diff --git a/config/initializers/string_extension.rb b/config/initializers/string_extension.rb
index 2c307d6..2b3784d 100644
--- a/config/initializers/string_extension.rb
+++ b/config/initializers/string_extension.rb
@@ -1,6 +1,18 @@
 # frozen_string_literal: true
 
 class String
+  def to_escaped_for_sql_like
+    gsub(/%|_|\*|\\\*|\\\\|\\/) do |str|
+      case str
+      when "%"    then '\%'
+      when "_"    then '\_'
+      when "*"    then "%"
+      when '\*'   then "*"
+      when "\\\\", "\\" then "\\\\"
+      end
+    end
+  end
+
   def truthy?
     match?(/\A(true|t|yes|y|on|1)\z/i)
   end