/**
* Returns change log for currently loaded row in displayable HTML format
*/
public function getChangeLogForDisplay($ps_css_id = null)
{
$o_log = new ApplicationChangeLog();
return $o_log->getChangeLogForRowForDisplay($this, $ps_css_id);
}
/**
*
*/
public function prefetchChangeLogData($ps_tablename, $pn_start, $pn_num_rows)
{
if (sizeof($va_row_ids = $this->getRowIDsToPrefetch($pn_start, $pn_num_rows)) == 0) {
return false;
}
$vs_key = caMakeCacheKeyFromOptions(array_merge($va_row_ids, array('_table' => $ps_tablename)));
if (self::$s_timestamp_cache['fetched'][$vs_key]) {
return true;
}
$o_log = new ApplicationChangeLog();
if (!is_array(self::$s_timestamp_cache['created_on'][$ps_tablename])) {
self::$s_timestamp_cache['created_on'][$ps_tablename] = array();
}
self::$s_timestamp_cache['created_on'][$ps_tablename] += $o_log->getCreatedOnTimestampsForIDs($ps_tablename, $va_row_ids);
if (!is_array(self::$s_timestamp_cache['last_changed'][$ps_tablename])) {
self::$s_timestamp_cache['last_changed'][$ps_tablename] = array();
}
self::$s_timestamp_cache['last_changed'][$ps_tablename] += $o_log->getLastChangeTimestampsForIDs($ps_tablename, $va_row_ids);
self::$s_timestamp_cache['fetched'][$vs_key] = true;
return true;
}
/**
* Responds to the two main List verbs, includes resumption and limiting.
*
* @param string $verb OAI-PMH verb for the request
* @param string $metadataPrefix Metadata prefix
* @param int $cursor Offset in response to begin output at
* @param mixed $set Optional set argument
* @param string $from Optional from date argument
* @param string $until Optional until date argument
* @uses createResumptionToken()
*/
private function listResponse($oaiData, $verb, $metadataPrefix, $cursor, $set, $from, $until)
{
$listLimit = $this->_listLimit;
$o_dm = Datamodel::load();
// by this point, the mapping code was checked to be valid
$t_instance = $o_dm->getInstanceByTableName($this->table, true);
$vs_pk = $t_instance->primaryKey();
$va_access_values = caGetUserAccessValues($this->opo_request, $this->opa_provider_info);
$vb_show_deleted = (bool) $this->opa_provider_info['show_deleted'];
$vb_dont_enforce_access_settings = (bool) $this->opa_provider_info['dont_enforce_access_settings'];
$vb_dont_cache = (bool) $this->opa_provider_info['dont_cache'];
$vs_table = $t_instance->tableName();
if (!($o_search = caGetSearchInstance($vs_table))) {
$this->throwError(self::OAI_ERR_BAD_ARGUMENT);
return;
}
// Construct date range for from/until if defined
$o_tep = new TimeExpressionParser();
$o_lang_settings = $o_tep->getLanguageSettings();
$vs_conj = array_shift($o_lang_settings->getList("rangeConjunctions"));
$vs_range = $from && $until ? "{$from} {$vs_conj} {$until}" : '';
if ($set && $this->opa_provider_info['setFacet']) {
$o_browse = caGetBrowseInstance($this->table);
if (($vs_query = $this->opa_provider_info['query']) && $vs_query != "*") {
$o_browse->addCriteria("_search", $vs_query);
}
$o_browse->addCriteria($this->opa_provider_info['setFacet'], $set);
$o_browse->execute(array('showDeleted' => $vb_show_deleted, 'no_cache' => $vb_dont_cache, 'limitToModifiedOn' => $vs_range, 'checkAccess' => $vb_dont_enforce_access_settings ? null : $va_access_values));
$qr_res = $o_browse->getResults();
} else {
$qr_res = $o_search->search(strlen($this->opa_provider_info['query']) ? $this->opa_provider_info['query'] : "*", array('no_cache' => $vb_dont_cache, 'limitToModifiedOn' => $vs_range, 'showDeleted' => $vb_show_deleted, 'checkAccess' => $vb_dont_enforce_access_settings ? null : $va_access_values));
}
if (!$qr_res) {
$this->throwError(self::OAI_ERR_NO_RECORDS_MATCH, _t('Query failed'));
return;
}
$rows = $qr_res->numHits();
if (count($qr_res->numHits()) == 0) {
$this->throwError(self::OAI_ERR_NO_RECORDS_MATCH, _t('No records match the given criteria'));
} else {
$verbElement = $oaiData->createElement($verb);
$oaiData->documentElement->appendChild($verbElement);
$t_change_log = new ApplicationChangeLog();
if ($vb_show_deleted) {
// get list of deleted records
$va_deleted_items = array();
$qr_res->seek($cursor);
$vn_c = 0;
$va_get_deleted_timestamps_for = array();
while ($qr_res->nextHit()) {
if ((bool) $qr_res->get("{$vs_table}.deleted")) {
$va_deleted_items[$vs_pk_val = (int) $qr_res->get("{$vs_table}.{$vs_pk}")] = true;
$va_get_deleted_timestamps_for[$vs_pk_val] = true;
} else {
$vn_access = (int) $qr_res->get("{$vs_table}.access");
if (!in_array($vn_access, $va_access_values)) {
$va_deleted_items[(int) $qr_res->get("{$vs_table}.{$vs_pk}")] = true;
}
}
$vn_c++;
if ($vn_c >= $listLimit) {
break;
}
}
$qr_res->seek(0);
$va_deleted_timestamps = $t_change_log->getDeleteOnTimestampsForIDs($vs_table, array_keys($va_get_deleted_timestamps_for));
}
// Export data using metadata mapping
$va_items = ca_data_exporters::exportRecordsFromSearchResultToArray($this->getMappingCode(), $qr_res, array('start' => $cursor, 'limit' => $listLimit));
if (is_array($va_items) && sizeof($va_items)) {
$va_timestamps = $t_change_log->getLastChangeTimestampsForIDs($vs_table, array_keys($va_items));
foreach ($va_items as $vn_id => $vs_item_xml) {
if ($vb_show_deleted && $va_deleted_items[$vn_id]) {
$headerData = array('identifier' => OaiIdentifier::itemToOaiId($vn_id), 'datestamp' => self::unixToUtc($va_deleted_timestamps[$vn_id]['timestamp'] ? $va_deleted_timestamps[$vn_id]['timestamp'] : $va_timestamps[$vn_id]['timestamp']));
if ($verb == 'ListIdentifiers') {
$header = $this->createElementWithChildren($oaiData, $verbElement, 'header', $headerData);
$header->setAttribute("status", "deleted");
} else {
$recordElement = $verbElement->appendChild($oaiData->createElement('record'));
$header = $this->createElementWithChildren($oaiData, $recordElement, 'header', $headerData);
$header->setAttribute("status", "deleted");
}
} else {
$headerData = array('identifier' => OaiIdentifier::itemToOaiId($vn_id), 'datestamp' => self::unixToUtc($va_timestamps[$vn_id]['timestamp']));
if ($verb == 'ListIdentifiers') {
$this->createElementWithChildren($oaiData, $verbElement, 'header', $headerData);
} else {
$recordElement = $verbElement->appendChild($oaiData->createElement('record'));
$this->createElementWithChildren($oaiData, $recordElement, 'header', $headerData);
$metadataElement = $oaiData->createElement('metadata');
$o_doc_src = DomDocument::loadXML($vs_item_xml);
if ($o_doc_src) {
// just in case the xml fails to load through DomDocument for some reason (e.g. a bad mapping or very weird characters)
$metadataElement->appendChild($oaiData->importNode($o_doc_src->documentElement, true));
}
$recordElement->appendChild($metadataElement);
}
}
}
}
if ($rows > $cursor + $listLimit) {
$token = $this->createResumptionToken($verb, $metadataPrefix, $cursor + $listLimit, $set, $from, $until);
$tokenElement = $oaiData->createElement('resumptionToken', $token['key']);
$tokenElement->setAttribute('expirationDate', self::unixToUtc($token['expiration']));
$tokenElement->setAttribute('completeListSize', $rows);
$tokenElement->setAttribute('cursor', $cursor);
$verbElement->appendChild($tokenElement);
} else {
if ($cursor != 0) {
$tokenElement = $this->oaiData->createElement('resumptionToken');
$verbElement->appendChild($tokenElement);
}
}
}
}
/**
*
*/
public function prefetchChangeLogData($ps_tablename, $pn_start, $pn_num_rows)
{
if (sizeof($va_row_ids = $this->getRowIDsToPrefetch($ps_tablename, $pn_start, $pn_num_rows)) == 0) {
return false;
}
$vs_key = md5($ps_tablename . '/' . print_r($va_row_ids, true));
if ($this->opa_timestamp_cache['fetched'][$vs_key]) {
return true;
}
$o_log = new ApplicationChangeLog();
if (!is_array($this->opa_timestamp_cache['created_on'][$ps_tablename])) {
$this->opa_timestamp_cache['created_on'][$ps_tablename] = array();
}
$this->opa_timestamp_cache['created_on'][$ps_tablename] += $o_log->getCreatedOnTimestampsForIDs($ps_tablename, $va_row_ids);
if (!is_array($this->opa_timestamp_cache['last_changed'][$ps_tablename])) {
$this->opa_timestamp_cache['last_changed'][$ps_tablename] = array();
}
$this->opa_timestamp_cache['last_changed'][$ps_tablename] += $o_log->getLastChangeTimestampsForIDs($ps_tablename, $va_row_ids);
$this->opa_timestamp_cache['fetched'][$vs_key] = true;
return true;
}
/**
*
*/
public function getDeletions()
{
//if (!is_object($t_entity = $this->_checkEntity())) { return $t_entity; }
//$vn_id = $t_entity->getPrimaryKey();
$t_object = new ca_objects();
//$va_data = array('id' => $vn_id);
$from = $this->opo_request->getParameter('from', pString);
$until = $this->opo_request->getParameter('until', pString);
if (!$until) {
$until = date('c');
}
$vs_range = $from && $until ? self::utcToDb($from) . ' to ' . self::utcToDb($until) : null;
$o_tep = new TimeExpressionParser();
$vb_parsed_date = false;
if ($vs_range) {
if ($vb_parsed_date = $o_tep->parse($vs_range)) {
$va_range = $o_tep->getUnixTimestamps();
}
}
$o_log = new ApplicationChangeLog();
// $va_log = $o_log->getChangeLogForRow($t_entity, array('range' => $va_range, 'changeType' => 'D'));
$va_log = $o_log->getDeletions('ca_objects', array('range' => $va_range));
$va_data['deletions'] = $va_log;
//
// foreach($va_log as $vs_key => $va_log_item) {
// foreach($va_log_item as $vn_i => $va_log) {
// if (!is_array($va_log['changes'])) { continue; }
// foreach($va_log['changes'] as $vn_j => $va_change) {
// $va_data[$va_change['table_name']][] = array(
// 'datetime' => $va_log['datetime'],
// 'row_id' => $va_change['row_id'],
// 'description' => $va_change['description'],
// 'idno' => $va_change['idno']
// );
// }
// }
// }
//
return $this->makeResponse($va_data);
}
/**
*
*/
public function getWatchedItems($pn_user_id, $pn_table_num = null)
{
require_once __CA_LIB_DIR__ . '/core/ApplicationChangeLog.php';
if (!$pn_user_id) {
return null;
}
$t_changelog = new ApplicationChangeLog();
$o_db = $this->getDb();
$o_dm = $this->getAppDatamodel();
$sql = "";
$va_items = array();
if ($pn_table_num) {
$sql = " AND table_num = {$pn_table_num}";
}
$q_watched_items = $o_db->query("\n\t\t\tSELECT watch_id, row_id, table_num \n\t\t\tFROM ca_watch_list \n\t\t\tWHERE \n\t\t\t\tuser_id = ? {$sql} \n\t\t\tORDER BY watch_id DESC", $pn_user_id);
if ($q_watched_items->numRows() > 0) {
while ($q_watched_items->nextRow()) {
$t_item_table = $o_dm->getInstanceByTableNum($q_watched_items->get("table_num"), true);
if ($t_item_table->hasField('deleted') && $t_item_table->get('deleted') == 1) {
continue;
}
$t_item_table->load($q_watched_items->get("row_id"));
$va_items[] = array("watch_id" => $q_watched_items->get("watch_id"), "row_id" => $q_watched_items->get("row_id"), "table_num" => $q_watched_items->get("table_num"), "table_name" => $t_item_table->TableName(), "displayName" => $t_item_table->getLabelForDisplay(), "idno" => $t_item_table->get("idno"), "item_type" => $t_item_table->getProperty('NAME_SINGULAR'), "primary_key" => $t_item_table->getPrimaryKey(), "change_log" => $t_changelog->getChangeLogForRowForDisplay($t_item_table));
}
}
return $va_items;
}
