コード例 #1
0
        public void TestPredictionInputOutput()
        {
            var echoModel = new EchoModel();

            echoModel.RegisterModel();

            using (var doc = new MutableDocument()) {
                doc.SetString("name", "Daniel");
                doc.SetInt("number", 2);
                doc.SetDouble("max", Double.MaxValue);
                Db.Save(doc);
            }

            var date  = DateTimeOffset.Now;
            var power = Function.Power(Expression.Property("number"), Expression.Int(2));
            var map   = new Dictionary <string, object>
            {
                ["null"]               = null,
                ["number1"]            = 10,
                ["number2"]            = 10.1,
                ["int_min"]            = Int32.MinValue,
                ["int_max"]            = Int32.MaxValue,
                ["int64_min"]          = Int64.MinValue,
                ["int64_max"]          = Int64.MaxValue,
                ["float_min"]          = Single.MinValue,
                ["float_max"]          = Single.MaxValue, // NOTE: Double limits are not guaranteed
                ["boolean_true"]       = true,
                ["boolean_false"]      = false,
                ["string"]             = "hello",
                ["date"]               = date,
                ["expr_property"]      = Expression.Property("name"),
                ["expr_value_number1"] = Expression.Value(20),
                ["expr_value_number2"] = Expression.Value(20.1),
                ["expr_value_boolean"] = Expression.Value(true),
                ["expr_value_string"]  = Expression.Value("hi"),
                ["expr_value_date"]    = Expression.Value(date),
                ["expr_value_null"]    = Expression.Value(null),
                ["expr_power"]         = power
            };

            var submap = new Dictionary <string, object> {
                ["foo"] = "bar"
            };

            map["dict"] = submap;
            var subList = new[] { "1", "2", "3" };

            map["array"] = subList;

            var subExprMap = new Dictionary <string, object> {
                ["ping"] = "pong"
            };

            map["expr_value_dict"] = Expression.Value(subExprMap);
            var subExprList = new[] { "4", "5", "6" };

            map["expr_value_array"] = Expression.Value(subExprList);

            var input      = Expression.Value(map);
            var model      = nameof(EchoModel);
            var prediction = Function.Prediction(model, input);

            using (var q = QueryBuilder.Select(SelectResult.Expression(prediction))
                           .From(DataSource.Database(Db)))
            {
                var rows = VerifyQuery(q, (n, result) =>
                {
                    var pred = result.GetDictionary(0);
                    pred.Count.Should().Be(map.Count,
                                           "because all properties should be serialized and recovered correctly");
                    pred.GetInt("number1").Should().Be(10);
                    pred.GetDouble("number2").Should().Be(10.1);
                    pred.GetInt("int_min").Should().Be(Int32.MinValue);
                    pred.GetInt("int_max").Should().Be(Int32.MaxValue);
                    pred.GetLong("int64_min").Should().Be(Int64.MinValue);
                    pred.GetLong("int64_max").Should().Be(Int64.MaxValue);
                    pred.GetFloat("float_min").Should().Be(Single.MinValue);
                    pred.GetFloat("float_max").Should().Be(Single.MaxValue);
                    pred.GetBoolean("boolean_true").Should().BeTrue();
                    pred.GetBoolean("boolean_false").Should().BeFalse();
                    pred.GetString("string").Should().Be("hello");
                    pred.GetDate("date").Should().Be(date);
                    pred.GetString("null").Should().BeNull();
                    pred.GetDictionary("dict").Should().Contain(submap);
                    pred.GetArray("array").Should().ContainInOrder(subList);

                    pred.GetString("expr_property").Should().Be("Daniel");
                    pred.GetInt("expr_value_number1").Should().Be(20);
                    pred.GetDouble("expr_value_number2").Should().Be(20.1);
                    pred.GetBoolean("expr_value_boolean").Should().BeTrue();
                    pred.GetString("expr_value_string").Should().Be("hi");
                    pred.GetDate("expr_value_date").Should().Be(date);
                    pred.GetString("expr_value_null").Should().BeNull();
                    pred.GetDictionary("expr_value_dict").Should().Contain(subExprMap);
                    pred.GetArray("expr_value_array").Should().ContainInOrder(subExprList);
                    pred.GetInt("expr_power").Should().Be(4);
                });

                rows.Should().Be(1);
            }
        }
コード例 #2
0
        static void Main(string[] args)
        {
            // This only needs to be done once for whatever platform the executable is running
            // (UWP, iOS, Android, or desktop)
            Couchbase.Lite.Support.NetDesktop.Activate();

