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ContentModel.inc
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ContentModel.inc
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<?php
// $Id$
module_load_include('inc', 'fedora_repository', 'XMLDatastream');
class ContentModel extends XMLDatastream {
static $SCHEMA_URI = 'http://localhost/islandoracm.xsd';
static $DEFAULT_DSID = 'ISLANDORACM';
private $mimes = NULL;
public $pid_namespace;
public $name;
/**
* Gets the default DSID to use for ContentModel datastreams.
*
* @return string $default_dsid
*/
static function getDefaultDSID() {
return variable_get('Islandora_Content_Model_DSID', ContentModel::$DEFAULT_DSID);
}
/**
* Constructs a ContentModel object from a Fedora item
* by getting the first content model from the hasModel relationship.
* Returns false on failure.
* @param string $pid
* @return ContentModel $cm
*/
public static function loadFromObject($pid) {
$ret = FALSE;
if (self::validPid($pid)) {
module_load_include('inc', 'fedora_repository', 'ObjectHelper');
$objectHelper=new ObjectHelper();
$content_models = $objectHelper->get_content_models_list($pid);
foreach ($content_models as $content_model) {
if ($content_model != 'fedora-system:FedoraObject-3.0') {
$ret = $content_model;
break;
}
}
}
return $ret;
}
/**
* Ingests a Content Model from a file to the specified pid/dsid .
* Returns false on failure.
*
* @param string $pid
* @param string $name
* @param string $modelDsid
* @param string $file
* @return ContentModel $cm
*/
public static function ingestFromFile($pid, $name, $modelDsid, $file) {
$ret = FALSE;
if (($cm = self::loadFromModel($pid, $modelDsid)) === FALSE && file_exists($file)) {
$cm = new ContentModel(file_get_contents($file), $pid, $modelDsid);
$rootEl = $cm->xml->getElementsByTagName('content_model')->item(0);
$rootEl->setAttribute('name', $name);
module_load_include('inc', 'fedora_repository', 'api/fedora_item');
$fedoraItem = new Fedora_Item($pid);
$fedoraItem->add_datastream_from_string($cm->dumpXml(), $modelDsid, $name, 'text/xml', 'X');
$ret= $cm;
}
return $ret;
}
/**
* Ingests a Content Model from an existing model to the specified pid/dsid .
* Returns false on failure.
*
* @param string $pid
* @param string $name
* @param string $modelDsid
* @param string $copy_model_pid
* @return ContentModel $cm
*/
public static function ingestFromModel($pid, $name, $modelDsid, $copy_model_pid) {
$ret = FALSE;
if (($cm = self::loadFromModel($pid, $modelDsid)) === FALSE && ($copy_cm = self::loadFromModel($copy_model_pid)) !== FALSE && $copy_cm->validate()) {
$newDom = $copy_cm->xml;
$rootEl = $newDom->getElementsByTagName('content_model')->item(0);
$rootEl->setAttribute('name', $name);
$cm = new ContentModel($newDom, $pid, $modelDsid);
module_load_include('inc', 'fedora_repository', 'api/fedora_item');
$fedoraItem = new Fedora_Item($pid);
$fedoraItem->add_datastream_from_string($cm->dumpXml(), $modelDsid, $name, 'text/xml', 'X');
$ret = $cm;
}
return $ret;
}
/**
* Ingests a minimum Content Model to the specified pid/dsid.
* Returns false on failure.
