在Rails中创建新模型时,是否有一种在所有参数上都使用strip的干燥方法?

我有一个创建新联系人模型的表单。

我通过剪切和粘贴手动输入值。

有时我会在左右两侧添加空白。

这里是创建控制器中的内容(我有一个循环,检查我是否上传了一个vCard,很明显,它通常不会出现问题(尽管它可以),但我的大问题是当我自己键入它时。

 def create

    @contact = Contact.create(params[:contact])

     unless @contact.vcard.path.blank?

           paperclip_vcard = File.new(@contact.vcard.path) 

       @vcard = Vpim::Vcard.decode(paperclip_vcard).first
       @contact.title = @vcard.title
       @contact.email = @vcard.email
       @contact.first_name = @vcard.name.given
       @contact.last_name = @vcard.name.family
       @contact.phone = @vcard.telephone
       @contact.address.street1 = @vcard.address.street
       @contact.address.city = @vcard.address.locality
       @contact.address.state = @vcard.address.region
       @contact.address.zip = @vcard.address.postalcode
       @contact.company_name = @vcard.org.fetch(0)

    end

    @contact.user_id = current_user.id # makes sure every new user is assigned an ID    
    if @contact.save
      #check if need to update company with contact info
      @contact.update_company

      @contact.new_todos #create the todos for the newly created contact

      flash[:notice] = "Successfully created contact."
      redirect_to @contact
    else
      render :action => 'new'
    end
  end