data MDL-23488 made available from/to work

lang/en_utf8/data.php

@@ -87,6 +87,7 @@
 $string['errormustbeteacher'] = 'You need to be a teacher to use this page!';
 $string['example'] = 'Database module example';
 $string['excel'] = 'Excel';
+$string['expired'] = 'Sorry, this activity closed on {$a} and is no longer available';
 $string['export'] = 'Export';
 $string['exportaszip'] = 'Export as zip';
 $string['exportdatabaserecords'] = 'Export Database records';
@@ -180,6 +181,7 @@
 $string['nosingletemplate'] = 'Single template is not yet defined';
 $string['notapproved'] = 'Entry is not approved yet.';
 $string['notinjectivemap'] = 'Not an injective map';
+$string['notopenyet'] = 'Sorry, this activity is not available until {$a}';
 $string['number'] = 'Number';
 $string['numberrssarticles'] = 'RSS articles';
 $string['numnotapproved'] = 'Pending';

mod/data/lib.php

@@ -1683,6 +1683,13 @@ function data_user_can_add_entry($data, $currentgroup, $groupmode) {
     if (!has_capability('mod/data:writeentry', $context) and !has_capability('mod/data:manageentries',$context)) {
         return false;
     }
+
+    //if in the view only time window
+    $now = time();
+    if ($now>$data->timeviewfrom && $now<$data->timeviewto) {
+        return false;
+    }
+
     if (!$groupmode or has_capability('moodle/site:accessallgroups', $context)) {
         return true;
     }