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scholar.inc
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<?php
/**
* Provides the functions to process and view scholarly citations.
*
* @file
* @author Richard Wincewicz
*/
class Scholar {
function __construct($pid = '') {
module_load_include('inc', 'fedora_repository', 'api/fedora_item');
if (!empty($pid)) {
$this->pid = $pid;
$this->item = new Fedora_Item($pid);
}
}
/**
* Build up the elements to show a basic citation. This currently
* calls another function but customisation can be added in
*
* @return array
*/
function showCitation() {
$pid = $this->pid;
$tabset = islandora_scholar_build_citation($pid, 'citation');
return $tabset;
}
/**
* Build up the elements to show a thesis. This uses the citation build function
* as well as adding in some extra customisation such as the signature datastream
*
* @return array
*/
function showThesis() {
$pid = $this->pid;
$item = new Fedora_Item($pid);
$datastream_array = $item->get_datastreams_list_as_array();
$tabset = islandora_scholar_build_citation($pid, 'thesis');
if (user_access('view signature tab')) {
if (array_key_exists('SIGNATURE', $datastream_array)) {
$tabset['first_tab']['tabs']['signature'] = array(
'#type' => 'tabpage',
'#title' => t('Signature'),
'#content' => drupal_get_form('islandora_scholar_signature_delete_form', $pid),
'#weight' => 4,
);
}
else {
$tabset['first_tab']['tabs']['signature'] = array(
'#type' => 'tabpage',
'#title' => t('Signature'),
'#content' => drupal_get_form('islandora_scholar_signature_form', $pid),
'#weight' => 4,
);
}
}
return $tabset;
}
/**
* This will build the view for a researcher object
* @global type $base_url
* @global type $base_path
* @global type $user
* @return type
*/
function show_researcher() {
global $base_url;
global $base_path;
global $user;
module_load_include('inc', 'fedora_repository', 'api/fedora_item');
module_load_include('inc', 'scholar_tracking', 'scholar_tracking');
module_load_include('inc', 'scholar', 'Users');
$path = drupal_get_path('module', 'scholar');
drupal_add_css($path . '/css/scholar.css');
$solr_location = variable_get('islandora_solr_search_block_url', 'localhost:8080/solr');
$collectionHelper = new CollectionClass();
$xmlstr = $collectionHelper->getStream($this->pid, "MADS");
if ($xmlstr != NULL) {
$xml = new SimpleXMLElement($xmlstr);
$names = $xml->authority->name->namePart;
$fullname = $names[0] . ' ' . $names[1];
$research_block = "";
foreach ($xml->xpath('//mads:fieldOfActivity') as $ri) {
if (!empty($ri)) {
$research_block .= "<li>$ri</li>";
}
}
foreach ($xml->affiliation->organization as $dept) {
$depts[] = str_replace('_', ' ', (string) $dept);
}
$phone = $xml->affiliation->phone;
$phone = trim($phone);
$building = $xml->xpath('//mads:note[@type="address"]');
$building = (string) $building[0];
$website = l($xml->url, $xml->url);
$department_array = $depts;
if (is_array($depts)) {
$dept = implode(', ', array_unique($depts));
}
else {
$dept = $depts;
}
$position = $xml->affiliation->position;
$positions = array(
'EmeritusFaculty' => 'Emeritus Faculty',
'EmeritusLibrarian' => 'Emeritus Librarian'
,
'EmeritusProfessor' => 'Emeritus Professor',
'FacultyMember' => 'Faculty Member'
,
'NonAcademic' => 'Non-Academic',
'GraduateStudent' => 'Graduate Student'
,
'UndergraduateStudent' => 'Undergraduate Student'
);
$from = array_keys($positions);
$to = array_values($positions);
$position = str_replace($from, $to, $position);
$username = $xml->identifier;
$email = $xml->affiliation->email;
$notes = $xml->xpath('//mads:note[@type="history"]');
$biography = "";
foreach ($notes as $note) {
$tmp_biography .= "<br />$note";
}
global $user;
//suppress blank conntent for anonymous users but leave
//the blank region for logged in users so they can see they are missing
//content
if (empty($tmp_biography) && $user->uid == 0) {
$biography = '';
}
else {
$biography = 'Biography<br />' . $tmp_biography;
}
}
else {
drupal_set_message(t('No MADS datastream found!'), 'warning');
}
//RECENT CITATIONS
$solr_url = 'http://' . $solr_location . '/select?q=rels.hasModel:citation%20AND%20mods.username:"' . $username . '"&sort=mods_date_issued_dt+desc&fl=PID,mods_title_sv&rows=5';
$query = file_get_contents($solr_url);
$recent_citations = '';
$solr_xml = new SimpleXMLElement($query);
$solr_array = $solr_xml->xpath('//doc');
//$solr_array = array_filter($solr_array);
foreach ($solr_array as $arr) {
$pid = (string) $arr->str[0];
$title = (string) $arr->str[1];
$title_link = l($title, "$base_url/fedora/repository/$pid");
$recent_citations .= '<li>' . $title_link . '</li>';
}
//FIND SCHOLARS in DEPARTMENT
$department_list = array();
foreach ($department_array as $dpt) {
$solr_url = 'http://' . $solr_location . '/select?q=rels.hasModel:info\:fedora/islandora\:researcherCModel%20AND%20mads.organization:"' . urlencode($dpt) . '"&fl=PID,mads.title,title&rows=1000';
$query = file_get_contents($solr_url);
$solr_xml = new SimpleXMLElement($query);
$solr_array = $solr_xml->xpath('//doc');
$name_list = "";
foreach ($solr_array as $arr) {
$pid = (string) $arr->str;
$name = (string) $arr->arr->str[0];
if ($fullname != $name) {
$name_link = l($name, "$base_url/fedora/repository/$pid");
$name_list .= '<li>' . $name_link . '</li>';
}
}
$department_list[$dpt] = $name_list;
}
//GRANT INOFORMATION
//bit of a mismash of field names using existing fields where possible
//so we don't have to reindex yet
$solr_url = 'http://' . $solr_location . '/select?q=rels.hasModel:info\:fedora/islandora\:grantCModel%20AND%20mods_grantUser:"' . $username . '"&fl=PID,mods.title,mods.topic,mods.username';
$query = file_get_contents($solr_url);
$grant_info = '';
$solr_xml = new SimpleXMLElement($query);
$solr_array = $solr_xml->xpath('//doc');
//$solr_array = array_filter($solr_array);
foreach ($solr_array as $arr) {
$pid = (string) $arr->str;
$title = (string) $arr->arr[0]->str;
$agency = (string) $arr->arr[1]->str;
$type = (string) $arr->arr[2]->str;
$grant_info .= $title;
$grant_info .= '<ul>';
$grant_info .= '<li>' . $agency . '</li>';
$grant_info .= '<li>' . $type . '</li>';
$grant_info .= '</ul>';
}
$tabset['first_tab'] = array(
'#type' => 'tabpage',
'#title' => t('Description'),
);
$tabset['first_tab']['tabs'] = array(
'#type' => 'tabset',
);
$tabset['first_tab']['tabs']['details'] = array(
'#type' => 'tabpage',
'#title' => t('Details'),
'#weight' => 0,
);
$rss_feed = '<div class="scholar-rss-feed-label">' . l('<img src="' . $base_url . '/' . $path . '/images/feed-icon-28x28.png">', 'rss/' . $username, array('html' => TRUE)) .
