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MDL-62384 mod_assign: Update to sql query for performance.

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Adrian Greeve 2018-05-10 14:04:05 +08:00 committed by Andrew Nicols
parent 02c7769422
commit 8a5b84cf8b
1 changed files with 45 additions and 7 deletions
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52
mod/assign/classes/privacy/provider.php
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@ -139,15 +139,53 @@ class provider implements metadataprovider, pluginprovider, preference_provider
JOIN {modules} m ON cm.module = m.id AND m.name = :modulename
JOIN {assign} a ON cm.instance = a.id
JOIN {context} ctx ON cm.id = ctx.instanceid AND ctx.contextlevel = :contextlevel
LEFT JOIN {assign_grades} ag ON a.id = ag.assignment
LEFT JOIN {assign_overrides} ao ON a.id = ao.assignid
LEFT JOIN {assign_submission} asn ON a.id = asn.assignment
LEFT JOIN {assign_user_flags} auf ON a.id = auf.assignment
LEFT JOIN {assign_user_mapping} aum ON a.id = aum.assignment
WHERE ag.userid = :userid OR ag.grader = :graderid OR ao.userid = :aouserid
OR asn.userid = :asnuserid OR auf.userid = :aufuserid OR aum.userid = :aumuserid";
JOIN {assign_grades} ag ON a.id = ag.assignment AND (ag.userid = :userid OR ag.grader = :graderid)";
global $DB;
$contextlist = new contextlist();
$contextlist->add_from_sql($sql, $params);
$sql = "SELECT ctx.id
FROM {course_modules} cm
JOIN {modules} m ON cm.module = m.id AND m.name = :modulename
JOIN {assign} a ON cm.instance = a.id
JOIN {context} ctx ON cm.id = ctx.instanceid AND ctx.contextlevel = :contextlevel
JOIN {assign_overrides} ao ON a.id = ao.assignid
WHERE ao.userid = :aouserid";
$contextlist->add_from_sql($sql, $params);
$sql = "SELECT ctx.id
FROM {course_modules} cm
JOIN {modules} m ON cm.module = m.id AND m.name = :modulename
JOIN {assign} a ON cm.instance = a.id
JOIN {context} ctx ON cm.id = ctx.instanceid AND ctx.contextlevel = :contextlevel
JOIN {assign_submission} asn ON a.id = asn.assignment
WHERE asn.userid = :asnuserid";
$contextlist->add_from_sql($sql, $params);
$sql = "SELECT ctx.id
FROM {course_modules} cm
JOIN {modules} m ON cm.module = m.id AND m.name = :modulename
JOIN {assign} a ON cm.instance = a.id
JOIN {context} ctx ON cm.id = ctx.instanceid AND ctx.contextlevel = :contextlevel
JOIN {assign_user_flags} auf ON a.id = auf.assignment
WHERE auf.userid = :aufuserid";
$contextlist->add_from_sql($sql, $params);
$sql = "SELECT ctx.id
FROM {course_modules} cm
JOIN {modules} m ON cm.module = m.id AND m.name = :modulename
JOIN {assign} a ON cm.instance = a.id
JOIN {context} ctx ON cm.id = ctx.instanceid AND ctx.contextlevel = :contextlevel
JOIN {assign_user_mapping} aum ON a.id = aum.assignment
WHERE aum.userid = :aumuserid";
$contextlist->add_from_sql($sql, $params);
manager::plugintype_class_callback('assignfeedback', self::ASSIGNFEEDBACK_INTERFACE,
'get_context_for_userid_within_feedback', [$userid, $contextlist]);
manager::plugintype_class_callback('assignsubmission', self::ASSIGNSUBMISSION_INTERFACE,