*
* @param string $pid
* @param string $name
* @param string $modelDsid
* @param string $defaultMimetype
* @param string $ingestFromDsid
* @param integer $ingestFormPage
* @param boolean $ingestFormHideFileChooser
* @param string $ingestFormModule
* @param string $ingestFormModule
* @param string $ingestFormFile
* @param string $ingestFormClass
* @param string $ingestFormMethod
* @param string $ingestFormHandler
*
* @return ContentModel $cm
*/
public static function ingestBlankModel($pid, $name, $modelDsid, $defaultMimetype, $ingestFormDsid, $ingestFormPage, $ingestFormHideChooser, $ingestFormModule, $ingestFormModule, $ingestFormFile, $ingestFormClass, $ingestFormMethod, $ingestFormHandler) {
$ret = FALSE;
if (($cm = self::loadFromModel($pid, $modelDsid)) === FALSE) {
$newDom = new DOMDocument('1.0', 'utf-8');
$newDom->formatOutput = TRUE;
$rootEl = $newDom->createElement('content_model');
$rootEl->setAttribute('name', $name);
$rootEl->setAttribute('xmlns', self::$XMLNS);
$rootEl->setAttribute('xmlns:xsi', 'http://www.w3.org/2001/XMLSchema-instance');
$rootEl->setAttribute('xsi:schemaLocation', self::$XMLNS .' '. self::$SCHEMA_URI);
$mimeEl = $newDom->createElement('mimetypes');
$typeEl=$newDom->createElement('type', $defaultMimetype);
$mimeEl->appendChild($typeEl);
$rootEl->appendChild($mimeEl);
$ingestRulesEl = $newDom->createElement('ingest_rules');
$rootEl->appendChild($ingestRulesEl);
$ingestFormEl = $newDom->createElement('ingest_form');
$ingestFormEl->setAttribute('dsid', $ingestFormDsid);
$ingestFormEl->setAttribute('page', $ingestFormPage);
if ($ingestFormHideChooser == 'true') {
$ingestFormEl->setAttribute('hide_file_chooser', 'true');
}
$builderEl= $newDom->createElement('form_builder_method');
$builderEl->setAttribute('module', $ingestFormModule);
$builderEl->setAttribute('file', $ingestFormFile);
$builderEl->setAttribute('class', $ingestFormClass);
$builderEl->setAttribute('method', $ingestFormMethod);
$builderEl->setAttribute('handler', $ingestFormHandler);
$ingestFormEl->appendChild($builderEl);
$elementsEl = $newDom->createElement('form_elements');
$ingestFormEl->appendChild($elementsEl);
$rootEl->appendChild($ingestFormEl);
$newDom->appendChild($rootEl);
$cm = new ContentModel($newDom, $pid, $modelDsid);
module_load_include('inc', 'fedora_repository', 'api/fedora_item');
$fedoraItem = new Fedora_Item($pid);
$fedoraItem->add_datastream_from_string($cm->dumpXml(), $modelDsid, $name, 'text/xml', 'X');
$ret = $cm;
}
return $ret;
}
/**
* Constructs a ContentModel object from the PID of the model in Fedora.
* If DSID is specified it will use that datastream as the model, otherwise it will
* use the default (usually ISLANDORACM). PID_NAMESPACE and name can also be initialized
* from the collection policy.
* Returns false on failure.
*
* NOTE: $name will be overwritten with the content model name found in the datastream
* when the model is first validated.\
*
* @param string $pid
* @param string $dsid
* @param string $pid_namespace
* @param string $name
* @return ContentModel $cm
*/
public static function loadFromModel($pid, $dsid = NULL, $pid_namespace = NULL, $name = NULL) {
$ret = FALSE;
module_load_include('inc', 'fedora_repository', 'api/fedora_item');
try {
if (self::validPid($pid)) {
$fedoraItem = new Fedora_Item($pid);
$dsid = ($dsid != NULL && self::validDsid($dsid)) ? $dsid : ContentModel::getDefaultDSID();
$ds = $fedoraItem->get_datastream_dissemination($dsid);
if (!empty($ds)) {
$ret=new ContentModel($ds, $pid, $dsid, $pid_namespace, $name);
}
}
}
catch (SOAPException $e) {
$ret = FALSE;
}
return $ret;
}
/**
* Constructor
* NOTE: Use the static constructor methods whenever possible.
*
* @param string $xmlStr
* @param string $pid
* @param string $dsid
* @param string $pid_namespace
* @param string $name
* @return XMLDatastream $cm
*/
public function __construct($xmlStr, $pid = NULL, $dsid = NULL, $pid_namespace = NULL, $name = NULL) {
parent::__construct($xmlStr, $pid, $dsid);
$this->pid_namespace = $pid_namespace;
$this->name = ($name == NULL)?'Islandora Content Model':$name;
}
/**
* Attempts to convert from the old XML schema to the new by
* traversing the XML DOM and building a new DOM. When done
* $this->xml is replaced by the newly created DOM..
