默认URL未在Rails中加载Carrierwave [英] Default URL not loading with Carrierwave in Rails
问题描述
我在载波上传器中设置默认图像时遇到问题。它似乎是将一个奇怪的类附加到URL的前面但不渲染图像。请参阅下面的代码。
I'm having issues setting a default image in my carrierwave uploader. It seems to be appending a weird class to the front of the URL but not rendering the image. See my code below.
助手
# encoding: utf-8
class UserpicUploader < CarrierWave::Uploader::Base
CarrierWave::SanitizedFile.sanitize_regexp = /[^[:word:]\.\-\+]/
# Include RMagick or MiniMagick support:
include CarrierWave::RMagick
# include CarrierWave::MiniMagick
# Include the Sprokets helpers for Rails 3.1+ asset pipeline compatibility:
# include Sprockets::Helpers::RailsHelper
# include Sprockets::Helpers::IsolatedHelper
# 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
# Process files as they are uploaded:
version :normal do
process :resize_to_fill => [162, 163]
end
# Provide a default URL as a default if there hasn't been a file uploaded:
def default_url
# For Rails 3.1+ asset pipeline compatibility:
# asset_path("fallback/" + [normal, "profile_default_pic.png"].compact.join('_'))
"/images/fallback/" + [normal, "profile_default_pic.png"].compact.join('_')
end
#
# def scale(width, height)
# # do something
# end
# Create different versions of your uploaded files:
# version :thumb do
# process :scale => [50, 50]
# end
# Add a white list of extensions which are allowed to be uploaded.
# For images you might use something like this:
def extension_white_list
%w(jpg jpeg gif png)
end
# Override the filename of the uploaded files:
# Avoid using model.id or version_name here, see uploader/store.rb for details.
def filename
if original_filename
@name ||= Digest::MD5.hexdigest(File.dirname(current_path))
"#{@name}.#{file.extension}"
end
end
end
编辑...
这是编辑后的代码。我不得不将图像放在公共/后备而不是资产/图像/后备。
Here is the edited code that worked. I had to put the image in public/fallback instead of Assets/images/fallback.
# encoding: utf-8
class UserpicUploader < CarrierWave::Uploader::Base
CarrierWave::SanitizedFile.sanitize_regexp = /[^[:word:]\.\-\+]/
# Include RMagick or MiniMagick support:
include CarrierWave::RMagick
# include CarrierWave::MiniMagick
# Include the Sprokets helpers for Rails 3.1+ asset pipeline compatibility:
include Sprockets::Helpers::RailsHelper
include Sprockets::Helpers::IsolatedHelper
# 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
# Process files as they are uploaded:
version :normal do
process :resize_to_fill => [162, 163]
end
# Provide a default URL as a default if there hasn't been a file uploaded:
def default_url
# For Rails 3.1+ asset pipeline compatibility:
asset_path("fallback/" + [normal, "profile_default_pic.png"].compact.join('_'))
# "/fallback/" + [normal, "profile_default_pic.png"].compact.join('_')
end
#
# def scale(width, height)
# # do something
# end
# Create different versions of your uploaded files:
# version :thumb do
# process :scale => [50, 50]
# end
# Add a white list of extensions which are allowed to be uploaded.
# For images you might use something like this:
def extension_white_list
%w(jpg jpeg gif png)
end
# Override the filename of the uploaded files:
# Avoid using model.id or version_name here, see uploader/store.rb for details.
def filename
if original_filename
@name ||= Digest::MD5.hexdigest(File.dirname(current_path))
"#{@name}.#{file.extension}"
end
end
end
推荐答案
好的我工作了这就是我所缺少的......
Ok I got it working this is what I was missing...
- 默认文件夹
-
我必须将以下行添加到上传者类:
- The default folder had to be in the public/ folder not in assets/images
I had to add the following lines to the uploader class:
包括Sprockets :: Helpers :: RailsHelper
包括Sprockets :: Helpers :: IsolatedHelper
我必须将default_url更改为以下内容:
I had to change the default_url to the following:
asset_path(fallback / + [normal,profile_default_pic.png]。compact.join('_'))
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