public CommandResult Execute(ICommandInfo commandInfo)
{
var readInfo = commandInfo as ReadCommandInfo;
if (readInfo == null)
{
return(CommandResult.Fail("CommandInfo does not implement ReadCommandInfo"));
}
if (readInfo.DataSource == null)
{
throw new ClientException("Invalid ReadCommand argument: Data source is not set.");
}
var genericRepository = _repositories.GetGenericRepository(readInfo.DataSource);
ReadCommandResult result = _serverCommandsUtility.ExecuteReadCommand(readInfo, genericRepository);
if (result.Records != null && !AlreadyFilteredByRowPermissions(readInfo))
{
var valid = _serverCommandsUtility.CheckAllItemsWithinFilter(result.Records, RowPermissionsReadInfo.FilterName, genericRepository);
if (!valid)
{
throw new UserException("You are not authorized to access some or all of the data requested.", "DataStructure:" + readInfo.DataSource + ".");
}
}
return(new CommandResult
{
Data = _dataTypeProvider.CreateBasicData(result),
Message = (result.Records != null ? result.Records.Length.ToString() : result.TotalCount.ToString()) + " row(s) found",
Success = true
});
}
public static QueryDataSourceCommandResult FromReadCommandResult(ReadCommandResult readCommandResult)
{
return(new QueryDataSourceCommandResult
{
Records = readCommandResult.Records,
TotalRecords = readCommandResult.TotalCount.Value
});
}
public static QueryDataSourceCommandResult FromReadCommandResult(ReadCommandResult readCommandResult)
{
return new QueryDataSourceCommandResult
{
Records = readCommandResult.Records,
TotalRecords = readCommandResult.TotalCount.Value
};
}
public CommandResult Execute(ICommandInfo commandInfo)
{
var info = (QueryDataSourceCommandInfo)commandInfo;
var genericRepository = _repositories.GetGenericRepository(info.DataSource);
var readCommandInfo = info.ToReadCommandInfo();
ReadCommandResult readCommandResult = _serverCommandsUtility.ExecuteReadCommand(readCommandInfo, genericRepository);
var result = QueryDataSourceCommandResult.FromReadCommandResult(readCommandResult);
return(new CommandResult
{
Data = _dataTypeProvider.CreateBasicData(result),
Message = (result.Records != null ? result.Records.Length.ToString() : result.TotalRecords.ToString()) + " row(s) found",
Success = true
});
}
public ReadCommandResult ExecuteReadCommand(ReadCommandInfo commandInfo, GenericRepository <IEntity> genericRepository)
{
if (!commandInfo.ReadRecords && !commandInfo.ReadTotalCount)
{
throw new ClientException("Invalid ReadCommand argument: At least one of the properties ReadRecords or ReadTotalCount should be set to true.");
}
if (commandInfo.Top < 0)
{
throw new ClientException("Invalid ReadCommand argument: Top parameter must not be negative.");
}
if (commandInfo.Skip < 0)
{
throw new ClientException("Invalid ReadCommand argument: Skip parameter must not be negative.");
}
if (commandInfo.DataSource != genericRepository.EntityName)
{
throw new FrameworkException(string.Format(
"Invalid ExecuteReadCommand arguments: The given ReadCommandInfo ('{0}') does not match the GenericRepository ('{1}').",
commandInfo.DataSource, genericRepository.EntityName));
}
AutoApplyFilters(commandInfo);
ReadCommandResult result;
var specificMethod = genericRepository.Reflection.RepositoryReadCommandMethod;
if (specificMethod != null)
{
result = (ReadCommandResult)specificMethod.InvokeEx(genericRepository.EntityRepository, commandInfo);
}
else
{
bool pagingIsUsed = commandInfo.Top > 0 || commandInfo.Skip > 0;
object filter = commandInfo.Filters != null && commandInfo.Filters.Any() ? (object)commandInfo.Filters : new FilterAll();
IEnumerable <IEntity> filtered = genericRepository.Read(filter, filter.GetType(), preferQuery: pagingIsUsed || !commandInfo.ReadRecords);
IEntity[] resultRecords = null;
int? totalCount = null;
if (commandInfo.ReadRecords)
{
var sortedAndPaginated = GenericFilterHelper.SortAndPaginate(genericRepository.Reflection.AsQueryable(filtered), commandInfo);
resultRecords = (IEntity[])genericRepository.Reflection.ToArrayOfEntity(sortedAndPaginated);
}
if (commandInfo.ReadTotalCount)
{
if (pagingIsUsed)
{
totalCount = SmartCount(filtered);
}
else
{
totalCount = resultRecords != null ? resultRecords.Length : SmartCount(filtered);
}
}
result = new ReadCommandResult
{
Records = resultRecords,
TotalCount = totalCount
};
}
return(result);
}
