plus-plus 0.0.1
counter_cache, but much more powerful
Gemfile:
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安裝:
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Development 相依性套件 (7):
activerecord
~> 4.1.4
bundler
~> 1.3
factory_girl
~> 4.4.0
pry
>= 0
rake
>= 0
rspec-rails
~> 2.14
sqlite3
>= 0