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Magento 2 - Difference between Model, ResourceModel. Collection and Repository

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1

1

I'm studying Magento and I'm confusing about the differences between these four layers. What I have understood is the following:

Model

Is the entity class with ONLY getters/setters and magic methods.

ResourceModel

Is the layer responsible of C.R.U.D operations. This class should contains ONLY the _construct method to map my entity with the database table.

Collection

As the name suggested, it's a class that implements IterableInterface and give me only a list of Entity.

Repository

It's a class that expose API methods to the external and it's also used to execute operations to database. It's used to save/load/delete entity (internally I think that for these CRUD operations it should use the ResourceModel) and to expose methods to get collections of results.

EntityNameInterface

It's the interface that Model should implement.

EntityNameRepositoryInterface

It's the interface that Repository should implement.

But not all Magento modules work in this way, so there are modules that don't use this approach yet, but for compatibility reasons they use the old approach. Is it correct what I learned to it?

magento2 model service-contract

share|improve this question

edited 6 hours ago

Mirko Rapisarda

asked 6 hours ago

Mirko RapisardaMirko Rapisarda

536

add a comment | 

1

1

I'm studying Magento and I'm confusing about the differences between these four layers. What I have understood is the following:

Model

Is the entity class with ONLY getters/setters and magic methods.

ResourceModel

Is the layer responsible of C.R.U.D operations. This class should contains ONLY the _construct method to map my entity with the database table.

Collection

As the name suggested, it's a class that implements IterableInterface and give me only a list of Entity.

Repository

It's a class that expose API methods to the external and it's also used to execute operations to database. It's used to save/load/delete entity (internally I think that for these CRUD operations it should use the ResourceModel) and to expose methods to get collections of results.

EntityNameInterface

It's the interface that Model should implement.

EntityNameRepositoryInterface

It's the interface that Repository should implement.

But not all Magento modules work in this way, so there are modules that don't use this approach yet, but for compatibility reasons they use the old approach. Is it correct what I learned to it?

magento2 model service-contract

share|improve this question

edited 6 hours ago

Mirko Rapisarda

asked 6 hours ago

Mirko RapisardaMirko Rapisarda

536

add a comment | 

I'm studying Magento and I'm confusing about the differences between these four layers. What I have understood is the following:

Model

Is the entity class with ONLY getters/setters and magic methods.

ResourceModel

Is the layer responsible of C.R.U.D operations. This class should contains ONLY the _construct method to map my entity with the database table.

Collection

As the name suggested, it's a class that implements IterableInterface and give me only a list of Entity.

Repository

It's a class that expose API methods to the external and it's also used to execute operations to database. It's used to save/load/delete entity (internally I think that for these CRUD operations it should use the ResourceModel) and to expose methods to get collections of results.

EntityNameInterface

It's the interface that Model should implement.

EntityNameRepositoryInterface

It's the interface that Repository should implement.

But not all Magento modules work in this way, so there are modules that don't use this approach yet, but for compatibility reasons they use the old approach. Is it correct what I learned to it?

magento2 model service-contract

share|improve this question

edited 6 hours ago

Mirko Rapisarda

asked 6 hours ago

Mirko RapisardaMirko Rapisarda

536

share|improve this question

edited 6 hours ago

Mirko Rapisarda

asked 6 hours ago

Mirko RapisardaMirko Rapisarda

536

share|improve this question

edited 6 hours ago

Mirko Rapisarda

asked 6 hours ago

Mirko RapisardaMirko Rapisarda

536

asked 6 hours ago

Mirko RapisardaMirko Rapisarda

536

asked 6 hours ago

Mirko RapisardaMirko Rapisarda

536