Basic image resizing in Ruby on Rails

Question

I\'m creating a little photo sharing site for our home\'s intranet, and I have an upload feature, which uploads the photo at original size into the database. However, I also

Answer 1

You can resize with RMagick gem.

This is just a example that you can adapt:

require 'RMagick'

f = File.new( File.join(save_path, self.filename), "wb"  )
f.write form_file.read #remeber to set :html=>{:multipart => true} in form
f.close

image = Magick::Image.read(self.filename).first
image.change_geometry!("640x480") { |cols, rows, img|
    newimg = img.resize(cols, rows)
    newimg.write("newfilename.jpg")
}

More Info here: http://www.imagemagick.org/script/api.php#ruby