1 files changed, 92 insertions, 0 deletions
diff --git a/includes/tablesort.inc b/includes/tablesort.inc
new file mode 100644
index 000000000..184176114
--- /dev/null
+++ b/includes/tablesort.inc
@@ -0,0 +1,92 @@
+<?php
+
+function tablesort_init($header) {
+  static $ts;
+
+  if (!$ts) {
+    $ts["order"] = tablesort_get_order($header);
+    $ts["order_sql"] = tablesort_get_order_sql($header, $ts["order"]);
+    $ts["sort"] = tablesort_get_sort($header);
+    $ts["query_string"] = tablesort_get_querystring();
+  }
+  return $ts;
+}
+
+function tablesort_pager() {
+  return array ("order" => $_GET['order'], "sort" => $_GET['sort']);
+}
+
+function tablesort_sql($header) {
+  $ts = tablesort_init($header);
+  return " ORDER BY ". $ts["order_sql"]. " ". strtoupper($ts["sort"]);
+}
+
+function tablesort($cell, $header) {
+  global $theme;
+
+  $ts = tablesort_init($header);
+
+  // special formatting for the currently sorted column header
+  if ($cell["data"] == $ts["order"]) {
+    $cell["class"] = "cell-highlight";
+    $image = "&nbsp;<img src=\"". $theme->image("arrow-". $ts["sort"]. ".gif"). "\"></img>";
+  }
+  $cell["data"] = l($cell["data"], $_GET["q"], array(), "sort=". $ts["sort"]. "&order=". urlencode($cell["data"]). $ts["query_string"]). $image;
+  return $cell;
+}
+
+function tablesort_get_querystring() {
+  $cgi = $_SERVER['REQUEST_METHOD'] == 'GET' ? $_GET : $_POST;
+  // reset ($cgi);
+  foreach ($cgi as $key => $val) {
+    if ($key != "order" && $key != "sort" && $key != "q") {
+      $query_string .= "&" . $key . "=" . $val;
+    }
+  }
+  return $query_string;
+}
+
+function tablesort_get_order($headers) {
+  if ($_GET['order'] != NULL) {
+    return $_GET['order'];
+  }
+  else {
+    foreach ($headers as $header) {
+      if ($header["sort"] == 'asc' || $header["sort"] == 'desc') {
+        return $header["data"];
+      }
+      elseif (!$first) {
+        // the first column specified is initial 'order by' field unless otherwise specified
+        $first = $header["data"];
+      }
+    }
+    return $first;
+  }
+}
+
+function tablesort_get_order_sql($header, $order) {
+  foreach ($header as $cell) {
+    if ($cell["data"] == $order) {
+      return $cell["field"];
+    }
+  }
+}
+
+function tablesort_get_sort($headers) {
+  if ($_GET['sort']) {
+    return ($_GET['sort'] == 'desc') ? 'asc' : 'desc';
+  }
+  // user has not specified a sort.  check module for default and if none, use 'asc'
+  else {
+    foreach ($headers as $header) {
+      if (isset($header["sort"])) {
+        return $header["sort"];
+      }
+    }
+  }
+  return 'asc';
+}
+
+
+
+?>