Show only the top and right borders of a view

CALayer *bordersLayer               = [CALayer layer];

bordersLayer.borderColor            = COLOR_GRAY_212.CGColor;

bordersLayer.borderWidth            = 1;

bordersLayer.frame                  = CGRectMake(-1, 0, CGRectGetWidth(view.frame)+1, CGRectGetHeight(view.frame)+1);

[view.layer addSublayer:bordersLayer];