' Subscribe to ' . $fullname . '\'s citation feed</div>';
$profile_header = array();
$profile_rows = array();
if (!empty($fullname) || $user->uid > 0) {
$profile_rows[] = array(
'data' => array(
'Name',
array('data' => $fullname)
),
'class' => 'profile-row'
);
}
if (!empty($position) || $user->uid > 0) {
$profile_rows[] = array(
'data' => array(
'Position',
array('data' => $position)
),
'class' => 'profile-row'
);
}
if (!empty($email) || $user->uid > 0) {
$profile_rows[] = array(
'data' => array('Email', array('data' => $email)),
'class' => 'profile-row'
);
}
if (!empty($dept) || $user->uid > 0) {
$profile_rows[] = array(
'data' => array(
'Department(s)',
array('data' => $dept)
),
'class' => 'profile-row'
);
}
if (!empty($phone) || $user->uid > 0) {
$profile_rows[] = array(
'data' => array('Phone', array('data' => $phone)),
'class' => 'profile-row'
);
}
if (!empty($building) || $user->uid > 0) {
$profile_rows[] = array(
'data' => array(
'Building',
array('data' => $building)
),
'class' => 'profile-row'
);
}
if (!empty($website) || $user->uid > 0) {
$profile_rows[] = array(
'data' => array(
'Website',
array('data' => $website)
),
'class' => 'profile-row'
);
}
$middle_content = "<h3>$fullname</h3>$biography";
$variables['department_list'] = $department_list;
$variables['middle_content'] = $middle_content;
$variables['profile_rows'] = $profile_rows;
$variables['profile_header'] = $profile_header;
$variables['pid'] = $this->pid;
$variables['research_block'] = $research_block;
$variables['rss_feed'] = $rss_feed;
$variables['recent_citations'] = $recent_citations;
$variables['grant_info'] = $grant_info;
if (isset($this->item->datastreams['TN'])) {
$variables['tn_src'] = '<img src="' . $base_url . '/fedora/repository/' . $this->pid . '/TN"/>';
}
else {
$variables['tn_src'] = "";
}
$content = theme('scholar_profile', $variables);
$tabset['first_tab']['tabs']['details']['content'] = array(
'#value' => $content,
);
$tabset['first_tab']['tabs']['citations'] = array(
'#type' => 'tabpage',
'#title' => t('Citations'),
'#weight' => 1,
);
$pids = array();
$tabset['first_tab']['tabs']['citations']['table'] = array(
'#value' => drupal_get_form('scholar_author_bibliography_form', $username, $username, 'author-citations', $this->pid),
);
$tabset['first_tab']['tabs']['theses'] = array(
'#type' => 'tabpage',
'#title' => t('Theses'),
'#weight' => 2,
);
$tabset['first_tab']['tabs']['theses']['table'] = array(
'#value' => drupal_get_form('scholar_author_bibliography_form', $username, $username, 'author-theses', $this->pid),
);
$tabset['first_tab']['tabs']['metrics'] = array(
'#type' => 'tabpage',
'#title' => t('Metrics'),
'#weight' => 3,
);
$tabset['first_tab']['tabs']['metrics']['content'] = array(
'#value' => scholar_object_metrics_form($username, 'author'),
'#prefix' => '<div class="scholar_metrics_table">',
'#suffix' => '</div>',
);
drupal_set_title($fullname);
return $tabset;
}
/**
* This will build the view for a department object
* @global type $base_url
* @global type $base_path
* @global type $user
* @return type
*/
function show_department() {
global $base_url;
global $base_path;
global $user;
module_load_include('inc', 'fedora_repository', 'api/fedora_item');
module_load_include('inc', 'scholar_tracking', 'scholar_tracking');
module_load_include('inc', 'scholar', 'Users');
$path = drupal_get_path('module', 'scholar');
drupal_add_css($path . '/css/scholar.css');
$tabset['first_tab'] = array(
'#type' => 'tabpage',
'#title' => t('Description'),
);
$tabset['first_tab']['tabs'] = array(
'#type' => 'tabset',
);
$tabset['first_tab']['tabs']['details'] = array(
'#type' => 'tabpage',
'#title' => t('Details'),
'#weight' => 0,
);
$tabset['first_tab']['tabs']['details']['tn'] = array(
'#value' => '<img src="' . $base_url . '/' . $path . '/images/gnome_stock_person.png"/>',
);
$collectionHelper = new CollectionClass();
$xmlstr = $collectionHelper->getStream($this->pid, "MADS");
if ($xmlstr != NULL) {
$xml = new SimpleXMLElement($xmlstr);
$names = $xml->authority->name->namePart;
$date = $xml->authority->name->namePart[1];
$faculty = $xml->related->name->namePart;
$note = $xml->note;
$url = $xml->url;
$header = array();
$rows = array(
array('Name', $names),
array('Date', $date),
array('Parent school/faculty', $faculty),
array('Historical note', $note),
array('URL', $url),
);
$tabset['first_tab']['tabs']['details']['table'] = array(
'#value' => theme('table', $header, $rows),
);
}
else {
$tabset['first_tab']['tabs']['details']['table'] = array(
'#value' => t('No MADS datastream found!'),
);
}
$tabset['first_tab']['tabs']['citations'] = array(
'#type' => 'tabpage',
'#title' => t('Citations'),
'#weight' => 1,
);
$tabset['first_tab']['tabs']['citations']['table'] = array(
'#value' => drupal_get_form('scholar_author_bibliography_form', $names, $username, 'department-citations', $this->pid),
);
$tabset['first_tab']['tabs']['theses'] = array(
'#type' => 'tabpage',
'#title' => t('Theses'),
'#weight' => 2,
);
$tabset['first_tab']['tabs']['theses']['table'] = array(
'#value' => drupal_get_form('scholar_author_bibliography_form', $names, $username, 'department-theses', $this->pid),
);
$tabset['first_tab']['tabs']['metrics'] = array(
'#type' => 'tabpage',
'#title' => t('Metrics'),
'#weight' => 3,
);
$tabset['first_tab']['tabs']['metrics']['content'] = array(
'#value' => scholar_object_metrics_form($names, 'department'),
'#prefix' => '<div class="scholar_metrics_table">',
'#suffix' => '</div>',
);
return $tabset;
}
}
/**
* Construct the form to upload a new document and attach rights
* and usage information
* @param type $form_state
* @param type $pid
* @return type
*/
function build_add_datastream_form(&$form_state, $pid) {
$form = array();
$certifyBox = array(
'1' => 'I Certify That I have the right to upload this version.'
