$datastream->id)),
"islandora/object/{$datastream->parent->id}/manage/datastreams",
t('This will create a new version of the datastream. Please wait while this happens.'),
t('Regenerate'),
t('Cancel')
);
}
/**
* Submit handler for the regenerate datastream derivative form.
*
* @param array $form
* The Drupal form.
* @param array $form_state
* The Drupal form state.
*/
function islandora_regenerate_datastream_derivative_form_submit(array $form, array &$form_state) {
module_load_include('inc', 'islandora', 'includes/derivatives');
$datastream = $form_state['datastream'];
$batch = islandora_regenerate_datastream_derivative_batch($datastream);
batch_set($batch);
$form_state['redirect'] = "islandora/object/{$datastream->parent->id}/manage/datastreams";
}
/**
* Regenerate all derivatives on an object.
*
* @param array $form
* The Drupal form.
* @param array $form_state
* The Drupal form state.
* @param AbstractObject $object
* The object that is having its derivatives regenerated.
*
* @return array
* The Drupal form definition.
*/
function islandora_regenerate_object_derivatives_form(array $form, array &$form_state, AbstractObject $object) {
$form_state['object'] = $object;
return confirm_form($form,
t('Are you sure you want to regenerate all the derivatives for %title?', array('%title' => $object->label)),
"islandora/object/{$object}/manage/properties",
t('This will create a new version for every datastream on the object. Please wait while this happens.'),
t('Regenerate'),
t('Cancel')
);
}
/**
* Submit handler for the regenerate object derivativse form.
*
* @param array $form
* The Drupal form.
* @param array $form_state
* The Drupal form state.
*/
function islandora_regenerate_object_derivatives_form_submit(array $form, array &$form_state) {
module_load_include('inc', 'islandora', 'includes/derivatives');
$object = $form_state['object'];
$batch = islandora_regenerate_object_derivatives_batch($object);
batch_set($batch);
$form_state['redirect'] = "islandora/object/{$object}/manage/properties";
}
/**
* Creates a batch to go out and re-create all of the derivatives for an object.
*
* @param AbstractObject $object
* A AbstractObject representing an object within Fedora.
*
* @return array
* An array specifying the Drupal batch.
*/
function islandora_regenerate_object_derivatives_batch(AbstractObject $object) {
return array(
'title' => t('Regenerating all derivatives for @label', array('@label' => $object->label)),
'operations' => islandora_do_batch_derivatives($object, array('force' => TRUE)),
'init_message' => t('Preparing to regenerate derivatives...'),
'progress_message' => t('Time elapsed: @elapsed
Estimated time remaning @estimate.'),
'error_message' => t('An error has occurred.'),
'file' => drupal_get_path('module', 'islandora') . '/includes/regenerate_derivatives.form.inc',
'finished' => 'islandora_regenerate_derivative_batch_finished',
);
}
/**
* Creates a batch to go out and re-create the derivative for a datastream.
*
* @param AbstractDatastream $datastream
* A AbstractDatastream representing a datastream on an object within Fedora.
*
* @return array
* An array specifying the Drupal batch.
*/
function islandora_regenerate_datastream_derivative_batch(AbstractDatastream $datastream) {
return array(
'title' => t('Regenerating derivatives for the @dsid datastream', array('@dsid' => $datastream->id)),
'operations' => islandora_do_batch_derivatives($datastream->parent, array(
'force' => TRUE,
'destination_dsid' => $datastream->id,
)),
'init_message' => t('Preparing to regenerate derivatives...'),
'progress_message' => t('Time elapsed: @elapsed
Estimated time remaning @estimate.'),
'error_message' => t('An error has occurred.'),
'file' => drupal_get_path('module', 'islandora') . '/includes/regenerate_derivatives.form.inc',
'finished' => 'islandora_regenerate_derivative_batch_finished',
);
}
/**
* Wrapper to call out to batch operations.
*
* @param string $function
* The name of the function we are calling for derivatives.
* @param bool|string $file
* FALSE if there is no file to load, the path to require otherwise
* @param string $pid
* The pid of the object we are performing.
* @param bool $force
* Whether we are forcing derivative regeneration or not.
* @param array $context
* The context of the current batch operation.
*/
function islandora_derivative_perform_batch_operation($function, $file, $pid, $force, &$context) {
if ($file) {
require_once $file;
}
if (function_exists($function)) {
$logging = call_user_func($function, islandora_object_load($pid), $force);
if (!empty($logging)) {
$context['results']['logging'][] = $logging;
}
}
else {
watchdog('islandora', 'Unable to call derivative function @function as it was not found!', array('@function' => $function), WATCHDOG_ERROR);
}
}
/**
* Finished function for derivative batch regeneration.
*
* @param array $success
* An array of success passed from the batch.
* @param array $results
* An array of results passed from the batch.
* @param array $operations
* An array of operations passed from the batch.
*/
function islandora_regenerate_derivative_batch_finished($success, $results, $operations) {
module_load_include('inc', 'islandora', 'includes/derivatives');
if (!empty($results['logging'])) {
islandora_derivative_logging($results['logging']);
}
}