From 1bb2f4805f51d58a2cce80247b59605b37c39f80 Mon Sep 17 00:00:00 2001 From: Alan Stanley Date: Thu, 16 Aug 2012 14:42:50 -0300 Subject: [PATCH] updated get_ref_relationships to accomodate new namespaces --- api/fedora_item.inc | 137 +++++++++++++++++++++++++------------------- 1 file changed, 79 insertions(+), 58 deletions(-) diff --git a/api/fedora_item.inc b/api/fedora_item.inc index 03de0605..7ce42b57 100644 --- a/api/fedora_item.inc +++ b/api/fedora_item.inc @@ -118,7 +118,7 @@ class Fedora_Item { drupal_set_message(t('The datastream file %datastream_file could not be read! (likely due to permissions...)', array('%datastream_file' => $datastream_file)), 'warning'); return; } - + if (empty($datastream_mimetype)) { // Get mime type from the file extension. $mimetype_helper = new MimeClass(); @@ -158,7 +158,7 @@ class Fedora_Item { // Fedora has some problems getting files from HTTPS connections sometimes, so if we are getting a file // from the local drupal, we try to pass a HTTP url instead of a HTTPS one. - if(stripos($datastream_url, 'https://') !== FALSE && stripos($datastream_url, $base_url) !== FALSE) { + if (stripos($datastream_url, 'https://') !== FALSE && stripos($datastream_url, $base_url) !== FALSE) { $datastream_url = str_ireplace('https://', 'http://', $datastream_url); } @@ -255,7 +255,7 @@ class Fedora_Item { if ($relsextxml === NULL) { $relsextxml = new DOMDocument(); //Avoid new instantiations in long-running processes } - + $ds_list = $this->get_datastreams_list_as_array(); $f_prefix = 'info:fedora/'; if (!array_key_exists('RELS-EXT', $ds_list)) { @@ -269,7 +269,7 @@ RDF; } $relsext = $this->get_datastream_dissemination('RELS-EXT'); - + if ($literal_value == REL_TYPE_URI && strpos($object, $f_prefix) !== 0) { $object = $f_prefix . $object; } @@ -308,7 +308,7 @@ RDF; } $description->appendChild($newrel); - + return $this->modify_datastream($relsextxml->saveXML(), 'RELS-EXT', "Fedora Object-to-Object Relationship Metadata", 'application/rdf+xml'); //print ($description->dump_node()); /* @@ -341,37 +341,37 @@ RDF; */ function purge_relationships($relationship, $object, $namespaceURI = RELS_EXT_URI, $literal_value = FALSE) { $relsext = $this->get_datastream_dissemination('RELS-EXT'); - + $relsextxml = new DomDocument(); $relsextxml->loadXML($relsext); $modified = FALSE; $rels = $relsextxml->getElementsByTagNameNS($namespaceURI, $relationship); if (!empty($rels)) { // iterate backwards so if we delete something our pointer doesn't get out of sync - for ($i = $rels->length; $i>0; $i--) { - $rel = $rels->item($i-1); + for ($i = $rels->length; $i > 0; $i--) { + $rel = $rels->item($i - 1); // foreach ($rels as $rel) { // moving forward like this caused iteration errors when something was deleted - if ( //If either no object is specified, or the object matches (in either the literal or URI case), remove this node from it's parent, and mark as changed. - empty($object) || - (($literal_value == RELS_TYPE_URI) && $rel->getAttributeNS('http://www.w3.org/1999/02/22-rdf-syntax-ns#', 'resource') == $object) || - (($literal_value == RELS_TYPE_PLAIN_LITERAL) && $rel->textContent == $object) || - (($literal_value == RELS_TYPE_STRING) && $rel->getAttribute('rdf:datatype') == 'http://www.w3.org/2001/XMLSchema#string' && $rel->textContent == $object) || - (($literal_value == RELS_TYPE_INT) && $rel->getAttribute('rdf:datatype') == 'http://www.w3.org/2001/XMLSchema#int' && intval($rel->textContent) == $object)) { + if (//If either no object is specified, or the object matches (in either the literal or URI case), remove this node from it's parent, and mark as changed. + empty($object) || + (($literal_value == RELS_TYPE_URI) && $rel->getAttributeNS('http://www.w3.org/1999/02/22-rdf-syntax-ns#', 'resource') == $object) || + (($literal_value == RELS_TYPE_PLAIN_LITERAL) && $rel->textContent == $object) || + (($literal_value == RELS_TYPE_STRING) && $rel->getAttribute('rdf:datatype') == 'http://www.w3.org/2001/XMLSchema#string' && $rel->textContent == $object) || + (($literal_value == RELS_TYPE_INT) && $rel->getAttribute('rdf:datatype') == 'http://www.w3.org/2001/XMLSchema#int' && intval($rel->textContent) == $object)) { $rel->parentNode->removeChild($rel); $modified = TRUE; } } } - + //Save changes. if ($modified) { $this->modify_datastream($relsextxml->saveXML(), 'RELS-EXT', "Fedora Object-to-Object Relationship Metadata", 'text/xml'); } - + //Return whether or not we've introduced any changes. return $modified; } - + /** * Removes the given relationship from the item's RELS-EXT and re-saves it. * @@ -529,7 +529,7 @@ RDF; 'dsID' => $dsid, 'asOfDateTime' => $as_of_date_time, ); - + // Make soap call with quite $object = self::soap_call('getDataStreamDissemination', $params, $quiet); if (!empty($object)) { @@ -684,7 +684,7 @@ RDF; if (!is_array($this->datastreams_list->datastreamDef)) { $xml_list = array($xml_list); } - + foreach ($xml_list as $ds) { if (!is_object($ds)) { print_r($ds); @@ -752,8 +752,26 @@ RDF; return $relationships; } - function get_rdf_relationships() { + /** + * Retrieves RELS-EXT values from item + * + * @param array $namespaces + * @return array + */ + function get_rdf_relationships($namespaces = null) { + if ($namespaces == NULL) { + $namespaces = array( + RELS_EXT_URI, + FEDORA_MODEL_URI, + ISLANDORA_PAGE_URI, + ISLANDORA_RELS_EXT_URI, + ISLANDORA_RELS_INT_URI, + ); + } + if (!is_array($namespaces)) { + $namespaces = array($namespaces); + } $relationships = array(); try { $relsext = $this->get_datastream_dissemination('RELS-EXT'); @@ -767,13 +785,16 @@ RDF; $relsextxml->loadXML($relsext); $relsextxml->normalizeDocument(); $allTags = array(); - $allTags[] = $relsextxml->getElementsByTagNameNS(RELS_EXT_URI, '*'); - $allTags[] = $relsextxml->getElementsByTagNameNS(FEDORA_MODEL_URI, '*'); - $allTags[] = $relsextxml->getElementsByTagNameNS(ISLANDORA_PAGE_URI, '*'); + foreach ($namespaces as $namespace) { + $allTags[] = $relsextxml->getElementsByTagNameNS($namespace, '*'); + } + foreach ($allTags as $tags) { foreach ($tags as $child) { - $value = preg_replace('/info:fedora\//','',$child->getAttributeNS('http://www.w3.org/1999/02/22-rdf-syntax-ns#', 'resource')); - + $value = preg_replace('/info:fedora\//', '', $child->getAttributeNS('http://www.w3.org/1999/02/22-rdf-syntax-ns#', 'resource')); + if (!$value) { + $value = $child->textContent; + } $relationships[$child->tagName][] = $value; } } @@ -980,9 +1001,9 @@ RDF; $params = array( 'pid' => $this->pid, - 'ownerId' => (($ownerId !== NULL)? //Default to the current owner if none is provided. - $ownerId: - $this->objectProfile->objOwnerId), + 'ownerId' => (($ownerId !== NULL) ? //Default to the current owner if none is provided. + $ownerId : + $this->objectProfile->objOwnerId), 'state' => $state, 'label' => $label, 'logMessage' => $logMessage @@ -1016,32 +1037,32 @@ RDF; $components = explode('/', $parsed_url['path']); $components = array_map('rawurlencode', $components); $fixed_url = url( - t( - '!scheme://!user:!pass@!host:!port/!path', - array( - '!scheme' => $parsed_url['scheme'], - '!user' => rawurlencode($parsed_url['user']), - '!pass' => rawurlencode($parsed_url['pass']), - '!host' => $parsed_url['host'], - '!port' => $parsed_url['port'], - '!path' => implode('/', $components), - ) - ), - array( - 'query' => $parsed_url['query'], - 'fragment' => $parsed_url['fragment'], - ) + t( + '!scheme://!user:!pass@!host:!port/!path', + array( + '!scheme' => $parsed_url['scheme'], + '!user' => rawurlencode($parsed_url['user']), + '!pass' => rawurlencode($parsed_url['pass']), + '!host' => $parsed_url['host'], + '!port' => $parsed_url['port'], + '!path' => implode('/', $components), + ) + ), + array( + 'query' => $parsed_url['query'], + 'fragment' => $parsed_url['fragment'], + ) ); $result = drupal_http_request($fixed_url); - if ((int)($result->code / 100) === 2) { + if ((int) ($result->code / 100) === 2) { $content = $result->data; } else { watchdog('fedora_repository', 'Failed making HTTP request to @URL. Info: @info', array( '@URL' => $fixed_url, '@info' => print_r($result, TRUE), - ), 'warning'); + ), 'warning'); } } @@ -1091,7 +1112,7 @@ RDF; $content = $filename_or_content; } } - + $toReturn = $this->modify_datastream_by_value($content, $dsid, $label, $mime_type, $force, $logMessage); } //Otherwise, write to web-accessible temp file and modify by reference. @@ -1099,7 +1120,7 @@ RDF; $file = ''; $created_temp = FALSE; if (is_file($filename_or_content) && is_readable($filename_or_content)) { - $file = $filename_or_content; + $file = $filename_or_content; $original_path = $file; // Temporarily move file to a web-accessible location. file_copy($file, file_directory_path()); @@ -1117,21 +1138,21 @@ RDF; $file = file_save_data($filename_or_content, file_create_filename($label, file_directory_path())); $created_temp = TRUE; } - + $parts = explode(DIRECTORY_SEPARATOR, $file); $parts = array_map('rawurlencode', $parts); $file_url = file_create_url(implode(DIRECTORY_SEPARATOR, $parts)); - + $toReturn = $this->modify_datastream_by_reference($file_url, $dsid, $label, $mime_type, $force, $logMessage); - + if ($created_temp && is_file($file) && is_writable($file)) { file_delete($file); } } - + return $toReturn; } - + /** * Modify datastream by reference * @param type $external_url @@ -1148,10 +1169,10 @@ RDF; // Fedora has some problems getting files from HTTPS connections sometimes, so if we are getting a file // from the local drupal, we try to pass a HTTP url instead of a HTTPS one. - if(stripos($external_url, 'https://') !== FALSE && stripos($external_url, $base_url) !== FALSE) { + if (stripos($external_url, 'https://') !== FALSE && stripos($external_url, $base_url) !== FALSE) { $external_url = str_ireplace('https://', 'http://', $external_url); } - + $params = array( 'pid' => $this->pid, 'dsID' => $dsid, @@ -1228,10 +1249,10 @@ RDF; self::$connection_helper = new ConnectionHelper(); } $url = ( - in_array($function, self::$SoapManagedFunctions)? - variable_get('fedora_soap_manage_url', 'http://localhost:8080/fedora/wsdl?api=API-M') : - variable_get('fedora_soap_url', 'http://localhost:8080/fedora/services/access?wsdl') - ); + in_array($function, self::$SoapManagedFunctions) ? + variable_get('fedora_soap_manage_url', 'http://localhost:8080/fedora/wsdl?api=API-M') : + variable_get('fedora_soap_url', 'http://localhost:8080/fedora/services/access?wsdl') + ); try { $soap_client = self::$connection_helper->getSoapClient($url); if (isset($soap_client)) {