Parse.com-如何搜索/检索当前用户的安全对象

Question

As per parse API documentation, "Security For Other Objects".

Create a private note that can only be accessed by the current user:

PFObject *privateNote = [PFObject objectWithClassName:@"Note"];
privateNote[@"content"] = @"This note is private!";
privateNote.ACL = [PFACL ACLWithUser:[PFUser currentUser]];
[privateNote saveInBackground];

Link: https://www.parse.com/docs/ios_guide#users-acls/iOS

This note will then only be accessible to the current user, although it will be accessible to any device where that user is signed in.

Question: How to retrieve all my private notes ? Unable to find out in documentation.

Answer 1

You have one add more column in your note class named "user" it creates user pointer in your table.

PFObject *privateNote = [PFObject objectWithClassName:@"Note"];
privateNote[@"content"] = @"This note is private!";
privateNote[@"user"] = [PFUser currentUser];
privateNote.ACL = [PFACL ACLWithUser:[PFUser currentUser]];
[privateNote saveInBackground];

And when you want to retrieve all notes which are related to that user then you can use following code

PFQuery *query = [PFQuery queryWithClassName:@"Note"];
[query whereKey:@"user" equalTo:[PFUser currentUser]];
NSArray *usersNote = [query findObjects];
NSLog(@"%@",usersNote);

in above Array u can get records.

Hope this will help to you.

Answer 2

Actually I've got another simple solution:

NO need to create extra column. You can simply use this:

PFObject *privateNote = [PFObject objectWithClassName:@"Note"];
privateNote[@"content"] = @"This note is private!";
privateNote.ACL = [PFACL ACLWithUser:[PFUser currentUser]];
[privateNote saveInBackground];


PFQuery *query = [PFQuery queryWithClassName:@"Note"];
NSArray *usersNote = [query findObjects];
NSLog(@"%@",usersNote);

It will automatically retrieve private note.