How to find out the parent groups of a person? - ios

Question

On MAC platform, the ABPerson class has a parentGroups attribute, which tells us which groups the person belongs to. But On IOS platform, there is no such method or property..
How to find out the parent groups of a person? Do I needs to search through all groups one by one?
Thanks.

Answer 1

another thread mentioned ABPersonCopyParentGroups -- but this is wrong -n.a. on ios.
there is no api call so doing this directly is needed
ABRecordRef personToFind = ....
ABRecordID id = ABRecordGetRecordID(personToFind);
NSArray *groups = (__bridge_transfer NSArray*)ABAddressBookCopyArrayOfAllGroups(bookRef);
for(ABGroupRef group in groups) {
NSArray *members = (__bridge_transfer NSArray*)ABGroupCopyAllMembers(group);
for(ABRecordRef member in members) {
if(id == ABRecordGetRecordID(member){
NSLog(#"found in group %#!", ABGroupCopyProperty(group, kABGroupName);
break;
}
}
}
*typed inline, no guarantees -- there are likely typos!

Answer 2

I had difficulties to use Daij-Djan answer, so I rewrote it:
CFArrayRef groupsRef = ABAddressBookCopyArrayOfAllGroups(myAddressBook);
if(groupsRef) {
NSUInteger groupsCount = CFArrayGetCount(groupsRef);
for(NSUInteger idx = 0; idx < groupsCount; ++idx) {
ABRecordRef groupRef = CFArrayGetValueAtIndex(groupsRef, idx);
ABRecordID groupID = ABRecordGetRecordID(groupRef);
CFArrayRef membersRef = ABGroupCopyArrayOfAllMembers(groupRef);
if(membersRef) {
NSUInteger membersCount = CFArrayGetCount(membersRef);
for(NSUInteger idx = 0; idx < membersCount; ++idx) {
ABRecordRef memberRef = CFArrayGetValueAtIndex(membersRef, idx);
ABRecordID memberID = ABRecordGetRecordID(memberRef);
// your code
}
CFRelease(membersRef);
}
}
CFRelease(groupsRef);
}

Answer 3

I scan all groups and people in them, and save person recordID and group recordID to a NSDictionary.
I keep this NDDictionary till app gone, so just need to lookup this NSDictionary for person's group ID.
NSMutableDictionary *dic = [NSMutableDictionary dictionary];
CFArrayRef allGroup = ABAddressBookCopyArrayOfAllGroups( AddressBookManager.addressBook );
CFIndex nGroup = ABAddressBookGetGroupCount(AddressBookManager.addressBook);
NSMutableArray *array = [[NSMutableArray alloc] init];
for (CFIndex index = 0; index < nGroup; index ++)
{
ABRecordRef group = CFArrayGetValueAtIndex(allGroup, index);
ABRecordID groupID = ABRecordGetRecordID(group);
CFArrayRef allPeople = ABGroupCopyArrayOfAllMembers(group);
CFIndex nPeople = CFArrayGetCount(allPeople);
for( CFIndex personIndex = 0; personIndex < nPeople; personIndex++ )
{
ABRecordRef person = CFArrayGetValueAtIndex( allPeople, personIndex );
ABRecordID personID = ABRecordGetRecordID(person);
NSNumber *value = [NSNumber numberWithInt:groupID];
NSString *key = [NSString stringWithFormat:#"%d", personID];
[dic setValue:value forKey:key];
}
CFRelease(allPeople);
}