Adjust send_email field to multiple options.

app/models/ask_question.rb

@@ -20,8 +20,8 @@ class AskQuestion
 
   field :reply, type: String
   field :comment, type: String
-  field :send_email, type: Boolean, default: false
   field :situation, type: String, default: "is_email_not_confirmed" # 預設email未驗證
+  field :send_email, type: Integer, default: 0
   field :email_id
   field :verify_email_id
   field :custom_values, type: Hash, default: {}
@@ -75,5 +75,9 @@ class AskQuestion
   def display_format_string(num, str_length)
     format("%0#{str_length}d", num)
   end
+
+  def send_email?
+    self.send_email == 1
+  end
   end
 end