2 class Picture < Peta::Content
4 belongs_to :original_picture
6 belongs_to :system_picture
8 has_one :resource_picture
9 has_one :resource_picture_picture
11 validates :original_picture_id, :presence => true, :numericality => true, :existence => {:both => false}
12 validates :revision, :presence => true, :numericality => true
13 validates :ext, :presence => true, :length => {:maximum => 4}, :inclusion => {:in => ['png', 'jpeg', 'gif']}
14 validates :width, :presence => true, :numericality => true, :natural_number => true
15 validates :height, :presence => true, :numericality => true, :natural_number => true
16 validates :filesize, :presence => true, :numericality => {:greater_than => 0, :less_than_or_equal_to => 2000000}, :natural_number => true
17 validates :md5, :presence => true, :length => {:minimum => 32, :maximum => 32}
18 validates :license_id, :presence => true, :numericality => true, :existence => {:both => false}
19 validates :system_picture_id, :presence => true, :numericality => true, :existence => {:both => false}
20 validates :artist_id, :presence => true, :numericality => true, :existence => {:both => false}
21 validates :license_group_module_name, :presence => true, :length => {:maximum => 50}
23 scope :find_index, -> do
27 scope :find_by_artist, -> (artist_id) do
28 find_index.where(artist_id: artist_id)
31 scope :find_by_md5, -> (md5) do
32 find_index.where(md5: md5).order(updated_at: :desc)
35 scope :find_by_md5_without_original_picture, -> (md5, original_picture_id) do
36 self.find_by_md5(md5).where.not(original_picture_id: original_picture_id).order(updated_at: :desc)
43 attr = {:width => rp.width, :height => rp.height, :ext => rp.ext, :filesize => rp.filesize,
44 :original_picture_id => rp.original_picture_id, :license_id => rp.license_id,
45 :system_picture_id => rp.system_picture_id, :artist_id => rp.artist_id,
47 :license_group_module_name => rp.license_group_module_name,
48 :license_group_settings => rp.license_group_settings,
49 :credit_picture_settings => rp.credit_picture_settings,
50 :license_settings => rp.license_settings
52 self.attributes = attr
53 self.revision = self.new_revision #Do not move to attr. new_revision reffernces self.original_picture_id
56 def visible? operators
60 def showable? operators = nil
61 return false unless self.original_picture
62 return true if self.own?(operators)
63 self.enable? and self.head?
67 "#{self.id}.#{self.ext}"
79 '/pictures/' + filename
83 {:src => self.url, :width => self.width, :height => self.height}
87 tw, th = PettanImager.thumbnail_size(self.width, self.height)
88 {:src => self.url, :width => tw, :height => th}
91 def tail_opt_img_tag img
92 {:src => img, :width => self.width, :height => self.height}
95 def tail_tmb_opt_img_tag img
96 tw, th = PettanImager.thumbnail_size(self.width, self.height)
97 {:src => img, :width => tw, :height => th}
101 self.license.license_group.caption.to_s + '[' + self.license.caption.to_s + ']'
109 Picture.where(original_picture_id: self.original_picture_id).maximum(:revision).to_i + 1
113 r = self.head.resource_picture
118 Picture.where(original_picture_id: opid).order('pictures.revision desc').first
122 Picture.head(self.original_picture_id)
130 self.ext == 'png' and self.license_extend.gif_convert >= 0
134 self.license_extend.reverse < 0 ? [''] : ['', 'v', 'h', 'vh']
137 def self.exist_by_md5 md5, opid
138 Picture.find_by_md5(md5, opid).empty? ? false : true
141 def self.list_by_original_picture_where original_picture_id
142 ['pictures.original_picture_id = ?', original_picture_id]
145 def self.list_by_original_picture original_picture_id, roles, page = 1, page_size = self.default_page_size
146 self.where(self.list_by_original_picture_where(original_picture_id)).includes(self.list_opt).order('pictures.revision desc').offset((page -1) * page_size).limit(page_size)
150 {:license => {}, :artist => {}}
153 def self.list_json_opt
154 {:include => {:license => {}, :artist => {}} }
160 if res = self.store_picture(imager, self.filename)
162 if gifimager = imager.to_gif
163 res = self.store_picture(gifimager, self.gifname)
173 def store_picture(imager, fn)
176 picdata = d.empty? ? imager.binary : imager.__send__(d)
177 res = PictureIO.picture_io.put(picdata, fn, d)
183 def restore(subdir = nil)
184 PictureIO.picture_io.get self.filename, subdir
187 def self.export(dt = nil)
188 pictures = Picture.includes(:artist).where('artists.author_id is not null')
189 pictures = pictures.where(['pictures.updated_at >= ?', dt]) if dt
190 pictures.order('pictures.updated_at desc').references(:artist)
193 def self.list_as_json_text ary
194 '[' + ary.map {|i| i.to_json_with_picture_data }.join(',') + ']'
198 Base64.encode64(self.restore)
201 def to_json_with_picture_data
202 self.to_json({:methods => :picture_data})
207 imager = PettanImager.load(File.open(Rails.root + 'app/assets/images/error.png', 'rb').read)
208 return false unless imager
213 "#{self.license_group_module_name.tableize}/attributes/credit"
216 def full_credit_template
217 "#{self.license_group_module_name.tableize}/attributes/full_credit"