protected function generateFunction($columnPrefix, ColumnMetaData $parentColumn, $configuration, $allowDate, $allowTime) {
if (($configuration['part'] == 'date') && !$allowDate) {
return;
}
if (($configuration['part'] == 'date:fiscal') && (!$allowDate || (FiscalYearConfiguration::$FIRST_MONTH == 1))) {
return;
}
if (($configuration['part'] == 'time') && !$allowTime) {
return;
}
// preparing extension for date value formatting
$key = $this->datasourceHandler->getDataSourceType();
if (!isset($this->dateFormatExtensions[$key])) {
$this->dateFormatExtensions[$key] = $this->datasourceHandler->getExtension('formatDateValue');
}
$dateFormatExtension = $this->dateFormatExtensions[$key];
// preparing expression for calculated column
$extensionMethodName = $configuration['methodName'];
try {
$expression = $dateFormatExtension->$extensionMethodName($this->datasourceHandler);
}
catch (UnsupportedOperationException $e) {
$expression = FALSE;
}
if ($expression === FALSE) {
$column = new ColumnMetaData();
$column->used = FALSE;
}
else {
$formulaExpressionParser = new FormulaExpressionParser(SQLFormulaExpressionHandler::LANGUAGE__SQL);
$column = new FormulaMetaData();
$column->type->applicationType = $configuration['datatype'];
$column->source = str_replace(
array('<columnName>', '<fiscalYearOffset>'),
array(
$formulaExpressionParser->assemble($columnPrefix),
(12 - FiscalYearConfiguration::$FIRST_MONTH + 1)),
$expression);
}
$column->name = $columnPrefix . '__' . $configuration['name'];
$column->publicName = t($configuration['publicName']);
$column->loaderName = get_class($this);
// processing nested elements
if (isset($configuration['elements'])) {
foreach ($configuration['elements'] as $nestedConfiguration) {
$this->generateFunction($columnPrefix, $column, $nestedConfiguration, $allowDate, $allowTime);
}
}
if (($expression !== FALSE) || (count($column->branches) != 0)) {
$parentColumn->branches[] = $column;
}
}
protected static function registerFactMeasure(CubeMetaData $cube, ColumnMetaData $column, $functionName, $additivity, $selectedApplicationType = NULL)
{
$measureName = StarSchemaNamingConvention::getFactRelatedMeasureName($column->name, $functionName);
$measure = $cube->registerMeasure($measureName);
$measure->publicName = t($functionName);
$measure->description = t("System generated '@functionName' measure for '@columnName' column", array('@functionName' => $measure->publicName, '@columnName' => $column->publicName));
$measure->used = FALSE;
$expression = FALSE;
if ($column->persistence == FormulaMetaData::PERSISTENCE__CALCULATED) {
if ($column->isUsed()) {
try {
$expressionAssembler = new FormulaExpressionAssembler($cube->factsDataset);
$expression = $expressionAssembler->assemble($column);
$measure->used = TRUE;
} catch (Exception $e) {
$message = t("@functionName measure assembled with errors. @error", array('@functionName' => $functionName, '@error' => $e->getMessage()));
$measure->functionError = $message;
LogHelper::log_warn($message);
}
} else {
$measure->functionError = t("@functionName measure was not assembled for the unused column", array('@functionName' => $functionName));
}
} else {
$formulaExpressionParser = new FormulaExpressionParser(SQLFormulaExpressionHandler::LANGUAGE__SQL);
$expression = $formulaExpressionParser->assemble($column->name);
$measure->used = TRUE;
}
$measure->function = $expression === FALSE ? FALSE : $functionName . '(' . $expression . ')';
$measure->additivity = $additivity;
$measure->type->applicationType = isset($selectedApplicationType) ? $selectedApplicationType : $column->type->applicationType;
$measure->type->scale = $column->type->scale;
}
