. ** $limit: how many nodes are displayed per page ** $element: support for multiple pagers per page (specify which ** this is) ** $type: allows for distinction between pagers on main page and ** admin page, etc. Supported types are "default", "admin" ** and "simple". */ function pager_display($tags = "", $limit = 10, $element = 0, $type = "default") { return theme_invoke("pager_display_". $type, $tags, $limit, $element); } /* ** DEFAULT PAGER: ** When writing themes, you can rewrite this pager function in your ** theme. This is the most common pager type, and thus the main one ** to re-write in your theme. */ function pager_display_default($tags = "", $limit = 10, $element = 0) { $output .= ""; $output .= ""; $output .= ""; $output .= ""; $output .= ""; $output .= ""; $output .= "

". pager_first(($tags[0] ? $tags[0] : t("first page")), $limit, $element) ."

". pager_previous(($tags[1] ? $tags[1] : t("previous page")), $limit, $element) ."

". pager_list($limit, $element, ($tags[2] ? $tags[2] : 9 )) ."

". pager_next(($tags[3] ? $tags[3] : t("next page")), $limit, $element) ."

". pager_last(($tags[4] ? $tags[4] : t("last page")), $limit, $element) ."

"; return "$output"; } /* ** SIMPLE PAGER: ** When writing themes, if you rewrite this pager function in your ** theme, keep in mind that the pager it defines is intended to have ** a "simple" look, possibly located in a table or block. */ function pager_display_simple($tags = "", $limit = 10, $element = 0) { /* ** It's left as an exercise to theme writers to create an alternative ** pager for pager_display_simple(). if your theme does not offer a ** replacement, the theme.inc pager_display_default() is used. */ return pager_display_default($tags, $limit, $element); } /* ** ADMIN PAGER: ** When writing themes, you can rewrite this pager function in your ** theme. Most themes will probably NOT re-write this function, as ** admin pages are not normally themed. */ function pager_display_admin($tags = "", $limit = 10, $element = 0) { /* ** It's left as an exercise to theme writers to create an alternative ** pager for pager_display_admin(). if your theme does not offer a ** replacement, the pager.inc pager_display_default() is used. */ return pager_display_default($tags, $limit, $element); } /********************************************************************* * PAGER PIECES: * Use these pieces to construct your own custom pagers (i.e. in * themes). Note that you should NOT modify this file to customize * your pager) ********************************************************************/ /* ** pager_first: displays a "first-page" link ** $text: defines the name (or image) of the link ** $limit: how many nodes are displayed per page ** $element: distinguish between multiple pagers on one page */ function pager_first($text, $limit, $element = 0) { global $from_array; if ($from_array[$element]) { return "$text"; } else { // we are already at the first page, return nothing return " "; } } /* ** pager_previous: displays a "previous-page" link ** $text: defines the name (or image) of the link ** $limit: how many nodes are displayed per page ** $element: distinguish between multiple pagers on one page ** $n: how many pages we move back (defaults to 1) */ function pager_previous($text, $limit, $element = 0, $n = 1) { global $from_array; $from_new = pager_load_array(((int)$from_array[$element] - ((int)$limit * (int)$n)), $element, $from_array); if ($from_new[$element] < 1) { return pager_first($text, $limit, $element); } return "$text"; } /* ** pager_next: displays a "next-page" link ** $text: defines the name (or image) of the link ** $limit: how many nodes are displayed per page ** $element: distinguish between multiple pagers on one page ** $n: how many pages we move forward (defaults to 1) */ function pager_next($text, $limit, $element = 0, $n = 1) { global $from_array, $pager_total; $from_new = pager_load_array(((int)$from_array[$element] + ((int)$limit * (int)$n)), $element, $from_array); if ($from_new[$element] < $pager_total[$element]) { return "$text"; } return " "; } /* ** pager_last: displays a "last-page" link ** $text: defines the name (or image) of the link ** $limit: how many nodes are displayed per page ** $element: distinguish between multiple pagers on one page */ function pager_last($text, $limit, $element = 0) { global $from_array, $pager_total; $from_new = pager_load_array(($pager_total[$element] - $limit), $element, $from_array); if ($from_new[$element] < ($from_array[$element] + $limit)) { return pager_next($text, $limit, $element); } if (($from_new[$element] > $from_array[$element]) && ($from_new[$element] > 0) && $from_new[$element] < $pager_total[$element]) { return "$text"; } return " "; } /* ** pager_detail: displays "%d through %d of $d" type detail about the cur page ** $limit: how many nodes are displayed per page ** $element: distinguish between multiple pagers on one page ** $format: allows you to reword the format