Define causer for runtime | laravel-activitylog | Spatie

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  Laravel Activity Log
=======================

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  [Docs](https://spatie.be/docs)  [Laravel-activitylog](https://spatie.be/docs/laravel-activitylog/v5)  Advanced-usage  Define causer for runtime

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 Other versions for crawler [v5](https://spatie.be/docs/laravel-activitylog/v5) [v4](https://spatie.be/docs/laravel-activitylog/v4) [v3](https://spatie.be/docs/laravel-activitylog/v3) [v2](https://spatie.be/docs/laravel-activitylog/v2) [v1](https://spatie.be/docs/laravel-activitylog/v1)

  Define causer for runtime
- [ Introduction ](https://spatie.be/docs/laravel-activitylog/v5/introduction)
- [ Support us ](https://spatie.be/docs/laravel-activitylog/v5/support-us)
- [ Requirements ](https://spatie.be/docs/laravel-activitylog/v5/requirements)
- [ Installation and Setup ](https://spatie.be/docs/laravel-activitylog/v5/installation-and-setup)
- [ Questions and issues ](https://spatie.be/docs/laravel-activitylog/v5/questions-and-issues)
- [ Changelog ](https://spatie.be/docs/laravel-activitylog/v5/changelog)
- [ Upgrading ](https://spatie.be/docs/laravel-activitylog/v5/upgrading)
- [ About us ](https://spatie.be/docs/laravel-activitylog/v5/about-us)

Basic usage
-----------

- [ Logging activity ](https://spatie.be/docs/laravel-activitylog/v5/basic-usage/logging-activity)
- [ Cleaning up the log ](https://spatie.be/docs/laravel-activitylog/v5/basic-usage/cleaning-up-the-log)

Advanced usage
--------------

- [ Logging model events ](https://spatie.be/docs/laravel-activitylog/v5/advanced-usage/logging-model-events)
- [ Define causer for runtime ](https://spatie.be/docs/laravel-activitylog/v5/advanced-usage/define-causer-for-runtime)
- [ Using placeholders ](https://spatie.be/docs/laravel-activitylog/v5/advanced-usage/using-placeholders)
- [ Using multiple logs ](https://spatie.be/docs/laravel-activitylog/v5/advanced-usage/using-multiple-logs)
- [ Disabling logging ](https://spatie.be/docs/laravel-activitylog/v5/advanced-usage/disabling-logging)
- [ Customizing actions ](https://spatie.be/docs/laravel-activitylog/v5/advanced-usage/customizing-actions)
- [ Before logging hook ](https://spatie.be/docs/laravel-activitylog/v5/advanced-usage/before-logging-hook)
- [ Buffering activities ](https://spatie.be/docs/laravel-activitylog/v5/advanced-usage/buffering)
- [ Log Options ](https://spatie.be/docs/laravel-activitylog/v5/advanced-usage/log-options)
- [ Causer Resolver ](https://spatie.be/docs/laravel-activitylog/v5/advanced-usage/causer-resolver)

 Define causer for runtime
=========================

###  On this page

1. [ Scoped causer ](#content-scoped-causer)
2. [ Global causer ](#content-global-causer)

In many cases you may want to set the causer for a block of code, for example inside jobs where there's no logged-in user. The `Activity` facade provides `defaultCauser()` for this.

Scoped causer
-----------------------------------------------------------------------------------------------

Pass a callback as the second argument to scope the causer to that block. The previous causer is automatically restored afterwards:

```
use Spatie\Activitylog\Facades\Activity;

Activity::defaultCauser($admin, function () {
    $product->update(['name' => 'New name']);
    // this activity will have $admin as the causer
});

// the previous causer is restored here
```

This works cleanly in jobs, CLI commands, seeders, and multi-guard setups.

Global causer
-----------------------------------------------------------------------------------------------

Without a callback, the causer is set for the rest of the request:

```
use Spatie\Activitylog\Facades\Activity;

Activity::defaultCauser($admin);

$product->update(['name' => 'New name']);

\Spatie\Activitylog\Models\Activity::all()->last()->causer; // $admin
```

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match?
-------------

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