How to save data on different database tables in Laravel Backpack - laravel

Question

how to save the data from the Features fields on a different table. Example in the link below, it is saving the Features table fields in a JSON field in the database. However, I want to save this data from the features into another table.
https://demo.backpackforelavel.com/admin/product/211/Edit
I'm coming back here to post my answer. I managed to settle, I'm putting here to help other developers.
This first part of the question I have already solved. But now I can not bring the data from the Features fields in the form.
Below is the source code that I was able to save and edit the form data. However, I can not carry the data from the Feature fields. Someone knows how I can carry the field data in Feature
class ProductCrudController extends CrudController
{
use ListOperation;
use CreateOperation {
store as traitStore;
}
use UpdateOperation {
update as traitUpdate;
}
use DeleteOperation;
public function store()
{
// insert item in the db
$item = $this->crud->create($this->crud->getRequest()->except(['save_action', '_token', '_method']));
$features = json_decode($this->crud->getRequest()->input('features'));
foreach ($features as $itens) {
$obj = new Feature();
$obj->product_id = $item->getKey();
$obj->name = $itens->name;
$obj->save();
}
// show a success message
\Alert::success(trans('backpack::crud.insert_success'))->flash();
return redirect('admin/product');
}
public function update()
{
$featureForm = json_decode($this->crud->getRequest()->input('features'));
// insert item in the db
$item = $this->crud->update($this->crud->getRequest()->id, $this->crud->getRequest()->except(['save_action', '_token', '_method', 'features']));
$objF = Feature::where('product_id', $item->getKey())->get();
foreach ($objF as $itens) {
Feature::where('id', $itens->id)->delete();
}
foreach ($featureForm as $itens) {
$obj = new Feature;
$obj->product_id = $item->getKey();
$obj->name = $itens->name;
$obj->save();
}
// show a success message
\Alert::success(trans('backpack::crud.insert_success'))->flash();
return redirect('admin/product');
}
}
I'm coming back here to post my answer. I managed to settle, I'm putting here to help other developers.
I was able to bring the data in the form edition, in the Features fields. I used the Mutators in the Model - https://laravel.com/docs/8.x/eloquent-mutators
Below is the example I did.
It would be interesting to have an example of this in the official documentation or demo project. I believe it would help a lot also to other developers.
//model Product
public function getFeaturesAttribute($value)
{
$objects = Features::where('product_id', $this->id)->get();
$array = [];
foreach ($objects as $itens) {
$obj = new stdClass;
$obj->name = $itens->name;
$array[] = $obj;
}
return \json_encode($array);
}

Answer 1

There are a few ways to go about it. Personally I prefer to create accessors and mutators in the model - https://laravel.com/docs/8.x/eloquent-mutators . Not only does it keep the CrudController clean (so updateable) but it also allows you to save/load stuff from other forms (ex: user-facing forms).
//model Product
public function getFeaturesAttribute($value)
{
$objects = Features::where('product_id', $this->id)->get();
$array = [];
foreach ($objects as $itens) {
$obj = new stdClass;
$obj->name = $itens->name;
$array[] = $obj;
}
return json_encode($array);
}