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+<?php
+
+/*
+ @version v5.20.14 06-Jan-2019
+ @copyright (c) 2000-2013 John Lim (jlim#natsoft.com). All rights reserved.
+ @copyright (c) 2014 Damien Regad, Mark Newnham and the ADOdb community
+ Released under both BSD license and Lesser GPL library license.
+ Whenever there is any discrepancy between the two licenses,
+ the BSD license will take precedence.
+ Set tabs to 4 for best viewing.
+
+ This class provides recordset pagination with
+ First/Prev/Next/Last links.
+
+ Feel free to modify this class for your own use as
+ it is very basic. To learn how to use it, see the
+ example in adodb/tests/testpaging.php.
+
+ "Pablo Costa" <pablo@cbsp.com.br> implemented Render_PageLinks().
+
+ Please note, this class is entirely unsupported,
+ and no free support requests except for bug reports
+ will be entertained by the author.
+
+*/
+class ADODB_Pager {
+ var $id; // unique id for pager (defaults to 'adodb')
+ var $db; // ADODB connection object
+ var $sql; // sql used
+ var $rs; // recordset generated
+ var $curr_page; // current page number before Render() called, calculated in constructor
+ var $rows; // number of rows per page
+ var $linksPerPage=10; // number of links per page in navigation bar
+ var $showPageLinks;
+
+ var $gridAttributes = 'width=100% border=1 bgcolor=white';
+
+ // Localize text strings here
+ var $first = '<code>|&lt;</code>';
+ var $prev = '<code>&lt;&lt;</code>';
+ var $next = '<code>>></code>';
+ var $last = '<code>>|</code>';
+ var $moreLinks = '...';
+ var $startLinks = '...';
+ var $gridHeader = false;
+ var $htmlSpecialChars = true;
+ var $page = 'Page';
+ var $linkSelectedColor = 'red';
+ var $cache = 0; #secs to cache with CachePageExecute()
+
+ //----------------------------------------------
+ // constructor
+ //
+ // $db adodb connection object
+ // $sql sql statement
+ // $id optional id to identify which pager,
+ // if you have multiple on 1 page.
+ // $id should be only be [a-z0-9]*
+ //
+ function __construct(&$db,$sql,$id = 'adodb', $showPageLinks = false)
+ {
+ global $PHP_SELF;
+
+ $curr_page = $id.'_curr_page';
+ if (!empty($PHP_SELF)) $PHP_SELF = htmlspecialchars($_SERVER['PHP_SELF']); // htmlspecialchars() to prevent XSS attacks
+
+ $this->sql = $sql;
+ $this->id = $id;
+ $this->db = $db;
+ $this->showPageLinks = $showPageLinks;
+
+ $next_page = $id.'_next_page';
+
+ if (isset($_GET[$next_page])) {
+ $_SESSION[$curr_page] = (integer) $_GET[$next_page];
+ }
+ if (empty($_SESSION[$curr_page])) $_SESSION[$curr_page] = 1; ## at first page
+
+ $this->curr_page = $_SESSION[$curr_page];
+
+ }
+
+ //---------------------------
+ // Display link to first page
+ function Render_First($anchor=true)
+ {
+ global $PHP_SELF;
+ if ($anchor) {
+ ?>
+ <a href="<?php echo $PHP_SELF,'?',$this->id;?>_next_page=1"><?php echo $this->first;?></a> &nbsp;
+ <?php
+ } else {
+ print "$this->first &nbsp; ";
+ }
+ }
+
+ //--------------------------
+ // Display link to next page
+ function render_next($anchor=true)
+ {
+ global $PHP_SELF;
+
+ if ($anchor) {
+ ?>
+ <a href="<?php echo $PHP_SELF,'?',$this->id,'_next_page=',$this->rs->AbsolutePage() + 1 ?>"><?php echo $this->next;?></a> &nbsp;
+ <?php
+ } else {
+ print "$this->next &nbsp; ";
+ }
+ }
+
+ //------------------
+ // Link to last page
+ //
+ // for better performance with large recordsets, you can set
+ // $this->db->pageExecuteCountRows = false, which disables
+ // last page counting.