*
* @return void
*/
protected function convertFromOldSchema() {
$sXml = simplexml_load_string($this->xml->saveXML());
$newDom = new DOMDocument('1.0', 'utf-8');
$newDom->formatOutput = TRUE;
$rootEl = $newDom->createElement('content_model');
$rootEl->setAttribute('name', $sXml['name']);
$rootEl->setAttribute('xmlns', self::$XMLNS);
$rootEl->setAttribute('xmlns:xsi', 'http://www.w3.org/2001/XMLSchema-instance');
$rootEl->setAttribute('xsi:schemaLocation', self::$XMLNS .' ' . self::$SCHEMA_URI);
$mimeEl = $newDom->createElement('mimetypes');
foreach ($sXml->mimetypes->type as $mime) {
$typeEl = $newDom->createElement('type', $mime);
$mimeEl->appendChild($typeEl);
}
$rootEl->appendChild($mimeEl);
$ingestRulesEl = $newDom->createElement('ingest_rules');
foreach ($sXml->ingest_rules->rule as $rule) {
$ruleEl = $newDom->createElement('rule');
foreach ($rule->applies_to as $appTo) {
$applToEl = $newDom->createElement('applies_to', trim($appTo));
$ruleEl->appendChild($applToEl);
}
if (isset($rule->methods->method) && count($rule->methods->method) > 0) {
$methodsEl = $newDom->createElement('ingest_methods');
foreach ($rule->methods->method as $method) {
$methodEl = $newDom->createElement('ingest_method');
$methodEl->setAttribute('module', $method->module);
$methodEl->setAttribute('file', $method->file);
$methodEl->setAttribute('class', $method->class_name);
$methodEl->setAttribute('method', $method->method_name);
$methodEl->setAttribute('dsid', $method->datastream_id);
$methodEl->setAttribute('modified_files_ext', $method->modified_files_ext);
if (isset($method->parameters)) {
$paramsEl = $newDom->createElement('parameters');
foreach ($method->parameters->parameter as $param) {
$paramEl = $newDom->createElement('parameter', $param);
$paramEl->setAttribute('name', $param['name']);
$paramsEl->appendChild($paramEl);
}
$methodEl->appendChild($paramsEl);
}
$methodsEl->appendChild($methodEl);
}
$ruleEl->appendChild($methodsEl);
$ingestRulesEl->appendChild($ruleEl);
}
}
$rootEl->appendChild($ingestRulesEl);
if (isset($sXml->display_in_fieldset) && count($sXml->display_in_fieldset->datastream) > 0) {
$datastreamsEl = $newDom->createElement('datastreams');
foreach ($sXml->display_in_fieldset->datastream as $ds) {
$dsEl = $newDom->createElement('datastream');
$dsEl->setAttribute('dsid', $ds['id']);
if (isset($ds->add_datastream_method)) {
$add_ds_methodEl = $newDom->createElement('add_datastream_method');
$add_ds_methodEl->setAttribute('module', $ds->add_datastream_method->module);
$add_ds_methodEl->setAttribute('file', $ds->add_datastream_method->file);
$add_ds_methodEl->setAttribute('class', $ds->add_datastream_method->class_name);
$add_ds_methodEl->setAttribute('method', $ds->add_datastream_method->method_name);
$add_ds_methodEl->setAttribute('dsid', $ds->add_datastream_method->datastream_id);
$add_ds_methodEl->setAttribute('modified_files_ext', $ds->add_datastream_method->modified_files_ext);
if (isset($ds->add_datastream_method->parameters)) {
$paramsEl = $newDom->createElement('parameters');
foreach ($ds->add_datastream_method->parameters->parameter as $param) {
$paramEl = $newDom->createElement('parameter', $param);
$paramEl->setAttribute('name', $param['name']);
$paramsEl->appendChild($paramEl);
}
$add_ds_methodEl->appendChild($paramsEl);
}
$dsEl->appendChild($add_ds_methodEl);
}
foreach ($ds->method as $disp_meth) {
$disp_methEl = $newDom->createElement('display_method');
$disp_methEl->setAttribute('module', $disp_meth->module);
$disp_methEl->setAttribute('file', $disp_meth->file);
$disp_methEl->setAttribute('class', $disp_meth->class_name);
$disp_methEl->setAttribute('method', $disp_meth->method_name);
$dsEl->appendChild($disp_methEl);
}
$datastreamsEl->appendChild($dsEl);
}
$rootEl->appendChild($datastreamsEl);
}
$ingest_formEl = $newDom->createElement('ingest_form');
$ingest_formEl->setAttribute('dsid', $sXml->ingest_form['dsid']);
$ingest_formEl->setAttribute('page', $sXml->ingest_form['page']);
if (isset($sXml->ingest_form['hide_file_chooser'])) {
$ingest_formEl->setAttribute('hide_file_chooser', (strtolower($sXml->ingest_form['hide_file_chooser']) == 'true') ? 'true' : 'false');
}
$form_builderEl = $newDom->createElement('form_builder_method');
$form_builderEl->setAttribute('module', $sXml->ingest_form->form_builder_method->module);
$form_builderEl->setAttribute('file', $sXml->ingest_form->form_builder_method->file);
$form_builderEl->setAttribute('class', $sXml->ingest_form->form_builder_method->class_name);
$form_builderEl->setAttribute('method', $sXml->ingest_form->form_builder_method->method_name);
$form_builderEl->setAttribute('handler', $sXml->ingest_form->form_builder_method->form_handler);
$ingest_formEl->appendChild($form_builderEl);
$form_elementsEl = $newDom->createElement('form_elements');
foreach ($sXml->ingest_form->form_elements->element as $element) {
//I found an XML where the label was HTML.. this code will attempt to
//walk the object setting the label to be the first string it finds.
