/**
* Implements hook_field_widget_form --> WidgetInterface::formElement().
*
* {@inheritdoc}
*
* Be careful: this widget may be shown in very different places. Test carefully!!
* - On a entity add/edit page
* - On a entity preview page
* - On a entity view page
* - On a entity 'workflow history' tab
* - On a comment display, in the comment history
* - On a comment form, below the comment history
* @todo D8: change "array $items" to "FieldInterface $items"
*/
public function formElement(array $items, $delta, array $element, $langcode, array &$form, array &$form_state)
{
$field_name = $this->field['field_name'];
$field = $this->instance;
$instance = $this->instance;
$entity = $this->entity;
$entity_type = $this->entity_type;
$entity_id = entity_id($entity_type, $entity);
if (!$entity) {
// If no entity given, do not show a form. E.g., on the field settings page.
return $element;
}
// Capture settings to format the form/widget.
$settings_title_as_name = !empty($this->field['settings']['widget']['name_as_title']);
// The schedule cannot be shown on a Content add page.
$settings_schedule = !empty($this->field['settings']['widget']['schedule']) && $entity_id;
$settings_schedule_timezone = !empty($this->field['settings']['widget']['schedule_timezone']);
// Show comment, when both Field and Instance allow this.
$settings_comment = $this->field['settings']['widget']['comment'] ? 'textarea' : 'hidden';
$workflow = Workflow::load($this->field['settings']['wid']);
$current_sid = workflow_node_current_state($entity, $entity_type, $field_name);
$current_state = WorkflowState::load($current_sid);
$options = array();
$options = $current_state->getOptions($entity_type, $entity);
// Determine the default value. If we are in CreationState, use a fast alternative for $workflow->getFirstSid().
$default_value = $current_state->isCreationState() ? key($options) : $current_sid;
// Get the scheduling info. This may change the $current_sid on the Form.
$scheduled = '0';
$timestamp = REQUEST_TIME;
$comment = NULL;
if ($settings_schedule) {
// Read scheduled information.
// Technically you could have more than one scheduled, but this will only add the soonest one.
foreach (WorkflowScheduledTransition::load($entity_type, $entity_id, $field_name) as $scheduled_transition) {
$scheduled = '1';
$current_sid = $scheduled_transition->sid;
$timestamp = $scheduled_transition->scheduled;
$comment = $scheduled_transition->comment;
break;
}
}
// Fetch the form ID. This is unique for each entity, to allow multiple form per page (Views, etc.).
$form_id = $form_state['build_info']['form_id'];
$element_scheduled_name = 'workflow_scheduled_' . $form_id;
$element_options_name = 'workflow_options_' . $form_id;
$element_scheduled_name = 'workflow_scheduled';
$element_options_name = 'workflow_options';
$elt_state_name = 'workflow_scheduled_' . $form_id;
$label = $workflow->label();
// Prepare a wrapper. This might be a fieldset.
$element['workflow']['#type'] = 'container';
$element['workflow']['#attributes'] = array('class' => array('workflow-form-container'));
// Save the current value of the node in the form, for later Workflow-module specific references.
// We add prefix, since #tree == FALSE.
$element['workflow']['workflow_entity'] = array('#type' => 'value', '#value' => $this->entity);
$element['workflow']['workflow_entity_type'] = array('#type' => 'value', '#value' => $this->entity_type);
$element['workflow']['workflow_field'] = array('#type' => 'value', '#value' => $this->field);
$element['workflow']['workflow_instance'] = array('#type' => 'value', '#value' => $this->instance);
// Save the form_id, so the form values can be retrieved in submit function.
$element['workflow']['form_id'] = array('#type' => 'value', '#value' => $form_id);
// First of all, we add the default value in the place were normal fields
// have it. This is to cater for 'preview' of the entity.
$element['#default_value'] = $default_value;
// Decide if we show a widget or a formatter.
