Removed tpl_sidebar() to avoid fatal errors in other templates

Replaced it by the old tpl_include_page() and made it more flexible by adding a boolean $propagate parameter.
(It's false by default for backwards compatibility reasons. Should it rather be true? That would probably be what most users want.)

inc/template.php

@@ -1465,14 +1465,17 @@ function tpl_license($img = 'badge', $imgonly = false, $return = false, $wrap =
 }
 
 /**
- * Includes the rendered XHTML of a given page
+ * Includes the rendered HTML of a given page
  *
  * This function is useful to populate sidebars or similar features in a
  * template
  */
-function tpl_include_page($pageid, $print = true) {
+function tpl_include_page($pageid, $print = true, $propagate = false) {
     global $ID;
     global $TOC;
+
+    if ($propagate) $pageid = page_findnearest($pageid);
+
     $oldid  = $ID;
     $oldtoc = $TOC;
     $html   = p_wiki_xhtml($pageid, '', false);
@@ -1484,17 +1487,6 @@ function tpl_include_page($pageid, $print = true) {
     return $html;
 }
 
-/**
- * Include the sidebar, will check current namespaces first
- */
-function tpl_sidebar($print = true) {
-    global $conf;
-
-    $sidebar = page_findnearest($conf['sidebar']);
-    if($sidebar) return tpl_include_page($sidebar, $print);
-    return '';
-}
-
 /**
  * Display the subscribe form
  *

lib/tpl/dokuwiki/main.php

@@ -42,7 +42,7 @@ class="dokuwiki site mode_<?php echo $ACT ?> <?php echo ($showSidebar) ? 'showSi
                     <div class="content">
                         <?php tpl_flush() ?>
                         <?php tpl_includeFile('sidebarheader.html') ?>
-                        <?php tpl_sidebar() ?>
+                        <?php tpl_include_page($conf['sidebar'], 1, 1) ?>
                         <?php tpl_includeFile('sidebarfooter.html') ?>
                     </div>
                 </div></div><!-- /aside -->