public async Task <List <DTOperationRecord> > QueryBySkip(string storeInfo, int status, int skip, int take)
{
var info = JsonSerializerHelper.Deserialize <StoreInfo>(storeInfo);
if (info.DBConnectionNames == null || info.TableNames == null)
{
var fragment = new TextFragment()
{
Code = TextCodes.StoreInfoTypeError,
DefaultFormatting = "存储信息{0}要求的格式为{1}，发生位置{2}",
ReplaceParameters = new List <object>()
{
storeInfo, typeof(StoreInfo).ToString(), $"{this.GetType().FullName}.QueryBySkip"
}
};
throw new UtilityException((int)Errors.StoreInfoTypeError, fragment);
}
if (!info.TableNames.TryGetValue(_entityName, out string tableName))
{
var fragment = new TextFragment()
{
Code = TextCodes.NotFoundEntityNameInStoreInfo,
DefaultFormatting = "存储信息{0}中缺少实体名称为{1}的实体表映射",
ReplaceParameters = new List <object>()
{
storeInfo, _entityName
}
};
throw new UtilityException((int)Errors.NotFoundEntityNameInStoreInfo, fragment);
}
List <DTOperationRecord> dataList = new List <DTOperationRecord>();
await DBTransactionHelper.SqlTransactionWorkAsync(DBTypes.SqlServer, true, false, _transactionConnectionFactory.CreateAllForDTOperationRecord(info.DBConnectionNames), async (conn, transaction) =>
{
SqlTransaction sqlTran = null;
if (transaction != null)
{
sqlTran = (SqlTransaction)transaction;
}
await using (SqlCommand commond = new SqlCommand()
{
Connection = (SqlConnection)conn,
CommandType = CommandType.Text,
Transaction = sqlTran
})
{
commond.CommandText = string.Format(@"select {0} from {1} where [status]=@status order by [sequence] OFFSET @skip ROWS FETCH NEXT @take ROWS ONLY", StoreHelper.GetDTOperationRecordSelectFields(string.Empty));
var parameter = new SqlParameter("@skip", SqlDbType.Int)
{
Value = skip
};
commond.Parameters.Add(parameter);
parameter = new SqlParameter("@take", SqlDbType.Int)
{
Value = take
};
commond.Parameters.Add(parameter);
parameter = new SqlParameter("@status", SqlDbType.Int)
{
Value = status
};
commond.Parameters.Add(parameter);
await commond.PrepareAsync();
SqlDataReader reader = null;
await using (reader = await commond.ExecuteReaderAsync())
{
while (await reader.ReadAsync())
{
var data = new DTOperationRecord();
StoreHelper.SetDTOperationRecordSelectFields(data, reader, string.Empty);
dataList.Add(data);
}
await reader.CloseAsync();
}
}
});
return(dataList);
}
public async Task <DTOperationRecord> QueryByUniqueName(string storeGroupName, string hashInfo, string uniqueName)
{
string strConn = _transactionConnectionFactory.CreateAllForDTOperationRecord();
var(connNames, tableName) = await getStoreInfo(storeGroupName, hashInfo);
if (connNames != null)
{
strConn = _transactionConnectionFactory.CreateAllForDTOperationRecord(connNames);
}
else
{
tableName = "DTOperationRecord";
}
DTOperationRecord record = null;
await DBTransactionHelper.SqlTransactionWorkAsync(DBTypes.SqlServer, true, false, strConn, async (conn, transaction) =>
{
SqlTransaction sqlTran = null;
if (transaction != null)
{
sqlTran = (SqlTransaction)transaction;
}
await using (SqlCommand commond = new SqlCommand()
{
Connection = (SqlConnection)conn,
CommandType = CommandType.Text,
Transaction = sqlTran,
CommandText = string.Format(@"select {0} from {1} where [uniquename]=@uniquename", StoreHelper.GetDTOperationRecordSelectFields(string.Empty), tableName)
})
{
var parameter = new SqlParameter("@uniquename", SqlDbType.VarChar, 150)
{
Value = uniqueName
};
commond.Parameters.Add(parameter);
await commond.PrepareAsync();
SqlDataReader reader = null;
await using (reader = await commond.ExecuteReaderAsync())
{
if (await reader.ReadAsync())
{
record = new DTOperationRecord();
StoreHelper.SetDTOperationRecordSelectFields(record, reader, string.Empty);
}
await reader.CloseAsync();
}
}
});
return(record);
}