/**
* This is the general entrance of creating actual content.
* When anything goes wrong, e.g. found no record, or $set_name is not recognised, an exception will be thrown.
*
* \param $set_name Type: string. The name of set is going to be created.
* \param $key Type: string. The main identifier used in the system. There can be other identifiers.
*/
public function create_obj_node($set_name, $key) {
$set_name = strtolower($set_name);
if (in_array($set_name, prepare_set_names())) {
try {
$record = Database::get()->querySingle("select * from oai_record where oai_identifier = ?s", $key);
$metadata = Database::get()->queryArray("select * from oai_metadata where oai_record = ?d", $record->id);
$meta_record = array();
foreach ($metadata as $meta_row) {
$meta_record[$meta_row->field] = $meta_row->value;
}
foreach ($meta_record as $rkey => $rvalue) {
if (!strncmp($rkey, 'dc_', 3)) {
$is_serialized = false;
$valArr = @unserialize(base64_decode($rvalue));
if ($valArr !== false) {
$is_serialized = true;
}
if ($is_serialized) {
foreach ($valArr as $vkey => $vvalue) {
// handle multi-dimensional arrays for combined multi-lang & simple multiplicity
if (is_array($vvalue)) {
foreach ($vvalue as $vkey2 => $vvalue2) {
$added_node = $this->oai_pmh->addChild($this->working_node, str_replace("dc_", "dc:", $rkey), $vvalue2);
// numeric vkeys show simple multiplicity
// string vkeys show multi-lang multiplicity requiring xml:lang attribute
if (!is_numeric($vkey2)) {
$added_node->setAttribute('xml:lang', $vkey2);
}
}
} else {
$added_node = $this->oai_pmh->addChild($this->working_node, str_replace("dc_", "dc:", $rkey), $vvalue);
// numeric vkeys show simple multiplicity
// string vkeys show multi-lang multiplicity requiring xml:lang attribute
if (!is_numeric($vkey)) {
$added_node->setAttribute('xml:lang', $vkey);
}
}
}
} else {
$this->oai_pmh->addChild($this->working_node, str_replace("dc_", "dc:", $rkey), $rvalue);
}
}
}
} catch (PDOException $e) {
echo "$key returned no record.\n";
echo $e->getMessage();
}
} else {
throw new Exception('Wrong set name was used: ' . $set_name);
}
}
/**
* This is the general entrence of creating actual content.
* When anything goes wrong, e.g. found no record, or $set_name is not recognised, an exception will be thrown.
* And for this implementation, data are stored in a database therefore a PDO is needed. But the source can be any.
*
* \param $set_name Type: string. The name of set is going to be created.
* \param $key Type: string. The main identifier used in the system. There can be other identifiers.
*/
public function create_obj_node($set_name, $key)
{
$set_name = strtolower($set_name);
if (in_array($set_name, prepare_set_names())) {
try {
$query = "select * from oai_record where oai_identifier = '" . $key . "'";
$res = exec_pdo_query($this->db, $query);
$record = $res->fetch(PDO::FETCH_ASSOC);
foreach ($record as $rkey => $rvalue) {
if (!strncmp($rkey, 'dc_', 3)) {
$is_serialized = false;
$valArr = @unserialize(base64_decode($rvalue));
if ($valArr !== false) {
$is_serialized = true;
}
if ($is_serialized) {
foreach ($valArr as $vkey => $vvalue) {
// handle multi-dimensional arrays for combined multi-lang & simple multiplicity
if (is_array($vvalue)) {
foreach ($vvalue as $vkey2 => $vvalue2) {
$added_node = $this->oai_pmh->addChild($this->working_node, str_replace("dc_", "dc:", $rkey), $vvalue2);
// numeric vkeys show simple multiplicity
// string vkeys show multi-lang multiplicity requiring xml:lang attribute
if (!is_numeric($vkey2)) {
$added_node->setAttribute('xml:lang', $vkey2);
}
}
} else {
$added_node = $this->oai_pmh->addChild($this->working_node, str_replace("dc_", "dc:", $rkey), $vvalue);
// numeric vkeys show simple multiplicity
// string vkeys show multi-lang multiplicity requiring xml:lang attribute
if (!is_numeric($vkey)) {
$added_node->setAttribute('xml:lang', $vkey);
}
}
}
} else {
$this->oai_pmh->addChild($this->working_node, str_replace("dc_", "dc:", $rkey), $rvalue);
}
}
}
} catch (PDOException $e) {
echo "{$key} returned no record.\n";
echo $e->getMessage();
}
} else {
throw new Exception('Wrong set name was used: ' . $set_name);
}
}
/**
* This is the general entrence of creating actual content. It calls different functions for different type of RIF-CS model.
* When anything goes wrong, e.g. found no record, or $set_name is not recognised, an exception will be thrown.
* And for this implementation, data are stored in a database therefore a PDO is needed. But the source can be any.
*
* \param $set_name Type: string. The name of set is going to be created. Can be one of activity, collection or party.
* \param $key Type: string. The main identifier used in ANDS system. There can be other identifier.
*
* \see create_activity, create_collection, create_party
*/
function create_obj_node($set_name, $key)
{
$db = $this->db;
$set_name = strtolower($set_name);
if (in_array($set_name, prepare_set_names())) {
try {
// Get ori_id and which the original table is:
$query = "select ori_table_name, ori_id from oai_headers where oai_identifier = '" . $key . "'";
$res = exec_pdo_query($db, $query);
$record = $res->fetch(PDO::FETCH_ASSOC);
} catch (PDOException $e) {
echo "{$key} returned no record.\n";
echo $e->getMessage();
}
$processor = 'create_' . substr($set_name, 6);
$this->create_regObject(REG_OBJ_GROUP, $key, MY_URI);
$this->{$processor}($record['ori_table_name'], $record['ori_id']);
$this->create_identifier_node($key);
$this->create_identifier_node('table=' . $record['ori_table_name'] . '+id=' . $record['ori_id']);
} else {
throw new Exception('Wrong set name was used: ' . $set_name);
}
}
