internal override BsonDocument TranslateExpressionToFilter <TDocument>(
Expression <Func <TDocument, bool> > expression,
IBsonSerializer <TDocument> documentSerializer,
IBsonSerializerRegistry serializerRegistry)
{
return(PredicateTranslator.Translate <TDocument>(expression, documentSerializer, serializerRegistry));
}
private void TranslateWhere(WhereExpression node)
{
Translate(node.Source);
var predicateValue = PredicateTranslator.Translate(node.Predicate, _serializerRegistry);
_stages.Add(new BsonDocument("$match", predicateValue));
}
public void TranslateEnum_ShouldConvertToValueB()
{
Expression <Func <Dummy, bool> > predicateExpression = (d => d.SomeEnum == EnumDummy.B);
int?queryId;
var translatedPredicate = PredicateTranslator.Translate(predicateExpression, out queryId);
Assert.AreEqual(translatedPredicate, "SomeEnum=1");
}
public void Any_ShouldConvert_To_Where()
{
Expression <Func <Dummy, bool> > predicateExpression = (d => d.SomeValueList.Any(x => x.SomeInt == 100));
int?queryId;
var translatedPredicate = PredicateTranslator.Translate(predicateExpression, out queryId);
Assert.AreEqual(translatedPredicate, "!Dummy.SomeInt=100");
}
private void VisitWhere(WhereExpression node)
{
Visit(node.Source);
var renderedPredicate = PredicateTranslator.Translate(node.Predicate, _serializerRegistry);
_stages.Add(new BsonDocument("$match", renderedPredicate));
}
public void Assert <T>(IMongoCollection <T> collection, Expression <Func <T, bool> > filter, int expectedCount, BsonDocument expectedFilter)
{
var serializer = BsonSerializer.SerializerRegistry.GetSerializer <T>();
var filterDocument = PredicateTranslator.Translate(filter, serializer, BsonSerializer.SerializerRegistry);
var list = collection.FindSync(filterDocument).ToList();
filterDocument.Should().Be(expectedFilter);
list.Count.Should().Be(expectedCount);
}
public void Assert(Expression <Func <Root, bool> > filter, int expectedCount, string expectedFilter)
{
var serializer = BsonSerializer.SerializerRegistry.GetSerializer <Root>();
var filterDocument = PredicateTranslator.Translate(filter, serializer, BsonSerializer.SerializerRegistry);
var list = __collection.FindSync(filterDocument).ToList();
filterDocument.Should().Be(BsonDocument.Parse(expectedFilter));
list.Count.Should().Be(expectedCount);
}
public void Equals_with_non_nullable_field_and_nullable_value()
{
var value = (int?)null;
Expression <Func <Root, bool> > filter = d => d.Id == value;
var serializer = BsonSerializer.SerializerRegistry.GetSerializer <Root>();
var exception = Record.Exception(() => PredicateTranslator.Translate(filter, serializer, BsonSerializer.SerializerRegistry));
exception.Should().BeOfType <ArgumentException>();
}
public void Assert(Expression <Func <Root, bool> > filter, int expectedCount, BsonDocument expectedFilter)
{
var serializer = BsonSerializer.SerializerRegistry.GetSerializer <Root>();
var filterDocument = PredicateTranslator.Translate(filter, serializer, BsonSerializer.SerializerRegistry);
using (var cursor = _collection.FindAsync(filterDocument).GetAwaiter().GetResult())
{
var list = cursor.ToListAsync().GetAwaiter().GetResult();
filterDocument.Should().Be(expectedFilter);
list.Count.Should().Be(expectedCount);
}
}
/// <inheritdoc />
public override BsonDocument Render(IBsonSerializer <TDocument> documentSerializer, IBsonSerializerRegistry serializerRegistry)
{
return(PredicateTranslator.Translate <TDocument>(_expression, documentSerializer, serializerRegistry));
}