Clone an Eloquent object including all relationships? - laravel

Question

Is there any way to easily clone an Eloquent object, including all of its relationships?
For example, if I had these tables:
users ( id, name, email )
roles ( id, name )
user_roles ( user_id, role_id )
In addition to creating a new row in the users table, with all columns being the same except id, it should also create a new row in the user_roles table, assigning the same role to the new user.
Something like this:
$user = User::find(1);
$new_user = $user->clone();
Where the User model has
class User extends Eloquent {
public function roles() {
return $this->hasMany('Role', 'user_roles');
}
}

Answer 1

tested in laravel 4.2 for belongsToMany relationships
if you're in the model:
//copy attributes
$new = $this->replicate();
//save model before you recreate relations (so it has an id)
$new->push();
//reset relations on EXISTING MODEL (this way you can control which ones will be loaded
$this->relations = [];
//load relations on EXISTING MODEL
$this->load('relation1','relation2');
//re-sync everything
foreach ($this->relations as $relationName => $values){
$new->{$relationName}()->sync($values);
}

Answer 2

You may also try the replicate function provided by eloquent:
http://laravel.com/api/4.2/Illuminate/Database/Eloquent/Model.html#method_replicate
$user = User::find(1);
$new_user = $user->replicate();
$new_user->push();

Answer 3

For Laravel 5. Tested with hasMany relation.
$model = User::find($id);
$model->load('invoices');
$newModel = $model->replicate();
$newModel->push();
foreach($model->getRelations() as $relation => $items){
foreach($items as $item){
unset($item->id);
$newModel->{$relation}()->create($item->toArray());
}
}

Answer 4

You may try this (Object Cloning):
$user = User::find(1);
$new_user = clone $user;
Since clone doesn't deep copy so child objects won't be copied if there is any child object available and in this case you need to copy the child object using clone manually. For example:
$user = User::with('role')->find(1);
$new_user = clone $user; // copy the $user
$new_user->role = clone $user->role; // copy the $user->role
In your case roles will be a collection of Role objects so each Role object in the collection needs to be copied manually using clone.
Also, you need to be aware of that, if you don't load the roles using with then those will be not loaded or won't be available in the $user and when you'll call $user->roles then those objects will be loaded at run time after that call of $user->roles and until this, those roles are not loaded.
Update:
This answer was for Larave-4 and now Laravel offers replicate() method, for example:
$user = User::find(1);
$newUser = $user->replicate();
// ...

Answer 5

Here is an updated version of the solution from #sabrina-gelbart that will clone all hasMany relationships instead of just the belongsToMany as she posted:
//copy attributes from original model
$newRecord = $original->replicate();
// Reset any fields needed to connect to another parent, etc
$newRecord->some_id = $otherParent->id;
//save model before you recreate relations (so it has an id)
$newRecord->push();
//reset relations on EXISTING MODEL (this way you can control which ones will be loaded
$original->relations = [];
//load relations on EXISTING MODEL
$original->load('somerelationship', 'anotherrelationship');
//re-sync the child relationships
$relations = $original->getRelations();
foreach ($relations as $relation) {
foreach ($relation as $relationRecord) {
$newRelationship = $relationRecord->replicate();
$newRelationship->some_parent_id = $newRecord->id;
$newRelationship->push();
}
}

Answer 6

This is in laravel 5.8, havent tried in older version
//# this will clone $eloquent and asign all $eloquent->$withoutProperties = null
$cloned = $eloquent->cloneWithout(Array $withoutProperties)
edit, just today 7 April 2019 laravel 5.8.10 launched
can use replicate now
$post = Post::find(1);
$newPost = $post->replicate();
$newPost->save();

Answer 7

When you fetch an object by any relation you want, and replicate after that, all relations you retrieved are also replicated. for example:
$oldUser = User::with('roles')->find(1);
$newUser = $oldUser->replicate();

Answer 8

If you have a collection named $user, using the code bellow, it creates a new Collection identical from the old one, including all the relations:
$new_user = new \Illuminate\Database\Eloquent\Collection ( $user->all() );
this code is for laravel 5.

