Adding quiz_question.extra field see BT#1914

main/inc/lib/add_course.lib.inc.php

@@ -649,6 +649,7 @@ function update_Db_course($course_db_name) {
         type    tinyint unsigned NOT NULL default 2,
         picture varchar(50) default NULL,        
         level   int unsigned NOT NULL default 0,
+        extra   varchar(255) default NULL,
         PRIMARY KEY (id)
         )" . $charset_clause;
     Database::query($sql);

main/install/migrate-db-1.8.7-1.8.8-pre.sql

@@ -122,6 +122,7 @@ ALTER TABLE lp ADD COLUMN expired_on 	DATETIME NOT NULL DEFAULT '0000-00-00 00:0
 ALTER TABLE lp ADD COLUMN publicated_on DATETIME NOT NULL DEFAULT '0000-00-00 00:00:00';
 
 CREATE TABLE quiz_question_option (id int NOT NULL, name varchar(255), position int unsigned NOT NULL, PRIMARY KEY (id));
+ALTER TABLE quiz_question ADD COLUMN extra varchar(255) DEFAULT NULL;
 
 INSERT INTO course_setting(variable,value,category) VALUES ('enable_lp_auto_launch',0,'learning_path');
 INSERT INTO course_setting(variable,value,category) VALUES ('pdf_export_watermark_text','','course');