Drupal modules for browsing and managing Fedora-based digital repositories.
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<?php
/**
* @file
* ManagePolicies.inc
*/
/**
* Create form to collection policy management feature
*
* @param array $form
* @param array $form_state
* @param string $collection_pid
* @return type
*/
function islandora_manage_policies_form($form, &$form_state, $collection_pid) {
module_load_include('inc', 'islandora_basic_collection', 'includes/CollectionPolicy');
module_load_include('inc', 'islandora', 'RestConnection');
$rest_connection = new RestConnection();
$content_models = get_content_models_list($collection_pid);
$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');
$collection_object = new FedoraObject($collection_pid, $rest_connection->repository);
$collection_policy_string = $collection_object->getDatastream($collection_policy_dsid);
$supported_collection_models = array();
if ($collection_policy_string) {
$collection_policy = new CollectionPolicy($collection_policy_string->content);
$supported_collection_models = $collection_policy->getContentModels();
}
$collection_namespace = substr($collection_pid, 0, strpos($collection_pid, ":"));
$represented_content_models = get_represented_content_models($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'];
}
}
$new_options = array();
if (is_array($new_content_models) && is_array($current_models_in_policy)) {
$new_options = array_diff_key($new_content_models, $current_models_in_policy);
}
$s = '';
if (count($current_models_in_policy) > 1) {
$s = 's';
}
$form['manage_collection_policy']['titlebox'] = array(
'#type' => 'item',
'#title' => t("Manage collection policy for @collection_pid", array('@collection_pid' => $collection_pid)),
);
$form ['manage_collection_policy']['add']['content_model_to_add'] = array(
'#title' => "Choose content model",
'#type' => 'select',
'#options' => $new_options,
'#description' => t("Choose content model to add to this collection policy."),
);
$form ['manage_collection_policy']['add']['new_cp_namespace'] = array(
'#title' => "Choose namespace",
'#type' => 'textfield',
'#size' => 15,
'#default_value' => $namespace,
'#description' => t("Choose namespace for objects in this collection associated with this content model"),
);
$form['parent_collection'] = array(
'#type' => 'hidden',
'#value' => $collection_pid,
);
$form['collection_pid'] = array(
'#type' => 'hidden',
'#value' => $collection_pid,
);
$form['manage_collection_policy']['add']['submit'] = array(
'#type' => 'submit',
'#value' => t('Add content model to collection policy'),
'#id' => 'add_cm'
);
if (count($current_models_in_policy) > 0) {
$form['manage_collection_policy']['remove'] = array(
'#title' => "Delete content model from collection policy",
'#type' => 'fieldset',
'#collapsible' => TRUE,
'#collapsed' => TRUE,
);
$form ['manage_collection_policy']['remove']['content_models_to_remove'] = array(
'#title' => "Choose content model to remove",
'#type' => 'checkboxes',
'#options' => $current_models_in_policy,
'#description' => t("Choose content models to remove from this collection policy."),
);
$form['manage_collection_policy']['remove']['submit'] = array(
'#type' => 'submit',
'#value' => t('Remove content model@s from collection policy', array('@s' => $s)),
'#id' => 'remove_cm'
);
}
return $form;
}
function islandora_manage_policies_form_validate($form, &$form_state) {
}
/**
* Submit handler for collection policy management form
*
* @param array $form
* @param array $form_state
*/
function islandora_manage_policies_form_submit($form, &$form_state) {
module_load_include('inc', 'islandora', 'RestConnection');
$rest_connection = new RestConnection();
$collection_pid = $form_state['values']['parent_collection'];
$collection_object = new FedoraObject($collection_pid, $rest_connection->repository);
$policy = $collection_object->getDatastream(variable_get('Islandora_Collection_Policy_DSID', 'COLLECTION_POLICY'));
$collection_policy = '<?xml version="1.0" encoding="UTF-8"?>
<collection_policy xmlns="http://www.islandora.ca" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" name="" xsi:schemaLocation="http://www.islandora.ca http://syn.lib.umanitoba.ca/collection_policy.xsd">
<content_models>
<content_model dsid="ISLANDORACM" name="Islandora Collection Model ~ islandora:collectionCModel" namespace="islandora:1" pid="islandora:collectionCModel"/>
</content_models>
<search_terms>
</search_terms>
<staging_area></staging_area>
<relationship>isMemberOfCollection</relationship>
</collection_policy>';
$collection_policy_xml = new DOMDocument();
$collection_policy_xml->loadXML($policy->content);
if ($form_state['clicked_button']['#id'] == 'add_cm') {
if (empty($policy->content)) {
$collection_policy_datastream = $collection_object->constructDatastream('COLLECTION_POLICY', 'X');
$collection_policy_datastream->setContentFromString($collection_policy);
$collection_policy_datastream->label = 'COLLECTION_POLICY';
$collection_object->ingestDatastream($collection_policy_datastream);
$policy = $collection_object->getDatastream(variable_get('Islandora_Collection_Policy_DSID', 'COLLECTION_POLICY'));
}
$cp_namespace = $form_state['values']['new_cp_namespace'];
$cp_content_model = $form_state['values']['content_model_to_add'];
$content_model_object = new FedoraObject($cp_content_model, $rest_connection->repository);
$content_model_datastream = $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', $content_model_object->label);
$content_model_element->setAttribute('dsid', variable_get('Islandora_Content_Model_DSID', 'ISLANDORACM'));
$content_model_element->setAttribute('namespace', $cp_namespace);
$content_model_element->setAttribute('pid', $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);
drupal_set_message(t("Collection model @model successfully added", array('@model' => $content_model_object->label)));
}
//remove content model from collection policy
if ($form_state['clicked_button']['#id'] == 'remove_cm') {
$candidates = $form_state['values']['content_models_to_remove'];
$count = 0;
$s = '';
foreach ($candidates as $candidate) {
if (is_string($candidate)) {
$content_models_element = $collection_policy_xml->getElementsByTagName('content_models');
$models = $content_models_element->item(0)->getElementsByTagName('content_model');
$found = FALSE;
for ($i = 0; $found === FALSE && $i < $models->length; $i++) {
if ($models->item($i)->getAttribute('pid') == $candidate) {
$found = $models->item($i);
}
}
if ($found !== FALSE && $models->length > 0) {
$content_models_element->item(0)->removeChild($found);
$ret = TRUE;
}
$count++;
}
}
if ($count > 0) {
$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);
if ($count > 1) {
$s = 's';
}
drupal_set_message(t("$count collection model@s removed", array('@s' => $s)));
}
}
}