public async Task <SearchResult <Classifier> > Search(ClassifierSearchRequest request, CancellationToken cancellationToken)
{
var type = await _classifierTypeService.Get(request.TypeCode, cancellationToken);
using (var db = _dbContextFactory.Create())
{
var result = await SearchInternal(db, type, request, cancellationToken);
// search in data by Uid is not effective - O(n), but ok for small collections
if (request.FocusUid.HasValue && result.Rows.Any(x => x.Uid == request.FocusUid) == false)
{
// todo: add test
var focus = await SearchInternal(db, type, new ClassifierSearchRequest
{
Uid = request.FocusUid,
SkipPaging = true
}, cancellationToken);
for (var i = focus.Rows.Count - 1; i >= 0; i--)
{
result.Rows.Insert(0, focus.Rows[i]);
}
}
// todo: preload fields for multiple items or (?) store fields in the same table?
if (request.IncludeFields)
{
var metadata = await _metadataService.GetMetadata(type, cancellationToken);
foreach (var item in result.Rows)
{
var fields = await _fieldDataRepository.Search(new FieldDataSearchRequest
{
Metadata = metadata,
EntityTypeCode = Classifier.TypeCode,
// ReSharper disable once PossibleInvalidOperationException
EntityUids = new[] { item.Uid.Value }
}, cancellationToken);
item.Fields = fields.Rows.SingleOrDefault();
}
}
return(result);
}
}
