Spring data rest order by nested path with querydsl

Question

I want to order using Nested Path

Not working

curl -i -X GET  http://localhost:8080/api/appointment?sort=doctor.name,{desc|asc} // Not working

While this working

curl -i -X GET  http://localhost:8080/api/appointment?sort=appointmentDay,{desc/asc} // working

curl -i -X GET  http://localhost:8080/api/appointment?dcotor.name=Ahmed // working

Entity

public class Appointment implements Serializable {

    @Column(name = "appointment_day")
    @Future(message = "Day of appointment must be in the future!")
    @NotNull
    @Temporal(javax.persistence.TemporalType.TIMESTAMP)
    @JsonFormat(pattern = Constants.DATE_PATTEN)
    @DateTimeFormat(iso = ISO.DATE)
    private Date appointmentDay;

    @ManyToOne(optional = false)
    @JoinColumn(name = "doctor_id", nullable = false)
    private Doctor doctor;
    // Other properties 
    //
}

Repository

@RepositoryRestResource(path = "appointment", collectionResourceRel = "data", excerptProjection = AppointmentExcerpt.class)
public interface AppointmentRepo extends JpaRepository<Appointment, Long>, 
QueryDslPredicateExecutor<Appointment>, QuerydslBinderCustomizer<QAppointment> {}

Update paging-and-sorting.adoc

Sorting by linkable associations (i.e. resources to top-level resources) is not supported.

But i see that was fixed here

Update Added 3.0.0.M2 which reported that issue fixed, But still Not working

Changes in version 3.0.0.M2 (2017-04-04)

• DATAREST-976 - Sorting by an embedded property no longer works in Ingalls RC1.

<repositories>

    <repository>
        <id>spring-milestones</id>
        <name>Spring Milestones</name>
        <url>http://repo.spring.io/milestone</url>
        <snapshots>
            <enabled>false</enabled>
        </snapshots>
    </repository>
    <repository>
        <id>spring-snapshots</id>
        <name>Spring Snapshots</name>
        <url>http://repo.spring.io/snapshot</url>
        <snapshots>
            <enabled>true</enabled>
        </snapshots>
    </repository>
    <repository>
        <id>rabbit-milestones</id>
        <name>Rabbit Milestones</name>
        <url>https://dl.bintray.com/rabbitmq/maven-milestones</url>
        <snapshots>
            <enabled>false</enabled>
        </snapshots>
    </repository>
</repositories>

<dependency>
        <groupId>org.springframework.data</groupId>
        <artifactId>spring-data-jpa</artifactId>
        <version>2.0.0.M3</version>
    </dependency>

    <dependency>
        <groupId>org.springframework.data</groupId>
        <artifactId>spring-data-rest-webmvc</artifactId>
        <version>3.0.0.M3</version>
    </dependency>

Answer 1

Just downgraded spring.data.‌​rest.webmvc to Hopper release

<spring.data.jpa.version>1.10.10.RELEASE</spring.data.jpa.version>
<spring.data.rest.webmvc.version>2.5.10.RELEASE</spring.data.rest.webmvc.version>

/api/appointment?sort=doctor.name,{desc|asc} // works with (.)
/api/appointment?sort=doctor_name,{desc|asc} // works too  with (_)

Thanks @Alan Hay comment on this question

Ordering by nested properties works fine for me in the Hopper release but I did experience the following bug in an RC version of the Ingalls release.bug in an RC version of the Ingalls release. This is reported as being fixed,

• jira issue - Sorting by an embedded property no longer works in Ingalls RC1

BTW, I tried v3.0.0.M3 that reported that fixed but not working with me.