1 class Artist < ActiveRecord::Base
3 has_many :original_pictures
5 has_many :resource_pictures
7 validates :name, :presence => true, :length => {:maximum => 30}
8 validates :author_id, :numericality => {:allow_blank => true}
11 self.name = 'no name' if self.name.blank?
15 return false unless au
16 self.author_id = au.id
21 self.author_id == au.id
22 elsif au.is_a?(Artist)
31 return false if MagicNumber['run_mode'] == 1
32 elsif au.is_a?(Author)
40 def self.find_by_author author
41 Artist.find( :first, :conditions => ['author_id = ?', author.id])
44 def self.default_page_size
48 def self.max_page_size
52 def self.page prm = nil
58 def self.page_size prm = self.default_page_size
60 page_size = self.max_page_size if page_size > self.max_page_size
61 page_size = self.default_page_size if page_size < 1
65 def self.offset cnt, prm = nil
67 offset = cnt - 1 if offset >= cnt
68 offset = cnt - offset.abs if offset < 0
69 offset = 0 if offset < 0
73 def self.list page = 1, page_size = self.default_page_size
75 opt.merge!(Artist.list_opt)
76 opt.merge!({:limit => page_size, :offset => (page -1) * page_size}) if page_size > 0
77 opt.merge!({:order => 'created_at desc'})
78 Artist.find(:all, opt)
82 {:include => {:author => {}} }
85 def self.list_json_opt
86 {:include => {:author => {}} }
91 opt.merge!(Artist.show_opt)
92 res = Artist.find(aid, opt)
93 raise ActiveRecord::Forbidden unless res.visible?(au)
99 opt.merge!(Artist.show_opt)
100 res = Artist.find sid, opt
101 raise ActiveRecord::Forbidden unless res.own?(au)
106 {:include => {:author => {}} }
109 def self.show_json_opt
110 {:include => {:author => {}} }
113 def self.visible_count