I'm looking to use predicateForEnablingContact inside a CNContactPickerViewController to only enable contacts that have phoneNumbers that match the following regular expression ^\\+1[2-9]\\d{9}$.
This will mean looking at a contacts phoneNumbers and checking to see if at least one or more matches the following expression.
I started small by using the following trying to following the NSPredicate docs here:
let predicate = NSPredicate(format: "ANY self.phoneNumbers.'value'.'stringValue' BEGINSWITH %@", "1111")
contactPicker.predicateForEnablingContact = predicate
However, I'm unable to get past this part. I always seem to get the following error in my logs when running:
2023-06-11 21:31:15.703957+0100 Test2[9610:702640] [CNUI ERROR] Error when showing picker: Error Domain=CNErrorDomain Code=300 "(null)" UserInfo={CNValidationErrors=(
"Error Domain=CNErrorDomain Code=400 \"Invalid Predicate\" UserInfo={NSLocalizedDescription=Invalid Predicate, NSLocalizedFailureReason=The operation couldn\U2019t be completed because its predicate is invalid.}"
Does anyone have any ideas as to how I'd write a NSPredicate that matches the ruleset above please?
Edit:
I have also tried using
NSPredicate(format: "phoneNumbers.@count > 0 AND SUBQUERY(phoneNumbers, $phoneNumber, $phoneNumber.value.stringValue != nil).@count > 0"`
But get the following...
predicate is invalid., CNKeyPaths=(\n \"value.stringValue\"\n)}"