How can I adjust the ACL of existing posts on Parse.com -

i have 4.5k posts in parse.com application. of them have read access want adjust these records have read/write or add role read/write access.

the roles part not clear me. how can create subscriber role example , attach users this.

do have in cloud code parse.com?

for _user class, default acl read public , written user particularly. other classes created, default setting public read/write. have understand before heading role.

for case, need write simple script in order modify acl individually.

role similar acl. because every single objects has acl , it's difficult modify them 1 one. role created grouping users have common access privileges parse.com data. following story telling parse.com great:

for example, in application curated content, may have number of users considered "moderators" , can modify , delete content created other users. may have set of users "administrators" , allowed of same privileges moderators, can modify global settings application. adding users these roles, can ensure new users can made moderators or administrators, without having manually grant permission every resource each user.