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11 lines
445 B
11 lines
445 B
5 years ago
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class AddAnnouncementToCourseModules < 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: "announcement")
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course.course_modules.where.not(module_type: "activity").update_all("position = position + 1")
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course.course_modules << CourseModule.new(module_type: "announcement", hidden: 1, module_name: "公告栏", position: 2)
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end
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end
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end
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end
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