string */ function pager_detail($limit, $element = 0, $format = "%d through %d of %d.") { global $from_array, $pager_total; if ($pager_total[$element] > (int)$from_array[$element] + 1) { $output = sprintf($format, (int)$from_array[$element] + 1, ((int)$from_array[$element] + $limit <= $pager_total[$element] ? (int)$from_array[$element] + $limit : $pager_total[$element]), $pager_total[$element]); } return $output; } /* ** pager_list: displays a list of nearby pages with additional nodes ** $limit: how many nodes are displayed per page ** $element: distinguish between multiple pagers on one page ** $quantity: defines the length of the page list ** $text: optional text to display before the page list */ function pager_list($limit, $element = 0, $quantity = 5, $text = "") { global $from_array, $pager_total; // calculate various markers within this pager piece: // middle used to "center" pages around current page $pager_middle = ceil((int)$quantity / 2); // offset adds "offset" second page $pager_offset = (int)$from_array[$element] % (int)$limit; // current is the page we are currently paged to if (($pager_current = (ceil(($from_array[$element] + 1) / $limit))) < 1) { $pager_current = 1; } // first is the first page listed by this pager piece (re quantity) $pager_first = (int)$pager_current - (int)$pager_middle + 1; // last is the last page listed by this pager piece (re quantity) $pager_last = (int)$pager_current + (int)$quantity - (int)$pager_middle; // max is the maximum number of pages content can is devided into if (!$pager_max = (ceil($pager_total[$element] / $limit))) { $pager_max = 1; } if ((int)$pager_offset) { // adjust for offset second page $pager_max++; $pager_current++; } // end of various marker calculations // prepare for generation loop $i = (int)$pager_first; if ($pager_last > $pager_max) { // adjust "center" if at end of query $i = $i + (int)($pager_max - $pager_last); $pager_last = $pager_max; } if ($i <= 0) { // adjust "center" if at start of query $pager_last = $pager_last + (1 - $i); $i = 1; } // end of generation loop preparation // when there is more than one page, create the pager list if ($i != $pager_max) { $output = "$text"; if ($i > 1) { $output .= "... "; } // finally we're ready to generate the actual pager piece for (; $i <= $pager_last && $i <= $pager_max; $i++) { if ($i < $pager_current) { $output .= pager_previous($i, $limit, $element, ($pager_current - $i)) ." "; } if ($i == $pager_current) { $output .= "$i "; } if ($i > $pager_current) { $output .= pager_next($i, $limit, $element, ($i - $pager_current)) ." "; } } if ($i < $pager_max) { $output .= "..."; } } return $output; } /********************************************************************* * QUERIES - call this instead of db_query() if you want your query to * support a pager. *********************************************************************/ /* ** Use this function when doing select queries you wish to be able to page ** $query, the database query *without* "LIMIT" in it ** examples : "SELECT * FROM table" ** : "SELECT field1,field2 FROM table WHERE nid = '1'" ** $limit, how many rows to return (per page) [OPTIONAL] ** $element, adds support for multiple paged tables on one page [OPTIONAL] */ function db_query_pager($query, $limit = 10, $element = 0) { global $from, $from_array, $db_type, $pager_total; // count the total number of records in this query: $pager_total[$element] = array_pop(db_fetch_array(db_query(preg_replace("/SELECT.*FROM/i", "SELECT COUNT(*) as count FROM", $query)))); // convert comma separated $from to an array, used by other functions: $from_array = explode(",", $from); if ((int)$from_array[$element]) { if ($db_type == "mysql") { // MySQL formatted limit query with offset: $limit_query = $query . " LIMIT " . (int)$from_array[$element] . ", $limit"; } else { // pear formatted limit query with offset: $limit_query = $query . " LIMIT $limit OFFSET " . (int)$from_array[$element]; } } else { // standard limit query without offset: $limit_query = $query . " LIMIT $limit"; } return db_query($limit_query); } function pager_link($from_new) { $from_list = @implode(",", $from_new); if ("$from_list" == "0") { // single pager at zero, so remove the $from return preg_replace(array("/from=*[^&]*/", "/[&]$/", "/[?]$/"), "", request_uri()); } if (preg_match("/from=/", request_uri())) { // replace existing from= return preg_replace("/from=*[^&]*/", "from=$from_list", request_uri()); } if (preg_match("/[?]/", request_uri())) { // append &from= $href = request_uri() . "&from=$from_list"; } else { // append ?from= $href = request_uri() . "?from=$from_list"; } return $href; } function pager_load_array($value, $element, $old_array) { $new_array = $old_array; // look for empty elements for ($i = 0; $i < $element; $i++) { if (!$new_array[$i]) { // load found empty element with 0 $new_array[$i] = 0; } } // update the changed element $new_array[$element] = (int)$value; return $new_array; } ?>