Answer 9

Here is a trait that will recursively duplicate all the loaded relationships on an object. You could easily expand this for other relationship types like Sabrina's example for belongsToMany.
trait DuplicateRelations
{
public static function duplicateRelations($from, $to)
{
foreach ($from->relations as $relationName => $object){
if($object !== null) {
if ($object instanceof Collection) {
foreach ($object as $relation) {
self::replication($relationName, $relation, $to);
}
} else {
self::replication($relationName, $object, $to);
}
}
}
}
private static function replication($name, $relation, $to)
{
$newRelation = $relation->replicate();
$to->{$name}()->create($newRelation->toArray());
if($relation->relations !== null) {
self::duplicateRelations($relation, $to->{$name});
}
}
}
Usage:
//copy attributes
$new = $this->replicate();
//save model before you recreate relations (so it has an id)
$new->push();
//reset relations on EXISTING MODEL (this way you can control which ones will be loaded
$this->relations = [];
//load relations on EXISTING MODEL
$this->load('relation1','relation2.nested_relation');
// duplication all LOADED relations including nested.
self::duplicateRelations($this, $new);

Answer 10

I added this function in BaseModel to duplicate data with relations. It works in Laravel 9.
public function replicateWithRelationsAttributes(): static
{
$model = clone $this->replicate();
foreach ($this->getRelations() as $key => $relation) {
$model->setAttribute($key, clone $relation);
}
return $model;
}

Answer 11

Here's another way to do it if the other solutions don't appease you:
<?php
/** #var \App\Models\Booking $booking */
$booking = Booking::query()->with('segments.stops','billingItems','invoiceItems.applyTo')->findOrFail($id);
$booking->id = null;
$booking->exists = false;
$booking->number = null;
$booking->confirmed_date_utc = null;
$booking->save();
$now = CarbonDate::now($booking->company->timezone);
foreach($booking->segments as $seg) {
$seg->id = null;
$seg->exists = false;
$seg->booking_id = $booking->id;
$seg->save();
foreach($seg->stops as $stop) {
$stop->id = null;
$stop->exists = false;
$stop->segment_id = $seg->id;
$stop->save();
}
}
foreach($booking->billingItems as $bi) {
$bi->id = null;
$bi->exists = false;
$bi->booking_id = $booking->id;
$bi->save();
}
$iiMap = [];
foreach($booking->invoiceItems as $ii) {
$oldId = $ii->id;
$ii->id = null;
$ii->exists = false;
$ii->booking_id = $booking->id;
$ii->save();
$iiMap[$oldId] = $ii->id;
}
foreach($booking->invoiceItems as $ii) {
$newIds = [];
foreach($ii->applyTo as $at) {
$newIds[] = $iiMap[$at->id];
}
$ii->applyTo()->sync($newIds);
}
The trick is to wipe the id and exists properties so that Laravel will create a new record.
Cloning self-relationships is a little tricky but I've included an example. You just have to create a mapping of old ids to new ids and then re-sync.

Answer 12

In Laravel v5.8.10+ (Currently Laravel v9.x) If you need to work with Laravel replicate() model with relationships this could be a solution. Let's see two simple example.
app/Models/Product.php
<?php
namespace App\Models;
use Illuminate\Database\Eloquent\Factories\HasFactory;
use Illuminate\Database\Eloquent\Model;
class Product extends Model
{
use HasFactory;
/**
* The attributes that are mass assignable.
*
* #var array<string>
*/
protected $fillable = [
'name', 'price', 'slug', 'category_id'
];
}
app/Models/Category.php
<?php
namespace App\Models;
use Illuminate\Database\Eloquent\Factories\HasFactory;
use Illuminate\Database\Eloquent\Model;
class Category extends Model
{
use HasFactory;
/**
* Get all the products for the Category.
*
* #return \Illuminate\Database\Eloquent\Relations\HasMany
*/
public function products()
{
return $this->hasMany(Product::class);
}
/**
* Clone the model into a new, non-existing instance with all the products.
*
* #return \App\Models\Category
*/
public function replicateRow()
{
$clon = $this->replicate();
$clon->push();
$this->products->each(
fn ($product) => $clon->products()->create($product->toArray())
);
return $clon;
}
}
Controller Code
<?php
namespace App\Http\Controllers;
use App\Models\Category;
class ReplicateController extends Controller
{
/**
* Handle the incoming request.
*
* #param \App\Models\Category $category
* #return void
*/
public function index(Category $category)
{
$newCategory = $category->replicateRow();
dd($newCategory);
}
}