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
20 return false unless au.is_a?(Author)
21 self.author_id == au.id
26 return false if MagicNumber['run_mode'] == 1
27 elsif au.is_a?(Author)
35 def self.find_by_author author
36 Artist.find( :first, :conditions => ['author_id = ?', author.id])
39 def self.default_page_size
43 def self.max_page_size
47 def self.page prm = nil
53 def self.page_size prm = self.default_page_size
55 page_size = self.max_page_size if page_size > self.max_page_size
56 page_size = self.default_page_size if page_size < 1
60 def self.offset cnt, prm = nil
62 offset = cnt - 1 if offset >= cnt
63 offset = cnt - offset.abs if offset < 0
64 offset = 0 if offset < 0
68 def self.list page = 1, page_size = self.default_page_size
70 opt.merge!(Artist.list_opt)
71 opt.merge!({:limit => page_size, :offset => (page -1) * page_size}) if page_size > 0
72 opt.merge!({:order => 'created_at desc'})
73 Artist.find(:all, opt)
77 {:include => {:author => {}} }
80 def self.list_json_opt
81 {:include => {:author => {}} }
86 opt.merge!(Artist.show_opt)
87 res = Artist.find(aid, opt)
88 raise ActiveRecord::Forbidden unless res.visible?(au)
94 opt.merge!(Artist.show_opt)
95 res = Artist.find sid, opt
96 raise ActiveRecord::Forbidden unless res.own?(au)
101 {:include => {:author => {}} }
104 def self.show_json_opt
105 {:include => {:author => {}} }
108 def self.visible_count