public IEnumerable <Course> GetTrending()
{
var fields = CourseFieldBuilder
.Exclude(c => c.Id)
.Exclude(c => c.Duration)
.Exclude(c => c.Sections)
.Exclude(c => c.FullDescription)
.Exclude(c => c.Prerequisites);
var all = _courseCollection
.Find(c => true)
.Project <Course>(fields)
.ToList();
return(all);
}
private static async Task ThrowForOtherEtag(IMongoCollection <BsonDocument> collection, string key, string etag, Exception ex)
{
var existingEtag =
await collection.Find(Filter.Eq(FieldId, key))
.Project <BsonDocument>(Projection.Exclude(FieldDoc)).FirstOrDefaultAsync();
if (existingEtag != null && existingEtag.Contains(FieldEtag))
{
throw new InconsistentStateException(existingEtag[FieldEtag].AsString, etag, ex);
}
}
public IDocumentProjectionBuilder Exclude(string property)
{
_projections.Add(InternalBuilder.Exclude(property));
return(this);
}