GetViewConstraints.swift

extension UIView {
  func allConstraints() -> [NSLayoutConstraint] {
    var constraints = [NSLayoutConstraint]()
    constraints += self.constraints
    
    var superview = self.superview
    while superview != nil {
      for c in superview!.constraints {
        if c.firstItem as? UIView == self || c.secondItem as? UIView == self {
          constraints.append(c)
        }
      }
      superview = superview!.superview
    }
    
    return constraints
  }
}