jesskturner

class User
  has_many :things
end

class Thing
  belongs_to :user
  validate :on => :create do
    if user && user.things.length >= thing_limit
      errors.add(:user, :too_many_things)
    end

jesskturner

for family: String in UIFont.familyNames()
{
     print("family: \(family)")
     for names: String in UIFont.fontNamesForFamilyName(family)
     {
         print("== \(names)")
     }
}

jesskturner

for (NSString* family in [UIFont familyNames])
{
    NSLog(@"family: %@", family);
    for (NSString* name in [UIFont fontNamesForFamilyName: family])
    {
        NSLog(@"  %@", name);
    }
}

jesskturner

extension String {
    /// Truncates the string to length number of characters and 
    /// appends optional trailing string if longer
    func truncate(length: Int, trailing: String? = nil) -> String {
        if self.characters.count > length {
            return self.substringToIndex(self.startIndex.advancedBy(length)) + (trailing ?? "")
        } else {
            return self
        }
    }