public override void AddSort(object expr, IComparer comparer)
{
// sort makes sense only when we are dealing with a query that
// returns a nodeset.
Query evalExpr;
string query = expr as string;
if (query != null)
{
evalExpr = new QueryBuilder().Build(query, out _needContext); // this will throw if expr is invalid
}
else
{
CompiledXpathExpr xpathExpr = expr as CompiledXpathExpr;
if (xpathExpr != null)
{
evalExpr = xpathExpr.QueryTree;
}
else
{
throw XPathException.Create(SR.Xp_BadQueryObject);
}
}
SortQuery sortQuery = _query as SortQuery;
if (sortQuery == null)
{
_query = sortQuery = new SortQuery(_query);
}
sortQuery.AddSort(evalExpr, comparer);
}
private SortQuery(SortQuery other) : base(other)
{
this.results = new List<SortKey>(other.results);
this.comparer = other.comparer.Clone();
this.qyInput = Query.Clone(other.qyInput);
base.count = 0;
}
public override void AddSort(object expr, IComparer comparer) {
// sort makes sense only when we are dealing with a query that
// returns a nodeset.
Query evalExpr;
if (expr is string) {
evalExpr = new QueryBuilder().Build((string)expr, out needContext); // this will throw if expr is invalid
} else if (expr is CompiledXpathExpr) {
evalExpr = ((CompiledXpathExpr)expr).QueryTree;
} else {
throw XPathException.Create(Res.Xp_BadQueryObject);
}
SortQuery sortQuery = query as SortQuery;
if (sortQuery == null) {
query = sortQuery = new SortQuery(query);
}
sortQuery.AddSort(evalExpr, comparer);
}
public override void AddSort(object expr, IComparer comparer)
{
Query queryTree;
if (expr is string)
{
queryTree = new QueryBuilder().Build((string) expr, out this.needContext);
}
else
{
if (!(expr is CompiledXpathExpr))
{
throw XPathException.Create("Xp_BadQueryObject");
}
queryTree = ((CompiledXpathExpr) expr).QueryTree;
}
SortQuery query2 = this.query as SortQuery;
if (query2 == null)
{
this.query = query2 = new SortQuery(this.query);
}
query2.AddSort(queryTree, comparer);
}
public static IOrderedQueryable <TSource> Sort <TSource>(this IOrderedQueryable <TSource> source, IJsonApiContext jsonApiContext, SortQuery sortQuery)
{
BaseAttrQuery attr;
if (sortQuery.IsAttributeOfRelationship)
{
attr = new RelatedAttrSortQuery(jsonApiContext, sortQuery);
}
else
{
attr = new AttrSortQuery(jsonApiContext, sortQuery);
}
return(sortQuery.Direction == SortDirection.Descending
? source.ThenByDescending(attr.GetPropertyPath())
: source.ThenBy(attr.GetPropertyPath()));
}
