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Commit Description:
- clean up link to problem stat and user stat...
Commit Description:
- clean up link to problem stat and user stat
(grafted from 45d1e12e9794a23a5431222fe2f4c7461d73a529)
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db/migrate/005_add_index_to_submissions.rb
| 9 lines
| 219 B
| text/x-ruby
| RubyLexer
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r0 | class AddIndexToSubmissions < ActiveRecord::Migration | ||
def self.up | ||||
add_index :submissions, [:user_id, :problem_id] | ||||
end | ||||
def self.down | ||||
remove_index :submissions, :column => [:user_id, :problem_id] | ||||
end | ||||
end | ||||