PHP Topic::InstantiateDbRow方法代码示例

 /**
  * Instantiate an array of Topics from a Database Result
  * @param DatabaseResultBase $objDbResult
  * @param string $strExpandAsArrayNodes
  * @param string[] $strColumnAliasArray
  * @return Topic[]
  */
 public static function InstantiateDbResult(QDatabaseResultBase $objDbResult, $strExpandAsArrayNodes = null, $strColumnAliasArray = null)
 {
     $objToReturn = array();
     if (!$strColumnAliasArray) {
         $strColumnAliasArray = array();
     }
     // If blank resultset, then return empty array
     if (!$objDbResult) {
         return $objToReturn;
     }
     // Load up the return array with each row
     if ($strExpandAsArrayNodes) {
         $objLastRowItem = null;
         while ($objDbRow = $objDbResult->GetNextRow()) {
             $objItem = Topic::InstantiateDbRow($objDbRow, null, $strExpandAsArrayNodes, $objLastRowItem, $strColumnAliasArray);
             if ($objItem) {
                 $objToReturn[] = $objItem;
                 $objLastRowItem = $objItem;
             }
         }
     } else {
         while ($objDbRow = $objDbResult->GetNextRow()) {
             $objToReturn[] = Topic::InstantiateDbRow($objDbRow, null, null, null, $strColumnAliasArray);
         }
     }
     return $objToReturn;
 }

 /**
  * Instantiate a Message from a Database Row.
  * Takes in an optional strAliasPrefix, used in case another Object::InstantiateDbRow
  * is calling this Message::InstantiateDbRow in order to perform
  * early binding on referenced objects.
  * @param DatabaseRowBase $objDbRow
  * @param string $strAliasPrefix
  * @param string $strExpandAsArrayNodes
  * @param QBaseClass $objPreviousItem
  * @param string[] $strColumnAliasArray
  * @return Message
  */
 public static function InstantiateDbRow($objDbRow, $strAliasPrefix = null, $strExpandAsArrayNodes = null, $objPreviousItem = null, $strColumnAliasArray = array())
 {
     // If blank row, return null
     if (!$objDbRow) {
         return null;
     }
     // Create a new instance of the Message object
     $objToReturn = new Message();
     $objToReturn->__blnRestored = true;
     $strAliasName = array_key_exists($strAliasPrefix . 'id', $strColumnAliasArray) ? $strColumnAliasArray[$strAliasPrefix . 'id'] : $strAliasPrefix . 'id';
     $objToReturn->intId = $objDbRow->GetColumn($strAliasName, 'Integer');
     $strAliasName = array_key_exists($strAliasPrefix . 'topic_id', $strColumnAliasArray) ? $strColumnAliasArray[$strAliasPrefix . 'topic_id'] : $strAliasPrefix . 'topic_id';
     $objToReturn->intTopicId = $objDbRow->GetColumn($strAliasName, 'Integer');
     $strAliasName = array_key_exists($strAliasPrefix . 'topic_link_id', $strColumnAliasArray) ? $strColumnAliasArray[$strAliasPrefix . 'topic_link_id'] : $strAliasPrefix . 'topic_link_id';
     $objToReturn->intTopicLinkId = $objDbRow->GetColumn($strAliasName, 'Integer');
     $strAliasName = array_key_exists($strAliasPrefix . 'person_id', $strColumnAliasArray) ? $strColumnAliasArray[$strAliasPrefix . 'person_id'] : $strAliasPrefix . 'person_id';
     $objToReturn->intPersonId = $objDbRow->GetColumn($strAliasName, 'Integer');
     $strAliasName = array_key_exists($strAliasPrefix . 'message', $strColumnAliasArray) ? $strColumnAliasArray[$strAliasPrefix . 'message'] : $strAliasPrefix . 'message';
     $objToReturn->strMessage = $objDbRow->GetColumn($strAliasName, 'Blob');
     $strAliasName = array_key_exists($strAliasPrefix . 'compiled_html', $strColumnAliasArray) ? $strColumnAliasArray[$strAliasPrefix . 'compiled_html'] : $strAliasPrefix . 'compiled_html';
     $objToReturn->strCompiledHtml = $objDbRow->GetColumn($strAliasName, 'Blob');
     $strAliasName = array_key_exists($strAliasPrefix . 'reply_number', $strColumnAliasArray) ? $strColumnAliasArray[$strAliasPrefix . 'reply_number'] : $strAliasPrefix . 'reply_number';
     $objToReturn->intReplyNumber = $objDbRow->GetColumn($strAliasName, 'Integer');
     $strAliasName = array_key_exists($strAliasPrefix . 'post_date', $strColumnAliasArray) ? $strColumnAliasArray[$strAliasPrefix . 'post_date'] : $strAliasPrefix . 'post_date';
     $objToReturn->dttPostDate = $objDbRow->GetColumn($strAliasName, 'DateTime');
     // Instantiate Virtual Attributes
     foreach ($objDbRow->GetColumnNameArray() as $strColumnName => $mixValue) {
         $strVirtualPrefix = $strAliasPrefix . '__';
         $strVirtualPrefixLength = strlen($strVirtualPrefix);
         if (substr($strColumnName, 0, $strVirtualPrefixLength) == $strVirtualPrefix) {
             $objToReturn->__strVirtualAttributeArray[substr($strColumnName, $strVirtualPrefixLength)] = $mixValue;
         }
     }
     // Prepare to Check for Early/Virtual Binding
     if (!$strAliasPrefix) {
         $strAliasPrefix = 'message__';
     }
     // Check for Topic Early Binding
     $strAlias = $strAliasPrefix . 'topic_id__id';
     $strAliasName = array_key_exists($strAlias, $strColumnAliasArray) ? $strColumnAliasArray[$strAlias] : $strAlias;
     if (!is_null($objDbRow->GetColumn($strAliasName))) {
         $objToReturn->objTopic = Topic::InstantiateDbRow($objDbRow, $strAliasPrefix . 'topic_id__', $strExpandAsArrayNodes, null, $strColumnAliasArray);
     }
     // Check for TopicLink Early Binding
     $strAlias = $strAliasPrefix . 'topic_link_id__id';
     $strAliasName = array_key_exists($strAlias, $strColumnAliasArray) ? $strColumnAliasArray[$strAlias] : $strAlias;
     if (!is_null($objDbRow->GetColumn($strAliasName))) {
         $objToReturn->objTopicLink = TopicLink::InstantiateDbRow($objDbRow, $strAliasPrefix . 'topic_link_id__', $strExpandAsArrayNodes, null, $strColumnAliasArray);
     }
     // Check for Person Early Binding
     $strAlias = $strAliasPrefix . 'person_id__id';
     $strAliasName = array_key_exists($strAlias, $strColumnAliasArray) ? $strColumnAliasArray[$strAlias] : $strAlias;
     if (!is_null($objDbRow->GetColumn($strAliasName))) {
         $objToReturn->objPerson = Person::InstantiateDbRow($objDbRow, $strAliasPrefix . 'person_id__', $strExpandAsArrayNodes, null, $strColumnAliasArray);
     }
     return $objToReturn;
 }

 /**
  * Instantiate a Person from a Database Row.
  * Takes in an optional strAliasPrefix, used in case another Object::InstantiateDbRow
  * is calling this Person::InstantiateDbRow in order to perform
  * early binding on referenced objects.
  * @param QDatabaseRowBase $objDbRow
  * @param string $strAliasPrefix
  * @param string $strExpandAsArrayNodes
  * @param QBaseClass $objPreviousItem
  * @param string[] $strColumnAliasArray
  * @return Person
  */
 public static function InstantiateDbRow($objDbRow, $strAliasPrefix = null, $strExpandAsArrayNodes = null, $objPreviousItem = null, $strColumnAliasArray = array())
 {
     // If blank row, return null
     if (!$objDbRow) {
         return null;
     }
     // See if we're doing an array expansion on the previous item
     $strAlias = $strAliasPrefix . 'id';
     $strAliasName = array_key_exists($strAlias, $strColumnAliasArray) ? $strColumnAliasArray[$strAlias] : $strAlias;
     if ($strExpandAsArrayNodes && $objPreviousItem && $objPreviousItem->intId == $objDbRow->GetColumn($strAliasName, 'Integer')) {
         // We are.  Now, prepare to check for ExpandAsArray clauses
         $blnExpandedViaArray = false;
         if (!$strAliasPrefix) {
             $strAliasPrefix = 'person__';
         }
         $strAlias = $strAliasPrefix . 'topicasemail__topic_id__id';
         $strAliasName = array_key_exists($strAlias, $strColumnAliasArray) ? $strColumnAliasArray[$strAlias] : $strAlias;
         if (array_key_exists($strAlias, $strExpandAsArrayNodes) && !is_null($objDbRow->GetColumn($strAliasName))) {
             if ($intPreviousChildItemCount = count($objPreviousItem->_objTopicAsEmailArray)) {
                 $objPreviousChildItem = $objPreviousItem->_objTopicAsEmailArray[$intPreviousChildItemCount - 1];
                 $objChildItem = Topic::InstantiateDbRow($objDbRow, $strAliasPrefix . 'topicasemail__topic_id__', $strExpandAsArrayNodes, $objPreviousChildItem, $strColumnAliasArray);
                 if ($objChildItem) {
                     $objPreviousItem->_objTopicAsEmailArray[] = $objChildItem;
                 }
             } else {
                 $objPreviousItem->_objTopicAsEmailArray[] = Topic::InstantiateDbRow($objDbRow, $strAliasPrefix . 'topicasemail__topic_id__', $strExpandAsArrayNodes, null, $strColumnAliasArray);
             }
             $blnExpandedViaArray = true;
         }
         $strAlias = $strAliasPrefix . 'topicasreadonce__topic_id__id';
         $strAliasName = array_key_exists($strAlias, $strColumnAliasArray) ? $strColumnAliasArray[$strAlias] : $strAlias;
         if (array_key_exists($strAlias, $strExpandAsArrayNodes) && !is_null($objDbRow->GetColumn($strAliasName))) {
             if ($intPreviousChildItemCount = count($objPreviousItem->_objTopicAsReadOnceArray)) {
                 $objPreviousChildItem = $objPreviousItem->_objTopicAsReadOnceArray[$intPreviousChildItemCount - 1];
                 $objChildItem = Topic::InstantiateDbRow($objDbRow, $strAliasPrefix . 'topicasreadonce__topic_id__', $strExpandAsArrayNodes, $objPreviousChildItem, $strColumnAliasArray);
                 if ($objChildItem) {
                     $objPreviousItem->_objTopicAsReadOnceArray[] = $objChildItem;
                 }
             } else {
                 $objPreviousItem->_objTopicAsReadOnceArray[] = Topic::InstantiateDbRow($objDbRow, $strAliasPrefix . 'topicasreadonce__topic_id__', $strExpandAsArrayNodes, null, $strColumnAliasArray);
             }
             $blnExpandedViaArray = true;
         }
         $strAlias = $strAliasPrefix . 'topicasread__topic_id__id';
         $strAliasName = array_key_exists($strAlias, $strColumnAliasArray) ? $strColumnAliasArray[$strAlias] : $strAlias;
         if (array_key_exists($strAlias, $strExpandAsArrayNodes) && !is_null($objDbRow->GetColumn($strAliasName))) {
             if ($intPreviousChildItemCount = count($objPreviousItem->_objTopicAsReadArray)) {
                 $objPreviousChildItem = $objPreviousItem->_objTopicAsReadArray[$intPreviousChildItemCount - 1];
                 $objChildItem = Topic::InstantiateDbRow($objDbRow, $strAliasPrefix . 'topicasread__topic_id__', $strExpandAsArrayNodes, $objPreviousChildItem, $strColumnAliasArray);
                 if ($objChildItem) {
                     $objPreviousItem->_objTopicAsReadArray[] = $objChildItem;
