Accessing attributes from multiple different relationships in a CRUD Eloquent Laravel 5.7

Question

Guys I have a structure like this model (Modelo apenas ilustrativo) and want to know how I can access the data of the whole relationship to make a insert/update in these tables with the data received from a form, being that I can give a select with LEFT JOIN in all these tables using a query with DB::raw, but I want to know how to do this only with eloquent methods. From file to file:

Where as you can see one Processo has only one solicitacao and vice versa, one solicitacao may have N boxes and a box can be in N solicitacoes, whereas one box may have N arquivos.

My Model Process would look like this:

public function processo_solicitacao (){
 return $this->belongTo(Solicitacao::class, 'id_solicitacao', 'solicitacao_id');
}  

My Model request like this:

public function processo (){
 return $this->hasOne(Processo::class);
}  

My model box like this:

public function solicitacoes (){
 return $this->belongsToMany(Processo::class);
}
public function arquivos(){
 return $this->hasMany(Arquivo::class);
}

My Model file like this:

public function solicitacoes (){
 return $this->belongsTo(Box::class, 'box_id', 'id_box');
}

From now on I appreciate any help!

Answer 1

As long as your relationships are correct, you can call the statistical method create of each model, in an order that you have all the necessary data.

Example:

$solicitacao = Solicitacao::create([ 'info1' => 'valor1' ... ]);
$box = Box::create([ 'info1' => 'valor1' ...]);
$box->associate($solicitacao); // ou
$box->associate($solicitacao->id);
$box->save();

And so on and so forth...