public Task <GetOrdersTransactionResult> Handle(GetOrdersTransaction request, CancellationToken cancellationToken)
{
IEnumerable <PersistentObject> datas = set.OrderByDescending(data => data.CreatedTimeUtc);
var pageCount = 1;
var pageIndex = 1;
if (request.PagingOptions != null &&
request.PagingOptions.PageIndex > 0 &&
request.PagingOptions.PageSize > 0)
{
pageIndex = request.PagingOptions.PageIndex;
pageCount = Convert.ToInt32(Math.Ceiling(Convert.ToDouble(datas.Count()) / Convert.ToDouble(request.PagingOptions.PageSize)));
datas = datas.Skip((request.PagingOptions.PageIndex - 1) * request.PagingOptions.PageSize)
.Take(request.PagingOptions.PageSize);
}
var result = new GetOrdersTransactionResult
{
PagingInfo =
new PagingInfo {
CurrentPageIndex = pageIndex, PageCount = pageCount
}
};
foreach (var data in datas)
{
var item = mapper.MapToGetOrdersTransactionResultItem(data);
result.Add(item);
}
return(Task.FromResult(result));
}
public async Task <GetOrdersTransactionResult> Handle(GetOrdersTransaction request, CancellationToken cancellationToken)
{
var connection = factory.Create(ConnectionType.Reporting);
const string SELECT_SQL = "SELECT * FROM orders ORDER BY CreatedTimeUtc DESC ";
const string PAGING_SQL = " LIMIT @offset,@take ";
const string COUNT_SQL = "SELECT COUNT(1) / @pageSize AS PageCount FROM orders";
string selectSQL = SELECT_SQL;
var offset = 0;
var take = 0;
int pageIndex = 1;
int totalPageCount = 1;
if (request.PagingOptions != null &&
request.PagingOptions.PageIndex > 0 &&
request.PagingOptions.PageSize > 0)
{
selectSQL += PAGING_SQL;
offset = (request.PagingOptions.PageIndex - 1) * request.PagingOptions.PageSize;
take = request.PagingOptions.PageSize;
var count = await connection.QuerySingleAsync <double>(COUNT_SQL, new { pageSize = request.PagingOptions.PageSize });
pageIndex = request.PagingOptions.PageIndex;
totalPageCount = Convert.ToInt32(Math.Ceiling(count));
}
var queryResults = await connection.QueryAsync <PersistentObject>(selectSQL, new
{
offset,
take
});
var result = new GetOrdersTransactionResult();
foreach (var data in queryResults)
{
var item = mapper.MapToGetOrdersTransactionResultItem(data);
result.Add(item);
}
result.PagingInfo = new PagingInfo {
CurrentPageIndex = pageIndex, PageCount = totalPageCount
};
return(result);
}
public async Task <GetOrdersQueryResult> Handle(GetOrdersQuery request, CancellationToken cancellationToken)
{
var transaction = new GetOrdersTransaction();
if (request.PagingOptions != null &&
request.PagingOptions.PageIndex > 0 &&
request.PagingOptions.PageSize > 0)
{
transaction.PagingOptions = new DataAccess.ReportingTransaction.PagingOptions
{
PageIndex = transaction.PagingOptions.PageIndex,
PageSize = transaction.PagingOptions.PageSize
};
}
var transactionResult = await bus.SendAsync(transaction);
var result = mapper.MapToGetOrdersQueryResult(transactionResult);
return(result);
}