// There is no need to a widget when the only choice is the current sid.
if (!$current_state->showWidget($options)) {
$element['workflow'][$element_options_name] = workflow_state_formatter($entity_type, $entity, $field, $instance);
return $element;
} else {
$element['workflow'][$element_options_name] = array('#type' => $this->field['settings']['widget']['options'], '#title' => $settings_title_as_name ? t('Change !name state', array('!name' => $label)) : '', '#options' => $options, '#default_value' => $default_value);
}
// Display scheduling form, but only if entity is being edited and user has
// permission. State change cannot be scheduled at entity creation because
// that leaves the entity in the (creation) state.
if ($settings_schedule == TRUE && user_access('schedule workflow transitions')) {
global $user;
if (variable_get('configurable_timezones', 1) && $user->uid && drupal_strlen($user->timezone)) {
$timezone = $user->timezone;
} else {
$timezone = variable_get('date_default_timezone', 0);
}
$timezones = drupal_map_assoc(timezone_identifiers_list());
$hours = format_date($timestamp, 'custom', 'H:i', $timezone);
// $element['workflow']['workflow_scheduled'] = array(
$element['workflow'][$element_scheduled_name] = array('#type' => 'radios', '#title' => t('Schedule'), '#options' => array('0' => t('Immediately'), '1' => t('Schedule for state change')), '#default_value' => $scheduled, '#attributes' => array('id' => 'scheduled_' . $form_id));
$element['workflow']['workflow_scheduled_date_time'] = array('#type' => 'fieldset', '#title' => t('At'), '#attributes' => array('class' => array('container-inline')), '#prefix' => '<div style="margin-left: 1em;">', '#suffix' => '</div>', '#states' => array('visible' => array(':input[id="' . 'scheduled_' . $form_id . '"]' => array('value' => '1'))));
$element['workflow']['workflow_scheduled_date_time']['workflow_scheduled_date'] = array('#type' => 'date', '#default_value' => array('day' => date('j', $timestamp), 'month' => date('n', $timestamp), 'year' => date('Y', $timestamp)));
$element['workflow']['workflow_scheduled_date_time']['workflow_scheduled_hour'] = array('#type' => 'textfield', '#title' => t('Time'), '#maxlength' => 5, '#size' => 6, '#default_value' => $scheduled ? $hours : '00:00');
$element['workflow']['workflow_scheduled_date_time']['workflow_scheduled_timezone'] = array('#type' => $settings_schedule_timezone ? 'select' : 'hidden', '#title' => t('Time zone'), '#options' => $timezones, '#default_value' => array($timezone => $timezone));
$element['workflow']['workflow_scheduled_date_time']['workflow_scheduled_help'] = array('#type' => 'item', '#prefix' => '<br />', '#description' => t('Please enter a time in 24 hour (eg. HH:MM) format.
If no time is included, the default will be midnight on the specified date.
The current time is: @time.', array('@time' => format_date(REQUEST_TIME, 'custom', 'H:i', $timezone))));
}
$element['workflow']['workflow_comment'] = array('#type' => $settings_comment, '#title' => t('Workflow comment'), '#description' => t('A comment to put in the workflow log.'), '#default_value' => $comment, '#rows' => 2);
// The 'add submit' can explicitely set by workflowfield_field_formatter_view(),
// to add the submit button on the Content view page and the Workflow history tab.
if (!empty($this->instance['widget']['settings']['submit_function'])) {
// Add a submit button, but only on Entity View and History page.
$element['workflow']['submit'] = array('#type' => 'submit', '#value' => t('Update workflow'), '#executes_submit_callback' => TRUE, '#submit' => array($this->instance['widget']['settings']['submit_function']));
}
return $element;
}
/**
* Implements hook_field_delete() -> FieldItemInterface::delete().
*/
public function delete($items)
{
global $user;
$entity_type = $this->entity_type;
$entity = $this->entity;
$entity_id = entity_id($entity_type, $entity);
$field_name = $this->field['field_name'];
// Delete the record in {workflow_node} - not for Workflow Field.
// Use a one-liner for better code analysis when grepping on old code.
!$field_name ? workflow_delete_workflow_node_by_nid($entity_id) : NULL;
// Add a history record in {workflow_node_history}.
// @see drupal.org/node/2165349, comment by Bastlynn:
// The reason for this history log upon delete is because Workflow module
// has historically been used to track node states and accountability in
// business environments where accountability for changes over time is
// *absolutely* required. Think banking and/or particularly strict
// retention policies for legal reasons.
//
// However, a deleted nid may be re-used under certain circumstances:
// e.g., working with InnoDB or after restart the DB server.
// This may cause that old history is associated with a new node.
