var executeScanQuery = function()

in database-jones/Adapter/api/UserContext.js [1512:1565]
41 lines of code
12 McCabe index (conditional complexity)

  var executeScanQuery = function() {
    // validate order, skip, and limit parameters
    var params = userContext.user_arguments[0];
    var orderToUpperCase;
    var order = params.order, skip = params.skip, limit = params.limit;
    var error;
    if (limit !== undefined) {
      if (limit < 0 || limit > MAX_LIMIT) {
        // limit is out of valid range
        error = new Error('Bad limit parameter \'' + limit + '\'; limit must be >= 0 and <= ' + MAX_LIMIT + '.');
      }
    }
    if (skip !== undefined) {
      if (skip < 0 || skip > MAX_SKIP) {
        // skip is out of valid range
        error = new Error('Bad skip parameter \'' + skip + '\'; skip must be >= 0 and <= ' + MAX_SKIP + '.');
      } else {
        if (!order) {
          // skip is in range but order is not specified
          error = new Error('Bad skip parameter \'' + skip + '\'; if skip is specified, order must be specified.');
        }
      }
    }
    if (order !== undefined) {
      if (typeof order !== 'string') {
        error = new Error('Bad order parameter \'' + order + '\'; order must be ignoreCase asc or desc.');
      } else {
        orderToUpperCase = order.toUpperCase();
        if (!(orderToUpperCase === 'ASC' || orderToUpperCase === 'DESC')) {
          error = new Error('Bad order parameter \'' + order + '\'; order must be ignoreCase asc or desc.');
        }
      }
    }
    if (error) {
      userContext.applyCallback(error, null);
    } else {
      dbSession = userContext.session.dbSession;
      transactionHandler = dbSession.getTransactionHandler();
      // TODO: should this also collect other pending operations?
      userContext.operation = dbSession.buildScanOperation(
          queryDomainType, userContext.user_arguments[0], transactionHandler, executeQueryScanOnResult);
      transactionHandler.execute([userContext.operation], function() {
        if(udebug.is_detail()) { udebug.log('executeScanQuery transactionHandler.execute callback.'); }
      });
    }
// TODO: this currently does not support batching
//  if (userContext.execute) {
//  transactionHandler.execute([userContext.operation], function() {
//    if(udebug.is_detail()) udebug.log('find transactionHandler.execute callback.');
//  });
//} else if (typeof(userContext.operationDefinedCallback) === 'function') {
//  userContext.operationDefinedCallback(1);
//}    
  };