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
15 def self.find_by_author author
16 Artist.find( :first, :conditions => ['author_id = ?', author.id])
19 def self.default_page_size
23 def self.max_page_size
27 def self.default_panel_size
31 def self.max_panel_size
35 def self.page prm = nil
41 def self.page_size prm = self.default_page_size
43 page_size = self.max_page_size if page_size > self.max_page_size
44 page_size = self.default_page_size if page_size < 1
48 def self.offset cnt, prm = nil
50 offset = cnt - 1 if offset >= cnt
51 offset = cnt - offset.abs if offset < 0
52 offset = 0 if offset < 0
56 def self.list opt = {}, page = 1, page_size = self.default_page_size
57 opt.merge!(self.list_opt) unless opt[:include]
58 opt.merge!({:order => 'updated_at desc', :limit => page_size, :offset => (page -1) * page_size})
59 Artist.find(:all, opt)
66 def self.list_json_opt
70 def self.show aid, opt = {}
71 a = Artist.find(aid, :include => self.show_include_opt(opt))
72 # raise ActiveRecord::Forbidden unless c.visible?(au)
76 def self.show_include_opt opt = {}
78 res.push(opt[:include]) if opt[:include]
82 def self.show_json_include_opt
86 def self.visible_count