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8 lines
321 B
8 lines
321 B
class AddStatisticsToCourseModule < ActiveRecord::Migration[5.2]
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def change
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Course.includes(:course_modules).all.each do |course|
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CourseModule.create!(course_id: course.id, module_type: "statistics", hidden:0, module_name: "统计", position: course.course_modules.pluck(:position).max + 1)
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end
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end
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end
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