Laravel雄辯的ORM複製

Question

我有一個複製我的模型與所有關係的問題。

數據庫結構如下：

Table1: products 
id 
name 

Table2: product_options 
id 
product_id 
option 

Table3: categories 
id 
name 

Pivot table: product_categories 
product_id 
category_id 

關係是：

• 產品的hasMany product_options
• 產物belongsToMany類別（波谷product_categories）

我想克隆具有所有關係的產品。目前這裏是我的代碼：

$product = Product::with('options')->find($id); 
$new_product = $product->replicate(); 
$new_product->push(); 
foreach($product->options as $option){ 
    $new_option = $option->replicate(); 
    $new_option->product_id = $new_product->id; 
    $new_option->push(); 
} 

但這不起作用（關係不克隆 - 目前我只是試圖克隆product_options）。

Answer 1

此代碼，爲我工作：從這裏

$model = User::find($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()); 
    } 
} 

答：Clone an Eloquent object including all relationships?

這個答案（同樣的問題）也，也很好。

//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(); 
    } 
} 

從這裏：Clone an Eloquent object including all relationships?

代碼爲許多人在我的經驗，許多關係工作正常。

Answer 2

嘗試使用attach創建關係：

foreach($product->options as $option){ 
    $new_option = $option->replicate(); 
    $new_option->save(); 
    $new_option_id = $new_option->id; 
    $new_product->options()->attach($new_option_id); 
} 

Answer 3

$product = Product::with('options')->find($id); 
$new_product = $product->replicate(); 
$new_product->{attribute} = {value}; 
$new_product->push(); 

$new_product->options()->saveMany($product->options);