pii-network - acl permission- authorize/revoke access network but not to himself

Question

I'm using online Playground of Hyperledger Composer (https://composer-playground.mybluemix.net/).

I'm tring to modify acl file from "pii-network" example.

I would like to have authorized access only if participant want to authorize another member and not himself... How can I do it? I did the following change to ACL file but it does not work as I expected (it authorize/revoke anyone and not anyone without himself):

rule AuthorizeAccessTransaction {
   description: "Allow all participants to submit AuthorizeAccess transactions"
   participant(p): "org.acme.model.Doctor"
   operation: CREATE
   resource(r): "org.acme.model.AuthorizeAccess"
   condition: (r.getIdentifier() != p.getIdentifier())
   action: ALLOW 
}
rule RevokeAccessTransaction {
   description: "Allow all participants to submit RevokeAccess transactions"
   participant(p): "org.acme.model.Doctor"
   operation: CREATE
   resource(r): "org.acme.model.RevokeAccess"
   condition: (r.getIdentifier() != p.getIdentifier())
   action: ALLOW
}
rule OwnRecordFullAccess {
   description: "Allow all participants full access to their own record"
   participant(p): "org.acme.model.Doctor"
   operation: ALL
   resource(r): "org.acme.model.Doctor"
   condition: (r.getIdentifier() === p.getIdentifier())
   action: ALLOW
}
rule ForeignRecordConditionalAccess {
   description: "Allow participants access to other people's records if granted"
   participant(p): "org.acme.model.Doctor"
   operation: ALL
   resource(r): "org.acme.model.Doctor"
   condition: (r.authorized && r.authorized.indexOf(p.getIdentifier()) > -1)
   action: ALLOW
}

rule SystemACL {
   description: "System ACL to permit all access"
   participant: "org.hyperledger.composer.system.Participant"
   operation: ALL
   resource: "org.hyperledger.composer.system.**"
   action: ALLOW

}

I followed instruction from https://www.youtube.com/watch?v=VTX-9VyO6OU&feature=youtu.be and I changed the .acl file like I showed

Does anyone know what is the problem? What did I wrong?

I show also cto file here:

namespace org.acme.model

concept Specialization {
o String hospital
o String hospital_ward //reparto ospedaliero
o String city 
o String county
o String zip
o String field //campo medico di specializzazione

}

participant Doctor identified by username {
o String username
o String firstName
o String lastName
o Specialization specialization 
o DateTime dob optional
o String[] authorized optional

}

abstract transaction DoctorTransaction {
o String username    

}

transaction AuthorizeAccess extends DoctorTransaction {

}

transaction RevokeAccess extends DoctorTransaction {

}

event DoctorEvent {
o DoctorTransaction doctorTransaction

}

Answer 1

Use relationship as datatype for your authorized users.

participant Doctor identified by username {
o String username
o String firstName
o String lastName
o Specialization specialization 
o DateTime dob optional
--> Doctor[] authorized optional

Then use this function to check condition in permissions.acl

rule ForeignRecordConditionalAccess {
   description: "Allow participants access to other people's records if granted"
   participant(p): "org.acme.model.Doctor"
   operation: ALL
   resource(r): "org.acme.model.Doctor"
   condition: (
    r.authorized.some(function (doc){
      return doc.$identifier === p.$identifier;
    })
   )
   action: ALLOW
}