);
$usage = array(
'Contact Publisher' => 'Contact Publisher (I do not hold the copyright)',
'Contact Author' => 'Contact Author (I hold the copyright and wish to retain all rights)',
);
$versions = array(
'PRE-PRINT' => 'PRE-PRINT',
'POST-PRINT' => 'POST-PRINT',
'PUBLISHED' => 'PUBLISHED PDF',
'OTHER' => 'OTHER/UNPUBLISHED',
);
$form['#attributes'] = array('enctype' => "multipart/form-data");
$form['file_uploaded'] = array(
'#type' => 'file',
'#title' => t('Upload Document'),
'#size' => 48,
'#weight' => 1,
'#description' => t('Full text'),
);
$form['version'] = array(
'#type' => 'radios',
'#title' => t('Document Version'),
'#options' => $versions,
'#required' => 'true',
'#weight' => 2,
);
$form['usage'] = array(
'#type' => 'radios',
'#title' => t('Use Permission'),
'#options' => $usage,
'#required' => 'true',
'#default_value' => 1,
'#weight' => 3
);
$form['certify'] = array(
'#type' => 'checkboxes',
'#title' => t('I Certify'),
'#options' => $certifyBox,
'#required' => 'true',
'#weight' => 4,
);
$form['pid'] = array(
'#type' => 'hidden',
'#value' => $pid,
);
$form['submit'] = array(
'#type' => 'submit',
'#value' => t('Upload'),
'#weight' => 5,
'#suffix' => t('Please be patient. Document upload and conversion can take up to a few minutes.'),
);
return $form;
}
/**
* Build the form to upload supplemental information and associate it with
* the object
* @param type $form_state
* @param type $pid
* @return string
*/
function islandora_scholar_supp_info_form(&$form_state, $pid) {
$form = array();
$form['#attributes'] = array('enctype' => "multipart/form-data");
$form['upload'] = array(
'#type' => 'file',
'#title' => t('Attach supplemental information'),
);
$form['supp_submit'] = array(
'#type' => 'submit',
'#value' => t('Submit'),
);
$form['pid'] = array(
'#type' => 'value',
'#value' => $pid,
);
return $form;
}
/**
* Validate the upload form
* @param type $form
* @param type $form_state
* @return type
*/
function islandora_scholar_supp_info_form_validate($form, &$form_state) {
$fieldName = 'upload';
if (isset($_FILES['files']) && is_uploaded_file($_FILES['files']['tmp_name'][$fieldName])) {
$file = file_save_upload($fieldName);
if (!$file) {
form_set_error($fieldName, 'Error uploading file.');
return;
}
$form_state['values']['file'] = $file;
}
else {
form_set_error($fieldName, 'Error uploading file.');
return;
}
if (file_get_mimetype($file->filepath) !== 'application/zip') {
form_set_error($fieldName, 'This file is not a zip!');
return;
}
}
/**
* Submit the upload form and push the file into the ZIP datastream
* @param type $form
* @param type $form_state
*/
function islandora_scholar_supp_info_form_submit($form, &$form_state) {
module_load_include('inc', 'fedora_repository', 'api/fedora_item');
$pid = $form_state['values']['pid'];
$file = $form_state['values']['file'];
$name = str_replace(' ', '_', $file->filename);
$object = new Fedora_Item($pid);
$object->add_datastream_from_file($file->filepath, 'ZIP', $name);
$list = islandora_scholar_zip_list($file->filepath);
$collectionHelper = new CollectionClass();
$xmlstr = $collectionHelper->getStream($pid, "MODS", 0);
$mods_xml = new DOMDocument();
if ($mods_xml != NULL) {
$mods_xml->loadXML($xmlstr);
$xpath = new DOMXPath($mods_xml);
$test = $xpath->query("//*[@type='supplement']")->item(0)->nodeValue;
if ($test !== '') {
$note = $mods_xml->createElement('note', implode(', ', $list));
$note->setAttribute('type', 'supplement');
$mods_element = $mods_xml->getElementsByTagName('mods')->item(0);
$mods_element->appendChild($note);
