2 class Picture < ActiveRecord::Base
3 belongs_to :original_picture
6 has_one :resource_picture
8 validates :original_picture_id, :presence => true, :numericality => true, :existence => true
9 validates :revision, :presence => true, :numericality => true
10 validates :ext, :presence => true, :length => {:maximum => 4}, :inclusion => {:in => ['png', 'jpeg', 'gif']}
11 validates :width, :presence => true, :numericality => true, :natural_number => true
12 validates :height, :presence => true, :numericality => true, :natural_number => true
13 validates :filesize, :presence => true, :numericality => {:greater_than => 0, :less_than_or_equal_to => 2000000}, :natural_number => true
14 validates :license_id, :presence => true, :numericality => true, :existence => true
15 validates :artist_id, :presence => true, :numericality => true, :existence => true
16 validates :artist_name, :presence => true
17 validates :classname, :presence => true, :length => {:maximum => 50}
24 "#{self.id}.#{self.dext}"
36 Picture.maximum(:revision, :conditions => ['original_picture_id = ?', self.original_picture_id]).to_i + 1
48 rimg.flip.flop.to_blob
52 self.dext == 'png' and self.flag_gif_convert >= 0
55 def self.png_to_gif(data)
58 mgk = Magick::Image.from_blob(data).shift
68 flag_reverse < 0 ? [''] : ['', 'v', 'h', 'vh']
72 attr = {:width => rp.width, :height => rp.height, :ext => rp.ext, :filesize => rp.filesize,
73 :original_picture_id => rp.original_picture_id, :license_id => rp.license_id, :artist_id => rp.artist_id,
74 :artist_name => rp.artist_name, :classname => rp.classname, :credit => rp.credit, :settings => rp.settings
76 self.attributes = attr
81 self.revision = self.new_revision
83 if res = self.store_picture(mgk, self.filename)
85 if gifmgk = Picture.png_to_gif(mgk.to_blob)
86 res = self.store_picture(gifmgk, self.gifname)
96 def store_picture(mgk, fn)
99 picdata = d.empty? ? mgk.to_blob : self.__send__(d, mgk)
100 res = PictureIO.picture_io.put(picdata, fn, d)
106 def restore(subdir = nil)
107 PictureIO.resource_picture_io.get self.filename, subdir
111 r = Picture.find(pid)
112 # raise ActiveRecord::Forbidden unless c.visible?(au)
117 "#{self.classname.tableize}/attributes/credit"
122 @credit_data = JSON.parse(self.credit) unless @credit_data
129 return @flags if @flags
131 @flags = JSON.parse(self.settings)
134 @flags = {} unless @flags
143 @flag_open = (flags["open"] || -1) unless @flag_open
148 @flag_commercial = (flags["commercial"] || -1) unless @flag_commercial
153 @flag_official = (flags["official"] || -1) unless @flag_official
158 @flag_attribution = (flags["attribution"] || -1) unless @flag_attribution
163 @flag_derive = (flags["derive"] || -1) unless @flag_derive
168 @flag_thumbnail = (flags["thumbnail"] || -1) unless @flag_thumbnail
173 @flag_gif_convert = (flags["gif_convert"] || -1) unless @flag_gif_convert
178 @flag_reverse = (flags["reverse"] || -1) unless @flag_reverse
183 @flag_resize = (flags["resize"] || -1) unless @flag_resize
188 @flag_sync_vh = (flags["sync_vh"] || -1) unless @flag_sync_vh
193 @flag_overlap = (flags["overlap"] || -1) unless @flag_overlap