Question

我在Rails 4中使用Carrierwave而没有将其安装到特定型号并尝试通过initialize方法传递我的属性，以便store_dir可以知道存储文件的位置。

class CustomFormUploader < CarrierWave::Uploader::Base
  include CarrierWave::MiniMagick

  attr_reader :custom_form

  def initialize(custom_form)
    @custom_form = custom_form
  end

  def store_dir
   "uploads/custom_form/#{custom_form.id}/"
  end

  version :thumb do
    process :resize_to_fill => [64, 64]
  end
end

当我运行该测试时：

let(:uploader) { CustomFormUploader.new(custom_form) }

before do
  CustomFormUploader.enable_processing = true
  uploader.store!(File.open(File.join(Rails.root, '/spec/fixtures/passport.jpg')))
end

context 'the thumb version' do
  it 'should scale down an image to be exactly 64 by 64 pixels' do
    uploader.thumb.should have_dimensions(64, 64)
  end
end

然后从初始化

获得错误

 ArgumentError: wrong number of arguments (2 for 1)

知道如何在不出错的情况下将属性传递给上传器吗？

Answer 1

在controller.rb

中

<style name="NgTheme" parent="@android:style/Theme.Holo.Light">
    <item name="android:dialogTheme">@style/NgDialogTheme</item>
    <item name="android:alertDialogTheme">@style/NgAlertDialogTheme</item>
</style>

<style name="NgDialogTheme" parent="@android:style/Theme.Holo.Light.Dialog">
    <item name="android:background">@android:color/transparent</item>
    <item name="android:windowTitleStyle">@style/NgWindowTitleStyle</item>
</style>

<style name="NgAlertDialogTheme" parent="@style/NgDialogTheme">
</style>

<style name="NgWindowTitleStyle" parent="android:TextAppearance.Holo.DialogWindowTitle">
    <item name="android:background">#318d99</item>
    <item name="android:textColor">#fff</item>
</style>

在my_uploader.rb

中

uploader = MyUploader.new(special_var)
uploader.store!(params[:icon])

在没有ORM的情况下将属性传递给Carrierwave上传器

1 个答案: