From ac3d87cf93e1500d47135049092621cebe485370 Mon Sep 17 00:00:00 2001
From: daiao <358551898@qq.com>
Date: Thu, 26 Dec 2019 17:26:51 +0800
Subject: [PATCH] =?UTF-8?q?=E8=BF=81=E7=A7=BB=E5=85=AC=E5=BC=8F?=
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---
 .../20191226092304_modify_task_pass_2_for_challenges.rb   | 8 ++++++++
 1 file changed, 8 insertions(+)
 create mode 100644 db/migrate/20191226092304_modify_task_pass_2_for_challenges.rb

diff --git a/db/migrate/20191226092304_modify_task_pass_2_for_challenges.rb b/db/migrate/20191226092304_modify_task_pass_2_for_challenges.rb
new file mode 100644
index 000000000..f03039aa2
--- /dev/null
+++ b/db/migrate/20191226092304_modify_task_pass_2_for_challenges.rb
@@ -0,0 +1,8 @@
+class ModifyTaskPass2ForChallenges < ActiveRecord::Migration[5.2]
+  def change
+    challenges = Challenge.where("task_pass like '%frac%'")
+    challenges.find_each do |c|
+      c.update_column(:task_pass, c.task_pass.gsub('\f\frac', '\frac'))
+    end
+  end
+end