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-rw-r--r--modules/filter/filter.module7
1 files changed, 5 insertions, 2 deletions
diff --git a/modules/filter/filter.module b/modules/filter/filter.module
index 27ae02cf3..9e1481207 100644
--- a/modules/filter/filter.module
+++ b/modules/filter/filter.module
@@ -760,9 +760,12 @@ function check_markup($text, $format_id = NULL, $langcode = '', $cache = FALSE)
}
}
- // Store in cache with a minimum expiration time of 1 day.
+ // Cache the filtered text. This cache is infinitely valid. It becomes
+ // obsolete when $text changes (which leads to a new $cache_id). It is
+ // automatically flushed when the text format is updated.
+ // @see filter_format_save()
if ($cache) {
- cache_set($cache_id, $text, 'cache_filter', REQUEST_TIME + (60 * 60 * 24));
+ cache_set($cache_id, $text, 'cache_filter');
}
return $text;