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MDL-21432 backup - helper function for restoring course/role names and date_offset

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This commit is contained in:
Eloy Lafuente
2010-07-21 15:50:06 +00:00
parent b3b41f3856
commit 4bca307a40
2 changed files with 100 additions and 0 deletions
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backup/util/dbops/restore_dbops.class.php
+57
View File
@@ -830,6 +830,63 @@ abstract class restore_dbops {
}
return $dbrec;
}
/**
* Given on courseid, fullname and shortname, calculate the correct fullname/shortname to avoid dupes
*/
public static function calculate_course_names($courseid, $fullname, $shortname) {
global $CFG, $DB;
$currentfullname = '';
$currentshortname = '';
$counter = 0;
// Iteratere while the name exists
do {
if ($counter) {
$suffixfull = ' ' . get_string('copyasnoun') . ' ' . $counter;
$suffixshort = '_' . $counter;
} else {
$suffixfull = '';
$suffixshort = '';
}
$currentfullname = $fullname.$suffixfull;
$currentshortname = substr($shortname, 0, 100 - strlen($suffixshort)).$suffixshort; // < 100cc
$coursefull = $DB->get_record_select('course', 'fullname = ? AND id != ?', array($currentfullname, $courseid));
$courseshort = $DB->get_record_select('course', 'shortname = ? AND id != ?', array($currentshortname, $courseid));
$counter++;
} while ($coursefull || $courseshort);
// Return results
return array($currentfullname, $currentshortname);
}
/**
* For the target course context, put as many custom role names as possible
*/
public static function set_course_role_names($restoreid, $courseid) {
global $DB;
// Get the course context
$coursectx = get_context_instance(CONTEXT_COURSE, $courseid);
// Get all the mapped roles we have
$rs = $DB->get_recordset('backup_ids_temp', array('backupid' => $restoreid, 'itemname' => 'role'), '', 'itemid');
foreach ($rs as $recrole) {
// Get the complete temp_ids record
$role = (object)self::get_backup_ids_record($restoreid, 'role', $recrole->itemid);
// If it's one mapped role
if (!empty($role->newitemid)) {
// If role name doesn't exist, add it
$rolename = new stdclass();
$rolename->roleid = $role->newitemid;
$rolename->contextid = $coursectx->id;
if (!$DB->record_exists('role_names', (array)$rolename)) {
$rolename->name = $role->info['nameincourse'];
$DB->insert_record('role_names', $rolename);
}
}
}
$rs->close();
}
}
/*
backup/util/plan/restore_structure_step.class.php
+43
View File
@@ -255,6 +255,49 @@ abstract class restore_structure_step extends restore_step {
$filearea, $filesctxid, $mappingitemname);
}
/**
* Apply course startdate offset based in original course startdate and course_offset_startdate setting
* Note we are using one static cache here, but *by restoreid*, so it's ok for concurrence/multiple
* executions in the same request
*/
protected function apply_date_offset($value) {
static $cache = array();
// Lookup cache
if (isset($cache[$this->get_restoreid()])) {
return $value + $cache[$this->get_restoreid()];
}
// No cache, let's calculate the offset
$original = $this->task->get_info()->original_course_startdate;
// TODO: Get startdate from settings
debugging ('review these lines of apply_date_offset() to start using the "course_startdate" setting', DEBUG_DEVELOPER);
// $setting = $this->get_setting_value('course_startdate');
// TODO: Delete this line once we are getting the var above from settings
$setting = $original;
// Original course has not startdate, offset = 0
if (empty($original)) {
$cache[$this->get_restoreid()] = 0;
// Less than 24h of difference, offset = 0 (this avoids some problems with timezones)
} else if (abs($setting - $original) < 24 * 60 * 60) {
$cache[$this->get_restoreid()] = 0;
// Re-enforce 'moodle/restore:rolldates' capability for the user in the course, just in case
} else if (!has_capability('moodle/restore:rolldates',
get_context_instance(CONTEXT_COURSE, $this->get_courseid()),
$this->get_userid())) {
$cache[$this->get_restoreid()] = 0;
// Arrived here, let's calculate the real offset
} else {
$cache[$this->get_restoreid()] = $setting - $original;
}
// Return the passed value with cached offset applied
return $value + $cache[$this->get_restoreid()];
}
/**
* Function that will return the structure to be processed by this restore_step.
* Must return one array of @restore_path_element elements