Spring Data-Rest POST 到子资源 [英] Spring Data-Rest POST to sub-resource

问题描述

假设我有以下结构:

@Entity
class Person extends AbstractPersistable<Long> {

    String name
    String surname
}

@Entity
class Task extends AbstractPersistable<Long> {

    String description

    @ManyToOne
    Person person
}

如果我遵循适当的 HAL 准则，我就不应该公开实体 ID.由于我没有双向关系，我不能将 PUT 或 PATCH 转换为 http://localhost:8080/persons.

If I follow proper HAL guidelines I'm not supposed to expose entity id's. Since I don't have a bi-directional relationship I cant PUT or PATCH to http://localhost:8080/persons.

即使我确实创建了关系，我也可能不想先将 POST Task 发送到 /tasks 然后PUT 到 /persons，(移动客户端会杀了我).但即便如此，我也没有返回实体的 Task ID，因此我可以将 PUT 发送到 Person 实体.(我显然可以进行字符串解析，但我认为这不合适).

Even if I did create the relation, I probably wouldn't want to first POST the Task to /tasks and then PUT to /persons, (mobile clients are going to kill me). But even then I don't have the Task ID even from the returned Entity so I can PUT to the Person entity. (I obviously can string parse but I don't think it's appropriate).

我可能也不希望 Person 实体中有 1000 个任务的列表.所以不导出 Task 实体并不是一个真正的选择(这意味着 PATCH 将不起作用)

I probably wouldnt want to have a list of 1000 tasks in the Person entity either. So not exporting the Task entity is not really an option (and this means PATCH will not work)

那么，如果我无法获取他的 ID，我该如何将 Person 与 Task 关联起来?正确的做法是什么?

So how am I supposed to associate the Person with the Task if I cannot get his id? What is the correct approach?

推荐答案

如果您想将任务与人员关联，您需要该人员的链接.

If you want to associate a Task with a Person you need the link to the person.

假设人 URI 是 http://localhost/persons/1

然后您可以通过在 person 属性中传递该 URI 来将该人分配给任务.

Then you could assign the person to a task by just passing that URI in the person attribute.

因此，Task 的帖子可能如下所示:

So a post to Task could look like this:

{
  "description": "some text",
  "person": "http://localhost/persons/1"
}

Spring-data-rest 将查找人员并处理其余部分.

Spring-data-rest will lookup the person and take care of the rest.

这篇关于Spring Data-Rest POST 到子资源的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！