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Example code of linushstge/number-pool

Informations about the package number-pool

Eloquent Trait for unique Model ascending numbers

Create a shared Number Pool for each of business number ranges to use native MySQL / MariaDB FOR UPDATE atomic locks if you run on a MySQL Master/Master Replication or on galera cluster or if you have multiple message queue workers which are consuming the same jobs.

If you're running on replication you're primary auto increments are probably not reliable for unique ascending numbers. With this Eloquent trait your able to generate ascending unique numbers while using InnoDB's native FOR UPDATE row lock.

Example Invoice Table on a Galera Cluster with three nodes:

id type number
1 invoice 1000
3 invoice 1001
6 invoice 1002

With Master-Master Replication or Galera cluster your primary auto increment is not reliable for any ascending numbers.

Installation

This package can be installed through composer:

After installation, you have to create a new migration with artisan:make migration for your number pools.

Example:

Number Pools stores a string identifier key and the last used number of any pool your application is using. With the key you are able to use the same number pools in multiple eloquent models.

Usage

Create a new for your first eloquent model and persist it to database.

Add the trait to one of your existing model and implement the abstract methods numberPoolKey and numberPoolAttribute to set up your pool and local model attribute where you wish to save your ascending unique incremented number.

On each Model creating event this trait will perform a native InnoDB lock inside a dedicated transaction to ensure uniqueness for the new generated number.

Custom increment step size

If you wish to specify the step size you can implement the public method
to dynamically adjust the step size for any new generated increments. You also can use rand to implement random steps between your numbers.

Please ensure to return a positive for your step size. Otherwise, the NumberPoolException will be thrown.

Usage of static Eloquent event hooks

As you may already know, laravel supports static booted events to hook inside a creating or created event. You can use them to build custom logic with your newly unique number pool integer.

For example:

FAQ

Is this package is compatible with Laravel Horizon?

Yes, you can use horizon, your own supervisor process monitor or native systemd services. By InnoDB's technology the native ROW READ LOCK is guaranteed.

Do I need InnoDB engine for all tables?

No, this package only requires InnoDB for your table.

Do I need redis?

No, redis is not required, but preferred for your message queue, especially if your consuming the same jobs on multiple workers.

License

The MIT License (MIT). Refer to the License for more information.

All versions of number-pool with dependencies

PHP Build Version
Package Version
Requires php Version ^8.0
illuminate/support Version ^9.0
illuminate/database Version ^9.0
illuminate/config Version ^9.0
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