defsan

#
# Database.yml
#
development_ios:
  # <<: *default
  adapter: sqlite3
  pool: 5
  timeout: 5000
  database: db/development_ios.sqlite3

defsan

grayImage.lockFocus()
var ciImage:CIImage = CIImage(data: image.TIFFRepresentation)
var monochromeFilter:CIFilter = CIFilter(name: "CIColorMonochrome")
monochromeFilter.setDefaults()
monochromeFilter.setValue(ciImage, forKey:kCIInputImageKey)
monochromeFilter.setValue(CIColor(red: 0, green: 0, blue: 0, alpha: 1), forKey:"inputColor")
monochromeFilter.setValue(NSNumber(float: 1), forKey:"inputIntensity")
        
var outputImage:CIImage = monochromeFilter.valueForKey(kCIOutputImageKey) as! CIImage
outputImage.drawAtPoint(NSPoint.zeroPoint, fromRect: NSRect(origin: NSPoint.zeroPoint, size: image.size), operation: NSCompositingOperation.CompositeCopy, fraction: 0.6)

defsan

require 'matrix'

# Matrix enhance
class Matrix
  def []=(i, j, x)
    @rows[i][j] = x
  end
end

#

defsan

    employee ? employee.full_name : 'None'

or this:

    employee.try(:full_name).presence || 'None'