/// <summary>
/// Suggests pages for the relations editor.
/// </summary>
public async Task <IReadOnlyList <PageTitleExtendedVM> > SuggestRelationPagesAsync(RelationSuggestQueryVM request)
{
if (request == null)
{
return(null);
}
var subRequest = new PickRequestVM <PageType> {
Query = request.Query, Types = request.Types
};
if (request.DestinationId == null && request.SourceId == null)
{
return(await SuggestPagesAsync(subRequest));
}
var queryRoot = _db.Relations
.Where(x => x.IsDeleted == false);
var idQuery = request.DestinationId != null
? queryRoot.Where(x => x.DestinationId == request.DestinationId)
.Select(x => x.SourceId)
: queryRoot.Where(x => x.SourceId == request.SourceId)
.Select(x => x.DestinationId);
var existingIds = await idQuery.ToHashSetAsync();
var selfId = request.DestinationId ?? request.SourceId ?? Guid.Empty;
existingIds.Add(selfId);
return(await SuggestPagesAsync(
new PickRequestVM <PageType> {
Query = request.Query, Types = request.Types
},
ids => ids.Where(id => !existingIds.Contains(id)).ToList()
));
}
public async Task <ActionResult> SuggestPagesForRelationSource([FromQuery] RelationSuggestQueryVM vm)
{
var pages = await _suggest.SuggestRelationPagesAsync(vm);
return(Json(pages));
}
