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20 lines
500 B
20 lines
500 B
class Semestres < ActiveRecord::Migration
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def self.up
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rename_column :courses, :period, :grade
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add_column :courses, :period, :string
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Course.find(:all).each do |c|
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c.update_attribute(:period, "2008.1")
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end
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remove_index :courses, :short_name
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add_index :courses, :short_name, :unique => false
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end
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def self.down
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remove_column :courses, :period
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rename_column :courses, :grade, :period
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remove_index :courses, :short_name
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add_index :courses, :short_name, :unique => true
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end
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end
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