            // create database
            var config = new DatabaseConfiguration();

            config.ConflictResolver = new ExampleConflictResolver();
            var database = new Database("my-database", config);

            // create document
            var newTask = new MutableDocument();

            newTask.SetString("type", "task");
            newTask.SetString("owner", "todo");
            newTask.SetDate("createdAt", DateTimeOffset.UtcNow);
            newTask = database.Save(newTask).ToMutable();

            // mutate document
            newTask.SetString("name", "Apples");
            newTask = database.Save(newTask).ToMutable();

            // typed accessors
            newTask.SetDate("createdAt", DateTimeOffset.UtcNow);
            var date = newTask.GetDate("createdAt");

            // database transaction
            database.InBatch(() =>
            {
                for (int i = 0; i < 10; i++)
                {
                    using (var doc = new MutableDocument()) {
                        doc.SetString("type", "user");
                        doc.SetString("name", $"user {i}");
                        using (var saved = database.Save(doc)) {
                            Console.WriteLine($"saved user document {saved.GetString("name")}");
                        }
                    }
                }
            });

            // blob
            var bytes = File.ReadAllBytes("avatar.jpg");
            var blob  = new Blob("image/jpg", bytes);

            newTask.SetBlob("avatar", blob);
            newTask = database.Save(newTask).ToMutable();
            var taskBlob = newTask.GetBlob("avatar");
            var data     = taskBlob.Content;

            newTask.Dispose();

            // query
            var query = QueryBuilder.Select(SelectResult.Expression(Meta.ID))
                        .From(DataSource.Database(database))
                        .Where(Expression.Property("type").EqualTo(Expression.String("user"))
                               .And(Expression.Property("admin").EqualTo(Expression.Boolean(false))));

            var rows = query.Execute();

            foreach (var row in rows)
            {
                Console.WriteLine($"doc ID :: ${row.GetString(0)}");
            }


            // live query
            query.AddChangeListener((sender, e) => {
                Console.WriteLine($"Number of rows :: {e.Results.Count()}");
            });

            using (var newDoc = new MutableDocument()) {
                newDoc.SetString("type", "user");
                newDoc.SetBoolean("admin", false);
                database.Save(newDoc);
            }

            // fts example
            // insert documents
            var tasks = new[] { "buy groceries", "play chess", "book travels", "buy museum tickets" };

            foreach (string task in tasks)
            {
                using (var doc = new MutableDocument()) {
                    doc.SetString("type", "task").SetString("name", task); // Chaining is possible
                    database.Save(doc);
                }
            }

            // create Index
            var index = IndexBuilder.FullTextIndex(FullTextIndexItem.Property("name"));

            database.CreateIndex("byName", index);

            using (var ftsQuery = QueryBuilder.Select(SelectResult.Expression(Meta.ID).As("id"))
                                  .From(DataSource.Database(database))
                                  .Where(FullTextExpression.Index("byName").Match("'buy'"))) {
                var ftsRows = ftsQuery.Execute();
                foreach (var row in ftsRows)
                {
                    var doc = database.GetDocument(row.GetString("id")); // Use alias instead of index
                    Console.WriteLine(
                        $"document properties {JsonConvert.SerializeObject(doc.ToDictionary(), Formatting.Indented)}");
                }
            }

            // create conflict

            /*
             * 1. Create a document twice with the same ID (the document will have two conflicting revisions).
             * 2. Upon saving the second revision, the ExampleConflictResolver's resolve method is called.
             * The `theirs` ReadOnlyDocument in the conflict resolver represents the current rev and `mine` is what's being saved.
             * 3. Read the document after the second save operation and verify its property is as expected.
             * The conflict resolver will have deleted the obsolete revision.
             */
            using (var theirs = new MutableDocument("buzz"))
                using (var mine = new MutableDocument("buzz")) {
                    theirs.SetString("status", "theirs");
                    mine.SetString("status", "mine");
                    database.Save(theirs);
                    database.Save(mine);
                }

            var conflictResolverResult = database.GetDocument("buzz");

