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12 lines
316 B
12 lines
316 B
5 years ago
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class MigrateCourseGroupPosition < ActiveRecord::Migration[5.2]
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def change
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Course.all.each do |course|
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if course.course_groups.exists?(position: 0)
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course.course_groups.each_with_index do |group, index|
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group.update_attributes(position: index+1)
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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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