$object->modify_datastream_by_value($mods_xml->saveXML(), 'MODS', 'MODS Record', 'text/xml');
}
else {
drupal_set_message(t('Entry for supplemental information already exists!'), 'warning');
}
}
else {
drupal_set_message(t('Could not find MODS datastream!'), 'warning');
}
}
/**
* Build form to delete the supplemental information so that
* the MODS record is updated at the same time
* @param type $form_state
* @param type $pid
* @return string
*/
function islandora_scholar_supp_info_delete_form(&$form_state, $pid) {
module_load_include('inc', 'fedora_repository', 'fedora_item');
$form = array();
$object = new Fedora_Item($pid);
$datastream_array = $object->get_datastreams_list_as_array();
if (array_key_exists('POLICY', $datastream_array)) {
$policy_details = $object->get_datastream_info('POLICY');
if ($policy_details->datastream->label == 'Embargo policy - Doc') {
$form['supp_embargo'] = array(
'#id' => 'supp_embargo',
'#type' => 'submit',
'#prefix' => '<p>',
'#suffix' => '</p>',
'#value' => t('Embargo supplemental information'),
);
}
else {
$form['supp_embargo_del'] = array(
'#id' => 'supp_embargo_del',
'#type' => 'submit',
'#prefix' => '<p>',
'#suffix' => '</p>',
'#value' => t('Remove supplemental information embargo'),
);
}
}
else {
$form['supp_embargo'] = array(
'#id' => 'supp_embargo',
'#type' => 'submit',
'#prefix' => '<p>',
'#suffix' => '</p>',
'#value' => t('Embargo supplemental information'),
);
}
$form['supp_delete'] = array(
'#id' => 'supp_delete',
'#type' => 'submit',
'#prefix' => '<p>',
'#suffix' => '</p>',
'#value' => t('Delete supplemental information'),
);
$form['pid'] = array(
'#type' => 'value',
'#value' => $pid,
);
return $form;
}
/**
* Submit the supplementary information delete form
* @param type $form
* @param type $form_state
*/
function islandora_scholar_supp_info_delete_form_submit($form, &$form_state) {
module_load_include('inc', 'fedora_repository', 'api/fedora_item');
$pid = $form_state['values']['pid'];
$object = new Fedora_Item($pid);
$datastream_array = $object->get_datastreams_list_as_array();
$path = drupal_get_path('module', 'scholar');
switch ($form_state['clicked_button']['#id']) {
case 'supp_delete':
$object->purge_datastream('ZIP');
$collectionHelper = new CollectionClass();
$xmlstr = $collectionHelper->getStream($pid, "MODS", 0);
$mods_xml = new DOMDocument();
if ($mods_xml != NULL) {
$mods_xml->loadXML($xmlstr);
$list = $mods_xml->getElementsByTagName('note');
$remove_nodes = array();
foreach ($list as $element) {
$attribute = $element->getAttribute('type');
if ($attribute == 'supplement') {
$remove_nodes[] = $element;
}
}
if (!empty($remove_nodes)) {
foreach ($remove_nodes as $remove_node) {
$remove_node->parentNode->removeChild($remove_node);
}
$object->modify_datastream_by_value($mods_xml->saveXML(), 'MODS', 'MODS Record', 'text/xml');
}
else {
drupal_set_message(t('No MODS element found to remove!'));
}
}
else {
drupal_set_message(t('No MODS datastream found!'), 'warning');
}
break;
case 'supp_embargo':
if (array_key_exists('POLICY', $datastream_array)) {
$policy_details = $object->get_datastream_info('POLICY');
switch ($policy_details->datastream->label) {
case 'Embargo policy - Doc':
$result1 = $object->purge_datastream('POLICY');
$result = $object->add_datastream_from_file($path . '/xacml/both-embargo.xml', 'POLICY', 'Embargo policy - Both');
if ($result1 != NULL) {
drupal_set_message(t('Embargo policy for object \'@pid\' removed!', array('@pid' => $pid)), 'ok');
}
else {
drupal_set_message(t('There was an error trying to remove the embargo policy for object \'@pid\'!', array('@pid' => $pid)), 'error');
}
