CODEWITHSUNDEEP
phpmysqllaravel
omrakhur
omrakhur

Reputation: 1412

Laravel relationship error: Undefined property: Illuminate\Database\Eloquent\Collection::$id on line 1

I have two models Company and Employee, with corresponding tables in MySQL, companies, and employees.

I have these Many-to-One relationships defined:

In the Company model:

 public function employees(){
        return $this->hasMany('App\Employee','company');
    }

In the Employee model: 

public function company(){
        return $this->belongsTo('App\Company','company');
    }

company above in the methods is an unsigned integer foreign key present in the employees table.

In tinker I have tried $company->employees;, which returns a list of all the employees in the selected company. However, when I do $company->employees->id to get the IDs of all the employees only and not the other rows, it gives me the error: 

PHP error:  Undefined property: Illuminate\Database\Eloquent\Collection::$id on line 1

Upvotes: 3

Views: 6489

Answers (1)

user1897253
user1897253

Reputation:

Well $company->employees returns a collection, ->id is not a property in the collection, thats why you get the error.

If you want to retrieve an array containing all the id's of your employees you might do this:

$company->employees()->lists('id');

If you're reading this and using laravel ^5.3.* then the answer would be:

$company->employees()->pluck('id');

This would return a collection with all id's, if you want it to be an array you can chain the ->toArray() behind it.

Upvotes: 3

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