Laravel-5. , primary key , id . , , . , , , , .
primary key
id
, $table->primary('field') shema, : http://laravel.com/docs/5.0/schema#adding-indexes
$table->primary('field')
protected $primaryKey = 'Your_Primary_key';
.
$table->string('your_primary_key', 32)->primary();
'your_primary_key' -
32 -