break;
case 'Embargo policy - Supp':
drupal_set_message(t('Supplemental information embargo already exists!'), 'warning');
break;
case 'Embargo policy - Both':
case 'POLICY':
drupal_set_message(t('Supplemental information embargo already exists!'), 'warning');
break;
default:
drupal_set_message(t('Unknown policy datastream, unable to add!'), 'warning');
}
}
else {
$result = $object->add_datastream_from_file($path . '/xacml/supplemental-embargo.xml', 'POLICY', 'Embargo policy - Supp');
}
if ($result != NULL) {
drupal_set_message(t('Embargo policy for object \'@pid\' added!', array('@pid' => $pid)), 'ok');
}
else {
drupal_set_message(t('There was an error trying to add the embargo policy for object \'@pid\'!', array('@pid' => $pid)), 'error');
}
break;
case 'supp_embargo_del':
$policy_details = $object->get_datastream_info('POLICY');
switch ($policy_details->datastream->label) {
case 'Embargo policy - Supp':
$result = $object->purge_datastream('POLICY');
break;
case 'Embargo policy - Doc':
drupal_set_message(t('Embargo is only set for the document, not removed!'), 'warning');
$result = TRUE;
break;
case 'Embargo policy - Both':
case 'POLICY':
$result = $object->purge_datastream('POLICY');
$result1 = TRUE;
$result1 = $object->add_datastream_from_file($path . '/xacml/document-embargo.xml', 'POLICY', 'Embargo policy - Doc');
if ($result1 != NULL) {
drupal_set_message(t('Document embargo policy for object \'@pid\' added', array('@pid' => $pid)), 'ok');
}
else {
drupal_set_message(t('An error occurred adding the new policy datastream!'), 'warning');
}
break;
default:
drupal_set_message(t('Unknown policy datastream, unable to remove!'), 'warning');
}
if ($result != NULL) {
drupal_set_message(t('Embargo policy for object \'@pid\' removed!', array('@pid' => $pid)), 'ok');
}
else {
drupal_set_message(t('There was an error trying to remove the embargo policy for object \'@pid\'!', array('@pid' => $pid)), 'error');
}
break;
}
}
/**
* Form to delete the associated documents and remove the relevant information
* in the MODS record
* @param type $form_state
* @param type $pid
* @return type
*/
function islandora_scholar_document_delete_form(&$form_state, $pid) {
module_load_include('inc', 'fedora_repository', 'api/fedora_item');
module_load_include('inc', 'fedora_repository', 'ObjectHelper');
module_load_include('inc', 'scholar', 'tracking/scholar_tracking');
global $user;
global $base_url;
$form = array();
$object = new Fedora_Item($pid);
$datastream_array = $object->get_datastreams_list_as_array();
if (module_exists('scholar_tracking')) {
$track = new islandora_scholar_tracking($pid);
}
else {
$track = FALSE;
}
$object_details = islandora_scholar_get_object_profile($pid);
if (array_key_exists('OBJ', $datastream_array)) {
if ($user->name === $object_details['owner'] || user_access('administer scholarly research')) {
$obj_content = l(t('Download document'), 'download_ds/' . $pid . '/OBJ') . '</br>';
if ($track != FALSE) {
$obj_content .= theme('tracking', $pid, 'OBJ');
}
$form['obj_info'] = array(
'#value' => $obj_content,
);
if (user_access('administer scholarly research')) {
$form['obj_delete'] = array(
'#type' => 'submit',
'#name' => 'obj_delete',
'#suffix' => '</br></br>',
'#value' => t('Delete document'),
);
}
}
}
if (array_key_exists('PDF', $datastream_array)) {
$pdf_content = "<div><iframe src=\"http://docs.google.com/viewer?url=" . $base_url . '/fedora/repository/' . $pid . '/PDF/preview.pdf' . "&embedded=TRUE\" style=\"width:600px; height:500px;\" frameborder=\"0\"></iframe></div>";
