Laravel know variable inside function, but does not know in return

Question

I am using laravel excel to export my data. Inside map function, the $credit and $debit variables but when returning them, it throws a error.

The error is :

Trying to get property 'name' of non-object

here is my map function:

public function map($partner): array
{
    $credit = Bank::whereId($partner->credit)->first(); // also used: Bank::find($partner->credit);
    $debit = Bank::whereId($partner->debit)->first();
    dd($credit->name) // returns 'test'

    return [
        $partner->full_name, // this returns correctly.
        $credit->name, // returns "Trying to get property 'name' of non-object"
                       // if use $credit, it returns whole credit object.
        $debit->name,  // returns "Trying to get property 'name' of non-object"
                       // if use $credit, it returns whole debit object.
    ];
}

John Lobo · Accepted Answer · 2021-07-10 09:20:43Z

1

Look like few $partner has no credit or debit so check null condition

public function map($partner): array
{
    $credit = Bank::whereId($partner->credit)->first(); Bank::find($partner->credit);
    $debit = Bank::whereId($partner->debit)->first();
   

    return [
        $partner->full_name, 
        $credit->name??null,
        $debit->name??null,          
    ];
}

Also you can do

$data=[$partner->full_name];
isset($credit->name)? array_push($data,$credit->name)?null;
isset($debit->name)? array_push($data,$debit->name)?null;
  
return $data;

edited Jul 10, 2021 at 9:20

answered Jul 10, 2021 at 9:11

John Lobo

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3 Comments

Mahdi Jafari Over a year ago

Thanks John Lobo, The issue is that: $credit->name isn't null, It does exists. it does exists inside the function and I dumped it. but it does not return it

John Lobo Over a year ago

@MahdiJafari have you checked for all records ? since dd($credit->name) will check for only one record

Mahdi Jafari Over a year ago

Not yet. Let me check it

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