protected function approveColumn4ParticipationInExpression(ColumnMetaData $column) {
// checking if the column is available
if (!$column->isUsed()) {
throw new IllegalStateException(t(
'%columnName column is unused and cannot participate in the expression',
array('%columnName' => $column->publicName)));
}
}
protected function prepareAttributeColumnUIMetaData(array $datasetStack, $referencePath, CubeMetaData $cube, $dimensionName, $dimensionReferencePath, DatasetMetaData $dataset = NULL, ColumnMetaData $column) {
$dimensionColumnName = isset($dimensionReferencePath)
? self::prepareReferencedElementName($dimensionReferencePath, $dataset->name, $column->name)
: $column->name;
$attributeUIMetaData = new AttributeColumnUIMetaData();
$attributeUIMetaData->name = self::prepareAttributeUIMetaDataName($referencePath, $cube->factsDatasetName, $dimensionName, $dimensionColumnName);
$attributeUIMetaData->publicName = $column->publicName;
$attributeUIMetaData->description = $column->description;
$attributeUIMetaData->columnIndex = $column->columnIndex;
$attributeUIMetaData->type = clone $column->type;
$attributeUIMetaData->datasetName = $cube->factsDatasetName;
if ($column->isKey()) {
$attributeUIMetaData->isSelectable = FALSE;
}
if (!$column->isUsed()) {
$attributeUIMetaData->isSelectable = FALSE;
}
if (!$column->isKey()) {
$this->prepareAttributeColumnUIMetaData4ColumnBranch($datasetStack, $attributeUIMetaData, $referencePath, $cube, $dimensionName, $dimensionReferencePath, $dataset, $column);
}
list($referencedDatasetName) = ReferencePathHelper::splitReference($column->type->getLogicalApplicationType());
if (isset($referencedDatasetName)) {
$branchReferencePath = NULL;
if (isset($dataset)) {
$branchReferencePath = isset($dimensionReferencePath)
? self::prepareReferencedElementName($dimensionReferencePath, $dataset->name, $column->name)
: ReferencePathHelper::assembleReference($dataset->name, $column->name);
}
$this->generateColumnUIMetaData4DimensionDataset(
$datasetStack, $attributeUIMetaData, $referencePath, $cube, $dimensionName, $branchReferencePath, $referencedDatasetName);
}
return $attributeUIMetaData;
}
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;
}
