Comments on: Watermarking an image in Rails http://www.danielfischer.com/2007/04/16/watermarking-an-image-in-rails/ Ruby, Ruby on Rails, Los Angeles, Technology, Geek, Science, Life Tue, 06 Jan 2009 07:40:10 +0000 http://wordpress.org/?v=2.5.1 By: PS http://www.danielfischer.com/2007/04/16/watermarking-an-image-in-rails/#comment-22819 PS Wed, 30 Apr 2008 01:25:38 +0000 http://www.danielfischer.com/2007/04/16/watermarking-an-image-in-rails/#comment-22819 (Please delete my previous post) Put after_save :watermark_image at the top of your model file. Example: class Asset::image after_save :watermark_image :storage => :file_system ...blah blah blah, attachment_fu junk... validates_as_attachment def watermark_image ...watermark method... end end (Please delete my previous post)

Put after_save :watermark_image at the top of your model file.

Example:

class Asset::image
after_save :watermark_image

:storage => :file_system
…blah blah blah, attachment_fu junk…

validates_as_attachment

def watermark_image
…watermark method…
end
end

]]> By: Boris http://www.danielfischer.com/2007/04/16/watermarking-an-image-in-rails/#comment-11583 Boris Fri, 28 Sep 2007 12:38:29 +0000 http://www.danielfischer.com/2007/04/16/watermarking-an-image-in-rails/#comment-11583 It's after_save in fact ... Cheers, boris It’s after_save in fact …

Cheers,
boris

]]> By: D http://www.danielfischer.com/2007/04/16/watermarking-an-image-in-rails/#comment-11459 D Tue, 25 Sep 2007 13:34:50 +0000 http://www.danielfischer.com/2007/04/16/watermarking-an-image-in-rails/#comment-11459 I'm new to rails and attachment_fu can you post your model file code for this. My model currently looks like this class Asset :image, :storage => :file_system, :thumbnails => { :thumb_sm => [25,25], :thumb_lg => [50,50], :small => "150x150>", :medium => "300x300>", :large => "450x450>" } validates_as_attachment def watermark_image dst = Magick::Image.read("#{RAILS_ROOT}/public/#{self.public_filename}").first src = Magick::Image.read("#{RAILS_ROOT}/config/upshot.png").first result = dst.composite(src, Magick::SouthEastGravity, Magick::OverCompositeOp) result.write("#{RAILS_ROOT}/public/#{self.public_filename}") end Where should i place the after_safe effent because i want all the generated images to have the watermark I’m new to rails and attachment_fu can you post your model file code for this.

My model currently looks like this
class Asset :image,
:storage => :file_system,
:thumbnails => { :thumb_sm => [25,25],
:thumb_lg => [50,50],
:small => “150×150>”,
:medium => “300×300>”,
:large => “450×450>”
}

validates_as_attachment

def watermark_image
dst = Magick::Image.read(”#{RAILS_ROOT}/public/#{self.public_filename}”).first
src = Magick::Image.read(”#{RAILS_ROOT}/config/upshot.png”).first
result = dst.composite(src, Magick::SouthEastGravity, Magick::OverCompositeOp)
result.write(”#{RAILS_ROOT}/public/#{self.public_filename}”)
end

Where should i place the after_safe effent because i want all the generated images to have the watermark

]]>