Laravel Update Related Model with push? - php

Question

I am stuck on updating a eagerloaded model that has a "hasMany" relation.
I have one model like so:
class UserGroup extends Model
{
public function enhancements()
{
return $this->hasMany('App\UserGroupEnhancement');
}
}
My controller is passing $userGroup to the view like so:
$userGroup = $this->userGroup->with('enhancements')->whereId($id)->first();
and then in my view I have
#foreach($userGroup->enhancements as $enhancement)
<label>{{$enhancement->type}}</label>
<input class="form-control" name="enhancements[{{$enhancement->id}}][price]" value="{{$enhancement->price}}">
#endforeach
When updating, how do I update all of records in the enhancement relationship? It's passed back into multiple arrays. I am currently doing something like this.
public function update($id)
{
$userGroup = $this->userGroup->findOrFail($id);
$enhancement = \Input::get('enhancements');
if (is_array($enhancement)) {
foreach ($enhancement as $enhancements_id => $enhancements_price) {
$userGroup->enhancements()->whereId($enhancements_id)->update($enhancements_price);
}
}
}
Is there a way I can do this without needing the foreach loop? I see the push() method, but seems to only work on a single array.

Answer 1

There isn't a better way to do this. There is an Eloquent method called saveMany but it is used to create new records and not update. ExampleDoc:
$comments = [
new Comment(['message' => 'A new comment.']),
new Comment(['message' => 'Another comment.']),
new Comment(['message' => 'The latest comment.'])
];
$post = Post::find(1);
$post->comments()->saveMany($comments);
I would stick with your solution, you can even create a trait or a base Eloquent class and put that logic in a method so it can be used by all other models, if you ever need to.
Something like:
trait UpdateMany {
public function updateMany($updates, $relationshipName)
{
if (!empty($updates)) {
foreach ($updates as $update_id => $update) {
$this->{$relationshipName}()->whereId($update_id)->update($update);
}
}
}
}
Then attach to your model(s):
class UserGroup extends Model
{
use UpdateMany;
public function enhancements()
{
return $this->hasMany('App\UserGroupEnhancement');
}
}
And simply use as:
$userGroup = $this->userGroup->findOrFail($id);
$userGroup->updateMany(\Input::get('enhancements'), 'enhancements');