Method registerDelete

app/src/API/Handlers/DataTablesHandler.cpp:535–583

* @brief Removes a register from a table. With dryRun:true, reports what would be deleted * without mutating. */

 *        without mutating.
 */
API::CommandResponse API::Handlers::DataTablesHandler::registerDelete(const QString& id,
                                                                      const QJsonObject& params)
{
  QString table;
  QString name;
  if (!requireString(params, QStringLiteral("table"), table))
    return CommandResponse::makeError(
      id, ErrorCode::MissingParam, QStringLiteral("Missing required parameter: table"));

  if (!requireString(params, QStringLiteral("name"), name))
    return CommandResponse::makeError(
      id, ErrorCode::MissingParam, QStringLiteral("Missing required parameter: name"));

  auto& pm           = DataModel::ProjectModel::instance();
  const auto& tables = pm.tables();
  const auto tit =
    std::find_if(tables.begin(), tables.end(), [&table](const auto& t) { return t.name == table; });

  if (tit == tables.end())
    return CommandResponse::makeError(
      id, ErrorCode::InvalidParam, QStringLiteral("Table not found: %1").arg(table));

  const auto rit = std::find_if(tit->registers.begin(),
                                tit->registers.end(),
                                [&name](const auto& r) { return r.name == name; });

  if (rit == tit->registers.end())
    return CommandResponse::makeError(
      id, ErrorCode::InvalidParam, QStringLiteral("Register not found: %1/%2").arg(table, name));

  const bool isDryRun = params.value(QStringLiteral("dryRun")).toBool(false);

  QJsonObject result;
  result[QStringLiteral("table")]    = table;
  result[QStringLiteral("name")]     = name;
  result[QStringLiteral("computed")] = (rit->type == DataModel::RegisterType::Computed);

  if (isDryRun) {
    result[QStringLiteral("dryRun")]  = true;
    result[QStringLiteral("deleted")] = false;
    result[QStringLiteral("warning")] = QStringLiteral(
      "DRY RUN: no changes were written. Re-call without dryRun:true to delete the register.");
    return CommandResponse::makeSuccess(id, result);
  }

  pm.deleteRegister(table, name);
  result[QStringLiteral("deleted")] = true;
  return CommandResponse::makeSuccess(id, result);
}

/**
 * @brief Updates an existing register. Unspecified fields retain their value.