$old_sid = _workflow_get_sid_by_items($items);
$new_sid = (int) WORKFLOW_DELETION;
$comment = t('Entity deleted.');
$transition = new WorkflowTransition();
$transition->setValues($entity_type, $entity, $field_name, $old_sid, $new_sid, $user->uid, REQUEST_TIME, $comment);
$transition->save();
// Delete all records for this node in {workflow_scheduled_transition}.
foreach (WorkflowScheduledTransition::load($entity_type, $entity_id, $field_name) as $scheduled_transition) {
$scheduled_transition->delete();
}
}
/**
* Execute a transition (change state of a node).
*
* @param bool $force
* If set to TRUE, workflow permissions will be ignored.
*
* @return int
* New state ID. If execution failed, old state ID is returned,
*
* deprecated workflow_execute_transition() --> WorkflowTransition::execute().
*/
public function execute($force = FALSE)
{
$user = $this->getUser();
$old_sid = $this->old_sid;
$new_sid = $this->new_sid;
// Load the entity, if not already loaded.
// This also sets the (empty) $revision_id in Scheduled Transitions.
$entity = $this->getEntity();
// Only after getEntity(), the following are surely set.
$entity_type = $this->entity_type;
$entity_id = $this->entity_id;
$field_name = $this->field_name;
// Make sure $force is set in the transition, too.
if ($force) {
$this->force($force);
}
// Store the transition, so it can be easily fetched later on.
// Store in an array, to prepare for multiple workflow_fields per entity.
// This is a.o. used in hook_entity_update to trigger 'transition post'.
$entity->workflow_transitions[$field_name] = $this;
// Prepare an array of arguments for error messages.
$args = array('%user' => isset($user->name) ? $user->name : '', '%old' => $old_sid, '%new' => $new_sid);
if (!$this->getOldState()) {
drupal_set_message($message = t('You tried to set a Workflow State, but
the entity is not relevant. Please contact your system administrator.'), 'error');
$message = 'Setting a non-relevant Entity from state %old to %new';
$uri = entity_uri($entity_type, $entity);
watchdog('workflow', $message, $args, WATCHDOG_ERROR, l('view', $uri['path']));
return $old_sid;
}
// Check if the state has changed.
$state_changed = $old_sid != $new_sid;
// If so, check the permissions.
if ($state_changed) {
// State has changed. Do some checks upfront.
if (!$force) {
// Make sure this transition is allowed by workflow module Admin UI.
$roles = array_keys($user->roles);
$roles = array_merge(array(WORKFLOW_ROLE_AUTHOR_RID), $roles);
if (!$this->isAllowed($roles, $user, $force)) {
watchdog('workflow', 'User %user not allowed to go from state %old to %new', $args, WATCHDOG_NOTICE);
// If incorrect, quit.
return $old_sid;
}
}
if (!$force) {
// Make sure this transition is allowed by custom module.
// @todo D8: remove, or replace by 'transition pre'. See WorkflowState::getOptions().
// @todo D8: replace all parameters that are included in $transition.
$permitted = module_invoke_all('workflow', 'transition permitted', $old_sid, $new_sid, $entity, $force, $entity_type, $field_name, $this, $user);
// Stop if a module says so.
if (in_array(FALSE, $permitted, TRUE)) {
watchdog('workflow', 'Transition vetoed by module.');
return $old_sid;
}
}
// Make sure this transition is valid and allowed for the current user.
// Invoke a callback indicating a transition is about to occur.
// Modules may veto the transition by returning FALSE.
// (Even if $force is TRUE, but they shouldn't do that.)
$permitted = module_invoke_all('workflow', 'transition pre', $old_sid, $new_sid, $entity, $force, $entity_type, $field_name, $this);
// Stop if a module says so.
if (in_array(FALSE, $permitted, TRUE)) {
watchdog('workflow', 'Transition vetoed by module.');
return $old_sid;
}
} elseif ($this->comment) {
// No need to ask permission for adding comments.
// Since you should not add actions to a 'transition pre' event, there is
// no need to invoke the event.
} else {
// There is no state change, and no comment.
// We may need to clean up something.
}
// The transition is allowed. Let other modules modify the comment.
// @todo D8: remove all but last items from $context.
$context = array('node' => $entity, 'sid' => $new_sid, 'old_sid' => $old_sid, 'uid' => $user->uid, 'transition' => $this);
drupal_alter('workflow_comment', $this->comment, $context);
// Now, change the database.
