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MDL-48807 accesslib: table locking fix on all create_level_instance

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This commit is contained in:
Simey Lameze 2015-02-23 14:25:21 +08:00
parent 95751e81ac
commit 5a39b24b9a
1 changed files with 30 additions and 15 deletions
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45
lib/accesslib.php
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@ -6447,14 +6447,17 @@ class context_user extends context {
protected static function create_level_instances() {
global $DB;
$sql = "INSERT INTO {context} (contextlevel, instanceid)
SELECT ".CONTEXT_USER.", u.id
$sql = "SELECT ".CONTEXT_USER.", u.id
FROM {user} u
WHERE u.deleted = 0
AND NOT EXISTS (SELECT 'x'
FROM {context} cx
WHERE u.id = cx.instanceid AND cx.contextlevel=".CONTEXT_USER.")";
$DB->execute($sql);
if ($contextdata = $DB->get_records_sql($sql)) {
foreach ($contextdata as $context) {
context::insert_context_record(CONTEXT_USER, $context->id, null);
}
}
}
/**
@ -6655,13 +6658,16 @@ class context_coursecat extends context {
protected static function create_level_instances() {
global $DB;
$sql = "INSERT INTO {context} (contextlevel, instanceid)
SELECT ".CONTEXT_COURSECAT.", cc.id
$sql = "SELECT ".CONTEXT_COURSECAT.", cc.id
FROM {course_categories} cc
WHERE NOT EXISTS (SELECT 'x'
FROM {context} cx
WHERE cc.id = cx.instanceid AND cx.contextlevel=".CONTEXT_COURSECAT.")";
$DB->execute($sql);
if ($contextdata = $DB->get_records_sql($sql)) {
foreach ($contextdata as $context) {
context::insert_context_record(CONTEXT_COURSECAT, $context->id, null);
}
}
}
/**
@ -6878,13 +6884,16 @@ class context_course extends context {
protected static function create_level_instances() {
global $DB;
$sql = "INSERT INTO {context} (contextlevel, instanceid)
SELECT ".CONTEXT_COURSE.", c.id
$sql = "SELECT ".CONTEXT_COURSE.", c.id
FROM {course} c
WHERE NOT EXISTS (SELECT 'x'
FROM {context} cx
WHERE c.id = cx.instanceid AND cx.contextlevel=".CONTEXT_COURSE.")";
$DB->execute($sql);
if ($contextdata = $DB->get_records_sql($sql)) {
foreach ($contextdata as $context) {
context::insert_context_record(CONTEXT_COURSE, $context->id, null);
}
}
}
/**
@ -7132,13 +7141,16 @@ class context_module extends context {
protected static function create_level_instances() {
global $DB;
$sql = "INSERT INTO {context} (contextlevel, instanceid)
SELECT ".CONTEXT_MODULE.", cm.id
$sql = "SELECT ".CONTEXT_MODULE.", cm.id
FROM {course_modules} cm
WHERE NOT EXISTS (SELECT 'x'
FROM {context} cx
WHERE cm.id = cx.instanceid AND cx.contextlevel=".CONTEXT_MODULE.")";
$DB->execute($sql);
if ($contextdata = $DB->get_records_sql($sql)) {
foreach ($contextdata as $context) {
context::insert_context_record(CONTEXT_MODULE, $context->id, null);
}
}
}
/**
@ -7349,13 +7361,16 @@ class context_block extends context {
protected static function create_level_instances() {
global $DB;
$sql = "INSERT INTO {context} (contextlevel, instanceid)
SELECT ".CONTEXT_BLOCK.", bi.id
$sql = "SELECT ".CONTEXT_BLOCK.", bi.id
FROM {block_instances} bi
WHERE NOT EXISTS (SELECT 'x'
FROM {context} cx
WHERE bi.id = cx.instanceid AND cx.contextlevel=".CONTEXT_BLOCK.")";
$DB->execute($sql);
if ($contextdata = $DB->get_records_sql($sql)) {
foreach ($contextdata as $context) {
context::insert_context_record(CONTEXT_BLOCK, $context->id, null);
}
}
}
/**