, $this->pageTotal);
}
/**
* 创建首页链接。
* Create the first page.
*
* @access public
* @return string
*/
public function createFirstPage()
{
if($this->pageID == 1) return $this->lang->pager->first . ' ';
$this->params['pageID'] = 1;
return $this->createLink($this->lang->pager->first);
}
/**
* 创建前一页链接。
* Create the pre page html.
*
* @param string $type
* @access public
* @return string
*/
public function createPrePage($type = 'full')
{
if($type == 'mobile')
{
if($this->pageID == 1) return '';
$this->params['pageID'] = $this->pageID - 1;
return $this->createLink($this->lang->pager->pre);
}
else
{
if($this->pageID == 1) return $this->lang->pager->pre . ' ';
$this->params['pageID'] = $this->pageID - 1;
return $this->createLink($this->lang->pager->pre);
}
}
/**
* 创建下一页链接。
* Create the next page html.
*
* @param string $type
* @access public
* @return string
*/
public function createNextPage($type = 'full')
{
if($type == 'mobile')
{
if($this->pageID == $this->pageTotal) return '';
$this->params['pageID'] = $this->pageID + 1;
return $this->createLink($this->lang->pager->next);
}
else
{
if($this->pageID == $this->pageTotal) return $this->lang->pager->next . ' ';
$this->params['pageID'] = $this->pageID + 1;
return $this->createLink($this->lang->pager->next);
}
}
/**
* 创建最后一页链接。
* Create the last page
*
* @access public
* @return string
*/
public function createLastPage()
{
if($this->pageID == $this->pageTotal) return $this->lang->pager->last . ' ';
$this->params['pageID'] = $this->pageTotal;
return $this->createLink($this->lang->pager->last);
}
/**
* 创建每页显示记录数的select标签。
* Create the select object of record perpage.
*
* @access public
* @return string
*/
public function createRecPerPageJS()
{
/*
* 替换recTotal, recPerPage, pageID为特殊的字符串，然后用js代码替换掉。
* Replace the recTotal, recPerPage, pageID to special string, and then replace them with values by JS.
**/
$params = $this->params;
foreach($params as $key => $value)
{
if(strtolower($key) == 'rectotal') $params[$key] = '_recTotal_';
if(strtolower($key) == 'recperpage') $params[$key] = '_recPerPage_';
if(strtolower($key) == 'pageid') $params[$key] = '_pageID_';
}
$vars = '';
foreach($params as $key => $value) $vars .= "$key=$value&";
$vars = rtrim($vars, '&');
$js = <<
vars = '$vars';
pageCookie = '$this->pageCookie';
function submitPage(mode, perPage)
{
pageTotal = parseInt(document.getElementById('_pageTotal').value);
pageID = document.getElementById('_pageID').value;
recPerPage = document.getElementById('_recPerPage').getAttribute('data-value');
recTotal = document.getElementById('_recTotal').value;
if(mode == 'changePageID')
{
if(pageID > pageTotal) pageID = pageTotal;
if(pageID < 1) pageID = 1;
}
else if(mode == 'changeRecPerPage')
{
recPerPage = perPage;
pageID = 1;
}
$.cookie(pageCookie, recPerPage, {expires:config.cookieLife, path:config.webRoot});
vars = vars.replace('_recTotal_', recTotal)
vars = vars.replace('_recPerPage_', recPerPage)
vars = vars.replace('_pageID_', pageID);
location.href=createLink('$this->moduleName', '$this->methodName', vars);
}
EOT;
return $js;
}
/**
* 生成每页显示记录数的select列表。
* Create the select list of RecPerPage.
*
* @access public
* @return string
*/
public function createRecPerPageList()
{
for($i = 5; $i <= 50; $i += 5) $range[$i] = $i;
$range[100] = 100;
$range[200] = 200;
$range[500] = 500;
$range[1000] = 1000;
$range[2000] = 2000;
$html = "';
return $html;
}
/**
* 生成跳转到指定页码的部分。
* Create the goto part html.
*
* @access public
* @return string
*/
public function createGoTo()
{
$goToHtml = "\n";
$goToHtml .= "\n";
$goToHtml .= " \n";
$goToHtml .= "";
return $goToHtml;
}
/**
* 创建链接。
* Create link.
*
* @param string $title
* @access public
* @return string
*/
public function createLink($title)
{
return html::a(helper::createLink($this->moduleName, $this->methodName, $this->params), $title);
}
}