1 class OriginalPicture < ActiveRecord::Base
3 has_one :resource_picture
5 validates :ext, :presence => true, :length => {:maximum => 4}, :inclusion => {:in => ['png', 'jpeg', 'gif']}
\r
6 validates :width, :presence => true, :numericality => true, :natural_number => true
7 validates :height, :presence => true, :numericality => true, :natural_number => true
8 validates :filesize, :presence => true, :numericality => {:greater_than => 0, :less_than_or_equal_to => 2000000}, :natural_number => true
9 validates :artist_id, :presence => true, :numericality => true, :existence => true
11 before_destroy :destroy_with_file
13 def supply_default art
16 def self.default_page_size
20 def self.max_page_size
24 def self.page prm = nil
30 def self.page_size prm = self.default_page_size
32 page_size = self.max_page_size if page_size > self.max_page_size
33 page_size = self.default_page_size if page_size < 1
37 def self.list artist_id, opt = {}, page = 1, page_size = self.default_page_size
38 opt.merge!(self.list_opt) unless opt[:include]
39 opt.merge!({:conditions => ['artist_id = ?', artist_id],
40 :order => 'updated_at desc', :limit => page_size, :offset => (page -1) * page_size}
42 OriginalPicture.find(:all, opt)
46 {:include => {:resource_picture => {}}}
49 def self.list_json_opt
50 {:include => {:resource_picture => {}}}
53 def self.show cid, artist, opt = {}
54 pic = OriginalPicture.find(cid, :include => self.show_include_opt(opt))
55 raise ActiveRecord::Forbidden unless pic.own?(artist)
59 def self.edit cid, artist, opt = {}
60 pic = OriginalPicture.find(cid, :include => self.show_include_opt(opt))
61 raise ActiveRecord::Forbidden unless pic.own?(artist)
65 def self.show_include_opt opt = {}
66 res = {:resource_picture => {}}
67 res.merge!(opt[:include]) if opt[:include]
71 def self.show_json_include_opt
72 {:include => {:resource_picture => {}}}
76 PictureIO.original_picture_io.delete self.filename
77 self.resource_picture.destroy
85 "#{self.id}.#{self.dext}"
93 '/original_pictures/' + filename
96 def data_to_mgk picture_data
98 mgk = Magick::Image.from_blob(picture_data).shift
100 self.errors.add :base, 'magick failed'
106 def store(picture_data, art)
107 mgk = data_to_mgk picture_data
108 return false unless mgk
110 self.attributes = {:ext => mgk.format.downcase, :width => mgk.columns, :height => mgk.rows,
111 :filesize => mgk.filesize, :artist_id => art.id
113 OriginalPicture.transaction do
115 if res = PictureIO.original_picture_io.put(picture_data, self.filename)
118 self.errors.add :base, 'original picture io does not work'
119 raise ActiveRecord::Rollback
126 def restore(subdir = nil)
127 PictureIO.original_picture_io.get self.filename, subdir
131 return false unless art
132 self.artist_id == art.id