Now, let’s get to the view file- //view.blade. Then we pass the retrieved data through a compact function. In this UserController, we simply call the User model, and with the find(1) method we can get all the data of the user whose id is 1. Return view('User.view', compact('data')) By using that we can get the address of a specific user. In the User.php model, the getUserAddress() defines the User model has one relation with the Address model. We can create an address() model and under the User, model call the hasOne() method to relate the Address model. Here the user_id field is the id from the user table which will be used as a foreign key. In this user table, we have some fields like id, name, email, and password and in the address table, we’ve id, user address, and the user_id field. Let’s see a simple diagram to understand it better. For example, a User model wants to be connected with an Address model. One-to-one relationship is one of the basic relationships. To run the development server, the PHP artisan command is- php artisan serve We’re going to run the development server after every relationship example. Here, the view() function returns a blade file that is stored under the User folder. Inside the controller, we’ll need a function called view to display the data. We’re going to use the name UserController. You can use the PHP artisan command to create a controller php artisan make:controller UserController You can practice with different controllers if you want. In this tutorial, we’re going to use the same controller for all the examples. In your laravel project, they are stored in the app/Http/Controllers directory. The controller is a class where we handle requests, and implement logic. Route::get('/index',)Īfter creating the route, now we need a controller. env file on your laravel project and set up the database name. Right? Now the project is installed, we need to set up the database. To work with Eloquent ORM, obviously, we’re going to need a database. With Composer installed on your computer, you can download a laravel project with the following command- composer create-project laravel/laravel laravel-eloquent-relations Setup Database The following steps are īefore we start, we need to download and set up a laravel application. In this tutorial, you’re going to learn about eloquent relationships step by step with examples. In this tutorial, we will use Sublime Text 3 as a text editor, xampp server, and Google Chrome as a web browser. To complete this tutorial all you need to have is a configured computer, a text editor, a web browser, a web server installed on your computers like Xampp or WampServer, composer(package manager), and a basic understanding of PHP and laravel. Database records or as we better know them tables are often related to each other.Įloquent maintains these relationships very easily through a series of common relationships. It handles database operations by representing data as objects. Now we can see one to one relationships using hasone() and belongsto().ORM means object-relational mapper. ONE TO ONE RELATIOSHIPS Here we are creating 2 tables: We can reduce the first query into a simple one. The above example is a simple example of eloquent relationships. The above query is to long, so when we connect more tables its too tough we will be having a big query and complicated. To illustrate this relationship, we can create a address () method within the User model and call the hasOne () method to relate the Address model. For example, a User model would be associated with a Address model. Why Eloquent Relationships Here we have 2 tables, students and marks, so for join each table, Polymorphic Relations One to One Relationship with Example One to one relationship is one of basic relationships. Here we will see three types of relationships, Here we will One to one, one to many and many to many relationships. Eloquent make easy to connect each tables easily. Each table will be connected to some other. We all know, while we creating an application we all have foreign keys. Laravel introduces eloquent relationships from laravel 5.0 onwards.
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