Method subcategories

src/frontend/DatasetModel.cpp:132–137

* @brief Returns the list of subcategories of a given collection and category. */

 * @brief  Returns the list of subcategories of a given collection and category.
 */
QStringList DatasetModel::subcategories(const QString& collection, const QString& category) {
	if (!collection.isEmpty())
		return m_subcategories[collection][category];
	else
		return allSubcategories(category);
}

/**
 * @brief Returns the list of datasets of a given collection, category and subcategory.