How to get relationship data for REST?

[jungyuyu]

I need GET the user post list, request url as follow:
http://domain/restapi/users/1/posts

I add getPosts() in /models/User.php
public function getPosts()
{
return $this->hasMany(Post::className(), ['author_ID' => 'ID']);
}

But does not work, need modify urlManager? or extend some method()?
how to do it? guide me, please!

My tables as follow:
CREATE TABLE yii2_user (
ID bigint(20) unsigned NOT NULL AUTO_INCREMENT,
...
)

CREATE TABLE yii2_post (
ID bigint(20) unsigned NOT NULL AUTO_INCREMENT,
author_ID bigint(20) unsigned NOT NULL DEFAULT '0',
...
)

Best regards,

[Ragazzo]

you can use expand parameter, see this info in rest guide. However getting particular one info about related model is not supported now, so this issue can be open i think for further discussion @qiangxue ?

[jungyuyu]

Thanks Ragazzo,

I modified /models/User.php to add extraFields() etc as follow:

public function extraFields()
{
return ['posts'];
}

and request GET http://domain/restapi/users/1?expand=posts

It's work fine, but not enough to support multilevel data for REST, e.g.
Just GET one http://domain/restapi/users/1/posts/123

Because i use AngularJS to design client, and AngularJS have full REST feature:
https://github.com/mgonto/restangular

If Yii2 can full support, it's really great!

[Ragazzo]

@jungyuyu well, it will have support once somone from core or other developers will have time for that ) you also can submit PR if ;) Lets keep this issue open for this feature discussion.

[cebe]

duplicate of #3303