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Example code of cheesegrits/laravel-pivot-events

Informations about the package laravel-pivot-events

Laravel Pivot Events

This package introduces new eloquent events for sync(), attach(), detach() or updateExistingPivot() methods on BelongsToMany relation.

This package is based on the laravel-pivot package by Filip Horvat. The original package is abandoned and does not work with Laravel 13.

Laravel Problems

In Laravel events are not dispatched when a BelongsToMany relation (pivot table) is updated with sync(), attach(), detach() or updateExistingPivot() methods, but this package will help with that.

Version Compatibility

Compatible with Laravel 11.0 or higher.

Install

1.Install package with composer

With this statement, a composer will install highest available package version for your current laravel version.

2.Use Cheesegrits\Laravel\PivotEvents\Traits\PivotEventTrait trait in your base model or only in particular models.

and that's it, enjoy.

New eloquent events

New events are :

The best way to catch events is with a model observer:

Or with a boot method:

You can also see those events here:

Supported relations

BelongsToMany and MorphToMany

Which events are dispatched and when they are dispatched

Four BelongsToMany methods dispatches events from this package:

attach()
Dispatches one pivotAttaching and one pivotAttached event.
Even when more rows are added only one event is dispatched for all rows but in that case, you can see all changed row ids in the $pivotIds variable, and the changed row ids with attributes in the $pivotIdsAttributes variable.

detach()
Dispatches one pivotDetaching and one pivotDetached event.
Even when more rows are deleted only one event is dispatched for all rows but in that case, you can see all changed row ids in the $pivotIds variable.

updateExistingPivot()
Dispatches one pivotUpdating and one pivotUpdated event.
You can change only one row in the pivot table with updateExistingPivot.

sync()
Dispatches more pivotAttaching and more pivotAttached events, depending on how many rows are added in the pivot table. These events are not dispatched if nothing is attached.
Dispatches one pivotDetaching and one pivotDetached event, but you can see all deleted ids in the $pivotIds variable. This event is not dispatched if nothing is detached.
Dispatches more pivotUpdating and more pivotUpdated events, depending on how many rows are updated in the pivot table. These events are not dispatched if nothing is attached.

E.g. when you call sync() if two rows are added and two are deleted two pivotAttaching and two pivotAttached events and one pivotDetaching and one pivotDetached event will be dispatched.
If sync() is called but rows are not added or deleted events are not dispatched.

Usage

We have three tables in database users(id, name), roles(id, name), role_user(user_id, role_id). We have two models :

Attaching

For attach() or detach() one event is dispatched for both pivot ids.

Attaching with int

Running this code

You will see this output

Attaching with array

Running this code

You will see this output

Attaching with model

Running this code

You will see this output

Attaching with collection

Running this code

You will see this output

Attaching with array (id => attributes)

Running this code

You will see this output

Syncing:

For sync() method event is dispatched for each pivot row.

Running this code

You will see this output

Detaching:

Running this code

You will see this output

Updating:

Running this code

You will see this output

License

MIT

Free Software, Hell Yeah!

All versions of laravel-pivot-events with dependencies

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Package Version
Requires illuminate/database Version ^11.0|^12.0|^13.0
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