Chronozoom.Entities.Storage.PutTriplet C# (CSharp) Метод

PutTriplet() публичный Метод

Add triple with specified parameters.
public PutTriplet ( TripleName subjectName, TripleName predicateName, TripleName objectName ) : bool
subjectName TripleName
predicateName TripleName
objectName TripleName
Результат bool
        public bool PutTriplet(TripleName subjectName, TripleName predicateName, TripleName objectName)
        {
            subjectName = EnsurePrefix(subjectName);
            predicateName = EnsurePrefix(predicateName);
            objectName = EnsurePrefix(objectName);
            var shortSubjectStr = subjectName.ToString();
            var shortPredicateStr = predicateName.ToString();
            var shortObjectStr = objectName.ToString();

            var tr = Triples.Where(t => t.Subject == shortSubjectStr && t.Predicate == shortPredicateStr).Include(o => o.Objects).FirstOrDefault();
            if (tr != null)
            {
                if (tr.Objects.FirstOrDefault(x => x.Object == shortObjectStr) == null)
                {
                    tr.Objects.Add(
                        new TripleObject
                            {
                                Object = shortObjectStr,
                                TripleObject_Id = Guid.NewGuid()
                            }
                    );
                }
                else
                {
                    return true;
                }
                SaveChanges();
                return true;
            }
            var triple = new Triple
                {
                    Subject = shortSubjectStr,
                    Predicate = shortPredicateStr,
                    Id = Guid.NewGuid(),
                    Objects = new Collection<TripleObject>
                        {
                            new TripleObject
                                {
                                    Object = shortObjectStr,
                                    TripleObject_Id = Guid.NewGuid()
                                }
                        }
                };
            Triples.Add(triple);
            SaveChanges();
            return true;
        }

Usage Example

Пример #1
0
        public void PutTriplet(SingleTriple triple)
        {
            try
            {
                var subjectName = TripleName.Parse(triple.Subject);
                var predicateName = TripleName.Parse(triple.Predicate);
                var objectName = TripleName.Parse(triple.Object);
            #if RELEASE
                ApiOperation(delegate(User user, Storage storage)
                {
                    if (user == null)
                    {
                        SetStatusCode(HttpStatusCode.Unauthorized, "Anonymous users cannot modify triple");
                    }
                    else
                    {
                        objectName = storage.EnsurePrefix(objectName);
                        if (objectName.Prefix == "_")
                        {
                            var tripleOwner = storage.GetSubjectOwner(objectName);
                            if (tripleOwner != null && tripleOwner != user.Id.ToString())
                                SetStatusCode(HttpStatusCode.BadRequest, "Object bNode belongs to another user");
                        }

                        if (storage.GetSubjectOwner(subjectName) == user.Id.ToString())
                        {
            #else
                            using(var storage = new Storage())
            #endif
                            {

                                SetStatusCode(storage.PutTriplet(subjectName, predicateName, objectName) ? HttpStatusCode.OK : HttpStatusCode.NotModified, "");
                            }
            #if RELEASE
                        }
                        else
                        {
                            SetStatusCode(HttpStatusCode.Unauthorized, "Only subject owners can modify triple");
                        }
                    }
                });
            #endif
            }
            catch (ArgumentException exc)
            {
                SetStatusCode(HttpStatusCode.BadRequest, exc.Message);
            }
        }
All Usage Examples Of Chronozoom.Entities.Storage::PutTriplet