![]() ![]() When using Eloquent, each database table has a corresponding "Model" that is used to interact with that table. In addition to retrieving records from the database table, Eloquent models allow you to insert, update, and delete records from the table as well.īefore getting started, be sure to configure a database connection in your application's config/database.php configuration file. For more information on configuring your database, check out the database configuration documentation. If you're new to Laravel, feel free to jump into the Laravel Bootcamp. The Laravel Bootcamp will walk you through building your first Laravel application using Eloquent. It's a great way to get a tour of everything the Laravel and Eloquent have to offer. To get started, let's create an Eloquent model. You may use the make:model Artisan command to generate a new model: Models typically live in the app\Models directory and extend the Illuminate\Database\Eloquent\Model class. The update method expects an array of column and value pairs representing the columns that should be updated. The update method returns the number of affected rows. When issuing a mass update via Eloquent, the saving, saved, updating, and updated model events will not be fired for the updated models. This is because the models are never actually retrieved when issuing a mass update.Įloquent provides the isDirty, isClean, and wasChanged methods to examine the internal state of your model and determine how its attributes have changed from when the model was originally retrieved. The isDirty method determines if any of the model's attributes have been changed since the model was retrieved. ![]() You may pass a specific attribute name or an array of attributes to the isDirty method to determine if any of the attributes are "dirty". This method also accepts an optional attribute argument: The isClean method will determine if an attribute has remained unchanged since the model was retrieved. Want to broadcast your Eloquent events directly to your client-side application? Check out Laravel's model event broadcasting.Įloquent models dispatch several events, allowing you to hook into the following moments in a model's lifecycle: retrieved, creating, created, updating, updated, saving, saved, deleting, deleted, trashed, forceDeleting, forceDeleted, restoring, restored, and replicating. The retrieved event will dispatch when an existing model is retrieved from the database. When a new model is saved for the first time, the creating and created events will dispatch. The updating / updated events will dispatch when an existing model is modified and the save method is called. The saving / saved events will dispatch when a model is created or updated - even if the model's attributes have not been changed. Event names ending with -ing are dispatched before any changes to the model are persisted, while events ending with -ed are dispatched after the changes to the model are persisted. To start listening to model events, define a $dispatchesEvents property on your Eloquent model. This property maps various points of the Eloquent model's lifecycle to your own event classes.In this tutorial, we are going to dig deep into the ORM (object-relational mapper) Laravel uses Eloquent. We will throw some light on some less used features of Laravel Eloquent and how it can make your development process even easier. Laravel makes building PHP applications a breeze. It is designed to provide methods for handling the basics your application will need to run – database interaction, routing, sessions, caching and more. ![]() To follow along in this tutorial you must: It has service providers that allow you to load custom configurations and extend Laravel’s capabilities to suit your needs. Have basic to intermediate knowledge of the Laravel framework. ![]()
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