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MDL-41437 implement new block, enrol and course format pluginfo uninstall methods

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This commit is contained in:
Petr Škoda
2013-09-25 10:12:11 +02:00
parent 3e51580be3
commit 74762da37f
2 changed files with 95 additions and 50 deletions
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lib/adminlib.php
-50
View File
@@ -231,56 +231,6 @@ function uninstall_plugin($type, $name) {
}
}
}
} else if ($type === 'enrol') {
// NOTE: this is a bit brute force way - it will not trigger events and hooks properly
// nuke all role assignments
role_unassign_all(array('component'=>$component));
// purge participants
$DB->delete_records_select('user_enrolments', "enrolid IN (SELECT id FROM {enrol} WHERE enrol = ?)", array($name));
// purge enrol instances
$DB->delete_records('enrol', array('enrol'=>$name));
// tweak enrol settings
if (!empty($CFG->enrol_plugins_enabled)) {
$enabledenrols = explode(',', $CFG->enrol_plugins_enabled);
$enabledenrols = array_unique($enabledenrols);
$enabledenrols = array_flip($enabledenrols);
unset($enabledenrols[$name]);
$enabledenrols = array_flip($enabledenrols);
if (is_array($enabledenrols)) {
set_config('enrol_plugins_enabled', implode(',', $enabledenrols));
}
}
} else if ($type === 'block') {
if ($block = $DB->get_record('block', array('name'=>$name))) {
// Inform block it's about to be deleted
if (file_exists("$CFG->dirroot/blocks/$block->name/block_$block->name.php")) {
$blockobject = block_instance($block->name);
if ($blockobject) {
$blockobject->before_delete(); //only if we can create instance, block might have been already removed
}
}
// First delete instances and related contexts
$instances = $DB->get_records('block_instances', array('blockname' => $block->name));
foreach($instances as $instance) {
blocks_delete_instance($instance);
}
// Delete block
$DB->delete_records('block', array('id'=>$block->id));
}
} else if ($type === 'format') {
if (($defaultformat = get_config('moodlecourse', 'format')) && $defaultformat !== $name) {
$courses = $DB->get_records('course', array('format' => $name), 'id');
$data = (object)array('id' => null, 'format' => $defaultformat);
foreach ($courses as $record) {
$data->id = $record->id;
update_course($data);
}
}
$DB->delete_records('course_format_options', array('format' => $name));
}
// Specific plugin type cleanup.
lib/pluginlib.php
+95
View File
@@ -3267,6 +3267,39 @@ class plugininfo_block extends plugininfo_base {
return '<p>'.get_string('uninstallextraconfirmblock', 'core_plugin', array('instances'=>$count)).'</p>';
}
/**
* Pre-uninstall hook.
*
* This is intended for disabling of plugin, some DB table purging, etc.
*
* NOTE: to be called from uninstall_plugin() only.
* @private
*/
public function uninstall_cleanup() {
global $DB, $CFG;
if ($block = $DB->get_record('block', array('name'=>$this->name))) {
// Inform block it's about to be deleted
if (file_exists("$CFG->dirroot/blocks/$block->name/block_$block->name.php")) {
$blockobject = block_instance($block->name);
if ($blockobject) {
$blockobject->before_delete(); //only if we can create instance, block might have been already removed
}
}
// First delete instances and related contexts
$instances = $DB->get_records('block_instances', array('blockname' => $block->name));
foreach($instances as $instance) {
blocks_delete_instance($instance);
}
// Delete block
$DB->delete_records('block', array('id'=>$block->id));
}
parent::uninstall_cleanup();
}
}
@@ -3660,6 +3693,43 @@ class plugininfo_enrol extends plugininfo_base {
return $result;
}
/**
* Pre-uninstall hook.
*
* This is intended for disabling of plugin, some DB table purging, etc.
*
* NOTE: to be called from uninstall_plugin() only.
* @private
*/
public function uninstall_cleanup() {
global $DB, $CFG;
// NOTE: this is a bit brute force way - it will not trigger events and hooks properly.
// Nuke all role assignments.
role_unassign_all(array('component'=>'enrol_'.$this->name));
// Purge participants.
$DB->delete_records_select('user_enrolments', "enrolid IN (SELECT id FROM {enrol} WHERE enrol = ?)", array($this->name));
// Purge enrol instances.
$DB->delete_records('enrol', array('enrol'=>$this->name));
// Tweak enrol settings.
if (!empty($CFG->enrol_plugins_enabled)) {
$enabledenrols = explode(',', $CFG->enrol_plugins_enabled);
$enabledenrols = array_unique($enabledenrols);
$enabledenrols = array_flip($enabledenrols);
unset($enabledenrols[$this->name]);
$enabledenrols = array_flip($enabledenrols);
if (is_array($enabledenrols)) {
set_config('enrol_plugins_enabled', implode(',', $enabledenrols));
}
}
parent::uninstall_cleanup();
}
}
@@ -4113,4 +4183,29 @@ class plugininfo_format extends plugininfo_base {
return $message;
}
/**
* Pre-uninstall hook.
*
* This is intended for disabling of plugin, some DB table purging, etc.
*
* NOTE: to be called from uninstall_plugin() only.
* @private
*/
public function uninstall_cleanup() {
global $DB;
if (($defaultformat = get_config('moodlecourse', 'format')) && $defaultformat !== $this->name) {
$courses = $DB->get_records('course', array('format' => $this->name), 'id');
$data = (object)array('id' => null, 'format' => $defaultformat);
foreach ($courses as $record) {
$data->id = $record->id;
update_course($data);
}
}
$DB->delete_records('course_format_options', array('format' => $this->name));
parent::uninstall_cleanup();
}
}