Handling Race Conditions in Laravel Jobs and Queues

• Query 1: SELECT * FROM posts
• Query 2: SELECT * FROM users WHERE id IN (?, ?, ?) (one query for all authors)

For models with multiple relationships, use nested eager loading:

Centralizing the loading of this data reduces redundant queries and ensures consistent access across the application.

The first step is identifying the data that needs to be centralized. For this example:

   php artisan make:provider CustomDataServiceProvider

Add the newly created provider to the providers array in config/app.php:

   public function boot()
   {
       view()->share('sharedData', app('sharedData'));
   }

Now, the shared data is available in all views:

A transaction is a sequence of one or more SQL operations that are executed as a single unit of work. Transactions have four key properties, often referred to as ACID:

• Atomicity: Ensures that all operations within a transaction are completed successfully; if any operation fails, the entire transaction is rolled back.
• Consistency: Guarantees that a transaction will bring the database from one valid state to another, maintaining data integrity.
• Isolation: Ensures that the operations within a transaction are invisible to other transactions until the transaction is committed.
• Durability: Once a transaction is committed, its changes are permanent, even in the event of a system failure.