public IQueryBuilder OrderBy(IQueryOrder orderBy)
{
if (orderBy != null && Orders.All(item => item.Field != orderBy.Field))
{
Orders.Add(orderBy);
}
return(this);
}
public static IQueryable <TEntity> ApplyOrder <TEntity, V>(this IQueryable <TEntity> src, IQueryOrder <TEntity, V> order) where TEntity : IDbEntity
{
if (order != null)
{
if (order.Direction == 0)
{
src = src.OrderBy(order.Expression).AsQueryable();
}
else
{
src = src.OrderByDescending(order.Expression).AsQueryable();
}
}
return(src);
}
public static IQueryable <T> ApplyOrdering <T, TOrderProperty>(this IQueryable <T> query, IQueryOrder <T, TOrderProperty> queryObj)
{
if (queryObj == null)
{
return(query);
}
if (queryObj.OrderBy == null)
{
return(query);
}
if (queryObj.IsOrderAscending)
{
return(query.OrderBy(queryObj.OrderBy));
}
return(query.OrderByDescending(queryObj.OrderBy));
}
/// <summary>
/// сортировка IQueryable на основе IQueryOrder
/// </summary>
public static IQueryable <TEntity> ApplyOrder <TEntity>(this IQueryable <TEntity> src, IQueryOrder <TEntity> order) where TEntity : class, IDbEntity
{
if (order != null)
{
src = order.OrderItems(src);
}
return(src);
}
public OrderedQuerySpec(QuerySpec <TEntity> baseSpec, IQueryOrder <TEntity, TSortKey> order)
{
BaseSpec = baseSpec;
Order = order;
}
