function update_script_selection_form($form, &$form_state)
{
$count = 0;
$incompatible_count = 0;
$form['start'] = array('#tree' => TRUE, '#type' => 'fieldset', '#collapsed' => TRUE, '#collapsible' => TRUE);
// Ensure system.module's updates appear first.
$form['start']['system'] = array();
$updates = update_get_update_list();
$starting_updates = array();
$incompatible_updates_exist = FALSE;
foreach ($updates as $module => $update) {
if (!isset($update['start'])) {
$form['start'][$module] = array('#title' => $module, '#item' => $update['warning'], '#prefix' => '<div class="warning">', '#suffix' => '</div>');
$incompatible_updates_exist = TRUE;
continue;
}
if (!empty($update['pending'])) {
$starting_updates[$module] = $update['start'];
$form['start'][$module] = array('#type' => 'hidden', '#value' => $update['start']);
$form['start'][$module . '_updates'] = array('#theme' => 'item_list', '#items' => $update['pending'], '#title' => $module . ' module');
}
if (isset($update['pending'])) {
$count = $count + count($update['pending']);
}
}
// Find and label any incompatible updates.
foreach (update_resolve_dependencies($starting_updates) as $function => $data) {
if (!$data['allowed']) {
$incompatible_updates_exist = TRUE;
$incompatible_count++;
$module_update_key = $data['module'] . '_updates';
if (isset($form['start'][$module_update_key]['#items'][$data['number']])) {
$text = $data['missing_dependencies'] ? 'This update will been skipped due to the following missing dependencies: <em>' . implode(', ', $data['missing_dependencies']) . '</em>' : "This update will be skipped due to an error in the module's code.";
$form['start'][$module_update_key]['#items'][$data['number']] .= '<div class="warning">' . $text . '</div>';
}
// Move the module containing this update to the top of the list.
$form['start'] = array($module_update_key => $form['start'][$module_update_key]) + $form['start'];
}
}
// Warn the user if any updates were incompatible.
if ($incompatible_updates_exist) {
drupal_set_message('Some of the pending updates cannot be applied because their dependencies were not met.', 'warning');
}
if (empty($count)) {
drupal_set_message(t('No pending updates.'));
unset($form);
$form['links'] = array('#markup' => theme('item_list', array('items' => update_helpful_links())));
} else {
$form['help'] = array('#markup' => '<p>The version of Drupal you are updating from has been automatically detected.</p>', '#weight' => -5);
if ($incompatible_count) {
$form['start']['#title'] = format_plural($count, '1 pending update (@number_applied to be applied, @number_incompatible skipped)', '@count pending updates (@number_applied to be applied, @number_incompatible skipped)', array('@number_applied' => $count - $incompatible_count, '@number_incompatible' => $incompatible_count));
} else {
$form['start']['#title'] = format_plural($count, '1 pending update', '@count pending updates');
}
$form['has_js'] = array('#type' => 'hidden', '#default_value' => FALSE);
$form['actions'] = array('#type' => 'actions');
$form['actions']['submit'] = array('#type' => 'submit', '#value' => 'Apply pending updates');
}
return $form;
}
/**
* @return array
*
* @see update_script_selection_form()
*/
private function listUpdates()
{
// [
// 'oxygen' => [
// 'pending' => [
// 7001 => 'Update description.',
// ],
// 'start' => 7001,
// ],
$list = array();
require_once DRUPAL_ROOT . '/includes/install.inc';
drupal_load_updates();
foreach (update_get_update_list() as $extension => $info) {
if (!isset($info['start'])) {
// @todo: The update is incompatible, show a warning?
continue;
}
$list[$extension] = $info['start'];
}
$updates = array();
foreach (update_resolve_dependencies($list) as $update) {
if (!$update['allowed']) {
if ($update['missing_dependencies']) {
// Some module dependency is missing, so it's not safe to update.
continue;
} else {
// There was a PHP syntax error in the module.
continue;
}
}
$updates = array($update['module'] => $update['number']) + $updates;
}
return $updates;
}
function testMissingUpdate()
{
$starting_updates = array('update_test_2' => 8001);
$update_graph = update_resolve_dependencies($starting_updates);
$this->assertTrue($update_graph['update_test_2_update_8001']['allowed'], "The module's first update function is allowed to run, since it does not have any missing dependencies.");
$this->assertFalse($update_graph['update_test_2_update_8002']['allowed'], "The module's second update function is not allowed to run, since it has a direct dependency on a missing update.");
$this->assertFalse($update_graph['update_test_2_update_8003']['allowed'], "The module's third update function is not allowed to run, since it has an indirect dependency on a missing update.");
}
/**
* Test that dependencies between modules are resolved correctly.