$pdf_content .= l(t('Download PDF'), 'download_ds/' . $pid . '/PDF') . '</br>';
if ($track != FALSE) {
$pdf_content .= theme('tracking', $pid, 'PDF');
}
$form['pdf_info'] = array(
'#value' => $pdf_content,
);
if (user_access('administer scholarly research')) {
$form['pdf_delete'] = array(
'#type' => 'submit',
'#name' => 'pdf_delete',
'#suffix' => '</br></br>',
'#value' => t('Delete PDF'),
);
}
}
else {
$form['no_doc'] = array(
'#type' => 'value',
'#content' => t('No document has been uploaded yet'),
);
}
if (array_key_exists('PDF', $datastream_array) || array_key_exists('OBJ', $datastream_array)) {
if (user_access('administer scholarly research') || $user->name === $object_details['owner']) {
if (!array_key_exists('POLICY', $datastream_array)) {
$form['embargo'] = array(
'#type' => 'submit',
'#name' => 'embargo',
'#value' => t('Embargo documents'),
);
}
else {
$policy_details = $object->get_datastream_info('POLICY');
if ($policy_details->datastream->label != 'Embargo policy - Supp') {
$form['remove_embargo'] = array(
'#type' => 'submit',
'#name' => 'remove_embargo',
'#value' => t('Remove embargo'),
);
}
else {
$form['embargo'] = array(
'#type' => 'submit',
'#name' => 'embargo',
'#value' => t('Embargo documents'),
);
}
}
}
}
$form['pid'] = array(
'#type' => 'value',
'#value' => $pid,
);
return $form;
}
/**
* Submit the document delete form
* @param type $form
* @param type $form_state
*/
function islandora_scholar_document_delete_form_submit($form, &$form_state) {
module_load_include('inc', 'fedora_repository', 'api/fedora_item');
$path = drupal_get_path('module', 'scholar');
$pid = $form_state['values']['pid'];
$object = new Fedora_Item($pid);
$datastream_array = $object->get_datastreams_list_as_array();
switch ($form_state['clicked_button']['#name']) {
case 'obj_delete':
$dsid = 'OBJ';
break;
case 'pdf_delete':
$dsid = 'PDF';
break;
case 'embargo':
$dsid = 'EMBARGO';
break;
case 'remove_embargo':
$dsid = 'REMOVE_EMBARGO';
break;
}
if ($dsid == 'OBJ' || $dsid == 'PDF') {
$result = $object->purge_datastream($dsid);
if ($result != NULL) {
drupal_set_message(t("Datastream '@dsid' removed!", array('@dsid' => $dsid)));
}
else {
drupal_set_message(t("An error occurred while trying to remove datastream '@dsid'", array('@dsid' => $dsid)), 'error');
}
$collectionHelper = new CollectionClass();
$xmlstr = $collectionHelper->getStream($pid, "MODS", 0);
if (($dsid == 'OBJ' && !array_key_exists('PDF', $datastream_array)) || ($dsid == 'PDF' && !array_key_exists('OBJ', $datastream_array))) {
if ($xmlstr != NULL) {
$mods_xml = new DOMDocument();
$mods_xml->loadXML($xmlstr);
$list = $mods_xml->getElementsByTagName('accessCondition');
$remove_nodes = array();
foreach ($list as $element) {
$attribute = $element->getAttribute('type');
if ($attribute == 'use and reproduction') {
$remove_nodes[] = $element;
}
}
$list2 = $mods_xml->getElementsByTagName('form');
foreach ($list2 as $element2) {
$attribute2 = $element2->getAttribute('authority');
if ($attribute2 == 'local') {
// This is crude as it removes everything in a 'physicalDescription
// tag. If this becomes an issue this remove can be more specific.
$remove_nodes[] = $element2;
}
}
if (!empty($remove_nodes)) {
foreach ($remove_nodes as $remove_node) {
$remove_node->parentNode->removeChild($remove_node);
}
$object->modify_datastream_by_value($mods_xml->saveXML(), 'MODS', 'MODS Record', 'text/xml');
drupal_set_message(t('MODS data relevant to this document has been removed'));
}
else {
drupal_set_message(t('No MODS element found to remove!'));
}
}
else {
drupal_set_message(t('No MODS datastream found!'), 'warning');