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Student and teacher enrolments now unique

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Made student and teacher enrolments unique, enforced at the database level. This patch also removes a cleanup job in moodle's cron that removed duplicate enrolments.
The database changes are rolled as part of a version bump that we are *deferring* on MOODLE_14_STABLE.

Merge of patchset  [email protected]/moodle--eduforge--1.3.3--patch-422
This commit is contained in:
martinlanghoff
2004-11-24 02:20:46 +00:00
parent 1a0c7e470b
commit 7a2596f854
5 changed files with 63 additions and 18 deletions
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lib/db/postgres7.sql
+2 -2
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@@ -289,7 +289,7 @@ CREATE TABLE prefix_user_students (
timeaccess integer NOT NULL default '0'
);
CREATE INDEX prefix_user_students_courseuserid_idx ON prefix_user_students (course,userid);
CREATE UNIQUE INDEX prefix_user_students_courseuserid_uk ON prefix_user_students (course,userid);
CREATE INDEX prefix_user_students_userid_idx ON prefix_user_students (userid);
CREATE INDEX prefix_user_students_timeaccess_idx ON prefix_user_students (timeaccess);
@@ -306,7 +306,7 @@ CREATE TABLE prefix_user_teachers (
timeaccess integer NOT NULL default '0'
);
CREATE INDEX prefix_user_teachers_courseuserid_idx ON prefix_user_teachers (course,userid);
CREATE UNIQUE INDEX prefix_user_teachers_courseuserid_uk ON prefix_user_teachers (course,userid);
CREATE INDEX prefix_user_teachers_userid_idx ON prefix_user_teachers (userid);
CREATE TABLE prefix_user_coursecreators (