*/
function testUpdateOrderingModuleInterdependency()
{
$starting_updates = array('update_test_2' => 8001, 'update_test_3' => 8001);
$update_order = array_keys(update_resolve_dependencies($starting_updates));
// Make sure that each dependency is satisfied.
$first_dependency_satisfied = array_search('update_test_2_update_8001', $update_order) < array_search('update_test_3_update_8001', $update_order);
$this->assertTrue($first_dependency_satisfied, 'The dependency of the second module on the first module is respected by the update function order.');
$second_dependency_satisfied = array_search('update_test_3_update_8001', $update_order) < array_search('update_test_2_update_8002', $update_order);
$this->assertTrue($second_dependency_satisfied, 'The dependency of the first module on the second module is respected by the update function order.');
}
/**
* Starts the database update batch process.
*
* @param \Symfony\Component\HttpFoundation\Request $request
* The current request object.
*/
protected function triggerBatch(Request $request)
{
$maintenance_mode = $this->state->get('system.maintenance_mode', FALSE);
// Store the current maintenance mode status in the session so that it can
// be restored at the end of the batch.
$_SESSION['maintenance_mode'] = $maintenance_mode;
// During the update, always put the site into maintenance mode so that
// in-progress schema changes do not affect visiting users.
if (empty($maintenance_mode)) {
$this->state->set('system.maintenance_mode', TRUE);
}
$operations = array();
// Resolve any update dependencies to determine the actual updates that will
// be run and the order they will be run in.
$start = $this->getModuleUpdates();
$updates = update_resolve_dependencies($start);
// Store the dependencies for each update function in an array which the
// batch API can pass in to the batch operation each time it is called. (We
// do not store the entire update dependency array here because it is
// potentially very large.)
$dependency_map = array();
foreach ($updates as $function => $update) {
$dependency_map[$function] = !empty($update['reverse_paths']) ? array_keys($update['reverse_paths']) : array();
}
// Determine updates to be performed.
foreach ($updates as $function => $update) {
if ($update['allowed']) {
// Set the installed version of each module so updates will start at the
// correct place. (The updates are already sorted, so we can simply base
// this on the first one we come across in the above foreach loop.)
if (isset($start[$update['module']])) {
drupal_set_installed_schema_version($update['module'], $update['number'] - 1);
unset($start[$update['module']]);
}
$operations[] = array('update_do_one', array($update['module'], $update['number'], $dependency_map[$function]));
}
}
$post_updates = $this->postUpdateRegistry->getPendingUpdateFunctions();
if ($post_updates) {
// Now we rebuild all caches and after that execute the hook_post_update()
// functions.
$operations[] = ['drupal_flush_all_caches', []];
foreach ($post_updates as $function) {
$operations[] = ['update_invoke_post_update', [$function]];
}
}
$batch['operations'] = $operations;
$batch += array('title' => $this->t('Updating'), 'init_message' => $this->t('Starting updates'), 'error_message' => $this->t('An unrecoverable error has occurred. You can find the error message below. It is advised to copy it to the clipboard for reference.'), 'finished' => array('\\Drupal\\system\\Controller\\DbUpdateController', 'batchFinished'));
batch_set($batch);
// @todo Revisit once https://www.drupal.org/node/2548095 is in.
return batch_process(Url::fromUri('base://results'), Url::fromUri('base://start'));
}
/**
* Starts the database update batch process.
*
* @param \Symfony\Component\HttpFoundation\Request $request
* The current request object.
*/
protected function triggerBatch(Request $request)
{
// During the update, bring the site offline so that schema changes do not
// affect visiting users.
$maintenance_mode = $this->config('system.maintenance')->get('enabled');
if (isset($maintenance_mode)) {
$_SESSION['maintenance_mode'] = $maintenance_mode;
}
if (empty($_SESSION['maintenance_mode'])) {
$this->state->set('system.maintenance_mode', TRUE);
}
$operations = array();
// First of all perform entity definition updates, which will update
// storage schema if needed, so that module update functions work with
// the correct entity schema.
if ($this->entityDefinitionUpdateManager->needsUpdates()) {
$operations[] = array('update_entity_definitions', array('system', '0 - Update entity definitions'));
}
// Resolve any update dependencies to determine the actual updates that will
// be run and the order they will be run in.
