Drupal modules for browsing and managing Fedora-based digital repositories.
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<?php
/**
* @file
* ChangeContentModels.inc
*/
function islandora_change_content_models_form($form, &$form_state, $collection_object) {
module_load_include('inc', 'islandora_basic_collection', 'includes/CollectionPolicy');
$collection_pid = $collection_object->id;
$content_models = get_content_models_list($collection_object);
$cm_options = array();
$name_mappings = array();
foreach ($content_models as $content_model) {
if ($content_model != "islandora:collectionCModel") {
$item = new FedoraObject($content_model, $rest_connection->repository);
$cm_name = $item->Label;
$cm_options[$content_model] = $cm_name;
}
}
$namespace = substr($collection_pid, 0, strpos($collection_pid, ":"));
$collection_policy_dsid = variable_get('Islandora_Collection_Policy_DSID', 'COLLECTION_POLICY');
$collection_policy_datastream = $collection_object->getDatastream($collection_policy_dsid);
$supported_collection_models = array();
if ($collection_policy_datastream && $collection_policy_datastream->content) {
$collection_policy = new CollectionPolicy($collection_policy_datastream->content);
$supported_collection_models = $collection_policy->getContentModels();
}
$collection_namespace = substr($collection_pid, 0, strpos($collection_pid, ":"));
$collection_name = $collection_object->label;
$new_content_models = get_content_models_as_option_array();
$current_models_in_policy = array();
if ($supported_collection_models) {
foreach ($supported_collection_models as $supported_model) {
$current_models_in_policy[$supported_model['pid']] = $supported_model['pid'];
}
}
$form['change_cmodel']['titlebox'] = array(
'#type' => 'item',
'#title' => t("Change content models within @collection_name", array('@collection_name' => $collection_object->label)),
);
$form['change_cmodel']['current_content_model'] = array(
'#title' => "Choose content model to be changed",
'#type' => 'select',
'#options' => $current_models_in_policy,
'#description' => t("All objects in this collection with the selected content model will be changed."),
);
$form['change_cmodel']['new_content_model'] = array(
'#title' => "Choose new content model",
'#type' => 'select',
'#options' => $new_content_models,
'#description' => t("The new content model to be assigned to selected objects."),
);
$form['change_cmodel']['collection_pid'] = array(
'#type' => 'hidden',
'#value' => $collection_pid,
);
$form['change_cmodel']['submit'] = array(
'#type' => 'submit',
'#value' => t('Change content model associations'),
'#id' => 'change_model',
);
return $form;
}
function islandora_change_content_models_form_validate($form, &$form_state) {
}
function islandora_change_content_models_form_submit($form, &$form_state) {
module_load_include('inc', 'islandora_basic_collection', 'includes/CollectionPolicy');
$current_content_model = $form_state['values']['current_content_model'];
$new_content_model = $form_state['values']['new_content_model'];
$collection_pid = $form_state['values']['collection_pid'];
$current_content_model_object = islandora_object_load($current_content_model);
$collection_object = islandora_object_load($form_state['values']['collection_pid']);
$collection_policy_datastream = $collection_object->getDatastream(variable_get('Islandora_Collection_Policy_DSID', 'COLLECTION_POLICY'));
$policy = new CollectionPolicy($collection_policy_datastream->content);
$collection_policy_xml = new DOMDocument();
$collection_policy_xml->loadXML($collection_policy_datastream->content);
$add_to_policy = TRUE;
$policy_content_models = $policy->getContentModels();
foreach ($policy_content_models as $policy_content_model) {
if ($policy_content_model['pid'] == $current_content_model) {
$namespace = $policy_content_model['namespace'];
}
if ($policy_content_model['pid'] == $new_content_model) {
$add_to_policy = FALSE;
}
}
if ($add_to_policy) {
$new_content_model_object = islandora_object_load($new_content_model);
$new_content_model_datastream = $new_content_model_object->getDatastream(variable_get('Islandora_Content_Model_DSID', 'ISLANDORACM'));
$content_models_element = $collection_policy_xml->getElementsByTagName('content_models');
$content_model_element = $content_models_element->item(0)->getElementsByTagName('content_model');
$content_model_element = $collection_policy_xml->createElement('content_model');
$content_model_element->setAttribute('name', $new_content_model_object->label);
$content_model_element->setAttribute('dsid', variable_get('Islandora_Content_Model_DSID', 'ISLANDORACM'));
$content_model_element->setAttribute('namespace', $namespace);
$content_model_element->setAttribute('pid', $new_content_model_object->id);
$content_models_element->item(0)->appendChild($content_model_element);
$new_collection_policy_datastream = $collection_object->getDatastream('COLLECTION_POLICY');
$new_collection_policy_datastream->setContentFromString($collection_policy_xml->saveXML());
$new_collection_policy_datastream->label = 'COLLECTION_POLICY';
$collection_object->ingestDatastream($new_collection_policy_datastream);
}
$query = "select \$object from <#ri>
where (\$object <info:fedora/fedora-system:def/model#hasModel> <info:fedora/$current_content_model>
and (\$object <info:fedora/fedora-system:def/relations-external#isMemberOfCollection> <info:fedora/$collection_pid>
or \$object <info:fedora/fedora-system:def/relations-external#isMemberOf> <info:fedora/$collection_pid>)
and \$object <fedora-model:state> <info:fedora/fedora-system:def/model#Active>)";
$objects = $collection_object->repository->ri->itqlQuery($query, 'unlimited', '0');
$count = 0;
foreach ($objects as $object) {
if (!$object['object']['value']) {
continue;
}
$fedora_item = islandora_object_load($object['object']['value']);
$fedora_item->relationships->remove(FEDORA_MODEL_URI, 'hasModel', $current_content_model);
$fedora_item->relationships->add(FEDORA_MODEL_URI, 'hasModel', $new_content_model);
$count++;
}
drupal_set_message(t('@current_content_model changed to @new_content_model on @count objects', array('@current_content_model' => $current_content_model, '@new_content_model' => $new_content_model, '@count' => $count)));
}