コード例 #1
0
        public static bool NotStartsWith(
            FilterOperation operation,
            IInputType type,
            IValueNode value,
            IQueryableFilterVisitorContext context,
            [NotNullWhen(true)] out Expression?result)
        {
            object parsedValue = type.ParseLiteral(value);

            if (parsedValue == null)
            {
                context.ReportError(
                    ErrorHelper.CreateNonNullError(operation, type, value, context));

                result = null;
                return(false);
            }

            if (operation.Type == typeof(string) &&
                type.IsInstanceOfType(value))
            {
                Expression property = GetProperty(operation, context);
                result = FilterExpressionBuilder.Not(
                    FilterExpressionBuilder.StartsWith(property, parsedValue));

                return(true);
            }
            else
            {
                throw new InvalidOperationException();
            }
        }
コード例 #2
0
        public bool TryHandle(
            FilterOperation operation,
            IInputType type,
            IValueNode value,
            Expression instance,
            ITypeConversion converter,
            out Expression expression)
        {
            if (operation.Type == typeof(string) && value is StringValueNode s)
            {
                MemberExpression property =
                    Expression.Property(instance, operation.Property);

                switch (operation.Kind)
                {
                case FilterOperationKind.Equals:
                    expression = FilterExpressionBuilder.Equals(
                        property, s.Value);
                    return(true);

                case FilterOperationKind.NotEquals:
                    expression = FilterExpressionBuilder.Not(
                        FilterExpressionBuilder.Equals(property, s.Value)
                        );
                    return(true);

                case FilterOperationKind.StartsWith:
                    expression = FilterExpressionBuilder.StartsWith(
                        property, s.Value);
                    return(true);

                case FilterOperationKind.EndsWith:
                    expression = FilterExpressionBuilder.EndsWith(
                        property, s.Value);
                    return(true);

                case FilterOperationKind.NotStartsWith:
                    expression = FilterExpressionBuilder.Not(
                        FilterExpressionBuilder.StartsWith(
                            property, s.Value)
                        );
                    return(true);

                case FilterOperationKind.NotEndsWith:
                    expression = FilterExpressionBuilder.Not(
                        FilterExpressionBuilder.EndsWith(property, s.Value)
                        );
                    return(true);

                case FilterOperationKind.Contains:
                    expression = FilterExpressionBuilder.Contains(
                        property, s.Value);
                    return(true);

                case FilterOperationKind.NotContains:
                    expression = FilterExpressionBuilder.Not(
                        FilterExpressionBuilder.Contains(property, s.Value)
                        );
                    return(true);
                }
            }

            if (operation.Type == typeof(string) && value is ListValueNode li)
            {
                MemberExpression property =
                    Expression.Property(instance, operation.Property);
                var parsedValue = type.ParseLiteral(value);

                switch (operation.Kind)
                {
                case FilterOperationKind.In:
                    expression = FilterExpressionBuilder.In(
                        property,
                        operation.Property.PropertyType,
                        parsedValue);
                    return(true);

                case FilterOperationKind.NotIn:
                    expression = FilterExpressionBuilder.Not(
                        FilterExpressionBuilder.In(
                            property,
                            operation.Property.PropertyType,
                            parsedValue));
                    return(true);
                }
            }

            expression = null;
            return(false);
        }