public function assembleColumnName($tableAlias) {
$callback = new ColumnStatementCompositeEntityParser__TableAliasUpdater(NULL, $tableAlias, TRUE);
$parser = new FormulaExpressionParser(SQLFormulaExpressionHandler::LANGUAGE__SQL);
return $parser->parse($this->function, array($callback, 'updateTableAlias'));
}
public function replaceColumnNames(ParserCallback $callback, &$callerSession) {
$columnName = $callback->marker;
$column = $this->columnReferenceFactory->getColumn($columnName);
$this->approveColumn4ParticipationInExpression($column);
if ($column->persistence == FormulaMetaData::PERSISTENCE__CALCULATED) {
// checking if the column is already in the stack
if (in_array($column->name, $this->columnAssemblingStack)) {
$columnPublicNames = NULL;
// adding columns from stack
foreach ($this->columnAssemblingStack as $stackColumnName) {
$stackColumn = $this->dataset->getColumn($stackColumnName);
$columnPublicNames[] = $stackColumn->publicName;
}
// adding current processed column
$columnPublicNames[] = $column->publicName;
throw new IllegalStateException(t(
'Circular reference in formula expression is not allowed: %stack',
array('%stack' => ArrayHelper::serialize($columnPublicNames, ', ', TRUE, FALSE))));
}
array_push($this->columnAssemblingStack, $column->name);
$language = isset($column->expressionLanguage) ? $column->expressionLanguage : NULL;
$parser = new FormulaExpressionParser($language);
$expression = $parser->expressionLanguageHandler->clean($column->source);
$callback->marker = $parser->parse($expression, array($this, 'replaceColumnNames'));
array_pop($this->columnAssemblingStack);
$callback->removeDelimiters = TRUE;
}
}
public static function cleanFunctionParameters($datasetName, $columns, $parameters, $orderBy, array $options = NULL) {
$metamodel = data_controller_get_metamodel();
$dataset = $metamodel->getDataset($datasetName);
$cleanedColumns = ArrayHelper::trim($columns);
$cleanedParameters = NULL;
if (isset($parameters)) {
foreach ($parameters as $key => $value) {
$key = StringHelper::trim($key);
// ignoring system parameters
list($elementNameSpace) = AbstractDatasetUIMetaDataGenerator::splitElementUIMetaDataName($key);
if (!isset($elementNameSpace)) {
continue;
}
$cleanedParameters[$key] = $value;
}
}
$cleanedOrderBy = NULL;
ArrayHelper::addUniqueValues($cleanedOrderBy, ArrayHelper::trim($orderBy));
$cleanedOptions = NULL;
if (isset($options)) {
foreach ($options as $name => $option) {
$cleanedOption = NULL;
if (isset($option)) {
if ($name == AbstractQueryRequest::OPTION__FORMULA_DEF) {
// cleaning all formulas
foreach ($option as $index => $formula) {
$cleanedFormula = clone $formula;
$parser = new FormulaExpressionParser($cleanedFormula->expressionLanguage);
$cleanedFormula->source = $parser->parse($cleanedFormula->source, 'DatasetUIMetaDataQueryHelper::cleanFormulaExpressionColumnNames');
$cleanedOption[$index] = $cleanedFormula;
}
// assembling clean formulas to calculate 'measure' flag
if (isset($cleanedOption)) {
$columnReferenceFactory = new CompositeColumnReferenceFactory(array(
$dataset,
new FormulaReferenceFactory($cleanedOption)));
$expressionAssembler = new FormulaExpressionAssembler($columnReferenceFactory);
foreach ($cleanedOption as $index => $cleanedFormula) {
// assembling full expressions to detect if any aggregation function present
$expression = $expressionAssembler->assemble($cleanedFormula);
// process the formula expression
$handler = FormulaExpressionLanguageFactory::getInstance()->getHandler($cleanedFormula->expressionLanguage);
$lexemes = $handler->lex($expression);
$syntaxTree = $handler->parse($lexemes);
// checking if the formula expression contains references to any aggregation functions
$cleanedFormula->isMeasure = $handler->isMeasure($syntaxTree);
}
}
}
elseif (is_array($option)) {
$cleanedOption = ArrayHelper::copy($option);
}
elseif (is_object($option)) {
$cleanedOption = clone $option;
}
else {
$cleanedOption = $option;
}
}
if (isset($cleanedOption)) {
$cleanedOptions[$name] = $cleanedOption;
}
}
}
// adjusting list of columns we need to return
$requestedColumnNames = NULL;
// preparing list of unique column names
ArrayHelper::addUniqueValues($requestedColumnNames, $cleanedColumns);
// adding columns which are used to sort result
if ($cleanedOrderBy) {
foreach ($cleanedOrderBy as $directionalColumnName) {
list($columnName, $isSortAscending) = ColumnBasedComparator_AbstractSortingConfiguration::parseDirectionalColumnName($directionalColumnName);
ArrayHelper::addUniqueValue($requestedColumnNames, $columnName);
}
}
return array($requestedColumnNames, $cleanedParameters, $cleanedOrderBy, $cleanedOptions);
}
public function assemble(Statement $statement, $useTableNameAsAlias) {
$callback = new ColumnStatementCompositeEntityParser__ColumnNameAdjuster(TRUE);
$parser = new FormulaExpressionParser(SQLFormulaExpressionHandler::LANGUAGE__SQL);
return $parser->parse($this->value, array($callback, 'adjustCallbackObject'));
}
