Question

我正在尝试使用carrierwave（雾）为我的图像上传器创建新版本，我试图做一个条件版本来检查是否gif摆脱动画并转换为jpg但由于某种原因它没有虽然调试在这方面有点难度，但是不行。

这是我的代码

class SourceImageUploader < CarrierWave::Uploader::Base

  # Include RMagick or MiniMagick support:
  include CarrierWave::MiniMagick
  include CarrierWave::MimeTypes
  include CarrierWave::MimetypeFu

  # Choose what kind of storage to use for this uploader:
  storage :fog

  process :set_content_type

  # Override the directory where uploaded files will be stored.
  # This is a sensible default for uploaders that are meant to be mounted:
  def store_dir
    "uploads/#{model.class.to_s.underscore}/#{mounted_as}/#{model.id}"
  end

  version :big_thumb do
    process :resize_to_fit => [600, 99999]
  end

  version :small_thumb do
    process :resize_to_fit => [200, 99999]
  end

  version :first_frame do
    process :remove_animation
  end

  def filename
    "#{secure_token}.#{file.extension}" if original_filename.present?
  end

  protected

  def secure_token
    var = :"@#{mounted_as}_secure_token"
    model.instance_variable_get(var) or model.instance_variable_set(var, SecureRandom.hex(2))
  end

  # def is_gif?(new_file)
  #    new_file.content_type.include? 'gif' rescue false
  # end 

  def remove_animation
    if content_type == 'image/gif'
      manipulate! { |image| image.collapse! }
    end
  end

我试图用户is_gif？方法作为条件版本条件，但它不起作用。

有什么建议吗？

干杯！

如何将gif转换为jpg“第一帧”并使用carrierwave上传它

0 个答案: