16 lines
461 B
Ruby
16 lines
461 B
Ruby
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class AddCourseIdToSwp < ActiveRecord::Migration
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def change
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add_column :student_work_projects, :course_id, :integer
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count = StudentWorkProject.all.count / 30 + 2
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transaction do
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for i in 1 ... count do i
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StudentWorkProject.page(i).per(30).each do |swp|
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if swp.homework_common && swp.homework_common.course
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swp.update_column("course_id", swp.homework_common.course_id)
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end
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end
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end
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end
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end
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end
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