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merged fix for MDL-11909, putting a unique constraint userid-itemid on grade_grades table

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toyomoyo 2007-11-08 02:01:34 +00:00
parent 2eb467b3b5
commit 1dda50ea08
3 changed files with 18 additions and 3 deletions
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5
lib/db/install.xml
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@ -1,5 +1,5 @@
<?xml version="1.0" encoding="UTF-8" ?>
<XMLDB PATH="lib/db" VERSION="20071010" COMMENT="XMLDB file for core Moodle tables"
<XMLDB PATH="lib/db" VERSION="20071108" COMMENT="XMLDB file for core Moodle tables"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:noNamespaceSchemaLocation="../../lib/xmldb/xmldb.xsd"
>
@ -1301,7 +1301,8 @@
<KEY NAME="itemid" TYPE="foreign" FIELDS="itemid" REFTABLE="grade_items" REFFIELDS="id" PREVIOUS="primary" NEXT="userid"/>
<KEY NAME="userid" TYPE="foreign" FIELDS="userid" REFTABLE="user" REFFIELDS="id" PREVIOUS="itemid" NEXT="rawscaleid"/>
<KEY NAME="rawscaleid" TYPE="foreign" FIELDS="rawscaleid" REFTABLE="scale" REFFIELDS="id" PREVIOUS="userid" NEXT="usermodified"/>
<KEY NAME="usermodified" TYPE="foreign" FIELDS="usermodified" REFTABLE="user" REFFIELDS="id" PREVIOUS="rawscaleid"/>
<KEY NAME="usermodified" TYPE="foreign" FIELDS="usermodified" REFTABLE="user" REFFIELDS="id" PREVIOUS="rawscaleid" NEXT="userid-itemid"/>
<KEY NAME="userid-itemid" TYPE="unique" FIELDS="userid, itemid" COMMENT="one entry per user per item" PREVIOUS="usermodified"/>
</KEYS>
<INDEXES>
<INDEX NAME="locked-locktime" UNIQUE="false" FIELDS="locked, locktime" COMMENT="used in grading cron"/>

14
lib/db/upgrade.php
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@ -2585,6 +2585,20 @@ function xmldb_main_upgrade($oldversion=0) {
}
}
if ($result && $oldversion < 2007101502) {
/// Define key userid-itemid (unique) to be added to grade_grades
$table = new XMLDBTable('grade_grades');
$key = new XMLDBKey('userid-itemid');
$key->setAttributes(XMLDB_KEY_UNIQUE, array('userid', 'itemid'));
/// Launch add key userid-itemid
$result = $result && add_key($table, $key);
/// Main savepoint reached
upgrade_main_savepoint($result, 2007101502);
}
return $result;
}

2
version.php
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@ -6,7 +6,7 @@
// This is compared against the values stored in the database to determine
// whether upgrades should be performed (see lib/db/*.php)
$version = 2007101501; // YYYYMMDD = date
$version = 2007101502; // YYYYMMDD = date
// XY = increments within a single day
$release = '2.0 dev'; // Human-friendly version name