if (count(get_object_vars($element->label)) > 0) {
$obj=$element->label;
while ($obj != NULL && !is_string($obj)) {
$keys = get_object_vars($obj);
$obj = array_shift($keys);
}
$element->label=($obj == NULL) ? '' : $obj;
}
$elEl = $newDom->createElement('element');
$elEl->setAttribute('label', $element->label);
$elEl->setAttribute('name', $element->name);
$elEl->setAttribute('type', $element->type);
if (strtolower($element->required) == 'true') {
$elEl->setAttribute('required', 'true');
}
if (isset($element->description) && trim($element->description) != '') {
$descEl = $newDom->createElement('description', trim($element->description));
$elEl->appendChild($descEl);
}
if (isset($element->authoritative_list)) {
$authListEl = $newDom->createElement('authoritative_list');
foreach ($element->authoritative_list->item as $item) {
$itemEl = $newDom->createElement('item', trim($item->value));
if (trim($item->value) != trim($item->field)) {
$itemEl->setAttribute('field', trim($item->field));
}
$authListEl->appendChild($itemEl);
}
$elEl->appendChild($authListEl);
}
$form_elementsEl->appendChild($elEl);
}
$ingest_formEl->appendChild($form_builderEl);
$ingest_formEl->appendChild($form_elementsEl);
$rootEl->appendChild($ingest_formEl);
if (isset($sXml->edit_metadata) &&
trim($sXml->edit_metadata->build_form_method->module) != '' &&
trim($sXml->edit_metadata->build_form_method->file) != '' &&
trim($sXml->edit_metadata->build_form_method->class_name) != '' &&
trim($sXml->edit_metadata->build_form_method->method_name) != '' &&
trim($sXml->edit_metadata->submit_form_method->method_name) != '' &&
trim($sXml->edit_metadata->build_form_method['dsid']) != ''
) {
$edit_metadata_methodEl= $newDom->createElement('edit_metadata_method');
$edit_metadata_methodEl->setAttribute('module', $sXml->edit_metadata->build_form_method->module);
$edit_metadata_methodEl->setAttribute('file', $sXml->edit_metadata->build_form_method->file);
$edit_metadata_methodEl->setAttribute('class', $sXml->edit_metadata->build_form_method->class_name);
$edit_metadata_methodEl->setAttribute('method', $sXml->edit_metadata->build_form_method->method_name);
$edit_metadata_methodEl->setAttribute('handler', $sXml->edit_metadata->submit_form_method->method_name);
$edit_metadata_methodEl->setAttribute('dsid', $sXml->edit_metadata->build_form_method['dsid']);
$rootEl->appendChild($edit_metadata_methodEl);
}
$newDom->appendChild($rootEl);
$this->xml = DOMDocument::loadXML($newDom->saveXml());
}
/**
* Gets a list of service deployments that this model has.
*
* NOTE: Not currently being used.
*
* @return String[] $serviceDepPids
*/
public function getServices() {
$query = 'select $object $title from <#ri>
where ($object <dc:title> $title
and $object <fedora-model:isDeploymentOf> $deploymentOf
and $object <fedora-model:hasModel> <info:fedora/fedora-system:ServiceDeployment-3.0>
and $object <fedora-model:isContractorOf> <info:fedora/'. $this->pid .'>
and $object <fedora-model:state> <info:fedora/fedora-system:def/model#Active>)
order by $title';
module_load_include('inc', 'fedora_repository', 'CollectionClass');
$collectionHelper = new CollectionClass();
$xml = simplexml_load_string($collectionHelper->getRelatedItems($this->pid, $query));
$results = array();
foreach ($xml->results->result as $result) {
$pid = strval(($result->object['uri']));
$pid = substr($pid, strpos($pid, "/") + 1, strlen($pid));
$results[] = $pid;
}
return $results;
}
/**
* Gets the name of the ContentModel
* Returns false on failure.
*
* @return String $name
*/
public function getName() {
$ret = FALSE;
if ($this->name != NULL) {
$ret = $this->name;
}
elseif ($this->validate()) {
$rootEl = $this->xml->getElementsByTagName('content_model')->item(0);
$this->name = $rootEl->getAttribute('name');
$ret = $this->name;
}
return $ret;
}
/**
* Gets the element corresponding to the datastream specified
* in the <datastreams> element of the schema.
* Returns FALSE on failure.
*
* @param $dsid
* @return DOMElement $datastream
*/
private function getDSModel($dsid) {
$ret = FALSE;
if (self::validDsid($dsid) && $this->validate()) {
$result=$this->xml->getElementsByTagName('datastreams');
if ($result->length > 0) {
$result=$result->item(0)->getElementsByTagName('datastream');
for ($i = 0; $ret == FALSE && $i < $result->length; $i++) {
if ($result->item($i)->getAttribute('dsid') == $dsid)
$ret=$result->item($i);
}
}
}
return $ret;
}
/**
* Gets an array of form elements to use in the ingest form. The results of this array are passed
* to the specified ingest form builder. The form builder can optionally not use the elements as defined
* in the form builder if more complex forms or behaviour is required.
* Each element has the following keys: 'label', 'type', 'required', 'description', and if defined, 'authoritative_list' and/or 'parameters'
*
* @return string[] $elements
*/
public function getIngestFormElements() {
$ret = FALSE;
if ($this->validate()) {
$elements_array = array();
$form_elements_wrapper = $this->xml->getElementsbyTagName('ingest_form')->item(0)->getElementsByTagName('form_elements');
if ($form_elements_wrapper->length == 0) {
return $ret;
}
$elements = $this->xml->getElementsbyTagName('ingest_form')->item(0)->getElementsByTagName('form_elements')->item(0)->getElementsByTagName('element');
for ($i=0;$i<$elements->length;$i++) {
$desc = $elements->item($i)->getElementsByTagName('description');
$desc = ($desc->length > 0)?$desc->item(0)->nodeValue:'';
$label = $elements->item($i)->getAttribute('label');
if ($label == NULL) {
$label=$elements->item($i)->getAttribute('name');
}
$element=array('name' => $elements->item($i)->getAttribute('name'),
'label' => $label,
'type' => $elements->item($i)->getAttribute('type'),
'required' => ($elements->item($i)->getAttribute('required') == 'true') ? TRUE : FALSE,
'description' => $desc
);
$auth_list = $elements->item($i)->getElementsByTagName('authoritative_list');
if ($auth_list->length > 0) {
$list = array();
$items = $auth_list->item(0)->getElementsByTagName('item');
for ($j = 0; $j < $items->length; $j++) {
$field = $items->item($j)->attributes->getNamedItem('field');
$list[ $items->item($j)->nodeValue ] = ($field !== NULL) ? $field->nodeValue : $items->item($j)->nodeValue;
}
$element['authoritative_list']=$list;
}
$params = $elements->item($i)->getElementsByTagName('parameters');
$list = array();
if ($params->length > 0) {
$items = $params->item(0)->getElementsByTagName('parameter');
for ($j = 0; $j < $items->length; $j++) {
$value = $items-> item($j)->nodeValue;
$list[$items->item($j)->getAttribute('name')] = (strtolower($value) == 'true' ? TRUE : (strtolower($value) == 'false' ? FALSE : $value));
}
}
$element['parameters'] = $list;
$elements_array[] = $element;
}
$ret = $elements_array;
}
return $ret;
}
/**
* Decrements an ingest form element in the list of elements.
