使用 Carrierwave，我想根据上传的照片类型将照片调整为不同的尺寸

Question

我有一个用户模型和一个帖子模型。用户的照片将被调整为小缩略图，帖子的照片将被调整为大缩略图。

version :smallThumb do
     process :resize_to_fill => [100, 100]
   end

   version :largeThumb do
     process :resize_to_fill => [200, 200]
   end

如何告诉 Carrierwave 为上传的照片选择哪种尺寸？对于所有上传，它都会调整为小和大吗？

Answer 1

您可以创建 2 个单独的上传器模型。看起来像这样：

profile_uploader.rb

class ProfileUploader < CarrierWave::Uploader::Base

  include CarrierWave::RMagick

  storage :file

  version :thumb do
    process :resize_to_fill => [200, 200]
  end

end

atached_uploader.rb

class AttachedUploader < CarrierWave::Uploader::Base

  include CarrierWave::RMagick

  storage :file

  version :thumb do
    process :resize_to_fill => [100, 100]
  end

end

user.rb

class User < ActiveRecord::Base

  mount_uploader :profile, ProfileUploader

end

post.rb

class Post < ActiveRecord::Base

  mount_uploader :attached, AttachedUploader

end