public static void FindTranslation(MongoCollection<Word> collection, string word)
{
bool containsWord = collection.AsQueryable<Word>().Any(w => w.WordText == word);
if (!containsWord)
{
Console.WriteLine("Word does not exist in the dictionary.");
return;
}
Word wordData = collection.AsQueryable<Word>().First(w => w.WordText == word);
Console.WriteLine(wordData);
}
public static Dictionary <string, double> StatisticsAntennas()
{
string connectionString = "mongodb://*****:*****@ds046047.mlab.com:46047/banks-db";
MongoClient client = null;
client = new MongoClient(connectionString);
MongoServer server = null;
server = client.GetServer();
MongoDatabase database = null;
database = server.GetDatabase("banks-db");
MongoCollection userCollection = null;
userCollection = database.GetCollection <Company>("company");
List <Company> query = userCollection.AsQueryable <Company>().ToList();
Dictionary <string, double> dict = new Dictionary <string, double>();
foreach (var item in query)
{
dict.Add(item.CompanyName, item.Density / 10);
}
return(dict);
}
public HttpResponseMessage PostAnswerToIssue(AnswerIssue answer, [ValueProvider(typeof(HeaderValueProviderFactory <string>))] string authKey)
{
HttpResponseMessage responseMessage;
User sqlUser;
if (!ValidateCredentials.AuthKeyIsValid(db, authKey, out sqlUser) || answer.Text.Length > 300)
{
responseMessage = this.Request.CreateErrorResponse(HttpStatusCode.BadRequest, "Invalid information.");
return(responseMessage);
}
MongoCollection <UsersProjects> usersInProjects = mongoDb.GetCollection <UsersProjects>(MongoCollections.UsersInProjects);
// todo projects need to be recognized by id
// the relation table has to save the id and use it in further queries
MongoCollection <OpenIssue> issuesCollection = mongoDb.GetCollection <OpenIssue>(MongoCollections.Issues);
var issue = issuesCollection.AsQueryable <OpenIssue>().FirstOrDefault(x => x.Id == new ObjectId(answer.IssueId));
if (issue == null)
{
responseMessage = this.Request.CreateErrorResponse(HttpStatusCode.BadRequest, "No such issue.");
return(responseMessage);
}
issue.Answers.Add(answer);
issuesCollection.Save(issue);
List <AnswerIssue> entries = GetEntries(issue);
return(responseMessage = this.Request.CreateResponse(HttpStatusCode.OK, new { Entries = entries }));
}
public void TestDistinctMustBeLastOperator()
{
_collection.RemoveAll();
_collection.Insert(new C {
Id = 1, X = 1
});
_collection.Insert(new C {
Id = 2, X = 2
});
var query = _collection.AsQueryable()
.Select(d => d.X)
.Distinct();
var result = query.AsEnumerable().OrderBy(x => x).ToList();
Assert.AreEqual(2, result.Count);
Assert.AreEqual(1, result[0]);
Assert.AreEqual(2, result[1]);
var ex = Assert.Throws <NotSupportedException>(() => { query.Count(); });
var message = "No further operators may follow Distinct in a LINQ query.";
Assert.AreEqual(message, ex.Message);
}
// Use this for initialization
void Start()
{
//gets the vumark manager
vmm = TrackerManager.Instance.GetStateManager().GetVuMarkManager();
//connectst to the server & collections
client = new MongoClient(new MongoUrl(connectionString));
server = client.GetServer();
server.Connect();
db = server.GetDatabase("documents");
coll = db.GetCollection <Statue>("Other");
//queries the database
List <Statue> query = coll.AsQueryable <Statue>().Where <Statue>(u => u.vumark == num).ToList();
Debug.Log(query);
foreach (var x in query)
{
Debug.Log(x.name);
}
//whenever a new vumark is registered, call SetVumark
vb = GameObject.Find("VuMark").GetComponent <VuMarkBehaviour> ();
vb.RegisterVuMarkTargetAssignedCallback(new System.Action(this.SetVumark));
}
public HandlingHistory LookupHandlingHistoryOfCargo(TrackingId trackingId)
{
var cargo = new CargoRepositoryMongo(db).Find(trackingId);
var data = handlingEvents.AsQueryable().Where(he => he.cargoId == cargo.id);
return(new HandlingHistory(data));
}
public static void WriteToSqlLite(MongoCollection reports)
{
string conString = @"Data Source=../../../supermarket.db;Version=3;";
var dbSqLiteConnection = new SQLiteConnection(conString);
try
{
dbSqLiteConnection.Open();
var query = (from report in reports.AsQueryable<TotalReport>()
select report);
foreach (var report in query)
{
report.product_name = report.product_name.Replace("\"", "\"\"");
string commandText = String.Format(@"INSERT INTO TotalReports VALUES({0},""{1}"",""{2}"",{3}, {4});",
report.product_id, report.product_name, report.vendor_name, report.total_quantity_sold, report.total_incomes);
SQLiteCommand cmd = new SQLiteCommand(commandText, dbSqLiteConnection);
cmd.ExecuteNonQuery();
}
}
catch (SQLiteException ex)
{
Console.WriteLine(ex.Message);
}
finally
{
dbSqLiteConnection.Close();
}
}
public static void ListAll(MongoCollection<Word> collection)
{
foreach (var word in collection.AsQueryable<Word>())
{
Console.WriteLine(word);
}
}
public HttpResponseMessage PostNote(Note postedNote, [ValueProvider(typeof(HeaderValueProviderFactory <string>))] string authKey)
{
HttpResponseMessage responseMessage;
User sqlUser;
if (!ValidateCredentials.AuthKeyIsValid(db, authKey, out sqlUser))
{
responseMessage = this.Request.CreateErrorResponse(HttpStatusCode.BadRequest, "Invalid information.");
return(responseMessage);
}
MongoCollection <UsersProjects> usersInProjects = mongoDb.GetCollection <UsersProjects>(MongoCollections.UsersInProjects);
// todo projects need to be recognized by id
// the relation table has to save the id and use it in further queries
UsersProjects postingUser = usersInProjects.AsQueryable <UsersProjects>()
.FirstOrDefault(x => x.Username == sqlUser.Username &&
x.ProjectName == postedNote.ProjectName && x.Role >= UserRoles.ProjectManager);
if (postingUser == null)
{
responseMessage = this.Request.CreateErrorResponse(HttpStatusCode.BadRequest, "User does not participate in project or role is insufficient.");
return(responseMessage);
}
MongoCollection <Note> notesCollection = mongoDb.GetCollection <Note>(MongoCollections.Notes);
notesCollection.Save(postedNote);
return(responseMessage = this.Request.CreateResponse(HttpStatusCode.OK, new { Posted = "Success" }));
}
public ActionResult GetFileDownloadObjectId(string objectIdValue)
{
FileContentResult fileContentResult = null;
try
{
MongoClient client = new MongoClient("mongodb://localhost");
MongoServer server = client.GetServer();
MongoDatabase database = server.GetDatabase("test");
MongoCollection collection = database.GetCollection("forms");
// ObjectId id = new ObjectId(objectIdValue);
List <Form> employees = collection.AsQueryable <Form>().Where(o => o.FileId == objectIdValue).ToList();
foreach (var emp in employees)
{
ObjectId fileId = new ObjectId(emp.FileId);
MongoGridFSFileInfo file = database.GridFS.FindOne(MongoDB.Driver.Builders.Query.EQ("_id", fileId));
using (var stream = file.OpenRead())
{
var bytes = new byte[stream.Length];
stream.Read(bytes, 0, (int)stream.Length);
Employee objemp = new Employee();
objemp.Data = bytes;
MemoryStream memoryStream = new MemoryStream(bytes);
byte[] bytesInStream = memoryStream.ToArray(); // simpler way of converting to array
fileContentResult = File(bytesInStream, "application/msword", emp.FileName);
}
}
}
catch (Exception ee)
{
throw ee;
}
return(fileContentResult);
}
public Member LogIn(string openId, string email)
{
var member = _membersCollection.AsQueryable()
.FirstOrDefault(m => m.OpenId == openId);
if (member == null)
{
member = CreateOnFirstLogIn(openId, email);
}
else
{
member.LastConnection = DateTime.Now;
_membersCollection.Save(member);
}
return(member);
}
public List <IngredientDto> GetIngredients(int count, int skipIndex)
{
var ingredients = _collection.AsQueryable <Ingredient>();
ingredients = ingredients.Skip(skipIndex * count).Take(count);
var ingredientDtos = new List <IngredientDto>();
foreach (var ingredient in ingredients)
{
var ingredientDto = new IngredientDto
{
IngredientId = ingredient._id.ToString(),
Name = ingredient.Name,
Description = ingredient.Description,
CarbonHydrateWeightPercent = ingredient.CarbonHydrateWeightPercent,
EnergyInKcal = ingredient.EnergyInKcal,
FatWeightPercent = ingredient.FatWeightPercent,
ProteineWeightPercent = ingredient.ProteineWeightPercent,
AlcoholVolumePercent = ingredient.AlcoholVolumePercent
};
ingredientDtos.Add(ingredientDto);
}
return(ingredientDtos);
}
public HttpResponseMessage GetRegister([FromUri] MobileDevice value)
{
if (value == null)
{
return(Request.CreateResponse(HttpStatusCode.BadRequest, "Não foram enviados dados."));
}
if (value._id.Equals(Guid.Empty))
{
MongoCollection <MobileDevice> collection = _database.GetCollection <MobileDevice>("MobileDevices");
MobileDevice md = collection.AsQueryable().FirstOrDefault(m => m.MACAddress == value.MACAddress);
if (md == null)
{
collection.Insert(value);
}
else if (value.Equals(md))
{
collection.Save(md);
}
else
{
return(Request.CreateResponse(HttpStatusCode.OK, md));
}
}
return(Request.CreateResponse(HttpStatusCode.Created, value));
}
public void TestQueryAgainstInheritedField()
{
_collection.Drop();
_collection.Insert(new D {
X = 1, Y = 2
});
var query = from d in _collection.AsQueryable <D>()
where d.X == 1
select d;
var translatedQuery = MongoQueryTranslator.Translate(query);
Assert.IsType <SelectQuery>(translatedQuery);
Assert.Same(_collection, translatedQuery.Collection);
Assert.Same(typeof(D), translatedQuery.DocumentType);
var selectQuery = (SelectQuery)translatedQuery;
Assert.Equal("(D d) => (d.X == 1)", ExpressionFormatter.ToString(selectQuery.Where));
Assert.Null(selectQuery.OrderBy);
Assert.Null(selectQuery.Projection);
Assert.Null(selectQuery.Skip);
Assert.Null(selectQuery.Take);
Assert.Equal("{ \"X\" : 1 }", selectQuery.BuildQuery().ToJson());
Assert.Equal(1, query.ToList().Count);
}
protected override TAggregateRoot DoGetByKey(Guid key)
{
MongoCollection collection = mongoDBRepositoryContext.GetCollectionForType(typeof(TAggregateRoot));
Guid id = (Guid)key;
return(collection.AsQueryable <TAggregateRoot>().Where(p => p.ID == id).First());
}
public ICollection <T> GetByExpressionSync(Expression <Func <T, bool> > predicate)
{
var filter = predicate.Compile();
var result = MongoCollection.AsQueryable().Where(filter);
return(result.ToList());
}
SearchFor(Expression <Func <TEntity, bool> > predicate)
{
return(collection
.AsQueryable <TEntity>()
.Where(predicate.Compile())
.ToList());
}
public HttpResponseMessage PostIssue(OpenIssue postedIssue, [ValueProvider(typeof(HeaderValueProviderFactory <string>))] string authKey)
{
HttpResponseMessage responseMessage;
User sqlUser;
if (!ValidateCredentials.AuthKeyIsValid(db, authKey, out sqlUser) || postedIssue.Title.Length > 20 || postedIssue.Text.Length > 300)
{
responseMessage = this.Request.CreateErrorResponse(HttpStatusCode.BadRequest, "Invalid information.");
return(responseMessage);
}
MongoCollection <UsersProjects> usersInProjects = mongoDb.GetCollection <UsersProjects>(MongoCollections.UsersInProjects);
// todo projects need to be recognized by id
// the relation table has to save the id and use it in further queries
UsersProjects postingUser = usersInProjects.AsQueryable <UsersProjects>()
.FirstOrDefault(x => x.Username == sqlUser.Username &&
x.ProjectName == postedIssue.ProjectName);
if (postingUser == null)
{
responseMessage = this.Request.CreateErrorResponse(HttpStatusCode.BadRequest, "User does not participate in project.");
return(responseMessage);
}
MongoCollection <OpenIssue> issuesCollection = mongoDb.GetCollection <OpenIssue>(MongoCollections.Issues);
postedIssue.ByUser = sqlUser.Username;
postedIssue.Answers = new List <AnswerIssue>();
issuesCollection.Save(postedIssue);
return(responseMessage = this.Request.CreateResponse(HttpStatusCode.OK, new { Posted = "Success" }));
}
public HttpResponseMessage GetNote(string noteId, [ValueProvider(typeof(HeaderValueProviderFactory <string>))] string authKey)
{
HttpResponseMessage responseMessage;
User sqlUser;
if (!ValidateCredentials.AuthKeyIsValid(db, authKey, out sqlUser))
{
responseMessage = this.Request.CreateErrorResponse(HttpStatusCode.BadRequest, "Invalid information.");
return(responseMessage);
}
MongoCollection <Note> notesCollection = mongoDb.GetCollection <Note>(MongoCollections.Notes);
Note foundNote = notesCollection.FindOneAs <Note>(Query.EQ("_id", new ObjectId(noteId)));
MongoCollection <UsersProjects> usersInProjects = mongoDb.GetCollection <UsersProjects>(MongoCollections.UsersInProjects);
// todo projects need to be recognized by id
UsersProjects postingUser = usersInProjects.AsQueryable <UsersProjects>()
.FirstOrDefault(x => x.Username == sqlUser.Username &&
x.ProjectName == foundNote.ProjectName);
if (postingUser == null)
{
responseMessage = this.Request.CreateErrorResponse(HttpStatusCode.BadRequest, "User does not participate in project.");
return(responseMessage);
}
return(responseMessage = this.Request.CreateResponse(HttpStatusCode.OK, new { Note = foundNote }));
}
protected override TAggregateRoot DoGetByKey(ValueType key)
{
MongoCollection collection = _context.GetCollectionForType(typeof(TAggregateRoot));
var id = (Guid)key;
return(collection.AsQueryable <TAggregateRoot>().FirstOrDefault(p => p.Id == id));
}
public override bool Execute()
{
try
{
this.Log.LogMessage(string.Format("Applying '{0}' migration.", this.DatabaseName));
MongoCollection <BsonDocument> migrations = this.Database.GetCollection("Migrations");
foreach (ITaskItem migration in this.Migrations)
{
var migrationId = new Guid(migration.GetMetadata(MigrationId));
if (migrations.AsQueryable <Migration>().Any(m => m.MigrationId == migrationId))
{
continue;
}
string fileName = migration.GetMetadata("Identity");
this.Log.LogMessage(string.Format("Applying migration id: '{0}' fileName: '{1}'.", migrationId,
fileName));
RunJavascript.Eval(this.Database, fileName);
var document = new BsonDocument {
{ MigrationId, migrationId }
};
migrations.Save(document);
}
}
catch (Exception ex)
{
this.Log.LogErrorFromException(ex);
return(false);
}
this.Log.LogMessage(string.Format("'{0}' migration completed.", this.DatabaseName));
return(true);
}
//
// GET: /Error/
public ActionResult Index()
{
var errors = (from error in db.AsQueryable()
orderby error.Date descending
select error).Take(20).ToArray();
return(View(errors));
}
public ActionResult Duzenle(ObjectId id)
{
MongoDatabase db = DB();
MongoCollection <rehberModel> updateColl = db.GetCollection <rehberModel>("kisiler");
rehberModel edit = (from r in updateColl.AsQueryable() where r.id == id select r).FirstOrDefault();
return(View("Duzenle", edit));
}
public void TestExplainFromLinqQueryEqualsExplainFromCursor()
{
var linqExplain = _collection.AsQueryable <C>().Where(c => c.X == 2 && c.Y == 1).Take(1).Explain();
var queryExplain = _collection.FindAs <C>(Query.And(Query.EQ("X", 2), Query.EQ("Y", 1))).SetLimit(1).Explain();
// not all versions and/or topologies of the server return a queryPlanner.parsedQuery element in the explain result
if (linqExplain.Contains("queryPlanner"))
{
if (linqExplain["queryPlanner"].AsBsonDocument.Contains("parsedQuery"))
{
var linqQuery = linqExplain["queryPlanner"]["parsedQuery"];
var findQuery = queryExplain["queryPlanner"]["parsedQuery"];
Assert.Equal(linqQuery, findQuery);
}
}
}
public JsonResult GetAll()
{
MongoCollection f = DB.GetFightersCollection();
var fighters = from fighter in f.AsQueryable <Fighter>()
select fighter;
return(Json(fighters, JsonRequestBehavior.AllowGet));
}
public void InsertHug(string recipient, Hug hug)
{
var mongUserObject = _mongoCollection.AsQueryable().Single(a => a.UserID == new BsonObjectId(recipient));
var hugs = mongUserObject.Hugs;
if (hugs.Any(a => a.SenderID == hug.SenderID)) //No reason to store this - the user has already hugged.
{
return;
}
hugs.Add(hug);
var query = Query.EQ("_id", new BsonObjectId(recipient));
var update = Update.AddToSet("Hugs", hug.ToBsonDocument());
_mongoCollection.FindAndModify(query, SortBy.Null, update);
}
public JsonResult GetAll()
{
MongoCollection c = DB.GetChallengesCollection();
var challenges = from challenge in c.AsQueryable <Challenge>()
select challenge;
return(Json(challenges, JsonRequestBehavior.AllowGet));
}
// GET:
public ActionResult UserInformation()
{
var username = Membership.GetUser().UserName.ToLower();
var user =
_usersCollection.AsQueryable().FirstOrDefault(x => string.Equals(x.NameLowerSpace, username));
return(View(user));
}
internal static void CheckUser(string authKey, Organization queriedOrganization, MongoCollection <UsersOrganizations> usersAndOrganizations, out UsersOrganizations foundUser, UserRoles role, IUoWData db)
{
var userMongoId = db.Users.All().Single(x => x.AuthKey == authKey).MongoId;
foundUser = usersAndOrganizations.AsQueryable <UsersOrganizations>()
.FirstOrDefault(x => x.Role >= role &&
x.UserId == new ObjectId(userMongoId) && x.OrganizationName == queriedOrganization.Name);
}
private static Invitation FindInvitation(InvitationViewModel invitaion, Server.Models.User user, MongoCollection <BsonDocument> invitations)
{
var foundInvitation = invitations.AsQueryable <Invitation>()
.FirstOrDefault(x => x.InvitedUserId == new ObjectId(user.MongoId) &&
x.Id == new ObjectId(invitaion.Id));
return(foundInvitation);
}
public T SingleOrDefaultSync(Expression <Func <T, bool> > where)
{
var filter = where.Compile();
var result = MongoCollection.AsQueryable()
.Where(filter);
return(result.SingleOrDefault());
}
public static void BestCompany(string CompanyName)
{
string connectionString = "mongodb://*****:*****@ds046047.mlab.com:46047/banks-db";
//Creating Client
MongoClient client = null;
try
{
client = new MongoClient(connectionString);
MongoServer server = null;
server = client.GetServer();
MongoDatabase database = null;
database = server.GetDatabase("banks-db");
MongoCollection userCollection = null;
userCollection = database.GetCollection <Company>("company");
Console.WriteLine(userCollection.Count().ToString());
List <Company> query = userCollection.AsQueryable <Company>().ToList();
Company company = userCollection.AsQueryable <Company>().Where <Company>(sb => sb.CompanyName.Equals(CompanyName)).ToList().FirstOrDefault();
if (company == null)
{
ObjectId id = new ObjectId();
//Inserting document to collection/
try
{
company = new Company();
company.id = id;
company.CompanyName = CompanyName;
company.Density = 1;
userCollection.Insert(company);
}
catch (Exception ex)
{
Console.WriteLine("Error :" + ex.Message);
}
}
else
{
userCollection.Update(Query.EQ("CompanyName", CompanyName), Update.Set("Density", company.Density + 1));
}
}
catch (Exception ex)
{
Console.WriteLine("Error :" + ex.Message);
}
}
public void TestConstructorWithTwoArguments()
{
var queryable = _collection.AsQueryable <C>();
var iqueryable = (IQueryable) new MongoQueryable <C>((MongoQueryProvider)queryable.Provider, queryable.Expression);
Assert.AreSame(typeof(C), iqueryable.ElementType);
Assert.AreSame(queryable.Provider, iqueryable.Provider);
Assert.AreSame(queryable.Expression, iqueryable.Expression);
}
private static void PrintAllWords(MongoCollection<Word> collection)
{
var words = collection.AsQueryable().ToList();
Console.WriteLine("All words in dictionary:");
foreach (var word in words)
{
Console.WriteLine(word);
}
}
public static void AddWord(MongoCollection<Word> collection, string word, string translation)
{
Word wordData = new Word(word, translation);
bool containsWord = collection.AsQueryable<Word>().Any(w => w.WordText == word);
if (containsWord)
{
Console.WriteLine("The word is already added to the dictionary.");
return;
}
collection.Insert(wordData);
Console.WriteLine("Word added");
}
public static void SreachWord(MongoCollection words)
{
Console.Write("Enter word for translation: ");
string searchedWord = Console.ReadLine().ToLower();
var searched = words.AsQueryable<Word>().FirstOrDefault(w => w.Value == searchedWord);
if (searched != null)
{
Console.WriteLine("Word: {0}\nTranslation: {1}", searched.Value, searched.Translation);
}
else
{
Console.WriteLine("This word is not exist");
}
}
// http://www.yoda.arachsys.com/csharp/singleton.html 线程安全的模式
// 静态构造函数用于初始化任何静态数据，或用于执行仅需执行一次的特定操作。在创建第一个实例或引用任何静态成员之前将调用静态构造函数。
static TaskQueue()
{
tasks = new List<SpiderTask>();
agents = new List<Agent>();
siteCollection = (DependencyResolver.Current.GetService(typeof(IMongoRepo<Site>)) as IMongoRepo<Site>).Collection;
taskModelCollection = (DependencyResolver.Current.GetService(typeof(IMongoRepo<TaskModel>)) as IMongoRepo<TaskModel>).Collection;
//注意必须使用ToList避免懒惰加载，否则在每次调用taskModels对象时会再次查询，从而清空已被赋值过的Timer属性。
//这里应该是mongo driver或mongo Respository的特殊模式。
taskModels = taskModelCollection.AsQueryable<TaskModel>().Where(d => d.Act == (int)eAct.Normal && d.Interval > 0).ToList();
sites = siteCollection.Find(Query<Site>.EQ(d => d.Act, (int)eAct.Normal)).ToList();
Instance = new TaskQueue();
Instance.ModelTimerBuild();
Instance.Maintenance();
}
public static void RemoveWords(MongoCollection words)
{
Console.Write("Enter word for remove: ");
string editWord = Console.ReadLine().ToLower();
var searched = words.AsQueryable<Word>().FirstOrDefault(w => w.Value == editWord);
if (searched != null)
{
var query = Query.EQ("_id", searched.Id);
words.Remove(query);
}
else
{
Console.WriteLine("This word is not exist");
}
}
private static void Read(MongoCollection<Log> logs)
{
Console.WriteLine("READ");
//// Native
//var findLogsQuery = Query.And(Query.EQ("LogType.Type", "bug"), Query.GT("LogDate", DateTime.Now.AddDays(-7)));
//logs.Find(findLogsQuery).Print();
//// Linq
//var findBugsQuery = Query<Log>.Where(log => log.LogType.Type == "bug" && log.LogDate > DateTime.Now.AddDays(-7));
//logs.Find(findBugsQuery).Print();
// LinqToMongoDB
var newBugs = logs.AsQueryable<Log>().Where(log => log.LogType.Type == "bug" && log.LogDate > DateTime.Now.AddDays(-7));
newBugs.Print();
}
public static void EditWord(MongoCollection words)
{
Console.Write("Enter word for edit: ");
string editWord = Console.ReadLine().ToLower();
Console.Write("Enter new translation: ");
string translation = Console.ReadLine().ToLower();
var searched = words.AsQueryable<Word>().FirstOrDefault(w => w.Value == editWord);
if (searched != null)
{
var update = Update.Set("Translation", translation);
var query = Query.EQ("_id", searched.Id);
words.Update(query, update);
}
else
{
Console.WriteLine("This word is not exist");
}
}
public static void AddWord(MongoCollection words)
{
Console.Write("Enter word: ");
string loweredWordt = Console.ReadLine().ToLower();
Console.Write("Enter translation: ");
string loweredTranslation = Console.ReadLine().ToLower();
Word newWord = new Word(loweredWordt, loweredTranslation);
int countWords = words.AsQueryable<Word>().Where(w => w.Value == newWord.Value).Count();
if (countWords > 0)
{
Console.WriteLine("This word already exist");
}
else
{
words.Insert<Word>(newWord);
}
}
private static void FindWords(MongoCollection<Word> words)
{
Console.Write("Enter word to search for:");
var word = Console.ReadLine();
string foundWordTranslation = words.AsQueryable<Word>().
Where(w => w.TheWord == word).
Select(w => w.Translation).
FirstOrDefault();
if (foundWordTranslation != null)
{
Console.WriteLine(foundWordTranslation);
}
else
{
Console.WriteLine("No such word found!");
}
}
public static void Insert(MongoCollection<Currency> collection, Currency currency)
{
try
{
collection.CreateIndex(IndexKeys<Currency>.Descending(c => c.Date));
var result =
(from c in collection.AsQueryable<Currency>()
where c.Date == currency.Date
select c)
.Count();
if (result == 0)
collection.Insert(currency);
}
catch (Exception ex)
{
Console.WriteLine(ex.ToString());
}
}
public static void Insert(MongoCollection<Weather> collection, Weather weather)
{
try
{
collection.CreateIndex(IndexKeys<Weather>.Descending(c => c.Date));
var result =
(from c in collection.AsQueryable<Weather>()
where c.Date == weather.Date
select c)
.Count();
if (result == 0)
collection.Insert(weather);
Console.WriteLine(weather);
}
catch (Exception ex)
{
Console.WriteLine(ex.ToString());
}
}
public static void ListItems(MongoCollection<DictionaryItem> dictionaryItems)
{
var allItems = from i in dictionaryItems.AsQueryable<DictionaryItem>()
select i;
foreach (var item in allItems)
{
Console.WriteLine(item);
}
}
private void SeedData(MongoDatabase db)
{
if (db == null) throw new ArgumentNullException("db");
// Reset db
db.GetCollection("IDSequence").Drop();
_usersCol = db.GetCollection<MembershipAccount>(MembershipAccount.GetCollectionName());
_usersCol.Drop();
var salt = Crypto.GenerateSalt();
var user1 = new MembershipAccount("User1")
{
PasswordSalt = salt,
Password = Crypto.HashPassword("p@ssword" + salt),
IsConfirmed = false
};
var user2 = new MembershipAccount("NonLocalUser")
{
IsLocalAccount = false,
IsConfirmed = true
};
_usersCol.InsertBatch(new[] { user1, user2 });
var oAuthTokenCol = db.GetCollection<OAuthToken>(OAuthToken.GetCollectionName());
oAuthTokenCol.Drop();
oAuthTokenCol.Insert(new OAuthToken("Tok3n", "tok3nSecret"));
var oAuthMembershipCol = db.GetCollection<OAuthMembership>(OAuthMembership.GetCollectionName());
oAuthMembershipCol.Drop();
oAuthMembershipCol.Insert( new OAuthMembership("Test", "User1@Test", 1) );
Users = _usersCol.AsQueryable();
OAuthTokens = oAuthTokenCol.AsQueryable();
OAuthMemberships = oAuthMembershipCol.AsQueryable();
}
/// <summary>
/// 基本的 单一条件的 LINQ 查询.
/// </summary>
/// <param name="collection"></param>
private void BasicLinq(MongoCollection<TestLinq> collection)
{
// 查询 FirstName 完全匹配.
var queryFirstName =
from data in collection.AsQueryable<TestLinq>()
where data.FirstName == "Jac"
select data;
foreach (TestLinq result in queryFirstName)
{
Console.WriteLine("查询 FirstName = Jac ，查询结果 = {0}", result);
}
// 模糊查询 LastName
var queryLastName =
from data in collection.AsQueryable<TestLinq>()
where data.LastName.StartsWith("Q")
select data;
foreach (TestLinq result in queryLastName)
{
Console.WriteLine("查询 LastName LIKE Q% ，查询结果 = {0}", result);
}
// 测试数字 大小.
