偶尔发现不能 Marshal.dump 分页数据，这怎么回事？现在 will_paginate 和 kaminari 都返回 ActiveRecord::Relation 了
Marshal.dump Question.where(id:1)
#=> "\x04\bo:\eActiveRecord::Relation':\v.....
Marshal.dump Question.where(id:1).page(1)
#TypeError: can't dump anonymous class #<Module:0x00000003ea17f0>
# from (irb):16:in `dump'
# from (irb):16
# from /home/qiu/.rvm/gems/ruby-1.9.3-p0/gems/railties-#3.2.2/lib/rails/commands/console.rb:47:in `start'
# from /home/qiu/.rvm/gems/ruby-1.9.3-p0/gems/railties-#3.2.2/lib/rails/commands/console.rb:8:in `start'
# from /home/qiu/.rvm/gems/ruby-1.9.3-p0/gems/railties-#3.2.2/lib/rails/commands.rb:41:in `<top (required)>'
# from script/rails:6:in `require'
# from script/rails:6:in `<main>'
Marshal can't dump following objects:
anonymous Class/Module.
objects which related to its system (ex: Dir, File::Stat, IO, File, Socket and so on)
an instance of MatchData, Data, Method, UnboundMethod, Proc, Thread, ThreadGroup, Continuation
objects which defines singleton methods
def get_answers(page)
Rails.cache.fetch "test1/#{page}" do
answers.page(page)
end
end
上面的就不能用了，这怎么解决？？ active_support/cache.rb @value = Marshal.dump(value)
Rei
#7
2012年03月21日
# Wrap an Array object to make it paginatable
# ==== Options
# * <tt>:limit</tt> - limit
# * <tt>:offset</tt> - offset
# * <tt>:total_count</tt> - total_count
def self.paginate_array(array, options = {})
PaginatableArray.new array, options
end
https://github.com/amatsuda/kaminari/blob/master/lib/kaminari/models/array_extension.rb
kehao
#8
2012年03月21日