// Log the new state in {workflow_node}.
if (!$field_name) {
if ($state_changed || $this->comment) {
// If the node does not have an existing 'workflow' property,
// save the $old_sid there, so it can be logged.
if (!isset($entity->workflow)) {
// This is a workflow_node sid.
$entity->workflow = $old_sid;
// This is a workflow_node sid.
}
// Change the state for {workflow_node}.
// The equivalent for Field API is in WorkflowDefaultWidget::submit.
$data = array('nid' => $entity_id, 'sid' => $new_sid, 'uid' => isset($entity->workflow_uid) ? $entity->workflow_uid : $user->uid, 'stamp' => REQUEST_TIME);
workflow_update_workflow_node($data);
$entity->workflow = $new_sid;
// This is a workflow_node sid.
}
} else {
// This is a Workflow Field.
// Until now, adding code here (instead of in workflow_execute_transition() )
// doesn't work, creating an endless loop.
/*
if ($state_changed || $this->comment) {
// Do a separate update to update the field (Workflow Field API)
// This will call hook_field_update() and WorkflowFieldDefaultWidget::submit().
// $entity->{$field_name}[$this->language] = array();
// $entity->{$field_name}[$this->language][0]['workflow']['workflow_sid'] = $new_sid;
// $entity->{$field_name}[$this->language][0]['workflow']['workflow_comment'] = $this->comment;
$entity->{$field_name}[$this->language][0]['transition'] = $this;
// Save the entity, but not through entity_save(),
// since this will check permissions again and trigger rules.
// @TODO: replace below by a workflow_field setter callback.
// The transition was successfully executed, or else a message was raised.
// entity_save($entity_type, $entity);
// or
// field_attach_update($entity_type, $entity);
// Reset the entity cache after update.
entity_get_controller($entity_type)->resetCache(array($entity_id));
$new_sid = workflow_node_current_state($entity, $entity_type, $field_name);
}
*/
}
$this->is_executed = TRUE;
if ($state_changed || $this->comment) {
// Log the transition in {workflow_node_history}.
$this->save();
// Register state change with watchdog.
if ($state_changed) {
$workflow = $this->getWorkflow();
// Get the workflow_settings, unified for workflow_node and workflow_field.
// @todo D8: move settings back to Workflow (like workflownode currently is).
// @todo D8: to move settings back, grep for "workflow->options" and "field['settings']".
$field = _workflow_info_field($field_name, $workflow);
if (($new_state = $this->getNewState()) && !empty($field['settings']['watchdog_log'])) {
$entity_type_info = entity_get_info($entity_type);
$message = $this->isScheduled() ? 'Scheduled state change of @type %label to %state_name executed' : 'State of @type %label set to %state_name';
$args = array('@type' => $entity_type_info['label'], '%label' => entity_label($entity_type, $entity), '%state_name' => check_plain(t($new_state->label())));
$uri = entity_uri($entity_type, $entity);
watchdog('workflow', $message, $args, WATCHDOG_NOTICE, l('view', $uri['path']));
}
}
// Remove any scheduled state transitions.
foreach (WorkflowScheduledTransition::load($entity_type, $entity_id, $field_name) as $scheduled_transition) {
/* @var $scheduled_transition WorkflowScheduledTransition */
$scheduled_transition->delete();
}
// Notify modules that transition has occurred.
// Action triggers should take place in response to this callback, not the 'transaction pre'.
if (!$field_name) {
// Now that workflow data is saved, reset stuff to avoid problems
// when Rules etc want to resave the data.
// Remember, this is only for nodes, and node_save() is not necessarily performed.
unset($entity->workflow_comment);
module_invoke_all('workflow', 'transition post', $old_sid, $new_sid, $entity, $force, $entity_type, $field_name, $this);
entity_get_controller('node')->resetCache(array($entity->nid));
// from entity_load(), node_save();
} else {
// module_invoke_all('workflow', 'transition post', $old_sid, $new_sid, $entity, $force, $entity_type, $field_name, $this);
// We have a problem here with Rules, Trigger, etc. when invoking
// 'transition post': the entity has not been saved, yet. we are still
// IN the transition, not AFTER. Alternatives:
// 1. Save the field here explicitly, using field_attach_save;
// 2. Move the invoke to another place: hook_entity_insert(), hook_entity_update();
// 3. Rely on the entity hooks. This works for Rules, not for Trigger.