+ function render_last($anchor=true)
+ {
+ global $PHP_SELF;
+
+ if (!$this->db->pageExecuteCountRows) return;
+
+ if ($anchor) {
+ ?>
+ <a href="<?php echo $PHP_SELF,'?',$this->id,'_next_page=',$this->rs->LastPageNo() ?>"><?php echo $this->last;?></a> &nbsp;
+ <?php
+ } else {
+ print "$this->last &nbsp; ";
+ }
+ }
+
+ //---------------------------------------------------
+ // original code by "Pablo Costa" <pablo@cbsp.com.br>
+ function render_pagelinks()
+ {
+ global $PHP_SELF;
+ $pages = $this->rs->LastPageNo();
+ $linksperpage = $this->linksPerPage ? $this->linksPerPage : $pages;
+ for($i=1; $i <= $pages; $i+=$linksperpage)
+ {
+ if($this->rs->AbsolutePage() >= $i)
+ {
+ $start = $i;
+ }
+ }
+ $numbers = '';
+ $end = $start+$linksperpage-1;
+ $link = $this->id . "_next_page";
+ if($end > $pages) $end = $pages;
+
+
+ if ($this->startLinks && $start > 1) {
+ $pos = $start - 1;
+ $numbers .= "<a href=$PHP_SELF?$link=$pos>$this->startLinks</a> ";
+ }
+
+ for($i=$start; $i <= $end; $i++) {
+ if ($this->rs->AbsolutePage() == $i)
+ $numbers .= "<font color=$this->linkSelectedColor><b>$i</b></font> ";
+ else
+ $numbers .= "<a href=$PHP_SELF?$link=$i>$i</a> ";
+
+ }
+ if ($this->moreLinks && $end < $pages)
+ $numbers .= "<a href=$PHP_SELF?$link=$i>$this->moreLinks</a> ";
+ print $numbers . ' &nbsp; ';
+ }
+ // Link to previous page
+ function render_prev($anchor=true)
+ {
+ global $PHP_SELF;
+ if ($anchor) {
+ ?>
+ <a href="<?php echo $PHP_SELF,'?',$this->id,'_next_page=',$this->rs->AbsolutePage() - 1 ?>"><?php echo $this->prev;?></a> &nbsp;
+ <?php
+ } else {
+ print "$this->prev &nbsp; ";
+ }
+ }
+
+ //--------------------------------------------------------
+ // Simply rendering of grid. You should override this for
+ // better control over the format of the grid
+ //
+ // We use output buffering to keep code clean and readable.
+ function RenderGrid()
+ {
+ global $gSQLBlockRows; // used by rs2html to indicate how many rows to display
+ include_once(ADODB_DIR.'/tohtml.inc.php');
+ ob_start();
+ $gSQLBlockRows = $this->rows;
+ rs2html($this->rs,$this->gridAttributes,$this->gridHeader,$this->htmlSpecialChars);
+ $s = ob_get_contents();
+ ob_end_clean();
+ return $s;
+ }
+
+ //-------------------------------------------------------
+ // Navigation bar
+ //
+ // we use output buffering to keep the code easy to read.
+ function RenderNav()
+ {
+ ob_start();
+ if (!$this->rs->AtFirstPage()) {
+ $this->Render_First();
+ $this->Render_Prev();
+ } else {
+ $this->Render_First(false);
+ $this->Render_Prev(false);
+ }
+ if ($this->showPageLinks){
+ $this->Render_PageLinks();
+ }
+ if (!$this->rs->AtLastPage()) {
+ $this->Render_Next();
+ $this->Render_Last();
+ } else {
+ $this->Render_Next(false);
+ $this->Render_Last(false);
+ }
+ $s = ob_get_contents();
+ ob_end_clean();
+ return $s;
+ }
+
+ //-------------------
+ // This is the footer
+ function RenderPageCount()
+ {
+ if (!$this->db->pageExecuteCountRows) return '';
+ $lastPage = $this->rs->LastPageNo();
+ if ($lastPage == -1) $lastPage = 1; // check for empty rs.
+ if ($this->curr_page > $lastPage) $this->curr_page = 1;
+ return "<font size=-1>$this->page ".$this->curr_page."/".$lastPage."</font>";
+ }
+
+ //-----------------------------------
+ // Call this class to draw everything.
+ function Render($rows=10)
+ {
+ global $ADODB_COUNTRECS;
+
+ $this->rows = $rows;
+
+ if ($this->db->dataProvider == 'informix') $this->db->cursorType = IFX_SCROLL;
+
+ $savec = $ADODB_COUNTRECS;
+ if ($this->db->pageExecuteCountRows) $ADODB_COUNTRECS = true;
+ if ($this->cache)
+ $rs = $this->db->CachePageExecute($this->cache,$this->sql,$rows,$this->curr_page);
+ else
+ $rs = $this->db->PageExecute($this->sql,$rows,$this->curr_page);
+ $ADODB_COUNTRECS = $savec;
+
+ $this->rs = $rs;
+ if (!$rs) {
+ print "<h3>Query failed: $this->sql</h3>";
+ return;
+ }
+
+ if (!$rs->EOF && (!$rs->AtFirstPage() || !$rs->AtLastPage()))
+ $header = $this->RenderNav();
+ else
+ $header = "&nbsp;";
+
+ $grid = $this->RenderGrid();
+ $footer = $this->RenderPageCount();
+
+ $this->RenderLayout($header,$grid,$footer);
+
+ $rs->Close();
+ $this->rs = false;
+ }
+
+ //------------------------------------------------------
+ // override this to control overall layout and formating
+ function RenderLayout($header,$grid,$footer,$attributes='border=1 bgcolor=beige')
+ {
+ echo "<table ".$attributes."><tr><td>",
+ $header,
+ "</td></tr><tr><td>",
+ $grid,
+ "</td></tr><tr><td>",
+ $footer,
+ "</td></tr></table>";
+ }
+}