111 lines
2.8 KiB
Ruby
111 lines
2.8 KiB
Ruby
require "mini_magick"
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require "fileutils"
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module Merged
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class Image < ActiveBase
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set_root_path Rails.root
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fields :name , :tags , :type , :size , :height , :width
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def change_name
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name
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end
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def aspect_ratio
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ratio = self.ratio
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ratios = (1..9).collect{ |i| ((ratio * i) - (ratio * i).round(0)).abs }
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min , min_index = ratios.each_with_index.min
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[(ratio * (min_index + 1) ).round(0).to_i , (min_index + 1) ]
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end
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def ratio
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return 0 unless self.height
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self.width.to_f / self.height
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end
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def copy()
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image = Image.new name: "#{name}_copy" , type: type , tags: (tags || "") ,
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width: width , height: height, size: size
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Image.insert(image) # assigns next id
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FileUtils.cp full_filename , image.full_filename
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image
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end
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def scale( new_size )
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mini = MiniMagick::Image.new( full_filename)
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mini.resize( new_size.to_s + "%")
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init_file_size
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end
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def crop( to_size )
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mini = MiniMagick::Image.new(full_filename)
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mini.crop( to_size )
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init_file_size
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end
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#save an io as new image. The filename is the id, type taken from io
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def self.create_new(name , tags, io)
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original , end_ = io.original_filename.split("/").last.split(".")
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magick_image = MiniMagick::Image.read(io)
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ending = magick_image.type.downcase
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name = original if( name.blank? )
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image = Image.new name: name , type: ending , tags: (tags || "") ,
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width: magick_image.width, height: magick_image.height ,
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size: (magick_image.size/1024).to_i
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self.insert(image) # assigns next id
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full_filename = image.id.to_s + "." + ending
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magick_image.write(Rails.root.join("app/assets/images/cms/", full_filename))
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image
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end
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def destroy(editor)
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File.delete self.full_filename
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delete_save!(editor)
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end
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def asset_name
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image_root + "/" + self.id.to_s
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end
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def full_filename
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full_filename = self.id.to_s + "." + self.type
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Rails.root.join(asset_root, full_filename)
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end
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def self.transform
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Image.all.each do |image|
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last = image.name.split.last
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image.tags = ""
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["wide", "small" , "big" , "room"].each do |tag|
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if(last == tag)
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image.name = image.name.gsub(last,"").strip
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image.tags = last
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end
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end
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image.save
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end
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end
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def self.root
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"app/assets/images/cms"
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end
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def init_file_size
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magick_image = MiniMagick::Image.open(full_filename)
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self.width = magick_image.width
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self.height = magick_image.height
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self.size = (magick_image.size/1024).to_i
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end
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private
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def asset_root
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"app/assets/images/" + image_root
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end
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def image_root
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"cms"
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end
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end
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end
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