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<?php
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class m_form_DiggPagination
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{
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/**
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* Builds & returns a variable containing the HTML code to display pagination links based on given params
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*
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* @param int $page - the current page
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* @param int $totalitems - the number of items to paginate (not total number of pages)
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* @param int $limit - the number of items per page
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* @param int $adjacents - the number of page links to put adjacent to the current page
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* @param string $targetpage - URL to the web page requiring pagination links
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* @param string $pagestring - the URL params to pass the new page value e.g. page/ (the number is inserted at the end of the string)
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* @param string $cssClass - the class of the containing DIV tag for the returned pagination
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* @return void
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* @author Stranger Studios, adapted by Rich Milns
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* @see http://www.strangerstudios.com/sandbox/pagination/diggstyle.php
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*/
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static public function Pager( $page = 1, $totalitems, $limit = 15, $adjacents = 1, $targetpage = null,
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$pagestring = "?page=", $cssClass = 'pagination')
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{
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$sScriptUrl = $_SERVER['SCRIPT_NAME'];
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$query_string = '&' . preg_replace( "/page=[0-9]{0,10}&/", "", $_SERVER['QUERY_STRING']) . '#submissions';
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//$query_string = $_SERVER['QUERY_STRING'];
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//defaults
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if ( !$adjacents) { $adjacents = 1; }
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if ( !$limit) { $limit = 15; }
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if ( !$page) { $page = 1; }
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if ( !$targetpage) { $targetpage = $sScriptUrl; }
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if ( !isset( $margin)) { $margin = 5; }
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if ( !isset( $padding)) { $padding = 1; }
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//other vars
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$prev = $page - 1; //previous page is page - 1
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$next = $page + 1; //next page is page + 1
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$lastpage = ceil( $totalitems / $limit); //lastpage is = total items / items per page, rounded up.
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$lpm1 = $lastpage - 1; //last page minus 1
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/*
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Now we apply our rules and draw the pagination object.
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We're actually saving the code to a variable in case we want to draw it more than once.
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*/
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$pagination = "";
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if ( $lastpage > 1) {
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$pagination .= "<div class=\"" . $cssClass . "\"";
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if ( $margin || $padding) {
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$pagination .= " style=\"";
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if ( $margin) { $pagination .= "margin: $margin;"; }
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if ( $padding) { $pagination .= "padding: $padding;"; }
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$pagination .= "\"";
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}
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$pagination .= ">";
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//previous button
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if ( $page > 1) {
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$pagination .= "<a href=\"$targetpage$pagestring$prev$query_string\">« prev</a>";
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} else {
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$pagination .= "<span class=\"disabled\">« prev</span>";
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}
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//pages
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if ( $lastpage < ( $adjacents * 2) + 7) //not enough pages to bother breaking it up
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{
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for ( $counter = 1; $counter <= $lastpage; $counter++) {
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if ( $counter == $page) {
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$pagination .= "<span class=\"current\">$counter</span>";
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} else {
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$pagination .= "<a href=\"" . $targetpage . $pagestring . $counter . $query_string . "\">$counter</a>";
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}
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}
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} elseif ( $lastpage >= ( $adjacents * 2) + 7) //enough pages to hide some
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{
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//close to beginning; only hide later pages
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if ( $page < 1 + ( $adjacents * 3)) {
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for ( $counter = 1; $counter < 4 + ( $adjacents * 2); $counter++) {
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if ( $counter == $page) {
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$pagination .= "<span class=\"current\">$counter</span>";
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} else {
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$pagination .= "<a href=\"" . $targetpage . $pagestring . $counter . $query_string . "\">$counter</a>";
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}
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}
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$pagination .= "<span class=\"elipses\">...</span>";
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$pagination .= "<a href=\"" . $targetpage . $pagestring . $lpm1 . $query_string . "\">$lpm1</a>";
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$pagination .= "<a href=\"" . $targetpage . $pagestring . $lastpage . $query_string . "\">$lastpage</a>";
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}
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//in middle; hide some front and some back
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elseif ( $lastpage - ( $adjacents * 2) > $page && $page > ( $adjacents * 2)) {
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$pagination .= "<a href=\"" . $targetpage . $pagestring . "1$query_string\">1</a>";
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$pagination .= "<a href=\"" . $targetpage . $pagestring . "2$query_string\">2</a>";
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$pagination .= "<span class=\"elipses\">...</span>";
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for ( $counter = $page - $adjacents; $counter <= $page + $adjacents; $counter++) {
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if ( $counter == $page) {
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$pagination .= "<span class=\"current\">$counter</span>";
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} else {
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$pagination .= "<a href=\"" . $targetpage . $pagestring . $counter . $query_string . "\">$counter</a>";
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}
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}
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$pagination .= "...";
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$pagination .= "<a href=\"" . $targetpage . $pagestring . $lpm1 . $query_string . "\">$lpm1</a>";
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$pagination .= "<a href=\"" . $targetpage . $pagestring . $lastpage . $query_string . "\">$lastpage</a>";
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}
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//close to end; only hide early pages
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else {
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$pagination .= "<a href=\"" . $targetpage . $pagestring . "1$query_string\">1</a>";
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$pagination .= "<a href=\"" . $targetpage . $pagestring . "2$query_string\">2</a>";
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$pagination .= "<span class=\"elipses\">...</span>";
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for ( $counter = $lastpage - ( 1 + ( $adjacents * 3)); $counter <= $lastpage; $counter++) {
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if ( $counter == $page) {
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$pagination .= "<span class=\"current\">$counter</span>";
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} else {
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$pagination .= "<a href=\"" . $targetpage . $pagestring . $counter . $query_string . "\">$counter</a>";
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}
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}
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}
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}
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//next button
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if ( $page < $lastpage - 0) {
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$pagination .= "<a href=\"" . $targetpage . $pagestring . $next . $query_string . "\">next »</a>";
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} else {
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$pagination .= "<span class=\"disabled\">next »</span>";
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}
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$pagination .= "</div>\n";
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}
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return $pagination;
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}
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}
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