迁移问题

db/migrate/20190805010549_modify_ke_contents_for_markdown.rb

@@ -1,48 +0,0 @@
-class ModifyKeContentsForMarkdown < ActiveRecord::Migration[5.2]
-  include ActionView::Helpers::SanitizeHelper
-  def change
-    def ke_transform_to_md content
-      return content if content.blank?
-      s_contents = sanitize(content, tags: %w(img a span table td tr tbody pre), attributes: %w(src href target style))
-      s_contents.gsub(">\n<", "><").gsub(/^\n/, "").gsub("    ", "").gsub(/(\n)+/, "<br />")
-          .gsub("\t", "  ").gsub("\n", "").gsub("    ", "  ").gsub(/(<br\s?\/?>)+/, "<br />")
-    end
-
-    # 课程讨论区
-    MessageDetail.find_each do |m|
-      content = ke_transform_to_md m.content
-      m.update_column(:content, content)
-    end
-
-    # 试卷的标题
-    ExerciseQuestion.find_each do |eq|
-      question_title = ke_transform_to_md eq.question_title
-      eq.update_column(:question_title, question_title)
-    end
-
-    # 试卷的答案
-    ExerciseStandardAnswer.find_each do |esa|
-      answer_text = ke_transform_to_md esa.answer_text
-      esa.update_column(:answer_text, answer_text)
-    end
-
-    # 试卷题库的问题标题
-    ExerciseBankQuestion.find_each do |ebq|
-      question_title = ke_transform_to_md ebq.question_title
-      ebq.update_column(:question_title, question_title)
-    end
-
-    # 试卷答案
-    ExerciseBankStandardAnswer.find_each do |ebsa|
-      answer_text = ke_transform_to_md ebsa.answer_text
-      ebsa.update_column(:answer_text, answer_text)
-    end
-
-    # 问卷的标题
-    PollQuestion.find_each do |pq|
-      question_title = ke_transform_to_md pq.question_title
-      pq.update_column(:question_title, question_title)
-    end
-
-  end
-end

db/migrate/20190805010550_modify_ke_contents_for_markdown.rb

@@ -0,0 +1,48 @@
+class ModifyKeContentsForMarkdown < ActiveRecord::Migration[5.2]
+  include ActionView::Helpers::SanitizeHelper
+  def change
+    def ke_transform_to_md content
+      return content if content.blank?
+      s_contents = sanitize(content, tags: %w(img a span table td tr tbody pre), attributes: %w(src href target style))
+      s_contents.gsub(">\n<", "><").gsub(/^\n/, "").gsub(" ", "&nbsp;").gsub(/(\n)+/, "<br />")
+          .gsub("\t", "&nbsp;&nbsp;&nbsp;&nbsp;").gsub("\n", "").gsub(" ", "&nbsp;").gsub(/(<br\s?\/?>)+/, "<br />")
+    end
+    #
+    # # 课程讨论区
+    # MessageDetail.find_each do |m|
+    #   content = ke_transform_to_md m.content
+    #   m.update_column(:content, content)
+    # end
+
+    # 试卷的标题
+    ExerciseQuestion.find_each do |eq|
+      question_title = ke_transform_to_md eq.question_title
+      eq.update_column(:question_title, question_title)
+    end
+
+    # # 试卷的答案
+    # ExerciseStandardAnswer.find_each do |esa|
+    #   answer_text = ke_transform_to_md esa.answer_text
+    #   esa.update_column(:answer_text, answer_text)
+    # end
+    #
+    # # 试卷题库的问题标题
+    # ExerciseBankQuestion.find_each do |ebq|
+    #   question_title = ke_transform_to_md ebq.question_title
+    #   ebq.update_column(:question_title, question_title)
+    # end
+    #
+    # # 试卷答案
+    # ExerciseBankStandardAnswer.find_each do |ebsa|
+    #   answer_text = ke_transform_to_md ebsa.answer_text
+    #   ebsa.update_column(:answer_text, answer_text)
+    # end
+
+    # # 问卷的标题
+    # PollQuestion.find_each do |pq|
+    #   question_title = ke_transform_to_md pq.question_title
+    #   pq.update_column(:question_title, question_title)
+    # end
+
+  end
+end

db/migrate/20190806062209_second_mofidy_ke_contents_for_md.rb

@@ -4,8 +4,8 @@ class SecondMofidyKeContentsForMd < ActiveRecord::Migration[5.2]
     def ke_transform_to_md content
       return content if content.blank?
       s_contents = sanitize(content, tags: %w(img a span table td tr tbody pre), attributes: %w(src href target style))
-      s_contents.gsub(">\n<", "><").gsub(/^\n/, "").gsub("    ", "").gsub(/(\n)+/, "<br />")
-          .gsub("\t", "  ").gsub("\n", "").gsub("    ", "  ").gsub(/(<br\s?\/?>)+/, "<br />")
+      s_contents.gsub(">\n<", "><").gsub(/^\n/, "").gsub(" ", "&nbsp;").gsub(/(\n)+/, "<br />")
+          .gsub("\t", "&nbsp;&nbsp;&nbsp;&nbsp;").gsub("\n", "").gsub(" ", "&nbsp;").gsub(/(<br\s?\/?>)+/, "<br />")
 
     end
 

db/migrate/20190806063903_third_modify_ke_for_student_work.rb

@@ -4,8 +4,8 @@ class ThirdModifyKeForStudentWork < ActiveRecord::Migration[5.2]
     def ke_transform_to_md content
       return content if content.blank?
       s_contents = sanitize(content, tags: %w(img a span table td tr tbody pre), attributes: %w(src href target style))
-      s_contents.gsub(">\n<", "><").gsub(/^\n/, "").gsub(" ", "").gsub(/(\n)+/, "<br />")
-          .gsub("\t", "  ").gsub("\n", "").gsub("    ", "  ").gsub(/(<br\s?\/?>)+/, "<br />")
+      s_contents.gsub(">\n<", "><").gsub(/^\n/, "").gsub(" ", "&nbsp;").gsub(/(\n)+/, "<br />")
+          .gsub("\t", "&nbsp;&nbsp;&nbsp;&nbsp;").gsub("\n", "").gsub(" ", "&nbsp;").gsub(/(<br\s?\/?>)+/, "<br />")
     end
 
     # 学生的作品 过滤掉一些描述的ke图片的作品