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authorAndrey Andreev <narf@devilix.net>2016-10-28 12:16:38 +0200
committerAndrey Andreev <narf@devilix.net>2016-10-28 12:16:38 +0200
commit8bb7f7f50e99407c5f4def6e2f8e429245bd8613 (patch)
tree38098efa1ee732815bdd7e9b3bc5a28945de5161 /user_guide_src/source
parentbe4bab99fc8165858568e0278492aaebecee68f0 (diff)
[ci skip] Add upgrade instructions for CI_Sessions
Diffstat (limited to 'user_guide_src/source')
-rw-r--r--user_guide_src/source/installation/upgrade_312.rst26
1 files changed, 26 insertions, 0 deletions
diff --git a/user_guide_src/source/installation/upgrade_312.rst b/user_guide_src/source/installation/upgrade_312.rst
index 91467233e..e0b2191dd 100644
--- a/user_guide_src/source/installation/upgrade_312.rst
+++ b/user_guide_src/source/installation/upgrade_312.rst
@@ -12,3 +12,29 @@ Replace all files and directories in your *system/* directory.
.. note:: If you have any custom developed files in these directories,
please make copies of them first.
+
+Step 2: Update your "ci_sessions" database table
+================================================
+
+If you're using the :doc:`Session Library </libraries/sessions>` with the
+'database' driver, you may have to ``ALTER`` your sessions table for your
+sessions to continue to work.
+
+.. note:: The table in question is not necessarily named "ci_sessions".
+ It is what you've set as your ``$config['sess_save_path']``.
+
+This will only affect you if you've changed your ``session.hash_function``
+*php.ini* setting to something like 'sha512'. Or if you've been running
+an older CodeIgniter version on PHP 7.1+.
+
+It is recommended that you do this anyway, just to avoid potential issues
+in the future if you do change your configuration.
+
+Just execute the one of the following SQL queries, depending on your
+database::
+
+ // MySQL:
+ ALTER TABLE ci_sessions CHANGE id id varchar(128) NOT NULL;
+
+ // PostgreSQL
+ ALTER TABLE ci_sessions ALTER COLUMN id SET DATA TYPE varchar(128);