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Added a help block at the beginning of the file,

Browse Source 
which informs about how it works and what is supported.
This commit is contained in:
Achim Ennenbach 2018-06-15 18:58:15 +02:00
parent a7f1271eb4
commit 4f568aec52
1 changed files with 45 additions and 0 deletions

45
e107_plugins/_blank/blank_sql.php

@ -1,3 +1,48 @@
/**
* e107 website system
*
* Copyright (C) 2008-2013 e107 Inc (e107.org)
* Released under the terms and conditions of the
* GNU General Public License (http://www.gnu.org/licenses/gpl.txt)
*
* INFORMATION
*
* BEFORE DOING ANY DATABASE CHANGES OR UPDATES, CREATE A FRESH BACKUP!!!
*
* Add the SQL statements for your table here.
* Make sure that you do not add the e107 table prefix (by default e107) to the table name!!
* This file will be analyzed on plugin install and missing tables will be installed automatically.
* To check if the table structure is still valid, run the "Tools -> Database -> Check for Updates" command.
* Any differences between the defined structure here and the table structure on the server will than be detected.
* In another step, you are able to update the table structure to the latest version from this file!
*
*
* For the moment, the following operations are supported:
* -------------------------------------------------------
* - Create table
* - Change field type, field size, field null or not, field default value
* - Add index
*
*
* What is currently NOT supported:
* --------------------------------
* - Rename table (by renaming the tablename, e.g. "blank" > "blank2"). The renamed table will be considered as new!
* - Drop a table (e.g. if you remove the "blank" table definition from this file, the table will NOT be deleted from the database!)
* - Rename or drop a field (a renamed field will be considered new, a missing field definition will NOT be recognized at all!)
* - Change an index/key (e.g. the change is recognized, but leads to an error message and the change is not applied)
* - Rename or drop an index/key (Rename is recognized as a new index and the missing index is not recognized at all!)
* - A field definition containing "NULL DEFAULT NULL". The "Check for updates" method will always detect a change,
* but fails silently when trying to update. In that case remove the first "NULL" and run the the "Check for updates" again.
*
*
* How to rename or drop tables, fields and indexes or modify indexes:
* -------------------------------------------------------------------
* There are methods that can be used to detect tables, fields and indexes. Some examples of how to use them
* can be found in the "_blank_setup.php". There are also examples on how to drop a field or index or to check for specific properties.
* Other examples can be found also in the "forum_setup.php"
*/
CREATE TABLE blank (
`blank_id` int(10) NOT NULL AUTO_INCREMENT,
`blank_icon` varchar(255) NOT NULL,