public void AutoIndexEngine_Test()
{
using (var db = new LiteEngine(new MemoryStream()))
{
var doc = new BsonDocument
{
["name"] = "john doe",
["age"] = 40
};
db.Insert("people", doc);
var result = db.FindOne("people",
Query.And(
Query.EQ("name", "john doe"),
Query.EQ("age", 40)));
Assert.AreEqual(doc["name"], result["name"]);
var indexName = db.GetIndexes("people").FirstOrDefault(x => x.Field == "name");
var indexAge = db.GetIndexes("people").FirstOrDefault(x => x.Field == "age");
// indexes are not unique (by default, when using LiteEngine)
Assert.AreEqual(false, indexName.Unique);
Assert.AreEqual(false, indexAge.Unique);
}
}
static void Main(string[] args)
{
var orig = @"C:\Git\LiteDB\LiteDB.Shell\bin\Debug\net40\teste.db";
using (var db = new LiteEngine(orig))
{
var col = db.GetCollectionNames().First();
var tt = db.FindAll(col).ToArray();
var c = db.FindOne("DataObjects_1", Query.EQ("_id", "qyeyeW.1oMJK5"));
Console.WriteLine(c == null);
}
//{
// // reading all database
// foreach (var col in db.GetCollectionNames())
// {
// Console.WriteLine("Collection: " + col);
//
//
// foreach (var doc in db.Find(col, Query.All("Token.LastUsedOn")).Take(10))
// {
// Console.WriteLine(JsonSerializer.Serialize(doc, true));
// // ok
// }
// }
//}
Console.WriteLine("End.");
Console.ReadKey();
}
public void AutoId_No_Duplicate_After_Delete()
{
// using strong type
using (var db = new LiteDatabase(new MemoryStream()))
{
var col = db.GetCollection <EntityInt>("col1");
col.EnsureIndex(x => x.Name);
col.Insert(new EntityInt {
Name = "One"
});
col.Insert(new EntityInt {
Name = "Two"
});
var one = col.FindOne(x => x.Name == "One");
var two = col.FindOne(x => x.Name == "Two");
Assert.AreEqual(1, one.Id);
Assert.AreEqual(2, two.Id);
// now delete first 2 rows
col.Delete(one.Id);
col.Delete(two.Id);
// and insert new documents
col.Insert(new EntityInt {
Name = "Three"
});
col.Insert(new EntityInt {
Name = "Four"
});
var three = col.FindOne(x => x.Name == "Three");
var four = col.FindOne(x => x.Name == "Four");
Assert.AreEqual(3, three.Id);
Assert.AreEqual(4, four.Id);
}
// using bsondocument/engine
using (var db = new LiteEngine(new MemoryStream()))
{
db.EnsureIndex("col", "Name");
db.Insert("col", new BsonDocument {
["Name"] = "One"
}, BsonType.Int32);
db.Insert("col", new BsonDocument {
["Name"] = "Two"
}, BsonType.Int32);
var one = db.FindOne("col", Query.EQ("Name", "One"));
var two = db.FindOne("col", Query.EQ("Name", "Two"));
Assert.AreEqual(1, one["_id"].AsInt32);
Assert.AreEqual(2, two["_id"].AsInt32);
// now delete first 2 rows
db.Delete("col", one["_id"].AsInt32);
db.Delete("col", two["_id"].AsInt32);
// and insert new documents
db.Insert("col", new BsonDocument {
["Name"] = "Three"
}, BsonType.Int32);
db.Insert("col", new BsonDocument {
["Name"] = "Four"
}, BsonType.Int32);
var three = db.FindOne("col", Query.EQ("Name", "Three"));
var four = db.FindOne("col", Query.EQ("Name", "Four"));
Assert.AreEqual(3, three["_id"].AsInt32);
Assert.AreEqual(4, four["_id"].AsInt32);
}
}