ACL requirement

[Yasin Shaik11]

Hi All,

Need help for the below requirement. 

we have custom table which is global and inherited from the task. here our requirement is we need to give access to field 1 and field 2 for an approver group. that means the approver group can be able to update the fields and can see the fields. and other groups member only can see the fields and should be read only access not editable. 
for this how many ACLs are required and what are those? 

[Ankur Bawiskar]

@Yasin Shaik11 

script is wrong

update as this

answer = gs.getUser().isMemberOf('Approver Group');

[Yasin Shaik11]

Thanks for the reply. 
i have updated the script even though the Apporver Group member cannot be able to edit the field it read only. it should be editable for Apporver Group members not others group members.