我正在尝试使用带有载波的 mini magick gem 裁剪图像。创建用户时遇到以下问题。
Errno::ENOENT in UsersController#create
No such file or directory - identify -ping /tmp/mini_magick20120919-5600-ai31ph.jpg
我的代码：模型/user.rb
class User < ActiveRecord::Base
attr_accessor :crop_x, :crop_y, :crop_h, :crop_w
attr_accessible :username,:profile
after_update :reprocess_profile, :if => :cropping?
#field :username
mount_uploader :profile, ProfileUploader
def cropping?
!crop_x.blank? and !crop_y.blank? and !crop_h.blank? and !crop_w.blank?
end
def profile_geometry
#img = MiniMagick::Image.open(self.profile.large.path)
#@geometry = {:width => img[:width], :height => img[:height] }
end
private
def reprocess_profile
#puts self.profile.large.path
#img = MiniMagick::Image.open(self.profile.large.path)
#crop_params = "#{crop_w}x#{crop_h}+#{crop_x}+#{crop_y}"
#img.crop(crop_params)
#img.write(self.profile.path)
#profile.recreate_versions!
end
end
上传者/profile_uploader.rb
# encoding: utf-8
class ProfileUploader < CarrierWave::Uploader::Base
# Include RMagick or ImageScience support:
#include CarrierWave::RMagick
# include CarrierWave::ImageScience
include CarrierWave::MiniMagick
# Choose what kind of storage to use for this uploader:
storage :file
# storage :fog
# 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
def extension_white_list
%w(jpg jpeg gif png)
end
version :large do
end
version :thumb do
process :resize_to_fill => [100, 100]
end
end
会有什么问题？请提出任何解决方案。