symfony - How do I generate ID when I have composite keys in Doctrine? -

i have entity composite keys. see below:

class bankaccount {      /**      * @orm\id      * @orm\column(type="integer")      *       */     protected $bank;      /**      * @orm\id      * @orm\manytoone(targetentity="companybundle\entity\company")      */     protected $company;      ...  } 

because doctrine has issues composite keys won't generates sequences (i'm working in postgresql), how deal in order generate $bank pk?

if sounds don't want composite key, primary key on $bank , foreign key on $company. if that's case,

class bankaccount {      /**      * @orm\id      * @orm\column(type="integer")      * @orm\generatedvalue(strategy="auto")      */     protected $bank;      /**      * @orm\manytoone(targetentity="companybundle\entity\company")      */     protected $company;      ...  } 

should it.