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 :md5, :presence => true, :length => {:maximum => 32}
15 validates :license_id, :presence => true, :numericality => true, :existence => true
16 validates :artist_id, :presence => true, :numericality => true, :existence => true
17 validates :artist_name, :presence => true
18 validates :classname, :presence => true, :length => {:maximum => 50}
25 "#{self.id}.#{self.dext}"
41 '/pictures/' + filename
44 def self.list_by_md5 md5, opid
45 r = Picture.find :all, :conditions => ['pictures.md5 = ? and pictures.original_picture_id <> ?', md5, opid], :order => 'pictures.updated_at desc'
48 def self.exist_by_md5 md5, opid
49 Picture.list_by_md5(md5, opid).empty? ? false : true
53 r = self.resource_picture
58 Picture.maximum(:revision, :conditions => ['original_picture_id = ?', self.original_picture_id]).to_i + 1
70 rimg.flip.flop.to_blob
74 self.dext == 'png' and self.flag_gif_convert >= 0
77 def self.png_to_gif(data)
80 mgk = Magick::Image.from_blob(data).shift
90 flag_reverse < 0 ? [''] : ['', 'v', 'h', 'vh']
94 attr = {:width => rp.width, :height => rp.height, :ext => rp.ext, :filesize => rp.filesize,
95 :original_picture_id => rp.original_picture_id, :license_id => rp.license_id, :artist_id => rp.artist_id,
96 :md5 => rp.md5, :artist_name => rp.artist_name, :classname => rp.classname, :credit => rp.credit, :settings => rp.settings
98 self.attributes = attr
103 self.revision = self.new_revision
105 if res = self.store_picture(mgk, self.filename)
107 if gifmgk = Picture.png_to_gif(mgk.to_blob)
108 res = self.store_picture(gifmgk, self.gifname)
118 def store_picture(mgk, fn)
121 picdata = d.empty? ? mgk.to_blob : self.__send__(d, mgk)
122 res = PictureIO.picture_io.put(picdata, fn, d)
128 def restore(subdir = nil)
129 PictureIO.picture_io.get self.filename, subdir
133 r = Picture.find(pid)
134 # raise ActiveRecord::Forbidden unless c.visible?(au)
139 "#{self.classname.tableize}/attributes/credit"
144 @credit_data = JSON.parse(self.credit) unless @credit_data
151 return @flags if @flags
153 @flags = JSON.parse(self.settings)
156 @flags = {} unless @flags
165 @flag_open = (flags["open"] || -1) unless @flag_open
170 @flag_commercial = (flags["commercial"] || -1) unless @flag_commercial
175 @flag_official = (flags["official"] || -1) unless @flag_official
180 @flag_attribution = (flags["attribution"] || -1) unless @flag_attribution
185 @flag_derive = (flags["derive"] || -1) unless @flag_derive
190 @flag_thumbnail = (flags["thumbnail"] || -1) unless @flag_thumbnail
195 @flag_gif_convert = (flags["gif_convert"] || -1) unless @flag_gif_convert
200 @flag_reverse = (flags["reverse"] || -1) unless @flag_reverse
205 @flag_resize = (flags["resize"] || -1) unless @flag_resize
210 @flag_sync_vh = (flags["sync_vh"] || -1) unless @flag_sync_vh
215 @flag_overlap = (flags["overlap"] || -1) unless @flag_overlap