Question

我试图在spring数据mongoDB中强制执行此查询：

descendants

但是，delete []array;列表不包含50 minutes 1 hour 40 minutes 1 day 2 hours 20 minutes字段。 javascript查询在mongo shell中完美运行。

我做错了什么？

Answer 1

我得到了我的工作。你可以尝试这个让它为你工作。

TypedAggregation是一个包含信息的特殊聚合输入聚合类型。

public void graphLookupShouldBeAppliedCorrectly() {

    assumeTrue(mongoVersion.isGreaterThanOrEqualTo(THREE_DOT_FOUR));

    Employee em1 = Employee.builder().id(1).name("Dev").build();
    Employee em2 = Employee.builder().id(2).name("Eliot").reportsTo("Dev").build();
    Employee em4 = Employee.builder().id(4).name("Andrew").reportsTo("Eliot").build();

    mongoTemplate.insert(Arrays.asList(em1, em2, em4), Employee.class);

    TypedAggregation<Employee> agg = Aggregation.newAggregation(Employee.class,
            match(Criteria.where("name").is("Andrew")), //
            Aggregation.graphLookup("employee") //
                    .startWith("reportsTo") //
                    .connectFrom("reportsTo") //
                    .connectTo("name") //
                    .depthField("depth") //
                    .maxDepth(5) //
                    .as("reportingHierarchy"));

    AggregationResults<Document> result = mongoTemplate.aggregate(agg, Document.class);

    Document object = result.getUniqueMappedResult();
    List<Object> list = (List<Object>) object.get("reportingHierarchy");

    assertThat(object, isBsonObject().containing("reportingHierarchy", List.class));
    assertThat((Document) list.get(0), isBsonObject().containing("name", "Dev").containing("depth", 1L));
    assertThat((Document) list.get(1), isBsonObject().containing("name", "Eliot").containing("depth", 0L));
}

spring data mongodb：graphlookup查询不包含as-field

1 个答案: