-class Picture < ActiveRecord::Base
+#実素材
+class Picture < Peta::Content
+ load_manifest
+ belongs_to :original_picture
+ belongs_to :license
+ belongs_to :system_picture
+ belongs_to :artist
+ has_one :resource_picture
+
+ validates :original_picture_id, :presence => true, :numericality => true, :existence => {:both => false}
+ validates :revision, :presence => true, :numericality => true
+ validates :ext, :presence => true, :length => {:maximum => 4}, :inclusion => {:in => ['png', 'jpeg', 'gif']}
+ validates :width, :presence => true, :numericality => true, :natural_number => true
+ validates :height, :presence => true, :numericality => true, :natural_number => true
+ validates :filesize, :presence => true, :numericality => {:greater_than => 0, :less_than_or_equal_to => 2000000}, :natural_number => true
+ validates :md5, :presence => true, :length => {:minimum => 32, :maximum => 32}
+ validates :license_id, :presence => true, :numericality => true, :existence => {:both => false}
+ validates :system_picture_id, :presence => true, :numericality => true, :existence => {:both => false}
+ validates :artist_id, :presence => true, :numericality => true, :existence => {:both => false}
+ validates :artist_name, :presence => true
+ validates :license_group_module_name, :presence => true, :length => {:maximum => 50}
+
+ def supply_default
+ end
+
+ def overwrite rp
+ attr = {:width => rp.width, :height => rp.height, :ext => rp.ext, :filesize => rp.filesize,
+ :original_picture_id => rp.original_picture_id, :license_id => rp.license_id,
+ :system_picture_id => rp.system_picture_id, :artist_id => rp.artist_id,
+ :md5 => rp.md5, :artist_name => rp.artist_name,
+ :license_group_module_name => rp.license_group_module_name,
+ :license_group_settings => rp.license_group_settings,
+ :credit_picture_settings => rp.credit_picture_settings,
+ :license_settings => rp.license_settings
+ }
+ self.attributes = attr
+ self.revision = self.new_revision #Do not move to attr. new_revision reffernces self.original_picture_id
+ end
+
+ def visible? operators
+ return true
+ end
+
+ def showable? operators = nil
+ return false unless self.original_picture
+ return true if self.own?(operators)
+ self.enable? and self.head?
+ end
+
+ def filename
+ "#{self.id}.#{self.ext}"
+ end
+
+ def gifname
+ "#{self.id}.gif"
+ end
+
+ def mime_type
+ "image/#{self.ext}"
+ end
+
+ def url
+ '/pictures/' + filename
+ end
+
+ def opt_img_tag
+ {:src => self.url, :width => self.width, :height => self.height}
+ end
+
+ def tmb_opt_img_tag
+ tw, th = PettanImager.thumbnail_size(self.width, self.height)
+ {:src => self.url, :width => tw, :height => th}
+ end
+
+ def tail_opt_img_tag img
+ {:src => img, :width => self.width, :height => self.height}
+ end
+
+ def tail_tmb_opt_img_tag img
+ tw, th = PettanImager.thumbnail_size(self.width, self.height)
+ {:src => img, :width => tw, :height => th}
+ end
+
+ def alt_name
+ self.license.license_group.caption.to_s + '[' + self.license.caption.to_s + ']'
+ end
+
+ def symbol_option
+ self.tmb_opt_img_tag
+ end
+
+ def new_revision
+ Picture.maximum(:revision, :conditions => ['original_picture_id = ?', self.original_picture_id]).to_i + 1
+ end
+
+ def enable?
+ r = self.head.resource_picture
+ r ? true : false
+ end
+
+ def self.head opid
+ Picture.find(:first, :conditions => ['original_picture_id = ?', opid], :order => 'pictures.revision desc')
+ end
+
+ def head
+ Picture.head(self.original_picture_id)
+ end
+
+ def head?
+ self == head
+ end
+
+ def to_gif?
+ self.ext == 'png' and self.license_extend.gif_convert >= 0
+ end
+
+ def subdirs
+ self.license_extend.reverse < 0 ? [''] : ['', 'v', 'h', 'vh']
+ end
+
+ def self.find_by_md5 md5
+ r = Picture.find :all, :conditions => ['pictures.md5 = ?', md5], :order => 'pictures.updated_at desc'
+ end
+
+ def self.list_by_md5 md5, opid = nil
+ cond = if opid.blank?
+ ['pictures.md5 = ?', md5]
+ else
+ ['pictures.md5 = ? and pictures.original_picture_id <> ?', md5, opid]
+ end
+ r = Picture.find :all, :conditions => cond, :order => 'pictures.updated_at desc'
+ end
+
+ def self.exist_by_md5 md5, opid
+ Picture.list_by_md5(md5, opid).empty? ? false : true
+ end
+
+ def self.list_by_original_picture_where original_picture_id
+ ['pictures.original_picture_id = ?', original_picture_id]
+ end
+
+ def self.list_by_original_picture original_picture_id, roles, page = 1, page_size = self.default_page_size
+ 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)
+ end
+
+ def self.list_opt
+ {:license => {}, :artist => {}}
+ end
+
+ def self.list_json_opt
+ {:include => {:license => {}, :artist => {}} }
+ end
+
+ def store(imager)
+ res = false
+ if res = self.save
+ if res = self.store_picture(imager, self.filename)
+ if self.to_gif?
+ if gifimager = imager.to_gif
+ res = self.store_picture(gifimager, self.gifname)
+ else
+ res = false
+ end
+ end
+ end
+ end
+ res
+ end
+
+ def store_picture(imager, fn)
+ res = false
+ subdirs.each do |d|
+ picdata = d.empty? ? imager.binary : imager.__send__(d)
+ res = PictureIO.picture_io.put(picdata, fn, d)
+ break unless res
+ end
+ res
+ end
+
+ def restore(subdir = nil)
+ PictureIO.picture_io.get self.filename, subdir
+ end
+
+ def self.export(dt = nil)
+ opt = {}
+ cond = if dt
+ ['artists.author_id is not null and pictures.updated_at >= ?', dt]
+ else
+ 'artists.author_id is not null'
+ end
+ opt.merge!({:conditions => cond})
+ opt.merge!({:include => {:artist => {}}, :order => 'pictures.updated_at desc'})
+ Picture.find(:all, opt)
+ end
+
+ def self.list_as_json_text ary
+ '[' + ary.map {|i| i.to_json_with_picture_data }.join(',') + ']'
+ end
+
+ def picture_data
+ Base64.encode64(self.restore)
+ end
+
+ def to_json_with_picture_data
+ self.to_json({:methods => :picture_data})
+ end
+
+ def unpublish
+ imager = PettanImager.load(File.open(Rails.root + 'app/assets/images/error.png', 'rb').read)
+ return false unless imager
+ self.store imager
+ end
+
+ def credit_template
+ "#{self.license_group_module_name.tableize}/attributes/credit"
+ end
+
+ def full_credit_template
+ "#{self.license_group_module_name.tableize}/attributes/full_credit"
+ end
+
end
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