1 files changed, 13 insertions, 0 deletions
diff --git a/modules/comment/comment.api.php b/modules/comment/comment.api.php
index acd23bfc3..d7a1ef2c7 100644
--- a/modules/comment/comment.api.php
+++ b/modules/comment/comment.api.php
@@ -12,6 +12,19 @@
  */
 
 /**
+ * The comment passed validation and is about to be saved.
+ *
+ * Modules may make changes to the comment before it is saved to the database.
+ *
+ * @param $comment
+ *   The comment object.
+ */
+function hook_comment_presave($comment) {
+  // Remove leading & trailing spaces from the comment subject.
+  $comment->subject = trim($comment->subject);
+}
+
+/**
  * The comment is being inserted.
  *
  * @param $comment