Question

在rails 4应用程序中，我正在尝试将默认选项传递给text_field帮助程序，但似乎不知道如何实现它。

到目前为止，我认为：

<%= new_text_field :name, class: "", placeholder: "" %>

和我的application_helper.rb

def new_text_field(object_name, method, options = {})
   text_field(object_name, method, options = {}) # Trying to pass in a default class here, for example ".bigger"
end

Answer 1

这样的事情应该有效：

def new_text_field_tag(name, value=nil, options)
  your_class = "bigger"

  if options.has_key?(:class)
    options[:class] += " #{your_class}"
  else
    options[:class] = your_class
  end

  text_field_tag(name, value, options)
end

Answer 2

试试这个：

def new_text_field(object_name, method = nil, options = {})
  options[:class] ||= 'bigger' # this will set bigger as default value if "class" option isn't passed
  text_field(object_name, method, options = {})
end

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2 个答案: