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Embedded Mapping

This chapter explains how embedded documents are mapped in Doctrine.

Embed One

Embed a single document:

Embed Many

Embed many documents:

Mixing Document Types

If you want to store different types of embedded documents in the same field, you can simply omit the targetDocument option:

Now the $tasks property can store any type of document! The class name will be automatically stored in a field named _doctrine_class_name within the embedded document. The field name can be customized with the discriminatorField option:

You can also specify a discriminator map to avoid storing the fully qualified class name in each embedded document:

Cascading Operations

All operations on embedded documents are automatically cascaded. This is because embedded documents are part of their parent document and cannot exist without those by nature.

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