我有以下文件上传器
class ItemImageUploader < CarrierWave::Uploader::Base
include ::CarrierWave::Backgrounder::Delay
include CarrierWave::MiniMagick
include Sprockets::Helpers::RailsHelper
include Sprockets::Helpers::IsolatedHelper
def store_dir
"uploads/#{model.class.to_s.underscore}/#{mounted_as}/#{model.id}"
end
# Provide a default URL as a default if there hasn't been a file uploaded:
def default_url
asset_path("fallback/" + [version_name, "image.png"].compact.join('_'))
end
def cache_dir
"uploads/tmp"
end
# Create different versions of your uploaded files:
version :thumb do
process :resize_to_fill => [80,80]
end
def extension_white_list
%w(jpg jpeg gif png)
end
图片类
class Picture < ActiveRecord::Base
belongs_to :imageable, :polymorphic => true
mount_uploader :image, ItemImageUploader
process_in_background :image
validates_presence_of :image
def copy
Picture.new(:image => self.image)
end
以下配置在carrier_wave.rb初始化文件中:
CarrierWave.configure do |config|
config.enable_processing = true
#config.permissions = 0666
#config.directory_permissions = 0777
config.storage = :file
end
图片已正确上传,但未创建缩略图,未发生任何错误。请指教。
答案 0 :(得分:3)
我自己就碰到了这个。正如评论所示,使用carrierwave_backgrounder
会导致此问题。您可以在documentation:
process_in_background - This stores the original file with no processing/versioning.
无法解决问题,但我认为我会验证问题。
答案 1 :(得分:0)
今天我挣扎了几个小时,因为我遇到了同样的问题。上传原始版本可行,但未调整大小。它在本地工作,但不在我的生产机器上。希望有同样问题的人会在这个问题上遇到麻烦,并节省一些时间。
原来我的ImageMagick版本没有使用正确的委托构建,这是$ convert -version
的输出:
Version: ImageMagick 6.9.1-10 Q16 x86_64 2015-08-01 http://www.imagemagick.org
Copyright: Copyright (C) 1999-2015 ImageMagick Studio LLC
License: http://www.imagemagick.org/script/license.php
Features: Cipher DPC OpenMP
Delegates (built-in): zlib
我使用这个答案来安装代理并构建一个新版本的ImageMagick:ImageMagick missing decode delegates
之后,使用$ convert -version
:
Version: ImageMagick 6.9.1-10 Q16 x86_64 2015-08-01 http://www.imagemagick.org
Copyright: Copyright (C) 1999-2015 ImageMagick Studio LLC
License: http://www.imagemagick.org/script/license.php
Features: Cipher DPC OpenMP
Delegates (built-in): bzlib djvu fontconfig freetype gvc jbig jng jpeg lcms lqr lzma openexr png tiff wmf x xml zlib
现在我来罗林&#39;!