/** * Instantiate a single QueryNode 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 QueryNode 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 = $objDbResult->QueryBuilder->ExpandAsArrayNodes; // Load up the return result with a row and return it return QueryNode::InstantiateDbRow($objDbRow, null, $strExpandAsArrayNodes, null, $strColumnAliasArray); }
/** * Instantiate a QueryCondition from a Database Row. * Takes in an optional strAliasPrefix, used in case another Object::InstantiateDbRow * is calling this QueryCondition::InstantiateDbRow in order to perform * early binding on referenced objects. * @param QDatabaseRowBase $objDbRow * @param string $strAliasPrefix * @param string $strExpandAsArrayNodes * @param QBaseClass $objPreviousItem * @param string[] $strColumnAliasArray * @return QueryCondition */ public static function InstantiateDbRow($objDbRow, $strAliasPrefix = null, $strExpandAsArrayNodes = null, $objPreviousItem = null, $strColumnAliasArray = array()) { // If blank row, return null if (!$objDbRow) { return null; } // Create a new instance of the QueryCondition object $objToReturn = new QueryCondition(); $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 . 'search_query_id', $strColumnAliasArray) ? $strColumnAliasArray[$strAliasPrefix . 'search_query_id'] : $strAliasPrefix . 'search_query_id'; $objToReturn->intSearchQueryId = $objDbRow->GetColumn($strAliasName, 'Integer'); $strAliasName = array_key_exists($strAliasPrefix . 'or_query_condition_id', $strColumnAliasArray) ? $strColumnAliasArray[$strAliasPrefix . 'or_query_condition_id'] : $strAliasPrefix . 'or_query_condition_id'; $objToReturn->intOrQueryConditionId = $objDbRow->GetColumn($strAliasName, 'Integer'); $strAliasName = array_key_exists($strAliasPrefix . 'query_operation_id', $strColumnAliasArray) ? $strColumnAliasArray[$strAliasPrefix . 'query_operation_id'] : $strAliasPrefix . 'query_operation_id'; $objToReturn->intQueryOperationId = $objDbRow->GetColumn($strAliasName, 'Integer'); $strAliasName = array_key_exists($strAliasPrefix . 'query_node_id', $strColumnAliasArray) ? $strColumnAliasArray[$strAliasPrefix . 'query_node_id'] : $strAliasPrefix . 'query_node_id'; $objToReturn->intQueryNodeId = $objDbRow->GetColumn($strAliasName, 'Integer'); $strAliasName = array_key_exists($strAliasPrefix . 'value', $strColumnAliasArray) ? $strColumnAliasArray[$strAliasPrefix . 'value'] : $strAliasPrefix . 'value'; $objToReturn->strValue = $objDbRow->GetColumn($strAliasName, 'VarChar'); // 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 = 'query_condition__'; } // Check for SearchQuery Early Binding $strAlias = $strAliasPrefix . 'search_query_id__id'; $strAliasName = array_key_exists($strAlias, $strColumnAliasArray) ? $strColumnAliasArray[$strAlias] : $strAlias; if (!is_null($objDbRow->GetColumn($strAliasName))) { $objToReturn->objSearchQuery = SearchQuery::InstantiateDbRow($objDbRow, $strAliasPrefix . 'search_query_id__', $strExpandAsArrayNodes, null, $strColumnAliasArray); } // Check for OrQueryCondition Early Binding $strAlias = $strAliasPrefix . 'or_query_condition_id__id'; $strAliasName = array_key_exists($strAlias, $strColumnAliasArray) ? $strColumnAliasArray[$strAlias] : $strAlias; if (!is_null($objDbRow->GetColumn($strAliasName))) { $objToReturn->objOrQueryCondition = QueryCondition::InstantiateDbRow($objDbRow, $strAliasPrefix . 'or_query_condition_id__', $strExpandAsArrayNodes, null, $strColumnAliasArray); } // Check for QueryOperation Early Binding $strAlias = $strAliasPrefix . 'query_operation_id__id'; $strAliasName = array_key_exists($strAlias, $strColumnAliasArray) ? $strColumnAliasArray[$strAlias] : $strAlias; if (!is_null($objDbRow->GetColumn($strAliasName))) { $objToReturn->objQueryOperation = QueryOperation::InstantiateDbRow($objDbRow, $strAliasPrefix . 'query_operation_id__', $strExpandAsArrayNodes, null, $strColumnAliasArray); } // Check for QueryNode Early Binding $strAlias = $strAliasPrefix . 'query_node_id__id'; $strAliasName = array_key_exists($strAlias, $strColumnAliasArray) ? $strColumnAliasArray[$strAlias] : $strAlias; if (!is_null($objDbRow->GetColumn($strAliasName))) { $objToReturn->objQueryNode = QueryNode::InstantiateDbRow($objDbRow, $strAliasPrefix . 'query_node_id__', $strExpandAsArrayNodes, null, $strColumnAliasArray); } // Check for QueryConditionAsOr Unique ReverseReference Binding $strAlias = $strAliasPrefix . 'queryconditionasor__id'; $strAliasName = array_key_exists($strAlias, $strColumnAliasArray) ? $strColumnAliasArray[$strAlias] : $strAlias; if ($objDbRow->ColumnExists($strAliasName)) { if (!is_null($objDbRow->GetColumn($strAliasName))) { $objToReturn->objQueryConditionAsOr = QueryCondition::InstantiateDbRow($objDbRow, $strAliasPrefix . 'queryconditionasor__', $strExpandAsArrayNodes, null, $strColumnAliasArray); } else { // We ATTEMPTED to do an Early Bind but the Object Doesn't Exist // Let's set to FALSE so that the object knows not to try and re-query again $objToReturn->objQueryConditionAsOr = false; } } return $objToReturn; }