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13 lines
604 B
13 lines
604 B
5 years ago
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class AddVideoToCourseModule < ActiveRecord::Migration[5.2]
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def change
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Course.all.each do |course|
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unless course.course_modules.exists?(module_type: "video")
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atta_position = course.course_modules.find_by(module_type: 'attachment')&.position.to_i
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video_position = atta_position != 0 ? (atta_position + 1) : 11
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course.course_modules.where("position >= #{video_position}").update_all("position = position + 1")
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course.course_modules << CourseModule.new(module_type: "video", hidden: 1, module_name: "视频", position: video_position)
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end
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end
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end
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end
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