* Updates the "order". This method is simply an overload to the incIngestFormElement
* which has a direction parameter.
*
* TODO: Might be useful to move multiple places at once, or define
* a method to move to an absolute position.
*
* @param String $name
* @return boolean $success
*/
public function decIngestFormElement($name) {
return $this->incIngestFormElement($name, 'dec');
}
/**
* Increments (or decrements) ingest form element in the list of elements.
* Updates the "order". The $reorder parameter accepts 'inc' or 'dec' to
* specify the direction to move (defaults to increment.)
*
* TODO: Might be useful to move multiple places at once, or define
* a method to move to an absolute position.
*
* @param String $name
* @param String $reorder
* @return boolean $success
*/
public function incIngestFormElement($name, $reorder = 'inc') {
$ret = FALSE;
if ($this->validate()) {
$elementsEl = $this->xml->getElementsbyTagName('ingest_form')->item(0)->getElementsByTagName('form_elements')->item(0);
$elements = $elementsEl->getElementsByTagName('element');
$found = FALSE;
$refEl = FALSE;
for ($i = 0; $found === FALSE && $i < $elements->length; $i++) {
if ($elements->item($i)->getAttribute('name') == trim($name)) {
if ($reorder == 'inc') {
$found=$elements->item($i);
$refEl = ($i > 0)?$elements->item($i-1):false;
}
else {
$found = ($i + 1 < $elements->length) ? $elements->item($i + 1) : FALSE;
$refEl = $elements->item($i);
}
}
}
if ($found !== FALSE) {
$elementsEl->removeChild($found);
$elementsEl->insertBefore($found, $refEl);
$ret = TRUE;
}
}
return $ret;
}
/**
* Removes an ingest form element from the list of ingest form elements.
* @param String $name
* @return boolean $success
*/
public function removeIngestFormElement($name) {
$ret = FALSE;
if ($this->validate()) {
$elementsEl = $this->xml->getElementsbyTagName('ingest_form')->item(0)->getElementsByTagName('form_elements')->item(0);
$elements = $elementsEl->getElementsByTagName('element');
$found = FALSE;
for ($i = 0; $found === FALSE && $i < $elements->length; $i++) {
if ($elements->item($i)->getAttribute('name') == trim($name)) {
$found=$elements->item($i);
}
}
if ($found !== FALSE) {
$elementsEl->removeChild($found);
$ret = TRUE;
}
}
return $ret;
}
/**
* Sets a parameter of an ingest form element. If the value of the element is FALSE the parameter
* will be removed entirely (if you want to store false as a value, then send the String "false").
*
* @param String $elementName
* @param String $paramName
* @param String $paramValue
* @return boolean success
*/
public function setIngestFormElementParam($name, $paramName, $paramValue) {
$ret = FALSE;
if ($this->validate()) {
$elements = $this->xml->getElementsbyTagName('ingest_form')->item(0)->getElementsByTagName('form_elements')->item(0)->getElementsByTagName('element');
$element = FALSE;
for ($i = 0; $element === FALSE && $i < $elements->length; $i++) {
if ($elements->item($i)->getAttribute('name') == $name) {
$element = $elements->item($i);
}
}
if ($element !== FALSE) {
$paramsEl = $element->getElementsByTagName('parameters');
if ($paramsEl->length == 0) {
if ($paramValue !== FALSE) {
$paramsEl = $this->xml->createElement('parameters');
$element->appendChild($paramsEl);
}
else {
$ret = TRUE;
}
}
else {
$paramsEl=$paramsEl->item(0);
}
if (!$ret) {
$params = $paramsEl->getElementsByTagName('parameter');
$found = FALSE;
for ($i = 0; $found === FALSE && $i < $params->length; $i++) {
if ($params->item($i)->getAttribute('name') == $paramName) {
$found=$params->item($i);
}
}
if ($paramValue === FALSE) {
if ($found !== FALSE) {
$paramsEl->removeChild($found);
if ($params->length == 0) {
$element->removeChild($paramsEl);
}
}
$ret = TRUE;
}
else {
if ($found !== FALSE) {
$found->nodeValue = $paramValue;
}
else {
$paramEl=$this->xml->createElement('parameter', $paramValue);
$paramEl->setAttribute('name', $paramName);
$paramsEl->appendChild($paramEl);
}
$ret = TRUE;
}
}
}
}
return $ret;
}
/**
* Gets a list of all parameters that belong to the specified ingest form element.
