public bool Upsert(BingoBall bingoBall)
{
var success = true;
try
{
string targetBall = null;
using (var query = QueryBuilder.Select(SelectResult.Expression(Meta.ID))
.From(DataSource.Database(_database))
.Where(Expression.Property("Name").EqualTo(Expression.String(bingoBall.Name))))
{
var resultArray = query.Execute().ToArray();
if (resultArray.Length > 0)
{
targetBall = resultArray[0].GetValue(0)?.ToString();
}
}
if (targetBall == null)
{
using var mutableDoc = new MutableDocument();
mutableDoc.SetString("Name", bingoBall.Name)
.SetBoolean("IsPlayed", false)
.SetBoolean("IsMatched", false)
.SetArray("PlayedBy", new MutableArrayObject())
.SetArray("MatchedBy", new MutableArrayObject());
_database.Save(mutableDoc);
}
else
{
MutableDocument doc = _database.GetDocument(targetBall)?.ToMutable();
doc.SetBoolean("IsPlayed", bingoBall.IsPlayed);
doc.SetBoolean("IsMatched", bingoBall.IsMatched);
doc.SetArray("PlayedBy", new MutableArrayObject(bingoBall.PlayedBy));
doc.SetArray("MatchedBy", new MutableArrayObject(bingoBall.MatchedBy));
_database.Save(doc);
}
}
catch (Exception e)
{
success = false;
}
return(success);
}
private void SetDocument(T entity, MutableDocument mutableDocument)
{
var properties = ObjectToDictionaryHelper.ToDictionary(entity);
foreach (var prop in properties)
{
if (prop.Value is int)
{
mutableDocument.SetInt(prop.Key, (int)prop.Value);
}
else if (prop.Value is long)
{
mutableDocument.SetLong(prop.Key, (long)prop.Value);
}
else if (prop.Value is bool)
{
mutableDocument.SetBoolean(prop.Key, (bool)prop.Value);
}
else if (prop.Value is DateTimeOffset)
{
if ((DateTimeOffset)prop.Value != default(DateTimeOffset))
{
mutableDocument.SetDate(prop.Key, (DateTimeOffset)prop.Value);
}
}
else if (prop.Value is double)
{
mutableDocument.SetDouble(prop.Key, (double)prop.Value);
}
else if (prop.Value is float)
{
mutableDocument.SetFloat(prop.Key, (float)prop.Value);
}
else if (prop.Value is string)
{
mutableDocument.SetString(prop.Key, (string)prop.Value);
}
else
{
mutableDocument.SetValue(prop.Key, prop.Value);
}
}
}
private static void DoBatchOperation()
{
var db = _Database;
// # tag::batch[]
db.InBatch(() =>
{
for (var i = 0; i < 10; i++)
{
using (var doc = new MutableDocument()) {
doc.SetString("type", "user");
doc.SetString("name", $"user {i}");
doc.SetBoolean("admin", false);
db.Save(doc);
Console.WriteLine($"Saved user document {doc.GetString("name")}");
}
}
});
// # end::batch[]
}
public void TestGetFragmentFromBoolean()
{
var doc = new MutableDocument("doc1");
doc.SetBoolean("boolean", true);
SaveDocument(doc, d =>
{
var fragment = d["boolean"];
fragment.Exists.Should().BeTrue("because this portion of the data exists");
fragment.String.Should().BeNull("because this fragment is not of this type");
fragment.Array.Should().BeNull("because this fragment is not of this type");
fragment.Dictionary.Should().BeNull("because this fragment is not of this type");
fragment.Int.Should().Be(1, "because that is the converted value");
fragment.Long.Should().Be(1L, "because that is the converted value");
fragment.Double.Should().Be(1.0, "because that is the converted value");
fragment.Float.Should().Be(1.0f, "because that is the converted value");
fragment.Boolean.Should().Be(true, "because that is the stored value");
fragment.Date.Should().Be(DateTimeOffset.MinValue, "because that is the default value");
fragment.Value.Should().NotBeNull("because this fragment has a value");
});
}
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();
}