Drupal modules for browsing and managing Fedora-based digital repositories.
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<?php
/**
* @file
* DeleteCollection.inc
*/
/**
*
* @param array $form_state
* @param string $pid
*
* @return string
*/
function islandora_collection_deletion_form($form, &$form_state, $object) {
module_load_include('inc', 'islandora_basic_collection', 'collection_manager_table');
$pid = $object->id;
$potential_collections = get_collections_as_option_array();
$table = islandora_collection_table($object);
$deletion_message = ($table) ? "Delete Members of this Collection" : "Delete Collection";
$submit_text_message = ($table) ? "Delete selected objects" : "Delete collection";
$form = array();
$form['collection_delete']['titlebox'] = array(
'#type' => 'item',
'#title' => t("Delete objects from @collection_pid", array('@collection_pid' => $pid)),
);
if ($table) {
$form['collection_delete']['table'] = array(
'table' => $table,
);
}
else {
$form['collection_delete']['delete_root'] = array(
'#type' => 'checkbox',
'#title' => "Remove this empty collection?",
'#id' => 'delete_collection',
);
}
$form['current'] = array(
'#type' => 'hidden',
'#value' => $pid,
);
$form['collection_delete']['message'] = array(
'#type' => 'item',
'#value' => t("This action is permanant and cannot be undone."),
);
$form['collection_delete']['submit'] = array(
'#type' => 'submit',
'#description' => t("This action is permanant and cannot be undone."),
'#value' => t('@message', array('@message' => $submit_text_message)),
);
return $form;
}
/**
* Submit handler for object deletion form in the collection manager.
*
* @global type $user
* @param array $form
* @param array $form_state
*/
function islandora_collection_deletion_form_submit($form, &$form_state) {
$collection_pid = $form_state['values']['current'];
$fedora_object = islandora_object_load($collection_pid);
$parents = $fedora_object->relationships->get(NULL, 'isMemberOfCollection');
$parents = islandora_collections_get_collection_from_pid($fedora_object);
$collection_pid = $form_state['values']['current'];
if (isset($form_state['values']['delete_root']) && $form_state['values']['delete_root'] == 1) {
delete_root_collection($fedora_object);
drupal_goto("islandora/object/" . $parents[0]['parent']['value']);
}
$child_collections = get_child_collections($fedora_object);
$populated_child_collections = array();
$pids = @array_filter($form_state['values']['table']);
if (!empty($child_collections)) {
foreach ($child_collections as $child) {
$child_pids = get_related_items_as_array(islandora_object_load($child['object']['value']), 'isMemberOfCollection');
if (!empty($child_pids)) {
$populated_child_collections[] = $child;
}
}
}
if (!empty($populated_child_collections)) {
$conflict = FALSE;
foreach ($populated_child_collections as $collection) {
if (in_array($collection, $pids)) {
$conflict = TRUE;
drupal_set_message(t("Populated child collections were not deleted."));
}
}
}
$pids_to_delete = array_diff($pids, $populated_child_collections);
foreach ($pids_to_delete as $pid_to_delete) {
$fedora_object->repository->purgeObject($pid_to_delete);
}
drupal_goto("islandora/object/" . $collection_pid);
}
/**
* Deletes the collection object
*
* @param string $pid
*/
function delete_root_collection($object) {
$pid = $object->id;
try {
$object->repository->purgeObject($object->id);
} catch (RepositoryException $e) {
drupal_set_message(t("Collection '@pid' could not be deleted!", array('@pid' => $pid)), 'error');
return;
}
drupal_set_message(t("Collection '@pid' deleted.", array('@pid' => $pid)));
}