public async Task <SystemOperation> QueryById(Guid id)
{
SystemOperation result = null;
await DBTransactionHelper.SqlTransactionWorkAsync(DBTypes.SqlServer, true, false, _dbConnectionFactory.CreateReadForWhitelistPolicy(), async (conn, transaction) =>
{
SqlTransaction sqlTran = null;
if (transaction != null)
{
sqlTran = (SqlTransaction)transaction;
}
using (SqlCommand commond = new SqlCommand()
{
Connection = (SqlConnection)conn,
CommandType = CommandType.Text,
CommandText = string.Format(@"select {0} from SystemOperation where [id]=@id", StoreHelper.GetSystemOperationSelectFields(string.Empty)),
Transaction = sqlTran
})
{
var parameter = new SqlParameter("@id", SqlDbType.UniqueIdentifier)
{
Value = id
};
commond.Parameters.Add(parameter);
commond.Prepare();
SqlDataReader reader = null;
using (reader = await commond.ExecuteReaderAsync())
{
if (await reader.ReadAsync())
{
result = new SystemOperation();
StoreHelper.SetSystemOperationSelectFields(result, reader, string.Empty);
}
reader.Close();
}
}
});
return(result);
}
public async Task <QueryResult <Whitelist> > QueryByPage(int page, int pageSize)
{
QueryResult <Whitelist> result = new QueryResult <Whitelist>();
await DBTransactionHelper.SqlTransactionWorkAsync(DBTypes.SqlServer, true, false, _dbConnectionFactory.CreateReadForWhitelistPolicy(), async (conn, transaction) =>
{
SqlTransaction sqlTran = null;
if (transaction != null)
{
sqlTran = (SqlTransaction)transaction;
}
using (SqlCommand commond = new SqlCommand()
{
Connection = (SqlConnection)conn,
CommandType = CommandType.Text,
CommandText = string.Format(@"set @currentpage=@page
select @count= count(*) from WhiteList
if @pagesize*@page>=@count
begin
set @currentpage= @count/@pagesize
if @count%@pagesize<>0
begin
set @currentpage=@currentpage+1
end
if @currentpage=0
set @currentpage=1
end
else if @page<1
begin
set @currentpage=1
end
select {0} from WhiteList
order by sequence
offset (@pagesize * (@currentpage - 1)) rows
fetch next @pagesize rows only;" , StoreHelper.GetWhitelistSelectFields(string.Empty)),
Transaction = sqlTran
})
{
var parameter = new SqlParameter("@page", SqlDbType.Int)
{
Value = page
};
commond.Parameters.Add(parameter);
parameter = new SqlParameter("@pagesize", SqlDbType.Int)
{
Value = pageSize
};
commond.Parameters.Add(parameter);
parameter = new SqlParameter("@count", SqlDbType.Int)
{
Direction = ParameterDirection.Output
};
commond.Parameters.Add(parameter);
parameter = new SqlParameter("@currentpage", SqlDbType.Int)
{
Direction = ParameterDirection.Output
};
commond.Parameters.Add(parameter);
commond.Prepare();
SqlDataReader reader = null;
using (reader = await commond.ExecuteReaderAsync())
{
while (await reader.ReadAsync())
{
var whitelist = new Whitelist();
StoreHelper.SetWhitelistSelectFields(whitelist, reader, string.Empty);
result.Results.Add(whitelist);
}
reader.Close();
result.TotalCount = (int)commond.Parameters["@count"].Value;
result.CurrentPage = (int)commond.Parameters["@currentpage"].Value;
}
}
});
return(result);
}