How to join two tables with a pivot table using laravel?
How to join two tables with a pivot table using laravel?
1 answer
by
lew ,
a year ago
@dedrick
To join two tables with a pivot table in Laravel, you can use the belongsToMany relationship in your Eloquent models. Here's how you can achieve this:
- Define the relationship in your Eloquent models:
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// User model
class User extends Model
{
public function roles()
{
return $this->belongsToMany(Role::class, 'user_roles', 'user_id', 'role_id');
}
}
// Role model
class Role extends Model
{
public function users()
{
return $this->belongsToMany(User::class, 'user_roles', 'role_id', 'user_id');
}
}
|
- Create a migration for the pivot table user_roles:
1
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php artisan make:migration create_user_roles_table |
In the migration file, define the schema for the pivot table:
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Schema::create('user_roles', function (Blueprint $table) {
$table->unsignedBigInteger('user_id');
$table->unsignedBigInteger('role_id');
$table->foreign('user_id')->references('id')->on('users')->onDelete('cascade');
$table->foreign('role_id')->references('id')->on('roles')->onDelete('cascade');
$table->primary(['user_id', 'role_id']);
});
|
- Use the relationship in your code to join the tables:
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$user = User::find(1);
foreach ($user->roles as $role) {
echo $role->name;
}
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This will fetch the roles associated with the user using the pivot table user_roles and display their names.