            Console.WriteLine($"conflictResolverResult doc.status ::: {conflictResolverResult.GetString("status")}");

            // replication (Note: Linux / Mac requires .NET Core 2.0+ due to
            // https://github.com/dotnet/corefx/issues/8768)

            /*
             * Tested with SG 1.5 https://www.couchbase.com/downloads
             * Config file:
             * {
             *        "databases": {
             *          "db": {
             *            "server":"walrus:",
             *            "users": {
             *              "GUEST": {"disabled": false, "admin_channels": ["*"]}
             *            },
             *            "unsupported": {
             *              "replicator_2":true
             *            }
             *          }
             *        }
             *      }
             */
            var url         = new Uri("ws://localhost:4984/db");
            var replConfig  = new ReplicatorConfiguration(database, new URLEndpoint(url));
            var replication = new Replicator(replConfig);

            replication.Start();

            // replication change listener
            replication.AddChangeListener((sender, e) => {
                if (e.Status.Activity == ReplicatorActivityLevel.Stopped)
                {
                    Console.WriteLine("Replication has completed.");
                }
            });

            Console.ReadLine();

            // This is important to do because otherwise the native connection
            // won't be released until the next garbage collection
            query.Dispose();
            database.Dispose();
        }
コード例 #3
0
        public List <Information> Gets()
        {
            List <Information> informations = new List <Information>();

            IQuery query = QueryBuilder.Select(SelectResult.Expression(Expression.Property("payCode")))
                           .From(DataSource.Database(_dataBaseGetter.Get()))
                           .Where(Expression.Property("table").EqualTo(Expression.String("pays")));

            var rows = query.Execute();

            query = QueryBuilder.Select(SelectResult.Expression(Expression.Property("finCode")))
                    .From(DataSource.Database(_dataBaseGetter.Get()))
                    .Where(Expression.Property("table").EqualTo(Expression.String("typefinancement")));

            var rowsFin = query.Execute();

            query = QueryBuilder.Select(SelectResult.Expression(Expression.Property("sfaCode")))
                    .From(DataSource.Database(_dataBaseGetter.Get()))
                    .Where(Expression.Property("table").EqualTo(Expression.String("situationfamille")));

            var rowsSit = query.Execute();

            query = QueryBuilder.Select(SelectResult.Expression(Expression.Property("Num")))
                    .From(DataSource.Database(_dataBaseGetter.Get()))
                    .Where(Expression.Property("table").EqualTo(Expression.String("commune")));

            var rowsCom = query.Execute();

            query = QueryBuilder.Select(SelectResult.All())
                    .From(DataSource.Database(_dataBaseGetter.Get()))
                    .Where(Expression.Property("table").EqualTo(Expression.String("futuracquereur")));

            var rowsAq = query.Execute();

            query = QueryBuilder.Select(SelectResult.All())
                    .From(DataSource.Database(_dataBaseGetter.Get()))
                    .Where(Expression.Property("table").EqualTo(Expression.String("programme")));

            var rowsProg = query.Execute();

            query = QueryBuilder.Select(SelectResult.All())
                    .From(DataSource.Database(_dataBaseGetter.Get()))
                    .Where(Expression.Property("table").EqualTo(Expression.String("lot")));

            var rowsLot = query.Execute();

            query = QueryBuilder.Select(SelectResult.All())
                    .From(DataSource.Database(_dataBaseGetter.Get()))
                    .Where(Expression.Property("table").EqualTo(Expression.String("vendeur")));

            var rowsVdr = query.Execute();

            query = QueryBuilder.Select(SelectResult.All())
                    .From(DataSource.Database(_dataBaseGetter.Get()))
                    .Where(Expression.Property("table").EqualTo(Expression.String("constructeur")));

            var rowsCtr = query.Execute();

            query = QueryBuilder.Select(SelectResult.All())
                    .From(DataSource.Database(_dataBaseGetter.Get()))
                    .Where(Expression.Property("table").EqualTo(Expression.String("civilite")));

            var rowsCiv = query.Execute();

