Unknown record property / related component "primary_keys" form embed/m:n relationship

I have this schema:

JosUsers:
  columns:
    id: { type: integer(4), primary: true, autoincrement: true }
    name: { type: string(255), notnull: true }
    username: { type: string(150), notnull: true }
    email: { type: string(100), notnull: true }
    password: { type: string(100), notnull: true }
    usertype: { type: string(25), notnull: true }
    block: { type: integer(1), notnull: true }
    sendemail: { type: integer(1), notnull: false }
    gid: { type: integer(1), default: '1', notnull: true }
    registerdate: { type: timestamp(25), notnull: true }
    lastvisitdate: { type: timestamp(25), notnull: true }
    activation: { type: string(100), notnull: true }
    params: { type: string(), notnull: true }
  relations:
    AccessControlObject: { class: JosCoreAclAro, local: id, foreign: value, foreignType: one }

JosCoreAclAro:
  columns:
    id: { type: integer(4),fixed: false, unsigned: false, primary: true, autoincrement: true}
    section_value: { type: string(240), notnull: true }
    value: {type: string(240), notnull: true }
    order_value: { type: integer(4), notnull: true }
    name: { type: string(255), notnull: true }
    hidden: { type: integer(4), notnull: true }
  relations: 
    Group: { class: JosCoreAclAroGroups, local: aro_id, foreign: group_id, refClass: JosCoreAclGroupsAroMap,foreignType: one }

JosCoreAclGroupsAroMap:
  columns:
    group_id: { type: integer(4), primary: true }
    section_value: { type: string(240) }
    aro_id: { type: integer(4), primary: true }
  relations: 
    JosCoreAclAro: { class: JosCoreAclAro, local: aro_id, onDelete: CASCADE }
    JosCoreAclAroGroup: { class: JosCoreAclAroGroups, local: group_id, onDelete: CASCADE }

JosCoreAclAroGroups:
  columns:
    id: {type: integer(4), primary: true, autoincrement: true }
    parent_id: { type: integer(4), notnull: true }
    name: { type: string(255), notnull: true }
    lft: { type: integer(4), notnull: true }
    rgt: { type: integer(4), notnull: true }
    value: { type: string(255), notnull: true }

When I embed JosCoreAclAroForm like this

class JosUsersForm extends BaseJosUsersForm{
    public function configure(){


        $josCoreAclAroForm = new JosCoreAclAroForm();
                $this->embedForm('josCoreAclAro', $josCoreAclAroForm);

    }



}

I get Unknown record property / rela开发者_如何学Pythonted component "primary_keys" on "JosCoreAclAroGroups"

I can't figure out why there this function is called, nor can I find it anywhere?

Greg0ire had the answer: "A class name should be singular, and since doctrine makes many guesses based on whether names end with s or not, this could be the source of your problem, the s at the end of JosCoreAclAroGroups might be misinterpreted somewhere."