/// <summary> /// This is an internal API that supports the Entity Framework Core infrastructure and not subject to /// the same compatibility standards as public APIs. It may be changed or removed without notice in /// any release. You should only use it directly in your code with extreme caution and knowing that /// doing so can result in application failures when updating to a new Entity Framework Core release. /// </summary> public virtual Expression BindNavigation(INavigation navigation, bool clientEval) { if (!EntityType.IsAssignableFrom(navigation.DeclaringEntityType) && !navigation.DeclaringEntityType.IsAssignableFrom(EntityType)) { throw new InvalidOperationException( $"Called EntityProjectionExpression.GetNavigation() with incorrect INavigation. EntityType:{EntityType.DisplayName()}, Navigation:{navigation.Name}"); } if (!_navigationExpressionsCache.TryGetValue(navigation, out var expression)) { if (navigation.IsCollection()) { expression = new ObjectArrayProjectionExpression(navigation, AccessExpression); } else { expression = new EntityProjectionExpression( navigation.GetTargetType(), new ObjectAccessExpression(navigation, AccessExpression)); } _navigationExpressionsCache[navigation] = expression; } if (!clientEval && expression.Name.Length == 0) { // Non-persisted navigation can't be translated return(null); } return((Expression)expression); }
/// <summary> /// This is an internal API that supports the Entity Framework Core infrastructure and not subject to /// the same compatibility standards as public APIs. It may be changed or removed without notice in /// any release. You should only use it directly in your code with extreme caution and knowing that /// doing so can result in application failures when updating to a new Entity Framework Core release. /// </summary> public virtual Expression BindNavigation([NotNull] INavigation navigation, bool clientEval) { if (!EntityType.IsAssignableFrom(navigation.DeclaringEntityType) && !navigation.DeclaringEntityType.IsAssignableFrom(EntityType)) { throw new InvalidOperationException( CoreStrings.EntityProjectionExpressionCalledWithIncorrectInterface( "GetNavigation", nameof(INavigation), EntityType.DisplayName(), $"Navigation:{navigation.Name}")); } if (!_navigationExpressionsCache.TryGetValue(navigation, out var expression)) { if (navigation.IsCollection) { expression = new ObjectArrayProjectionExpression(navigation, AccessExpression); } else { expression = new EntityProjectionExpression( navigation.TargetEntityType, new ObjectAccessExpression(navigation, AccessExpression)); } _navigationExpressionsCache[navigation] = expression; } if (!clientEval && expression.Name.Length == 0) { // Non-persisted navigation can't be translated return(null); } return((Expression)expression); }
/// <summary> /// This is an internal API that supports the Entity Framework Core infrastructure and not subject to /// the same compatibility standards as public APIs. It may be changed or removed without notice in /// any release. You should only use it directly in your code with extreme caution and knowing that /// doing so can result in application failures when updating to a new Entity Framework Core release. /// </summary> public virtual Expression BindNavigation(INavigation navigation) { if (!EntityType.IsAssignableFrom(navigation.DeclaringEntityType) && !navigation.DeclaringEntityType.IsAssignableFrom(EntityType)) { throw new InvalidOperationException( $"Called EntityProjectionExpression.GetNavigation() with incorrect INavigation. EntityType:{EntityType.DisplayName()}, Navigation:{navigation.Name}"); } if (!_navigationExpressionsCache.TryGetValue(navigation, out var expression)) { if (navigation.IsCollection()) { expression = new ObjectArrayProjectionExpression(navigation, AccessExpression); } else { expression = new EntityProjectionExpression( navigation.GetTargetType(), new ObjectAccessExpression(navigation, AccessExpression)); } _navigationExpressionsCache[navigation] = expression; } return(expression); }
/// <summary> /// This is an internal API that supports the Entity Framework Core infrastructure and not subject to /// the same compatibility standards as public APIs. It may be changed or removed without notice in /// any release. You should only use it directly in your code with extreme caution and knowing that /// doing so can result in application failures when updating to a new Entity Framework Core release. /// </summary> protected override Expression VisitObjectArrayProjection(ObjectArrayProjectionExpression objectArrayProjectionExpression) { Check.NotNull(objectArrayProjectionExpression, nameof(objectArrayProjectionExpression)); _sqlBuilder.Append(objectArrayProjectionExpression); return(objectArrayProjectionExpression); }
private Expression TryBindMember(Expression source, MemberIdentity member) { if (!(source is EntityReferenceExpression entityReferenceExpression)) { return(null); } var result = member.MemberInfo != null ? entityReferenceExpression.ParameterEntity.BindMember(member.MemberInfo, entityReferenceExpression.Type, clientEval : false, out _) : entityReferenceExpression.ParameterEntity.BindMember(member.Name, entityReferenceExpression.Type, clientEval: false, out _); return(result switch { EntityProjectionExpression entityProjectionExpression => new EntityReferenceExpression(entityProjectionExpression), ObjectArrayProjectionExpression objectArrayProjectionExpression => new EntityReferenceExpression(objectArrayProjectionExpression.InnerProjection), _ => result });
/// <summary> /// This is an internal API that supports the Entity Framework Core infrastructure and not subject to /// the same compatibility standards as public APIs. It may be changed or removed without notice in /// any release. You should only use it directly in your code with extreme caution and knowing that /// doing so can result in application failures when updating to a new Entity Framework Core release. /// </summary> protected abstract Expression VisitObjectArrayProjection(ObjectArrayProjectionExpression objectArrayProjectionExpression);
/// <summary> /// This is an internal API that supports the Entity Framework Core infrastructure and not subject to /// the same compatibility standards as public APIs. It may be changed or removed without notice in /// any release. You should only use it directly in your code with extreme caution and knowing that /// doing so can result in application failures when updating to a new Entity Framework Core release. /// </summary> public virtual int AddToProjection(ObjectArrayProjectionExpression objectArrayProjection) => AddToProjection(objectArrayProjection, null);
/// <summary> /// This is an internal API that supports the Entity Framework Core infrastructure and not subject to /// the same compatibility standards as public APIs. It may be changed or removed without notice in /// any release. You should only use it directly in your code with extreme caution and knowing that /// doing so can result in application failures when updating to a new Entity Framework Core release. /// </summary> protected override Expression VisitObjectArrayProjection(ObjectArrayProjectionExpression objectArrayProjectionExpression) { _sqlBuilder.Append(objectArrayProjectionExpression); return(objectArrayProjectionExpression); }