$start = $this->getModuleUpdates();
$updates = update_resolve_dependencies($start);
// Store the dependencies for each update function in an array which the
// batch API can pass in to the batch operation each time it is called. (We
// do not store the entire update dependency array here because it is
// potentially very large.)
$dependency_map = array();
foreach ($updates as $function => $update) {
$dependency_map[$function] = !empty($update['reverse_paths']) ? array_keys($update['reverse_paths']) : array();
}
// Determine updates to be performed.
foreach ($updates as $update) {
if ($update['allowed']) {
// Set the installed version of each module so updates will start at the
// correct place. (The updates are already sorted, so we can simply base
// this on the first one we come across in the above foreach loop.)
if (isset($start[$update['module']])) {
drupal_set_installed_schema_version($update['module'], $update['number'] - 1);
unset($start[$update['module']]);
}
// Add this update function to the batch.
$function = $update['module'] . '_update_' . $update['number'];
$operations[] = array('update_do_one', array($update['module'], $update['number'], $dependency_map[$function]));
}
}
$batch['operations'] = $operations;
$batch += array('title' => $this->t('Updating'), 'init_message' => $this->t('Starting updates'), 'error_message' => $this->t('An unrecoverable error has occurred. You can find the error message below. It is advised to copy it to the clipboard for reference.'), 'finished' => array('\\Drupal\\system\\Controller\\DbUpdateController', 'batchFinished'));
batch_set($batch);
return batch_process('update.php/results', Url::fromRoute('system.db_update', array('op' => 'start')));
}
/**
* Starts the database update batch process.
*
* @param \Symfony\Component\HttpFoundation\Request $request
* The current request object.
*/
protected function triggerBatch(Request $request)
{
$maintenance_mode = $this->state->get('system.maintenance_mode', FALSE);
// Store the current maintenance mode status in the session so that it can
// be restored at the end of the batch.
$_SESSION['maintenance_mode'] = $maintenance_mode;
// During the update, always put the site into maintenance mode so that
// in-progress schema changes do not affect visiting users.
if (empty($maintenance_mode)) {
$this->state->set('system.maintenance_mode', TRUE);
}
$operations = array();
// Resolve any update dependencies to determine the actual updates that will
// be run and the order they will be run in.
$start = $this->getModuleUpdates();
$updates = update_resolve_dependencies($start);
// Store the dependencies for each update function in an array which the
// batch API can pass in to the batch operation each time it is called. (We
// do not store the entire update dependency array here because it is
// potentially very large.)
$dependency_map = array();
foreach ($updates as $function => $update) {
$dependency_map[$function] = !empty($update['reverse_paths']) ? array_keys($update['reverse_paths']) : array();
}
// Determine updates to be performed.
foreach ($updates as $function => $update) {
if ($update['allowed']) {
// Set the installed version of each module so updates will start at the
// correct place. (The updates are already sorted, so we can simply base
// this on the first one we come across in the above foreach loop.)
if (isset($start[$update['module']])) {
drupal_set_installed_schema_version($update['module'], $update['number'] - 1);
unset($start[$update['module']]);
}
$operations[] = array('update_do_one', array($update['module'], $update['number'], $dependency_map[$function]));
}
}
// Lastly, perform entity definition updates, which will update storage
// schema if needed. If module update functions need to work with specific
// entity schema they should call the entity update service for the specific
// update themselves.
// @see \Drupal\Core\Entity\EntityDefinitionUpdateManagerInterface::applyEntityUpdate()
// @see \Drupal\Core\Entity\EntityDefinitionUpdateManagerInterface::applyFieldUpdate()
if ($this->entityDefinitionUpdateManager->needsUpdates()) {
$operations[] = array('update_entity_definitions', array());
}
$batch['operations'] = $operations;
$batch += array('title' => $this->t('Updating'), 'init_message' => $this->t('Starting updates'), 'error_message' => $this->t('An unrecoverable error has occurred. You can find the error message below. It is advised to copy it to the clipboard for reference.'), 'finished' => array('\\Drupal\\system\\Controller\\DbUpdateController', 'batchFinished'));
batch_set($batch);
return batch_process(Url::fromUri($request->getUriForPath('/results')), Url::fromUri($request->getUriForPath('/start')));
}
