/// <summary>
/// Sort and paginate results
/// </summary>
/// <param name="queryable"></param>
/// <param name="paginationQuery"></param>
/// <typeparam name="TModel"></typeparam>
/// <returns></returns>
public static IQueryable <TModel> TransformBy <TModel>(this IQueryable <TModel> queryable,
IPaginationQuery paginationQuery)
{
var pageSize = paginationQuery.PageSize > PaginationSettings.MaxPageSize
? PaginationSettings.MaxPageSize
: paginationQuery.PageSize;
if (!string.IsNullOrEmpty(paginationQuery.OrderBy))
{
queryable = SortExpressionFactory.SortBy(queryable, paginationQuery.OrderBy);
}
queryable = queryable
.Skip(pageSize * paginationQuery.Page)
.Take(pageSize);
return(queryable);
}
/// <summary>
/// To the query options.
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="odataQueryOptions">The o data query options.</param>
/// <returns>QueryOptions{``0}.</returns>
public static QueryOptions <T> ToQueryOptions <T>(this ODataQueryOptions <T> odataQueryOptions)
{
if (odataQueryOptions == null)
{
return(null);
}
var nameResolver = new MemberNameResolver();
var selectFactory = new SelectExpressionFactory <T>(nameResolver, new RuntimeTypeProvider(nameResolver));
var filterFactiory = new FilterExpressionFactory(nameResolver, Enumerable.Empty <IValueExpressionFactory>());
var orderFactory = new SortExpressionFactory(nameResolver);
return(new QueryOptions <T>
{
Top = odataQueryOptions.Top?.Value,
Skip = odataQueryOptions.Skip?.Value,
Select =
!string.IsNullOrEmpty(odataQueryOptions.SelectExpand?.RawSelect)
? selectFactory.Create(odataQueryOptions.SelectExpand.RawSelect)
: null,
Expand =
!string.IsNullOrEmpty(odataQueryOptions.SelectExpand?.RawExpand)
? odataQueryOptions.SelectExpand.RawExpand.Split(',').ToList()
: null,
OrderBy =
!string.IsNullOrEmpty(odataQueryOptions.OrderBy?.RawValue)
? orderFactory.Create <T>(odataQueryOptions.OrderBy.RawValue)
.Select(
description =>
new SortDescription(
description.KeySelector,
(SortDirection)description.Direction))
.ToList()
: null,
Filter =
!string.IsNullOrEmpty(odataQueryOptions.Filter?.RawValue)
? filterFactiory.Create <T>(odataQueryOptions.Filter.RawValue)
: null
});
}
public void FixtureSetup()
{
_factory = new SortExpressionFactory(new MemberNameResolver());
}
public void FixtureSetup()
{
_factory = new SortExpressionFactory(new MemberNameResolver());
}
