1 class Artist < ActiveRecord::Base
3 has_many :original_pictures
5 validates :name, :presence => true, :length => {:maximum => 30}
6 # validates :default_license_id, :presence => true, :numericality => true, :existence => true
9 self.name = 'no name' if self.name.blank?
13 return false unless au
14 self.author_id = au.id
18 return false unless author
19 self.author_id == author.id
24 raise ActiveRecord::Forbidden unless res.own?(au)
28 def self.find_by_author author
29 Artist.find( :first, :conditions => ['author_id = ?', author.id])
32 def self.default_page_size
36 def self.max_page_size
40 def self.default_panel_size
44 def self.max_panel_size
48 def self.page prm = nil
54 def self.page_size prm = self.default_page_size
56 page_size = self.max_page_size if page_size > self.max_page_size
57 page_size = self.default_page_size if page_size < 1
61 def self.offset cnt, prm = nil
63 offset = cnt - 1 if offset >= cnt
64 offset = cnt - offset.abs if offset < 0
65 offset = 0 if offset < 0
69 def self.list opt = {}, page = 1, page_size = self.default_page_size
70 opt.merge!(self.list_opt) unless opt[:include]
71 opt.merge!({:order => 'updated_at desc', :limit => page_size, :offset => (page -1) * page_size})
72 Artist.find(:all, opt)
79 def self.list_json_opt
83 def self.show aid, opt = {}
84 a = Artist.find(aid, :include => self.show_include_opt(opt))
85 # raise ActiveRecord::Forbidden unless c.visible?(au)
89 def self.show_include_opt opt = {}
91 res.push(opt[:include]) if opt[:include]
95 def self.show_json_include_opt
99 def self.visible_count