check for availability of local/combined (and try to create it if not available)

git-svn-id: http://piwigo.org/svn/trunk@9594 68402e56-0260-453c-a942-63ccdbb3a9ee

include/template.class.php

@@ -79,6 +79,27 @@ class Template {
       }
     }
 
+    if (!isset($conf['combined_dir_checked']))
+    {
+      mkgetdir(PWG_COMBINED_DIR, MKGETDIR_DEFAULT&~MKGETDIR_DIE_ON_ERROR);
+      if (!is_writable(PWG_COMBINED_DIR))
+      {
+        load_language('admin.lang');
+        fatal_error(
+          sprintf(
+            l10n('Give write access (chmod 777) to "%s" directory at the root of your Piwigo installation'),
+            PWG_COMBINED_DIR
+            ),
+          l10n('an error happened'),
+          false // show trace
+          );
+      }
+      if (function_exists('pwg_query')) {
+        conf_update_param('combined_dir_checked', 'true');
+      }
+    }
+
+
     $compile_dir = $conf['local_data_dir'].'/templates_c';
     mkgetdir( $compile_dir );