1 class OriginalPicture < ActiveRecord::Base
3 belongs_to :original_picture_license_group
4 has_one :resource_picture
6 validates :ext, :presence => true, :length => {:maximum => 4}, :inclusion => {:in => ['png', 'jpeg', 'gif']}
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7 validates :width, :presence => true, :numericality => true, :natural_number => true
8 validates :height, :presence => true, :numericality => true, :natural_number => true
9 validates :filesize, :presence => true, :numericality => {:greater_than => 0, :less_than_or_equal_to => 2000000}, :natural_number => true
10 validates :artist_id, :presence => true, :numericality => true, :existence => true
12 before_destroy :destroy_with_file
14 def supply_default art
17 def self.default_page_size
21 def self.max_page_size
25 def self.page prm = nil
31 def self.page_size prm = self.default_page_size
33 page_size = self.max_page_size if page_size > self.max_page_size
34 page_size = self.default_page_size if page_size < 1
38 def self.list artist_id, opt = {}, page = 1, page_size = self.default_page_size
39 opt.merge!(self.list_opt) unless opt[:include]
40 opt.merge!({:conditions => ['artist_id = ?', artist_id],
41 :order => 'updated_at desc', :limit => page_size, :offset => (page -1) * page_size}
43 OriginalPicture.find(:all, opt)
47 {:include => {:resource_picture => {}}}
50 def self.list_json_opt
51 {:include => {:resource_picture => {}}}
54 def self.show cid, artist, opt = {}
55 pic = OriginalPicture.find(cid, :include => self.show_include_opt(opt))
56 raise ActiveRecord::Forbidden unless pic.own?(artist)
60 def self.edit cid, artist, opt = {}
61 pic = OriginalPicture.find(cid, :include => self.show_include_opt(opt))
62 raise ActiveRecord::Forbidden unless pic.own?(artist)
66 def self.show_include_opt opt = {}
67 res = {:resource_picture => {}}
68 res.merge!(opt[:include]) if opt[:include]
72 def self.show_json_include_opt
73 {:include => {:resource_picture => {}}}
77 PictureIO.original_picture_io.delete self.filename
78 self.resource_picture.destroy
86 "#{self.id}.#{self.dext}"
94 '/original_pictures/' + filename
97 def data_to_mgk picture_data
99 mgk = Magick::Image.from_blob(picture_data).shift
101 self.errors.add :base, 'magick failed'
107 def store(picture_data, art)
108 mgk = data_to_mgk picture_data
109 return false unless mgk
111 self.attributes = {:ext => mgk.format.downcase, :width => mgk.columns, :height => mgk.rows,
112 :filesize => mgk.filesize, :artist_id => art.id
114 OriginalPicture.transaction do
116 if res = PictureIO.original_picture_io.put(picture_data, self.filename)
119 self.errors.add :base, 'original picture io does not work'
120 raise ActiveRecord::Rollback
127 def restore(subdir = nil)
128 PictureIO.original_picture_io.get self.filename, subdir
132 return false unless art
133 self.artist_id == art.id