            query = QueryBuilder.Select(SelectResult.All())
                    .From(DataSource.Database(_dataBaseGetter.Get()))
                    .Where(Expression.Property("table").EqualTo(Expression.String("reservation")));

            var rowsRes = query.Execute();

            query = QueryBuilder.Select(SelectResult.All())
                    .From(DataSource.Database(_dataBaseGetter.Get()))
                    .Where(Expression.Property("table").EqualTo(Expression.String("option")));

            var rowsOpt = query.Execute();

            informations.Add(new Information()
            {
                Info = "Civilités", Quantite = rowsCiv.Count()
            });
            informations.Add(new Information()
            {
                Info = "Communes", Quantite = rowsCom.Count()
            });
            informations.Add(new Information()
            {
                Info = "Constructeurs", Quantite = rowsCtr.Count()
            });
            informations.Add(new Information()
            {
                Info = "Futurs Acquéreurs", Quantite = rowsAq.Count()
            });
            informations.Add(new Information()
            {
                Info = "Lots", Quantite = rowsLot.Count()
            });
            informations.Add(new Information()
            {
                Info = "Options", Quantite = rowsOpt.Count()
            });
            informations.Add(new Information()
            {
                Info = "Pays", Quantite = rows.Count()
            });
            informations.Add(new Information()
            {
                Info = "Programmes", Quantite = rowsProg.Count()
            });
            informations.Add(new Information()
            {
                Info = "Réservations", Quantite = rowsRes.Count()
            });
            informations.Add(new Information()
            {
                Info = "Situations Familiales", Quantite = rowsSit.Count()
            });
            informations.Add(new Information()
            {
                Info = "Types de financements", Quantite = rowsFin.Count()
            });
            informations.Add(new Information()
            {
                Info = "Vendeurs", Quantite = rowsVdr.Count()
            });

            return(informations);
        }
コード例 #4
0
        static void Main(string[] args)
        {
            // Get the database (and create it if it doesn't exist)
            var database = new Database("mydb");
            // Create a new document (i.e. a record) in the database
            string id = null;

            using (var mutableDoc = new MutableDocument())
            {
                mutableDoc.SetFloat("version", 2.0f)
                .SetString("type", "SDK");

                // Save it to the database
                database.Save(mutableDoc);
                id = mutableDoc.Id;
            }

            // Update a document
            using (var doc = database.GetDocument(id))
                using (var mutableDoc = doc.ToMutable())
                {
                    mutableDoc.SetString("language", "python");
                    database.Save(mutableDoc);

                    using (var docAgain = database.GetDocument(id))
                    {
                        Console.WriteLine($"Document ID :: {docAgain.Id}");
                        Console.WriteLine($"Learning {docAgain.GetString("language")}");
                    }
                }

            // Create a query to fetch documents of type SDK
            // i.e. SELECT * FROM database WHERE type = "SDK"
            using (var query = QueryBuilder.Select(SelectResult.All())
                               .From(DataSource.Database(database))
                               .Where(Expression.Property("type").EqualTo(Expression.String("SDK"))))
            {
                // Run the query
                var result = query.Execute();
                Console.WriteLine($"Number of rows :: {result.Count()}");
            }


            using (var query = QueryBuilder.Select(
                       SelectResult.Expression(Meta.ID),
                       SelectResult.Property("language"))
                               .From(DataSource.Database(database)))
            {
                foreach (var result in query.Execute())
                {
                    Console.WriteLine($"Document Name :: {result.GetString("language")}");
                }
            }

            // Create replicator to push and pull changes to and from the cloud
            var targetEndpoint = new URLEndpoint(new Uri("ws://localhost:4984/getting-started-db"));
            var replConfig     = new ReplicatorConfiguration(database, targetEndpoint);

            // Add authentication
            replConfig.Authenticator = new BasicAuthenticator("john", "pass");

            // Create replicator (make sure to add an instance or static variable
            // named _Replicator)
            var _Replicator = new Replicator(replConfig);

            _Replicator.AddChangeListener((sender, args) =>
            {
                if (args.Status.Error != null)
                {
                    Console.WriteLine($"Error :: {args.Status.Error}");
                }
            });
            //Path.Combine(AppContext.BaseDirectory, "CouchbaseLite");
            _Replicator.Start();
        }