public IQueryable <TResult> GetQuery(IQueryable <TSource> query)
{
if (query == null)
{
throw new ArgumentNullException(nameof(query));
}
var groupBy = MakeGroupByExpression(GroupingKeys.ToArray());
IQueryable query1 = (IQueryable)TypicalLinqMethods.QueryableGroupBy
.MakeGenericMethod(typeof(TSource), groupBy.ReturnType)
.Invoke(null, new object[] { query, groupBy });
var selectExpr = MakeSelectExpression(groupBy, _mappings);
MethodInfo selectMethod = TypicalLinqMethods.QueryableSelect.MakeGenericMethod(query1.ElementType, typeof(TResult));
query1 = (IQueryable)selectMethod.Invoke(null, new object[] { query1, selectExpr });
if (!_sorts.IsNullOrEmpty())
{
query1 = OrderByBuilder.Build(query1, _sorts);
}
return((IQueryable <TResult>)query1);
}
internal protected virtual IQueryable DefaultSort(IQueryable query, bool enforceOrderable)
{
var q0 = query;
if (_defaultSorts != null && _defaultSorts.TryGetValue(query.ElementType, out Delegate sorter))
{
query = (IQueryable)sorter.DynamicInvoke(query, this);
}
else
{
OrderByBuilder.TryBuildDefault(ref query, this);
}
if (enforceOrderable && q0 == query || !(query is IOrderedQueryable))
{
query = OrderByBuilder.BuildByKeys(query);
}
return(query);
}
public virtual IQueryable <T> OrderBy <T>(IQueryable <T> query)
{
return(OrderByBuilder.Build(query, this));
}
