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class ModifyKeContentsForMarkdown < ActiveRecord::Migration[5.2]
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include ActionView::Helpers::SanitizeHelper
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def change
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# def ke_transform_to_md content
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# return content if content.blank?
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# s_contents = sanitize(content, tags: %w(img a table td tr tbody pre), attributes: %w(src href target style))
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# s_contents.gsub(">\n<", "><").gsub(/^\n/, "").gsub(" ", "").gsub(/(\n)+/, "<br />")
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# .gsub("\t", "").gsub("\n", "").gsub(" ", " ").gsub(/(<br\s?\/?>)+/, "<br />")
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# s_contents.gsub("\n", "<br />").gsub(/(<br\s?\/?>)+/, "<br />")
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# end
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#
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# # 课程讨论区
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# MessageDetail.find_each do |m|
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# content = ke_transform_to_md m.content
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# m.update_column(:content, content)
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# end
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#试卷的标题
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# ExerciseQuestion.where(:exercise_id => 1892).find_each do |eq|
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# puts("#eq.question_title: #{eq.question_title}")
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# question_title = ke_transform_to_md eq.question_title
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# puts("#question_title: #{question_title}")
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# eq.update_column(:question_title, question_title)
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# end
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# # 试卷的答案
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# ExerciseStandardAnswer.find_each do |esa|
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# answer_text = ke_transform_to_md esa.answer_text
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# esa.update_column(:answer_text, answer_text)
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# end
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#
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# 试卷题库的问题标题
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# ExerciseBankQuestion.find_each do |ebq|
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# question_title = ke_transform_to_md ebq.question_title
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# ebq.update_column(:question_title, question_title)
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# end
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#
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# # 试卷答案
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# ExerciseBankStandardAnswer.find_each do |ebsa|
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# answer_text = ke_transform_to_md ebsa.answer_text
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# ebsa.update_column(:answer_text, answer_text)
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# end
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# # 问卷的标题
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# PollQuestion.find_each do |pq|
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# question_title = ke_transform_to_md pq.question_title
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# pq.update_column(:question_title, question_title)
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# end
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end
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end
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