PQDiscreteQuestionCell.m

- (IBAction)buttonTapped:(UIButton *)aSender {
    self.validationErrors = nil;

    // Translate Button -> Option
    NSUInteger index = [self.buttonsView.subviews indexOfObject:aSender];
    PQMarkSheetAnswer *selectedOption = (self.options)[index];

    // When we have single choice we need to toggle options
    if (!self.allowsMultipleSelection && [self.selectedOptions count] > 0) {
        PQMarkSheetAnswer *alreadySelectedOption = [self.selectedOptions firstObject];
        NSUInteger selectedOptionIndex = [self.options indexOfObject:alreadySelectedOption];
        if (selectedOptionIndex == NSNotFound) {
            NSDictionary *results = [[[(PQMarkingSheetViewController *)self.delegate interview] result] results];
            DDLogError(@"PRAC-711 Occured!\n"
                        "Cell/Question: %@\n"
                        "Options: %@\n"
                        "SelectedOption: %@\n"
                        "SelectedOptions: %@\n"
                        "Buttons: %@\n"
                        "Touched button: %@\n"
                        "Results: %@", self.label.text, self.options, selectedOption, self.selectedOptions, self.buttonsView.subviews, aSender, results);

            // We remove the option we can't find in options from selected options
            // and just continue lower with selecting/deselecting
            [self.selectedOptions removeObject:alreadySelectedOption];
        }
        // Toggle only if the answer is not the same, otherwise it will be handled lower
        else if (alreadySelectedOption != selectedOption) {
            UIButton *alreadySelectedButton =
                [self.buttonsView subviews][selectedOptionIndex];
            alreadySelectedButton.selected = NO;
            [self.selectedOptions removeObject:alreadySelectedOption];
        }
    }

    // Allow option to be selected/deselected
    BOOL alreadySelected =
        [self.selectedOptions indexOfObject:selectedOption] != NSNotFound;
    if (alreadySelected) {
        aSender.selected = NO;
        [self.selectedOptions removeObject:selectedOption];
        [self.delegate questionCell:self didUpdateWithAnswers:self.selectedOptions];
    } else {
        aSender.selected = YES;
        [self.selectedOptions addObject:selectedOption];
        [self.delegate questionCell:self didUpdateWithAnswers:self.selectedOptions];
    }
}