                 }
             } else {
                 $objPreviousItem->_objTopicAsReadArray[] = Topic::InstantiateDbRow($objDbRow, $strAliasPrefix . 'topicasread__topic_id__', $strExpandAsArrayNodes, null, $strColumnAliasArray);
             }
             $blnExpandedViaArray = true;
         }
         $strAlias = $strAliasPrefix . 'issueaspostedby__id';
         $strAliasName = array_key_exists($strAlias, $strColumnAliasArray) ? $strColumnAliasArray[$strAlias] : $strAlias;
         if (array_key_exists($strAlias, $strExpandAsArrayNodes) && !is_null($objDbRow->GetColumn($strAliasName))) {
             if ($intPreviousChildItemCount = count($objPreviousItem->_objIssueAsPostedByArray)) {
                 $objPreviousChildItem = $objPreviousItem->_objIssueAsPostedByArray[$intPreviousChildItemCount - 1];
                 $objChildItem = Issue::InstantiateDbRow($objDbRow, $strAliasPrefix . 'issueaspostedby__', $strExpandAsArrayNodes, $objPreviousChildItem, $strColumnAliasArray);
                 if ($objChildItem) {
                     $objPreviousItem->_objIssueAsPostedByArray[] = $objChildItem;
                 }
             } else {
                 $objPreviousItem->_objIssueAsPostedByArray[] = Issue::InstantiateDbRow($objDbRow, $strAliasPrefix . 'issueaspostedby__', $strExpandAsArrayNodes, null, $strColumnAliasArray);
             }
             $blnExpandedViaArray = true;
         }
         $strAlias = $strAliasPrefix . 'issueasassignedto__id';
         $strAliasName = array_key_exists($strAlias, $strColumnAliasArray) ? $strColumnAliasArray[$strAlias] : $strAlias;
         if (array_key_exists($strAlias, $strExpandAsArrayNodes) && !is_null($objDbRow->GetColumn($strAliasName))) {
             if ($intPreviousChildItemCount = count($objPreviousItem->_objIssueAsAssignedToArray)) {
                 $objPreviousChildItem = $objPreviousItem->_objIssueAsAssignedToArray[$intPreviousChildItemCount - 1];
                 $objChildItem = Issue::InstantiateDbRow($objDbRow, $strAliasPrefix . 'issueasassignedto__', $strExpandAsArrayNodes, $objPreviousChildItem, $strColumnAliasArray);
                 if ($objChildItem) {
                     $objPreviousItem->_objIssueAsAssignedToArray[] = $objChildItem;
                 }
             } else {
                 $objPreviousItem->_objIssueAsAssignedToArray[] = Issue::InstantiateDbRow($objDbRow, $strAliasPrefix . 'issueasassignedto__', $strExpandAsArrayNodes, null, $strColumnAliasArray);
             }
             $blnExpandedViaArray = true;
         }
         $strAlias = $strAliasPrefix . 'issuevote__id';
         $strAliasName = array_key_exists($strAlias, $strColumnAliasArray) ? $strColumnAliasArray[$strAlias] : $strAlias;
         if (array_key_exists($strAlias, $strExpandAsArrayNodes) && !is_null($objDbRow->GetColumn($strAliasName))) {
//.........这里部分代码省略.........

 /**
  * Instantiate a TopicLink from a Database Row.
  * Takes in an optional strAliasPrefix, used in case another Object::InstantiateDbRow
  * is calling this TopicLink::InstantiateDbRow in order to perform
  * early binding on referenced objects.
  * @param QDatabaseRowBase $objDbRow
  * @param string $strAliasPrefix
  * @param string $strExpandAsArrayNodes
  * @param QBaseClass $objPreviousItem
  * @param string[] $strColumnAliasArray
  * @return TopicLink
  */
 public static function InstantiateDbRow($objDbRow, $strAliasPrefix = null, $strExpandAsArrayNodes = null, $objPreviousItem = null, $strColumnAliasArray = array())
 {
     // If blank row, return null
     if (!$objDbRow) {
         return null;
     }
     // See if we're doing an array expansion on the previous item
     $strAlias = $strAliasPrefix . 'id';
     $strAliasName = array_key_exists($strAlias, $strColumnAliasArray) ? $strColumnAliasArray[$strAlias] : $strAlias;
     if ($strExpandAsArrayNodes && $objPreviousItem && $objPreviousItem->intId == $objDbRow->GetColumn($strAliasName, 'Integer')) {
         // We are.  Now, prepare to check for ExpandAsArray clauses
         $blnExpandedViaArray = false;
         if (!$strAliasPrefix) {
             $strAliasPrefix = 'topic_link__';
         }
         $strAlias = $strAliasPrefix . 'message__id';
         $strAliasName = array_key_exists($strAlias, $strColumnAliasArray) ? $strColumnAliasArray[$strAlias] : $strAlias;
         if (array_key_exists($strAlias, $strExpandAsArrayNodes) && !is_null($objDbRow->GetColumn($strAliasName))) {
             if ($intPreviousChildItemCount = count($objPreviousItem->_objMessageArray)) {
                 $objPreviousChildItem = $objPreviousItem->_objMessageArray[$intPreviousChildItemCount - 1];
                 $objChildItem = Message::InstantiateDbRow($objDbRow, $strAliasPrefix . 'message__', $strExpandAsArrayNodes, $objPreviousChildItem, $strColumnAliasArray);
                 if ($objChildItem) {
                     $objPreviousItem->_objMessageArray[] = $objChildItem;
                 }
             } else {
                 $objPreviousItem->_objMessageArray[] = Message::InstantiateDbRow($objDbRow, $strAliasPrefix . 'message__', $strExpandAsArrayNodes, null, $strColumnAliasArray);
             }
             $blnExpandedViaArray = true;
         }
         $strAlias = $strAliasPrefix . 'topic__id';
         $strAliasName = array_key_exists($strAlias, $strColumnAliasArray) ? $strColumnAliasArray[$strAlias] : $strAlias;
         if (array_key_exists($strAlias, $strExpandAsArrayNodes) && !is_null($objDbRow->GetColumn($strAliasName))) {
             if ($intPreviousChildItemCount = count($objPreviousItem->_objTopicArray)) {
                 $objPreviousChildItem = $objPreviousItem->_objTopicArray[$intPreviousChildItemCount - 1];
                 $objChildItem = Topic::InstantiateDbRow($objDbRow, $strAliasPrefix . 'topic__', $strExpandAsArrayNodes, $objPreviousChildItem, $strColumnAliasArray);
                 if ($objChildItem) {
                     $objPreviousItem->_objTopicArray[] = $objChildItem;
                 }
             } else {
                 $objPreviousItem->_objTopicArray[] = Topic::InstantiateDbRow($objDbRow, $strAliasPrefix . 'topic__', $strExpandAsArrayNodes, null, $strColumnAliasArray);
             }
             $blnExpandedViaArray = true;
         }
         // Either return false to signal array expansion, or check-to-reset the Alias prefix and move on
         if ($blnExpandedViaArray) {
             return false;
         } else {
             if ($strAliasPrefix == 'topic_link__') {
                 $strAliasPrefix = null;
             }
         }
     }
     // Create a new instance of the TopicLink object
     $objToReturn = new TopicLink();
     $objToReturn->__blnRestored = true;
     $strAliasName = array_key_exists($strAliasPrefix . 'id', $strColumnAliasArray) ? $strColumnAliasArray[$strAliasPrefix . 'id'] : $strAliasPrefix . 'id';
     $objToReturn->intId = $objDbRow->GetColumn($strAliasName, 'Integer');
     $strAliasName = array_key_exists($strAliasPrefix . 'topic_link_type_id', $strColumnAliasArray) ? $strColumnAliasArray[$strAliasPrefix . 'topic_link_type_id'] : $strAliasPrefix . 'topic_link_type_id';
     $objToReturn->intTopicLinkTypeId = $objDbRow->GetColumn($strAliasName, 'Integer');
     $strAliasName = array_key_exists($strAliasPrefix . 'topic_count', $strColumnAliasArray) ? $strColumnAliasArray[$strAliasPrefix . 'topic_count'] : $strAliasPrefix . 'topic_count';
     $objToReturn->intTopicCount = $objDbRow->GetColumn($strAliasName, 'Integer');
     $strAliasName = array_key_exists($strAliasPrefix . 'message_count', $strColumnAliasArray) ? $strColumnAliasArray[$strAliasPrefix . 'message_count'] : $strAliasPrefix . 'message_count';
     $objToReturn->intMessageCount = $objDbRow->GetColumn($strAliasName, 'Integer');
     $strAliasName = array_key_exists($strAliasPrefix . 'last_post_date', $strColumnAliasArray) ? $strColumnAliasArray[$strAliasPrefix . 'last_post_date'] : $strAliasPrefix . 'last_post_date';
     $objToReturn->dttLastPostDate = $objDbRow->GetColumn($strAliasName, 'DateTime');
     $strAliasName = array_key_exists($strAliasPrefix . 'forum_id', $strColumnAliasArray) ? $strColumnAliasArray[$strAliasPrefix . 'forum_id'] : $strAliasPrefix . 'forum_id';
     $objToReturn->intForumId = $objDbRow->GetColumn($strAliasName, 'Integer');
     $strAliasName = array_key_exists($strAliasPrefix . 'issue_id', $strColumnAliasArray) ? $strColumnAliasArray[$strAliasPrefix . 'issue_id'] : $strAliasPrefix . 'issue_id';
     $objToReturn->intIssueId = $objDbRow->GetColumn($strAliasName, 'Integer');
     $strAliasName = array_key_exists($strAliasPrefix . 'wiki_item_id', $strColumnAliasArray) ? $strColumnAliasArray[$strAliasPrefix . 'wiki_item_id'] : $strAliasPrefix . 'wiki_item_id';
     $objToReturn->intWikiItemId = $objDbRow->GetColumn($strAliasName, 'Integer');
     $strAliasName = array_key_exists($strAliasPrefix . 'package_id', $strColumnAliasArray) ? $strColumnAliasArray[$strAliasPrefix . 'package_id'] : $strAliasPrefix . 'package_id';
     $objToReturn->intPackageId = $objDbRow->GetColumn($strAliasName, 'Integer');
     // Instantiate Virtual Attributes
     foreach ($objDbRow->GetColumnNameArray() as $strColumnName => $mixValue) {
         $strVirtualPrefix = $strAliasPrefix . '__';
         $strVirtualPrefixLength = strlen($strVirtualPrefix);
         if (substr($strColumnName, 0, $strVirtualPrefixLength) == $strVirtualPrefix) {
             $objToReturn->__strVirtualAttributeArray[substr($strColumnName, $strVirtualPrefixLength)] = $mixValue;
         }
     }
     // Prepare to Check for Early/Virtual Binding
     if (!$strAliasPrefix) {
         $strAliasPrefix = 'topic_link__';
     }
     // Check for Forum Early Binding
     $strAlias = $strAliasPrefix . 'forum_id__id';
     $strAliasName = array_key_exists($strAlias, $strColumnAliasArray) ? $strColumnAliasArray[$strAlias] : $strAlias;
//.........这里部分代码省略.........

 /**
  * Searches using the search index for applicable topics, and returns topics as an array
  * Note that this will return ALL topics for the search.  No limit / pagination can be applied.
  * @param string $strSearchQuery
  * @return Topic[]
  */
 public static function LoadArrayBySearch($strSearchQuery)
 {
     // open the index
     $objIndex = new Zend_Search_Lucene(__SEARCH_INDEXES__ . '/topics');
     $intIdArray = array();
     $objHits = $objIndex->find($strSearchQuery);
     if (!count($objHits)) {
         return array();
     }
     foreach ($objHits as $objHit) {
         $intIdArray[] = $objHit->db_id;
         // note: do we want to do anything with $objHit->score (?)
     }
     $objResult = Topic::GetDatabase()->Query('SELECT * FROM topic WHERE id IN(' . implode(',', $intIdArray) . ');');
     while ($objRow = $objResult->GetNextRow()) {
         $objTopic = Topic::InstantiateDbRow($objRow);
         $objTopicArrayById[$objTopic->Id] = $objTopic;
     }
     $objTopicArray = array();
     foreach ($objHits as $objHit) {
         $objTopicArray[] = $objTopicArrayById[intval($objHit->db_id)];
     }
     return $objTopicArray;
 }

 /**
  * Instantiate a single Topic object from a query cursor (e.g. a DB ResultSet).
  * Cursor is automatically moved to the "next row" of the result set.
  * Will return NULL if no cursor or if the cursor has no more rows in the resultset.
  * @param QDatabaseResultBase $objDbResult cursor resource
  * @return Topic next row resulting from the query
  */
 public static function InstantiateCursor(QDatabaseResultBase $objDbResult)
 {
     // If blank resultset, then return empty result
     if (!$objDbResult) {
         return null;
     }
     // If empty resultset, then return empty result
     $objDbRow = $objDbResult->GetNextRow();
     if (!$objDbRow) {
         return null;
     }
     // We need the Column Aliases
     $strColumnAliasArray = $objDbResult->QueryBuilder->ColumnAliasArray;
     if (!$strColumnAliasArray) {
         $strColumnAliasArray = array();
     }
     // Pull Expansions (if applicable)
     $strExpandAsArrayNodes = $objDbResult->QueryBuilder->ExpandAsArrayNodes;
     // Load up the return result with a row and return it
     return Topic::InstantiateDbRow($objDbRow, null, $strExpandAsArrayNodes, null, $strColumnAliasArray);
 }