- def self.page_size prm = self.default_page_size
- page_size = prm.to_i
- page_size = self.max_page_size if page_size > self.max_page_size
- page_size = self.default_page_size if page_size < 1
- page_size
- end
-
- def self.offset cnt, prm = nil
- offset = prm.to_i
- offset = cnt - 1 if offset >= cnt
- offset = cnt - offset.abs if offset < 0
- offset = 0 if offset < 0
- offset
- end
-
- def self.list opt = {}, page = 1, page_size = self.default_page_size
- opt.merge!(self.list_opt) unless opt[:include]
- opt.merge!({:order => 'updated_at desc', :limit => page_size, :offset => (page -1) * page_size})
- Artist.find(:all, opt)