One to Many Relationship in Laravel 5.7 Eloquent

Today, We want to share with you One to Many Relationship in Laravel 5.7 Eloquent.In this post we will show you One-To-Many Relationships using laravel eloquent, hear for One to Many ― Laravel Eloquent Relationships we will give you demo and example for implement.In this post, we will learn about Laravel 5.7 get data from one to many relation with an example.

One to Many Relationship in Laravel 5.7 Eloquent

There are the Following The simple About One to Many Relationship in Laravel 5.7 Eloquent Full Information With Example and source code.

As I will cover this Post with live Working example to develop Laravel One to Many Eloquent Relationship Tutorial, so the Creating a hasMany Relation in Laravel 5.7 for this example is following below.

Laravel 5.7 One to Many Relationship

In this Example Learn To one to many relationship laravel model, hasmany laravel 5.7 tutorial, create hasmany relationship laravel, laravel one to many insert.

Example details:

In this Example we have 2 models (Stranger and Mobile), and 2 tables (strangers and mobiles).

Business Rules:

• The Stranger can steal many Mobiles.
• The Mobile can be stolen by one Stranger.

Relationship Details:

The Mobiles table should store the Stranger ID.

Laravel 5.7 Eloquent Models:

class Stranger
{
    public function mobiles()
    {
       return $this->hasMany(Mobile::class);
    }
}
class Mobile
{
    public function stranger()
    {
        return $this->belongsTo(Stranger::class);
    }
}

Laravel 5.7 Database Migrations:

Schema::create('strangers', function (Blueprint $table) {
    $table->increments('id');
    $table->string('name');
});
Schema::create('mobiles', function (Blueprint $table) {
    $table->increments('id');
    $table->string('name');
    $table->integer('stranger_id')->unsigned()->index()->nullable();
    $table->foreign('stranger_id')->references('id')->on('strangers');
});

Store Records:

// Create relation between Stranger and Mobile.
$stranger->mobiles()->saveMany([
   $mobile1, 
   $mobile2,
]);
// Or use the save() function for single model.
$stranger->mobiles()->save($mobile);
// Create relation between Mobile and Stranger.
$mobile->stranger()->associate($stranger)->save();

Retrieve Records using Laravel One to Many Relationship:

// Get Stranger Mobile
$stranger->mobiles;
// Get Mobile Stranger
$mobile->stranger;

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