add icommentsmanger and icomment implementation

register CommentsManager service, allow override, document in config.sample.php

don't insert autoincrement ids in tests, because of dislikes from oracle and pgsql

specify timezone in null date

only accepts strings for ID parameter that can be converted to int

replace forgotten hardcoded IDs in tests

react on deleted users

react on file deletion

Postgresql compatibility

lastInsertId needs *PREFIX* with the table name

do not listen for file deletion, because it is not reliable (trashbin, external storages)

add runtime cache for comments

1 files changed, 13 insertions, 0 deletions

diff --git a/config/config.sample.php b/config/config.sample.php
index c3abe3a2b87..9b10792944f 100644
--- a/config/config.sample.php
+++ b/config/config.sample.php
@@ -815,6 +815,19 @@ $CONFIG = array(
 'enforce_home_folder_naming_rule' => true,
 
 /**
+ * Comments
+ *
+ * Global settings for the Comments infrastructure
+ */
+
+/**
+ * Replaces the default Comments Manager Factory. This can be utilized if an
+ * own or 3rdParty CommentsManager should be used that – for instance – uses the
+ * filesystem instead of the database to keep the comments.
+ */
+'comments.managerFactory' => '\OC\Comments\ManagerFactory',
+
+/**
  * Maintenance
  *
  * These options are for halting user activity when you are performing server