Don't require Eloquent for storing and retrieving of events

[riasvdv]

This refactor / implementation allows you to have a different storage model other than Eloquent. For example, a simple QueryStoredEventRepository that runs mysql queries would be far more performant on millions of events than building Eloquent models for them.

This PR does the following things:

• Adds a stored_event_repository key in the config
• An event repository must implement the StoredEventRepository interface
• All internal model calls have been refactored to a StoredEventData model that has the necessary data
• An EloquentStoredEventRepository has been added to keep the default implementation, the StoredEvent model is now only used in this specific implementation, custom StoredEvent models still need to extend this.
• An OtherEloquentStoredEventRepository is added in the tests to test the implementation

Upgrade guide

• Remove the stored_event_model config key from your event-projector.php config file
• Add a stored_event_repository config key with the following value: \Spatie\EventProjector\EloquentStoredEventRepository::class
• If you're using a different model for event storage:
  1. The \Spatie\EventProjector\Models\StoredEvent::class has been renamed to \Spatie\EventProjector\Models\EloquentStoredEvent::class
  2. Extend the \Spatie\EventProjector\EloquentStoredEventRepository and change the $storedEventModel property with your own model that extends \Spatie\EventProjector\Models\EloquentStoredEvent
  3. Change the stored_event_repository config value with your own repository

[riasvdv]

Would be great if this could be tested in an existing project that uses Event Projector before we merge this, although the tests seem pretty complete, this is a pretty drastic change.

[freekmurze]

I’ll take a look when I get back. Feel free to do breaking changes, I don’t mind us tagging a v3 if we provide simple upgrade instructions.

[Gummibeer]

💙🎉👍 14eeb4a

[freekmurze]

Already looks really good 👍

The reason why we do this change is to make the package a bit more flexible when storing a lot of events. With the current changes, users with a large event store might still run into trouble. We need to fix this.

[freekmurze]

@riasvdv Could you also test this out by updating the larabank apps?
https://github.com/spatie/larabank-event-projector
https://github.com/spatie/larabank-event-projector-aggregates

Just use dev-master of this package in those app. Feel free to make commits on the master branch of the apps.

[riasvdv]

Just tested both Larabank applications with the version in this branch, all functionality still works 🎉

@freekmurze Could you go over this one more time? Then we can tag v3

[freekmurze]

Epic PR, thanks @riasvdv

[sebastiandedeyne]

💪 💪