grails 3-获取子域对象

Question

I have looked at this Grails get child domain objects but I am still lost.

I have added to conf/application.yml

converters:
    encoding: UTF-8
    grails.converters.json.default.deep: true

But when I do a get on a domain, I still get

[~]$ curl http://localhost:8080/request/2 {"id":2,"stream":{"id":2},"release_label":"ABC_4.3","date_created":"2017-08-21T13:06:27Z","envs":[{"id":1}],"status":"init"}

I want stream and envs to be expanded to give all of the records, not just the id.

So Request,groovy is

And Stream.groovy is

package test
import grails.rest.*
class Stream {
    String name
    String feedgroup
    String description
    UnixGroup unixgroup
    String swid
    boolean powercentre = false
    String latest_release
    static hasMany = [envs: Env]

    static constraints = {
          name blank:false, unique: true
    }
}

package test
import grails.rest.*

class Request {
    Date date_created = new Date()
    Date date_completed
    String status = "init"
    String release_label
    Stream stream
    static hasMany = [envs: Env]

    static constraints = {
           date_completed nullable: true
    }
        static searchable = {
            only = [ 'stream', 'status' ]
        }
}

I am using Grails 3.30.

Is grails.converters.json.default.deep still valid for Grails 3? And how do I use it.

Answer 1

I have been told on the grails slack page that converters are not used when the application profile is rest-api.

Instead JSON views should be used. In the render, add an option deep: true

eg

json g.render(book, [deep:true])

where book is the domain

For further info, see http://views.grails.org/latest/#_rendering_domain_classes

Answer 2

grails.converters.json.default.deep

Should be changed to just:

json.default.deep

as you are already in the grails.converters block.

So it should look like:

converters:
    encoding: UTF-8
    json.default.deep: true