usage-embedded-documents.md

Working with embedded documents

This extension does not provide any special way to work with embedded documents (sub-documents) at the moment. General recommendation is avoiding it if possible. For example: instead of:

{
    content: "some content",
    author: {
        name: author1,
        email: [email protected]
    }
}

use following:

{
    content: "some content",
    author_name: author1,
    author_email: [email protected]
}

Yii Model designed assuming single attribute is a scalar. Validation and attribute processing based on this suggestion. Still any attribute can be an array of any depth and complexity, however you should handle its validation on your own.

While there is no explicit support for embedded documents, there is also no explicit restriction on it. You may create your own solution or use third-party extension like yii2tech/embedded for this feature.