1 class Author < ActiveRecord::Base
5 validates :name, :length => {:maximum => 30}
8 r.name = 'no name' if r.name.blank?
12 Artist.find_by_author(self) != nil
20 def self.default_page_size
24 def self.max_page_size
28 def self.default_panel_size
32 def self.max_panel_size
36 def self.page prm = nil
42 def self.page_size prm = self.default_page_size
44 page_size = self.max_page_size if page_size > self.max_page_size
45 page_size = self.default_page_size if page_size < 1
49 def self.offset cnt, prm = nil
51 offset = cnt - 1 if offset >= cnt
52 offset = cnt - offset.abs if offset < 0
53 offset = 0 if offset < 0
57 def self.list opt = {}, page = 1, page_size = self.default_page_size
58 opt.merge!(self.list_opt) unless opt[:include]
59 opt.merge!({:order => 'updated_at desc', :limit => page_size, :offset => (page -1) * page_size})
60 Author.find(:all, opt)
67 def self.list_json_opt
71 def self.show aid, opt = {}
72 a = Author.find(aid, :include => self.show_include_opt(opt))
73 # raise ActiveRecord::Forbidden unless c.visible?(au)
77 def self.show_include_opt opt = {}
79 res.push(opt[:include]) if opt[:include]
83 def self.show_json_include_opt
87 def self.visible_count