Magento 2.1 – Using the Entity Manager

crudentity-managermagento-2.1magento2

From 2.1 Magento has introduced Magento/Framework/Model/EntityManager

I may be wrong here but from my understanding it is to replace Magento/Framework/Model/AbstractModel which was implementing the feature via inheritance and solve this via composition (FYI : https://en.m.wikipedia.org/wiki/Composition_over_inheritance )

You can get an example here in the core files: https://github.com/magento/magento2/blob/59671558ecdab652b40db2d1a7c63d5b1dea0a92/app/code/Magento/Cms/Model/ResourceModel/Block.php

Basically all the CRUD operations are explicitly declared in the class and deferred to the EntityManager class. Before 2.1, the parent method was called via inheritance.

So my questions are:

  • what are the benefits of the EntityManager over the pre 2.1 inheritance system?
  • is simply declaring the CRUD methods (like the example above) enough to start implementing it in a custom CRUD module or is there more?

Best Answer

Currently, we do not recommend to use EntityManager for your entities as it's an unfinished feature and we plan to make configuration more declarative.

Ideas of EntityManager are:

  • allow persist Data Entity by the interface (no need to extends from abstract classes)
  • make persistent explicit extensible
  • modularity
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