1サイズの画像に透かしプロセッサを追加しました。ただし、これを除いて、他のすべてのバージョンの画像がにアップロードされS3
ます。このサイズを変更したことを通知するAWS
必要があったと思いますが、その方法や場所がわかりません...
これが私のコードです:
lib / paperclip_processors / watermark.rb
module Paperclip
class Watermark < Processor
attr_accessor :current_geometry, :target_geometry, :format, :whiny, :convert_options, :watermark_path, :overlay, :position
def initialize file, options = {}, attachment = nil
super
geometry = options[:geometry]
@file = file
@crop = geometry[-1,1] == '#'
@target_geometry = Geometry.parse geometry
@current_geometry = Geometry.from_file @file
@convert_options = options[:convert_options]
@whiny = options[:whiny].nil? ? true : options[:whiny]
@format = options[:format]
@format_output = options[:format_output].nil? ? "jpg" : options[:format_output]
@watermark_path = options[:watermark_path]
@position = options[:position].nil? ? "SouthEast" : options[:position]
@overlay = options[:overlay].nil? ? true : false
@current_format = File.extname(@file.path)
@basename = File.basename(@file.path, @current_format)
end
def crop?
@crop
end
def convert_options?
not @convert_options.blank?
end
# Performs the conversion of the +file+ into a watermark. Returns the Tempfile
# that contains the new image.
def make
dst = Tempfile.new([@basename, @format].compact.join("."))
dst.binmode
if watermark_path
command = "composite"
params = %W[-gravity #{@position}]
params += %W[-geometry '#{@watermark_offset}'] if @watermark_offset
params += %W["#{watermark_path}" "#{fromfile}"]
params += transformation_command
params << "\"#{tofile(dst)}.#{@format_output}\""
else
command = "convert"
params = [fromfile]
params += transformation_command
params << tofile(dst)
end
puts command
puts "Params: " + params.to_s
begin
success = Paperclip.run(command, params.join(" "))
rescue ArgumentError, Cocaine::CommandLineError
raise Paperclip::Error, "There was an error processing the watermark for #{@basename}" if @whiny
end
dst
end
def fromfile
File.expand_path(@file.path)
end
def tofile(destination)
File.expand_path(destination.path)
end
def transformation_command
scale, crop = @current_geometry.transformation_to(@target_geometry, crop?)
trans = %W[-resize "#{scale}"]
trans += %W[-crop #{crop} +repage] if crop
trans << convert_options if convert_options?
trans
end
end
end
およびモデル:
require 'paperclip_processors/watermark'
class Price < ActiveRecord::Base
has_attached_file :picture,
:processors => [:watermark],
styles: {
thumb: '100x100#',
small: '320x200#',
medium: '640x400#',
large: {
:geometry => "920x575>",
:watermark_path => "#{Rails.root}/public/img/watermark.png"
}
}
end