private async Task ProcessIncludes(List <IEntity> results, CancellationToken ct)
{
if (!Includes.Any())
{
return;
}
//TODO: optimize / parallel processing
foreach (var propertyDefinition in Includes)
{
var targetEntityDefinition =
(IEntityDefinition)propertyDefinition.PropertyType.GetTargetValueType(propertyDefinition);
var foreignIds = results
.Select(x => x[propertyDefinition.Name])
.Where(x => x != null)
.Cast <IEntity>()
.Select(x => _repository.GetDocumentId(targetEntityDefinition, x.Id))
.Distinct();
var foreignQuery = new DocumentDbQuery(_repository, targetEntityDefinition)
.Add(Criterion.In(MetaConstants.IdProperty, foreignIds.Cast <object>().ToArray()));
var foreignEntities = (await foreignQuery.ToEnumerable <IEntity>(ct)).ToDictionary(x => x.Id);
results.ForEach(x =>
{
var foreignId = ((IEntity)x[propertyDefinition.Name])?.Id;
if (foreignId != null && foreignEntities.ContainsKey(foreignId))
{
x[propertyDefinition.Name] = foreignEntities[foreignId];
}
});
}
}
private static void AddCriterion(IQuery query, string selector, StringValues selectorValues)
{
if (selectorValues.Count > 1)
{
query.Add(Criterion.In(selector, selectorValues));
}
else
{
query.Add(Criterion.Eq(selector, selectorValues.FirstOrDefault()));
}
}