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 => {:both => false}
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 => {:minimum => 32, :maximum => 32}
15 validates :license_id, :presence => true, :numericality => true, :existence => {:both => false}
16 validates :artist_id, :presence => true, :numericality => true, :existence => {:both => false}
17 validates :artist_name, :presence => true
18 validates :classname, :presence => true, :length => {:maximum => 50}
20 before_validation :valid_encode
23 ['artist_name', 'classname', 'credit', 'settings'].each do |a|
24 next if attributes[a] == nil
25 raise Pettanr::BadRequest unless attributes[a].valid_encoding?
33 attr = {:width => rp.width, :height => rp.height, :ext => rp.ext, :filesize => rp.filesize,
34 :original_picture_id => rp.original_picture_id, :license_id => rp.license_id, :artist_id => rp.artist_id,
35 :md5 => rp.md5, :artist_name => rp.artist_name, :classname => rp.classname, :credit => rp.credit, :settings => rp.settings
37 self.attributes = attr
38 self.revision = self.new_revision #Do not move to attr. new_revision reffernces self.original_picture_id
42 roles = [roles] unless roles.respond_to?(:each)
43 ar = Picture.get_artist_from_roles roles
44 return false unless ar
45 self.artist_id == ar.id
52 def showable? au = nil
53 return false unless self.original_picture
54 return true if self.own?(au)
55 self.enable? and self.head?
59 "#{self.id}.#{self.ext}"
71 '/pictures/' + filename
75 {:src => self.url, :width => self.width, :height => self.height}
79 tw, th = PettanImager.thumbnail_size(self.width, self.height)
80 {:src => self.url, :width => tw, :height => th}
83 def tail_opt_img_tag img
84 {:src => img, :width => self.width, :height => self.height}
87 def tail_tmb_opt_img_tag img
88 tw, th = PettanImager.thumbnail_size(self.width, self.height)
89 {:src => img, :width => tw, :height => th}
93 Picture.maximum(:revision, :conditions => ['original_picture_id = ?', self.original_picture_id]).to_i + 1
97 r = self.head.resource_picture
102 Picture.find(:first, :conditions => ['original_picture_id = ?', opid], :order => 'pictures.revision desc')
106 Picture.head(self.original_picture_id)
114 self.ext == 'png' and self.flag_gif_convert >= 0
118 flag_reverse < 0 ? [''] : ['', 'v', 'h', 'vh']
121 def self.find_by_md5 md5
122 r = Picture.find :all, :conditions => ['pictures.md5 = ?', md5], :order => 'pictures.updated_at desc'
125 def self.list_by_md5 md5, opid = nil
126 cond = if opid.blank?
127 ['pictures.md5 = ?', md5]
129 ['pictures.md5 = ? and pictures.original_picture_id <> ?', md5, opid]
131 r = Picture.find :all, :conditions => cond, :order => 'pictures.updated_at desc'
134 def self.exist_by_md5 md5, opid
135 Picture.list_by_md5(md5, opid).empty? ? false : true
138 def self.show rid, roles
140 r = Picture.find(rid, opt)
141 raise ActiveRecord::Forbidden unless r.visible?(roles)
148 if res = self.store_picture(imager, self.filename)
150 if gifimager = imager.to_gif
151 res = self.store_picture(gifimager, self.gifname)
161 def store_picture(imager, fn)
164 picdata = d.empty? ? imager.binary : imager.__send__(d)
165 res = PictureIO.picture_io.put(picdata, fn, d)
171 def restore(subdir = nil)
172 PictureIO.picture_io.get self.filename, subdir
175 def self.export(dt = nil)
178 ['artists.author_id is not null and pictures.updated_at >= ?', dt]
180 'artists.author_id is not null'
182 opt.merge!({:conditions => cond})
183 opt.merge!({:include => {:artist => {}}, :order => 'pictures.updated_at desc'})
184 Picture.find(:all, opt)
187 def self.list_as_json_text ary
188 '[' + ary.map {|i| i.to_json_with_picture_data }.join(',') + ']'
192 Base64.encode64(self.restore)
195 def to_json_with_picture_data
196 self.to_json({:methods => :picture_data})
200 imager = PettanImager.load(File.open(Rails.root + 'app/assets/images/error.png', 'rb').read)
201 return false unless imager
206 "#{self.classname.tableize}/attributes/credit"
209 def full_credit_template
210 "#{self.classname.tableize}/attributes/full_credit"
215 @credit_data = JSON.parse(self.credit) unless @credit_data
222 return @flags if @flags
224 @flags = JSON.parse(self.settings)
227 @flags = {} unless @flags
236 @flag_open = (flags["open"] || -1) unless @flag_open
241 @flag_commercial = (flags["commercial"] || -1) unless @flag_commercial
246 @flag_official = (flags["official"] || -1) unless @flag_official
251 @flag_attribution = (flags["attribution"] || -1) unless @flag_attribution
256 @flag_derive = (flags["derive"] || -1) unless @flag_derive
261 @flag_thumbnail = (flags["thumbnail"] || -1) unless @flag_thumbnail
266 @flag_gif_convert = (flags["gif_convert"] || -1) unless @flag_gif_convert
271 @flag_reverse = (flags["reverse"] || -1) unless @flag_reverse
276 @flag_resize = (flags["resize"] || -1) unless @flag_resize
281 @flag_sync_vh = (flags["sync_vh"] || -1) unless @flag_sync_vh
286 @flag_overlap = (flags["overlap"] || -1) unless @flag_overlap