upgrade

plugin/card_game/README.md

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+Card reveal game Chamilo plugin
+===============================
+This plugin adds a little game to the interface to encourage users to connect
+every day.
+
+# Installation
+
+To install, enable the plugin, then go to "Regions" in the administration panel
+and add the region "pre_footer" to the plugin. Save.
+The plugin should appear as a little icon in the lower-right side of your user
+picture in the left column of the "My courses" list.
+
+## Migrating from a non-official version
+This plugin was initially designed by _Les Compagnons Bâtisseurs_. If you had
+used it before its review and integration into Chamilo, you will need to
+execute the following changes in your database to update its structure.
+
+##### Database changes
+You need execute these SQL queries in your database if you are upgrading to 
+Chamilo 1.11.8 and the card_game plugin was already installed in your previous version.
+
+```sql
+ALTER TABLE plugin_card_game CHANGE COLUMN idUser user_id INT NOT NULL;
+ALTER TABLE plugin_card_game CHANGE COLUMN dateAcces access_date date default NULL;
+
+```