var querySeqNo =
from data in collection.AsQueryable<TestLinq>()
where data.SeqNumber > 13
select data;
foreach (TestLinq result in querySeqNo)
{
Console.WriteLine("查询 SeqNumber > 13 ，查询结果 = {0}", result);
}
}
private static void ListWords(MongoCollection<Word> words)
{
var allWords = from w in words.AsQueryable<Word>()
select w;
foreach (var word in allWords)
{
Console.WriteLine("{0} - {1}", word.TheWord, word.Translation);
}
}
public Dictionary(MongoCollection<Word> dictionary)
{
this.dict = dictionary;
this.queryableCollection = dictionary.AsQueryable<Word>();
}
private static IEnumerable<Tweet> FälligeTweets(DateTime fälligkeit, MongoCollection<Tweet> collection) {
return collection.AsQueryable().Where(x => x.Veröffentlichen <= fälligkeit).ToList();
}
static string GetTranslation(MongoCollection<DictionaryEntry> dictionary, string word)
{
var entry = dictionary.AsQueryable<DictionaryEntry>()
.FirstOrDefault(e => e.Word == word);
if (entry != null)
{
return entry.Translation;
}
return null;
}
private static void FindWord(MongoCollection<Word> collection, string key)
{
var word = collection.AsQueryable().Where(w => w.KeyWord == key).FirstOrDefault();
Console.WriteLine(word);
}
/// <summary>
/// 多条件查询.
/// </summary>
/// <param name="collection"></param>
private void MultiCondLinq(MongoCollection<TestLinq> collection,
string firstName, string lastName, int? minSeqNo, int? maxSeqNo)
{
// 初始化查询， 没有任何条件.
var query =
from data in collection.AsQueryable<TestLinq>()
select data;
if (!String.IsNullOrEmpty(firstName))
{
// 如果输入了 firstName
// 追加条件.
query = query.Where(p=>p.FirstName.Contains(firstName));
}
if (!String.IsNullOrEmpty(lastName))
{
// 如果输入了 firstName
// 追加条件.
query = query.Where(p => p.LastName.Contains(lastName));
}
if (minSeqNo != null)
{
// 如果输入了 最小编号.
// 追加条件.
// 注意：如果条件直接写 >= NullAble 的， 执行将会抱错！
query = query.Where(p => p.SeqNumber >= minSeqNo.Value);
}
if (maxSeqNo != null)
{
// 如果输入了 最大编号.
// 追加条件.
query = query.Where(p => p.SeqNumber <= maxSeqNo.Value);
}
// 输出查询结果
Console.WriteLine("######动态查询 FirstName:{0}; LastName:{1}; SeqNumber:({2}--{3})",
firstName, lastName, minSeqNo, maxSeqNo);
foreach (TestLinq result in query)
{
Console.WriteLine("查询结果 = {0}", result);
}
Console.WriteLine();
}
public MongoDictionary(MongoCollection<Word> dictionaryCollection)
{
this.dictionaryCollection = dictionaryCollection;
this.collectionQuery = dictionaryCollection.AsQueryable<Word>();
}
public static void SearchItem(MongoCollection<DictionaryItem> dictionaryItems)
{
Console.WriteLine("Enter word for search: ");
string searchedWord = Console.ReadLine();
var searchedItems = (from d in dictionaryItems.AsQueryable<DictionaryItem>()
where d.Word == searchedWord
select d).FirstOrDefault();
Console.WriteLine(searchedItems);
}
public ProductsReport(MongoCollection<MongoProduct> products)
{
this.products = products;
this.queryableProducts = products.AsQueryable<MongoProduct>();
}
private void AddUserFavoriteMovie( User user, Movie favoriteMovie, MongoCollection<User> userCollection )
{
var movieShort = new MovieShortDetail( favoriteMovie );
var movieShortBson = movieShort.ToBsonDocument();
// Add permanently to model without saving
user.FavoriteMovies.Add( movieShort );
// Add atomically to database
userCollection.Update( Query.EQ( IdFieldName, user.Id ),
Update.AddToSet( FavoriteMoviesFieldName, movieShortBson ) );
// Update favorite movie collections for user's friends
var friendIds = user.Friends.Select( f => f.UserId ).ToArray();
var friends = userCollection.AsQueryable().Where( u => friendIds.Contains( u.Id ) );
foreach (var friend in friends)
{
userCollection.Update( Query.EQ( IdFieldName, friend.Id ),
Update.AddToSet( FriendsFavoriteMoviesFieldName, movieShortBson ) );
}
}