/// <summary>
/// Use this API it you did an aliastobean transform to type TTransform
/// </summary>
/// <typeparam name="TTransform"></typeparam>
/// <param name="queryable"></param>
/// <param name="startIndex"></param>
/// <param name="maxRows">A value of Zero means we're not paging</param>
/// <param name="totalCount"></param>
/// <returns></returns>
public RetrievedData <TTransform> RetrieveUsingPaging <TTransform>(IQueryOver <T, T> queryable, int startIndex, int maxRows, bool hasOrderBy = false)
where TTransform : class //, IEntity<idT>
{
IEnumerable <TTransform> result;
int totalCount = 0;
IFutureValue <int> futureCount = null;
if (maxRows > 0)
{
futureCount = queryable.Clone().Select(Projections.RowCount()).FutureValue <int>();
result = queryable.Skip(startIndex * maxRows).Take(maxRows).Future <TTransform>();
}
else //get all
{
result = queryable.Future <TTransform>();
}
var toReturn = result.ToList();
if (futureCount != null)
{
totalCount = futureCount.Value;
}
else
{
totalCount = toReturn.Count;
}
result = null;
futureCount = null;
return(new RetrievedData <TTransform>
{
DataBatch = toReturn,
TotalCount = totalCount
});
}
/// <summary>
/// Versuch über ein Detached Criteria die Where-Klauseln zu verarbeiten, damit es mit dem Order nicht zu
/// komplikationen kommt.
/// </summary>
protected virtual IPage <T> Find(IPageable pageable, Action <IQueryOver <T, T> > criteriaBuilder, Action <IQueryOver <T, T> > ordersBuilder = null)
{
Require.NotNull(pageable, "pageable");
Require.NotNull(criteriaBuilder, "criteriaBuilder");
HibernateDelegate <IPage <T> > finder = delegate(ISession session) {
IQueryOver <T, T> query = session.QueryOver <T>();
criteriaBuilder(query);
if (ordersBuilder != null)
{
ordersBuilder(query);
}
IQueryOver <T, T> countQuery = session.QueryOver <T>();
criteriaBuilder(countQuery);
query.Skip(pageable.FirstItem);
query.Take(pageable.PageSize);
long futureTotalCount = countQuery.RowCountInt64();
IEnumerable <T> futureElements = query.Future <T>();
Page <T> page = new Page <T>(futureElements.ToList(), pageable, futureTotalCount);
return(page);
};
return(HibernateTemplate.Execute(finder));
}
public override Response Handle(PagedSearchRequest <TDto> request)
{
var response = CreateTypedResponse();
var keyword = request.Keyword + "%";
IQueryOver <TEntity> query = null;
var entityQuery = Session.QueryOver <TEntity>()
.Where(WhereExpress(keyword));
var organizationExpression = GetOrganization();
if (organizationExpression != null)
{
query = entityQuery.JoinQueryOver(organizationExpression)
.Where(o => o.Key == UserContext.OrganizationKey);
}
else
{
query = entityQuery;
}
query = query.Skip(request.Page * request.PageSize)
.Take(request.PageSize);
var result = query.Future <TEntity>() ?? Enumerable.Empty <TEntity> ();
response.TotalCount = query.ToRowCountQuery().FutureValue <int>().Value;
response.Results = Mapper.Map <IEnumerable <TEntity>, IEnumerable <TDto> > (result.ToList());
return(response);
}
/// <summary>
///
/// </summary>
/// <param name="theQueryOver"></param>
/// <param name="startIndex"></param>
/// <param name="maxRows">A value of Zero means we're not paging</param>
/// <param name="hasOrderBy"></param>
/// <returns></returns>
public RetrievedData <T> RetrieveUsingPaging(IQueryOver <T, T> theQueryOver, int startIndex, int maxRows, bool hasOrderBy = false)
{
IEnumerable <T> result;
int totalCount = 0;
IFutureValue <int> futureCount = null;
if (maxRows > 0)
{
futureCount = theQueryOver.Clone().Select(Projections.RowCount()).FutureValue <int>();
result = theQueryOver.Skip(startIndex * maxRows).Take(maxRows).Future <T>();
}
else //get all
{
result = theQueryOver.Future <T>();
}
var toReturn = result.ToList();
if (futureCount != null)
{
totalCount = futureCount.Value;
}
else
{
totalCount = toReturn.Count;
}
result = null;
futureCount = null;
return(new RetrievedData <T>
{
DataBatch = toReturn,
TotalCount = totalCount
});
}
public static IEnumerable <TU> Future <T, TU>(this IQueryOver <T> query, IDatabaseProvider databaseProvider)
{
if (databaseProvider.SupportFuture)
{
return(query.Future <TU>());
}
return(query.List <TU>());
}
public IPage <TResult> FindPage <TResult>(IQueryOver <TResult, TResult> queryOver, IPageable pageRequest)
{
IQueryOver <TResult, TResult> countQuery = queryOver.Clone().ClearOrders().ToRowCountInt64Query();
countQuery.Skip(0).Take(int.MaxValue);
IFutureValue <long> rowCount = countQuery.Select(Projections.RowCountInt64()).FutureValue <long>();
queryOver.Skip(pageRequest.FirstItem);
queryOver.Take(pageRequest.PageSize);
IEnumerable <TResult> enumerable = queryOver.Future <TResult>();
return(new Page <TResult>(enumerable.ToList(), pageRequest, rowCount.Value));
}
static public PagedResult <DTO> ToPagedResults <DTO, Model>(this IQueryOver <Model, Model> query, PartialRetrievingInfo retrievingInfo, string countPropertyName = null, Func <IEnumerable <Model>, DTO[]> mappingMethod = null, IQueryOver <Model, Model> fetchQuery = null)
{
IEnumerable <Model> queryEnumerable = null;
if (fetchQuery != null)
{
fetchQuery.ApplyPaging(retrievingInfo).Future();
}
int count = 0;
if (retrievingInfo.PageSize > PartialRetrievingInfo.AllElementsPageSize)
{
IFutureValue <int> rowCountQuery = query.ToRowCountQuery().FutureValue <int>();
IQueryOver <Model> pagedResults = query.ApplyPaging(retrievingInfo);
queryEnumerable = pagedResults.Future();
count = rowCountQuery.Value;
}
else
{
queryEnumerable = query.Future();
count = queryEnumerable.Count();
}
DTO[] list = null;
if (mappingMethod == null)
{
list = Mapper.Map <IEnumerable <Model>, DTO[]>(queryEnumerable);
}
else
{
list = mappingMethod(queryEnumerable);
}
PagedResult <DTO> res = new PagedResult <DTO>(list, count, retrievingInfo.PageIndex);
res.RetrievedDateTime = DateTime.UtcNow;
Log.WriteInfo("Paged result. AllCount:{0},PageIndex:{1},PageSize:{2}", res.AllItemsCount, res.PageIndex, res.Items.Count);
return(res);
}
public static ListaPaginada <object> PaginadoObject <T>(this IQueryOver <T, T> query, int pagina, int tamanhoPagina) where T : class
{
IFutureValue <long> count = MontarQueryPaginado(query, pagina, tamanhoPagina);
return(new ListaPaginada <object>(query.Future <object>(), count.Value, tamanhoPagina));
}
public IList <TRoot> List()
{
Build();
return(new List <TRoot>(MainQuery.Future()));
}
