Method getUnitList

src/iso19111/factory.cpp:8964–9005

\brief Return the list of units. * @throw FactoryException in case of error. * * @since 7.1 */

 * @since 7.1
 */
std::list<AuthorityFactory::UnitInfo> AuthorityFactory::getUnitList() const {
    std::string sql = "SELECT auth_name, code, name, type, conv_factor, "
                      "proj_short_name, deprecated FROM unit_of_measure";
    ListOfParams params;
    if (d->hasAuthorityRestriction()) {
        sql += " WHERE auth_name = ?";
        params.emplace_back(d->authority());
    }
    sql += " ORDER BY auth_name, code";

    auto sqlRes = d->run(sql, params);
    std::list<AuthorityFactory::UnitInfo> res;
    for (const auto &row : sqlRes) {
        AuthorityFactory::UnitInfo info;
        info.authName = row[0];
        info.code = row[1];
        info.name = row[2];
        const std::string &raw_category(row[3]);
        if (raw_category == "length") {
            info.category = info.name.find(" per ") != std::string::npos
                                ? "linear_per_time"
                                : "linear";
        } else if (raw_category == "angle") {
            info.category = info.name.find(" per ") != std::string::npos
                                ? "angular_per_time"
                                : "angular";
        } else if (raw_category == "scale") {
            info.category =
                info.name.find(" per year") != std::string::npos ||
                        info.name.find(" per second") != std::string::npos
                    ? "scale_per_time"
                    : "scale";
        } else {
            info.category = raw_category;
        }
        info.convFactor = row[4].empty() ? 0 : c_locale_stod(row[4]);
        info.projShortName = row[5];
        info.deprecated = row[6] == "1";
        res.emplace_back(info);
    }
    return res;
}

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