Started working on a study program.

1 files changed, 61 insertions, 0 deletions

diff --git a/lib/functions.php b/lib/functions.php
index 549ed3b..6190818 100644
--- a/lib/functions.php
+++ b/lib/functions.php
@@ -50,3 +50,64 @@ function assert_error($a, $e, $t = "") {
 		die();
 	}
 }
+
+
+// **** DISPLAY FILTERS *******
+
+function get_filter($name) {
+	global $filters, $fdefaults;
+	if (!isset($filters[$name])) return "";
+	$v = (isset($_GET[$name]) ? $_GET[$name] : "");
+	if (!isset($filters[$name][$v])) return $fdefaults[$name];
+	return $v;
+}
+
+function filter_html_entry($name, $entry) {
+	global $filters, $filters_defaults, $url;
+	if (!isset($filters[$name])) return "";
+	if (!isset($filters[$name][$entry])) return "";
+	$rurl = array("p=".$url, $name . "=" . $entry);
+	foreach ($filters as $filter => $n) {
+		if ($filter != $name) {
+			$rurl[] = ($filter . "=" . get_filter($filter));
+		}
+	}
+	return '<a href="index.php?' . implode("&", $rurl) . '">' . $filters[$name][$entry] . '</a>';
+}
+
+function filter_html($name) {
+	global $filters, $filters_defaults;
+	if (!isset($filters[$name])) return "";
+	$r = array();
+	foreach ($filters[$name] as $v => $t) {
+		if (get_filter($name) == $v) {
+			$r[] = "<b>" . $t . "</b>";
+		} else {
+			$r[] = filter_html_entry($name, $v);
+		}
+	}
+	return implode(", ", $r);
+}
+
+function filters_html() {
+	global $filters;
+	$r = array();
+	foreach ($filters as $k => $filter) {
+		$r[$k] = filter_html($k);
+	}
+	return $r;
+}
+
+function filters_html_full() {
+	global $filters_names;
+	$r = array();
+	foreach (filters_html() as $f => $h) {
+		$r[] = $f . " (" . $h . ")";
+	} 
+	return implode(", ", $r);
+}
+
+$ord_ways = array (
+	"ASC" => "ascending",
+	"DESC" => "descending"
+);