*
* @param String $elementName
* @return boolean success
*/
public function getIngestFormElementParams($name) {
$ret = FALSE;
if ($this->validate()) {
$elements = $this->xml->getElementsbyTagName('ingest_form')->item(0)->getElementsByTagName('form_elements')->item(0)->getElementsByTagName('element');
$element = FALSE;
for ($i=0; $element === FALSE && $i < $elements->length; $i++) {
if ($elements->item($i)->getAttribute('name') == $name) {
$element = $elements->item($i);
}
}
if ($element !== FALSE) {
$ret = array();
$paramsEl = $element->getElementsByTagName('parameters');
if ($paramsEl->length > 0) {
$params = $paramsEl->item(0)->getElementsByTagName('parameter');
for ($i = 0; $i < $params->length; $i++) {
$ret[$params->item($i)->getAttribute('name')]=$params->item($i)->nodeValue;
}
}
}
}
return $ret;
}
/**
* Edits the ingest form element specified.
* NOTE: The element name can not be changed. To update an elements name
* it must be deleted and added with the new name.
*
* @param String $name
* @param String $label
* @param String $type
* @param boolean $required
* @param String description
* @return boolean success
*/
public function editIngestFormElement($name, $label, $type, $required, $description) {
$ret = FALSE;
if ($this->validate()) {
$elements = $this->xml->getElementsbyTagName('ingest_form')->item(0)->getElementsByTagName('form_elements')->item(0)->getElementsByTagName('element');
$found = FALSE;
for ($i = 0; $found === FALSE && $i < $elements->length; $i++) {
if ($elements->item($i)->getAttribute('name') == $name) {
$found = $elements->item($i);
}
}
$found->setAttribute('name', $name);
$found->setAttribute('type', $type);
$found->setAttribute('required', $required ? 'true' : 'false');
if (trim($label) != '' && trim($label) != trim($name)) {
$found->setAttribute('label', $label);
}
elseif ($found->getAttribute('label') != '') {
$found->removeAttribute('label');
}
$descEl=$found->getElementsByTagName('description');
if (trim($description) != '') {
if ($descEl->length > 0) {
$descEl=$descEl->item(0);
$descEl->nodeValue = $description;
}
else {
$descEl = $this->xml->createElement('description', $description);
$found->appendChild($descEl);
}
}
elseif ($descEl->length > 0) {
$found->removeChild($descEl->item(0));
}
if ($found->getAttribute('type') != 'select' && $found->getAttribute('type') != 'radio') {
$authList = $found->getElementsByTagName('authoritative_list');
if ($authList->length > 0) {
$found->removeChild($authList->item(0));
}
}
$ret = TRUE;
}
return $ret;
}
/**
* Add an ingest form element to the model.
*
* @param String $name
* @param String $label
* @param String $type
* @param boolean $required
* @param String $description
* @return boolean $success
*/
public function addIngestFormElement($name, $label, $type, $required, $description = '') {
$ret = FALSE;
if ($this->validate()) {
$elements = $this->xml->getElementsbyTagName('ingest_form')->item(0)->getElementsByTagName('form_elements')->item(0);
$elementEl = $this->xml->createElement('element');
$elementEl->setAttribute('name', $name);
$elementEl->setAttribute('type', $type);
$elementEl->setAttribute('required', $requiredi ? 'true' : 'false');
if (trim($label) != '' && trim($label) != trim($name)) {
$elementEl->setAttribute('label', $label);
}
if (trim($description) != '') {
$descEl=$this->xml->createElement('description', $description);
$elementEl->appendChild($descEl);
}
$elements->appendChild($elementEl);
$ret = TRUE;
}
return $ret;
}
/**
* Decrements an authority list item from a form element in the list of elements.
* Updates the "order". This method is simply an overload to the incAuthListItem
* which has a direction parameter.
*
* @param String $elementName
* @param String $value
* @return boolean $success
*/
public function decAuthListItem($elementName, $value) {
return $this->incAuthListItem($elementName, $value, 'dec');
}
/**
* Increments (or decrements) an authority list item from a form element in the list of elements.
* Updates the "order".
*
* @param String $elementName
* @param String $value
* @param String $direction
* @return boolean $success
*/
public function incAuthListItem($elementName, $value, $reorder = 'inc') {
$ret = FALSE;
if ($this->validate()) {
$elements = $this->xml->getElementsbyTagName('ingest_form')->item(0)->getElementsByTagName('form_elements')->item(0)->getElementsByTagName('element');
$found = FALSE;
for ($i = 0; $found === FALSE && $i < $elements->length; $i++) {
if ($elements->item($i)->getAttribute('name') == $elementName) {
$found = $elements->item($i);
}
}
if ($found !== FALSE) {
$authListEl = $found->getElementsByTagName('authoritative_list');
if ($authListEl->length > 0) {
$authListEl = $authListEl->item(0);
$items = $authListEl->getElementsByTagName('item');
$found = FALSE;
$refEl = FALSE;
for ($i = 0; $found === FALSE && $i < $items->length; $i++) {
if ($items->item($i)->nodeValue == $value) {
if ($reorder == 'inc') {
$refEl = ($i > 0) ? $items->item($i - 1) : FALSE;
$found = $items->item($i);
}
else {
$refEl = $items->item($i);
$found = ($i + 1 < $items->length) ? $items->item($i + 1) : FALSE;
}
}
}
if ($found !== FALSE && $refEl !== FALSE) {
$authListEl->removeChild($found);
$authListEl->insertBefore($found, $refEl);
$ret = TRUE;
}
}
}
}
return $ret;
}
/**
* Removes an authority list item from a form element.
@param String $elementName
@param String $value
@return boolean $success
*/
public function removeAuthListItem($elementName, $value) {
$ret = FALSE;
if ($this->validate()) {
$elements = $this->xml->getElementsbyTagName('ingest_form')->item(0)->getElementsByTagName('form_elements')->item(0)->getElementsByTagName('element');
$found = FALSE;
for ($i = 0; $found === FALSE && $i < $elements->length; $i++) {
if ($elements->item($i)->getAttribute('name') == $elementName) {
$found = $elements->item($i);
}
}
if ($found !== FALSE) {
$authListEl = $found->getElementsByTagName('authoritative_list');
if ($authListEl->length > 0) {
$authListEl = $authListEl->item(0);
$items = $authListEl->getElementsByTagName('item');
$found = FALSE;
for ($i = 0; $found === FALSE && $i < $items->length; $i++) {
if ($items->item($i)->nodeValue == $value) {
$found=$items->item($i);
}
}
if ($found !== FALSE) {
if ($items->length == 1) {
$found->removeChild($authListEl);
}
else {
$authListEl->removeChild($found);
}
$ret = TRUE;
}
}
}
}
return $ret;
}
/**
* Adds an authority list item to a form element.
@param String $elementName
@param String $value
@param String $label (optional)
@return boolean $success
*/
public function addAuthListItem($elementName, $value, $label = '') {
$ret = FALSE;
if ($this->validate()) {
$elements = $this->xml->getElementsbyTagName('ingest_form')->item(0)->getElementsByTagName('form_elements')->item(0)->getElementsByTagName('element');
$found = FALSE;
for ($i = 0; $found === FALSE && $i < $elements->length; $i++) {
if ($elements->item($i)->getAttribute('name') == $elementName) {
$found = $elements->item($i);
}
}
if ($found !== FALSE) {
$authListEl = $found->getElementsByTagName('authoritative_list');
if ($authListEl->length == 0) {
$authListEl = $this->xml->createElement('authoritative_list');
$found->appendChild($authListEl);
}
else {
$authListEl = $authListEl->item(0);
}
$items = $authListEl->getElementsByTagName('item');
$found = FALSE;
for ($i = 0; $found == FALSE && $i < $items->length; $i++) {
if ($items->item($i)->nodeValue == $value) {
$found = TRUE;
}
}
if (!$found) {
$itemEl = $this->xml->createElement('item', trim($value));
if (trim($label) != '' && trim($label) != trim($value)) {
$itemEl->setAttribute('field', trim($label));
}
$authListEl->appendChild($itemEl);
$ret = TRUE;
}
}
}
return $ret;
}
/**
* Builds an ingest form using the method specified in <form_builder_method> element of <ingest_form>
* Returns FALSE on failure.
*