// --> We choose option 2:
// - First, $entity->workflow_transitions[] is set for easy re-fetching.
// - Then, post_execute() is invoked via workflowfield_entity_insert(), _update().
}
}
return $new_sid;
}
/**
* Extract WorkflowTransition or WorkflowScheduledTransition from the form.
*
* This merely extracts the transition from the form/widget. No validation.
*/
public function getTransition($old_sid, array $items, $field_name, stdClass $user)
{
$entity_type = $this->entity_type;
$entity = $this->entity;
// $entity_id = entity_id($entity_type, $entity);
$field_name = !empty($this->field) ? $this->field['field_name'] : '';
if (isset($items[0]['transition'])) {
// a complete transition was already passed on.
$transition = $items[0]['transition'];
} else {
// Get the new Transition properties. First the new State ID.
if (isset($items[0]['workflow']['workflow_sid'])) {
// We have shown a workflow form.
$new_sid = $items[0]['workflow']['workflow_sid'];
} elseif (isset($items[0]['value'])) {
// We have shown a core options widget (radios, select).
$new_sid = $items[0]['value'];
} else {
// This may happen if only 1 option is left, and a formatter is shown.
$state = workflow_state_load_single($old_sid);
if (!$state->isCreationState()) {
$new_sid = $old_sid;
} else {
// This only happens on workflows, when only one transition from
// '(creation)' to another state is allowed.
$workflow = $state->getWorkflow();
$new_sid = $workflow->getFirstSid($this->entity_type, $this->entity, $field_name, $user, FALSE);
}
}
$comment = isset($items[0]['workflow']['workflow_comment']) ? $items[0]['workflow']['workflow_comment'] : '';
// Remember, the workflow_scheduled element is not set on 'add' page.
$scheduled = !empty($items[0]['workflow']['workflow_scheduled']);
if (!$scheduled) {
$transition = new WorkflowTransition();
$transition->setValues($entity_type, $entity, $field_name, $old_sid, $new_sid, $user->uid, REQUEST_TIME, $comment);
} else {
// Schedule the time to change the state.
// If Field Form is used, use plain values;
// If Node Form is used, use fieldset 'workflow_scheduled_date_time'.
$schedule = isset($items[0]['workflow']['workflow_scheduled_date_time']) ? $items[0]['workflow']['workflow_scheduled_date_time'] : $items[0]['workflow'];
if (!isset($schedule['workflow_scheduled_hour'])) {
$schedule['workflow_scheduled_hour'] = '00:00';
}
$scheduled_date_time = $schedule['workflow_scheduled_date']['year'] . substr('0' . $schedule['workflow_scheduled_date']['month'], -2, 2) . substr('0' . $schedule['workflow_scheduled_date']['day'], -2, 2) . ' ' . $schedule['workflow_scheduled_hour'] . ' ' . $schedule['workflow_scheduled_timezone'];
if ($stamp = strtotime($scheduled_date_time)) {
$transition = new WorkflowScheduledTransition();
$transition->setValues($entity_type, $entity, $field_name, $old_sid, $new_sid, $user->uid, $stamp, $comment);
} else {
$transition = NULL;
}
}
}
return $transition;
}
/**
* Execute a transition (change state of a node).
* @deprecated: workflow_execute_transition() --> WorkflowTransition::execute().
*
* @param bool $force
* If set to TRUE, workflow permissions will be ignored.
*
* @return int
* new state ID. If execution failed, old state ID is returned,
*/
public function execute($force = FALSE)
{
global $user;
$old_sid = $this->old_sid;
$new_sid = $this->new_sid;
$entity_type = $this->entity_type;
$entity_id = $this->entity_id;
$entity = $this->getEntity();
// Entity may not be loaded, yet.
$field_name = $this->field_name;
if ($old_sid == $new_sid) {
// Stop if not going to a different state.
// Write comment into history though.
if ($this->comment) {
$this->stamp = REQUEST_TIME;
if (!$field_name) {
// @todo D8: remove; this is only for Node API.
$entity->workflow_stamp = REQUEST_TIME;
workflow_update_workflow_node_stamp($entity_id, $this->stamp);
}
$result = module_invoke_all('workflow', 'transition pre', $old_sid, $new_sid, $entity, $force, $entity_type, $field_name);
$this->save();
if (!$field_name) {
// @todo D8: remove; this is only for Node API.
unset($entity->workflow_comment);
// @todo D8: remove; this line is only for Node API.
}
$result = module_invoke_all('workflow', 'transition post', $old_sid, $new_sid, $entity, $force, $entity_type, $field_name);
}
// Clear any references in the scheduled listing.
foreach (WorkflowScheduledTransition::load($entity_type, $entity_id, $field_name) as $scheduled_transition) {
$scheduled_transition->delete();
}
return $new_sid;
}
if (!$force) {
// Make sure this transition is allowed.
$result = module_invoke_all('workflow', 'transition permitted', $old_sid, $new_sid, $entity, $force, $entity_type, $field_name);
// Did anybody veto this choice?
if (in_array(FALSE, $result)) {
// If vetoed, quit.
return $old_sid;
}
}
// Let other modules modify the comment.
// @todo D8: remove all but last items from $context.
$context = array('node' => $entity, 'sid' => $new_sid, 'old_sid' => $old_sid, 'uid' => $this->uid, 'transition' => $this);
drupal_alter('workflow_comment', $this->comment, $context);
$args = array('%user' => $user->name, '%old' => $old_sid, '%new' => $new_sid);
$transition = workflow_get_workflow_transitions_by_sid_target_sid($old_sid, $new_sid);
if (!$transition && !$force) {
watchdog('workflow', 'Attempt to go to nonexistent transition (from %old to %new)', $args, WATCHDOG_ERROR);
return $old_sid;
}
// Make sure this transition is valid and allowed for the current user.
// Check allow-ability of state change if user is not superuser (might be cron).
if ($user->uid != 1 && !$force) {
if (!workflow_transition_allowed($transition->tid, array_merge(array_keys($user->roles), array('author')))) {
watchdog('workflow', 'User %user not allowed to go from state %old to %new', $args, WATCHDOG_NOTICE);
return $old_sid;
}
}
// Invoke a callback indicating a transition is about to occur.
// Modules may veto the transition by returning FALSE.
$result = module_invoke_all('workflow', 'transition pre', $old_sid, $new_sid, $entity, $force, $entity_type, $field_name);
// Stop if a module says so.
if (in_array(FALSE, $result)) {
watchdog('workflow', 'Transition vetoed by module.');
return $old_sid;
}
// Log the new state in {workflow_node_history}.
// This is only valid for Node API.
if (!$field_name) {
// If the node does not have an existing 'workflow' property, save the $old_sid there, so it can be logged.
if (!isset($entity->workflow)) {
$entity->workflow = $old_sid;
}
// Change the state for {workflow_node}.
// The equivalent for Field API is in WorkflowDefaultWidget::submit.
$data = array('nid' => $entity_id, 'sid' => $new_sid, 'uid' => isset($entity->workflow_uid) ? $entity->workflow_uid : $user->uid, 'stamp' => REQUEST_TIME);
workflow_update_workflow_node($data);
$entity->workflow = $new_sid;
}
// Log the transition in {workflow_node_history}.
$this->is_executed = TRUE;
$this->save();
// Register state change with watchdog.
if ($state = WorkflowState::load($new_sid)) {
$workflow = $state->getWorkflow();
if (!empty($workflow->options['watchdog_log'])) {
$entity_type_info = entity_get_info($entity_type);
$message = $this->isScheduled() ? 'Scheduled state change of @type %label to %state_name executed' : 'State of @type %label set to %state_name';
$args = array('@type' => $entity_type_info['label'], '%label' => entity_label($entity_type, $entity), '%state_name' => $state->label());
$uri = entity_uri($entity_type, $entity);
watchdog('workflow', $message, $args, WATCHDOG_NOTICE, l('view', $uri['path']));
}
}
// Notify modules that transition has occurred.
// Action triggers should take place in response to this callback, not the previous one.
module_invoke_all('workflow', 'transition post', $old_sid, $new_sid, $entity, $force, $entity_type, $field_name);
// Clear any references in the scheduled listing.
foreach (WorkflowScheduledTransition::load($entity_type, $entity_id, $field_name) as $scheduled_transition) {
$scheduled_transition->delete();
}
return $new_sid;
}
