[英]Rails 5.2 (Upgrade) - Active Storage does not display image
所以我已经从Rails 5.1升级到5.2
rails app:update
一切正常,我立即设置了活动存储配置,以供Web应用程序中的新部分使用。
我创建了迁移:
rails active_storage:install
rake db:migrate
我配置了conf / storage.yml-使用AWS S3进行生产:
测试:服务:磁盘根:<%= Rails.root.join(“ tmp / storage”)%>
本地:服务:磁盘根:<%= Rails.root.join(“存储”)%>
亚马逊:服务:S3 access_key_id:<%= Rails.application.credentials.dig(:aws,:access_key_id)%> secret_access_key:<%= Rails.application.credentials.dig(:aws,:secret_access_key)%>地区:欧盟-west-2桶:随便
将所需的GEM添加到GEMFILE中:
gem 'aws-sdk-s3'
确保开发环境使用本地设置:
config.active_storage.service = :local
将所有必需的行添加到模型:
class Article < ApplicationRecord
has_one_attached :main_picture
...
end
我做了一些花哨的东西,例如验证,自定义变体等,但是出于测试目的和使基础知识正常工作,我注释掉了所有这些东西。
更新控制器以使用Pundit中指定的允许属性:
控制者
@article.update(permitted_attributes(@article))
权威
class ArticlePolicy < ApplicationPolicy
...
def permitted_attributes
if !user.nil? && user.admin
[:title, :content, :teaser, :slug, :published, :user_id, :main_picture]
end
end
...
end
现在,上传变得轻而易举-到我的本地环境,我什至测试了将其上传到AWS的性能,但让我们坚持使用本地环境。 我可以在以下位置找到有关本地环境的最新上传:
/storage/N1/Ay/N1AyNaBeMNGhhmPSR69XwA9a
当我尝试在视图中显示图像时,这就是URL:
http://localhost:3000/rails/active_storage/blobs/eyJfcmFpbHMiOnsibWVzc2FnZSI6IkJBaHBQQT09IiwiZXhwIjpudWxsLCJwdXIiOiJibG9iX2lkIn19--fd200a456532a80dfb122b2bdd9a53181b2a62aa/428KB.jpg
在active_storage_blob表中看起来像这样:
id,key,filename,content_type,metadata,byte_size,checksum,created_at
"55","N1AyNaBeMNGhhmPSR69XwA9a","428KB.jpg","image/jpeg","{""identified"":true,""width"":1920,""height"":1080,""analyzed"":true}","428299","48c8G3xQj5ENGgqqM08seQ==","2018-07-24 15:21:11"
这是我尝试显示图像的各种方法:
= image_tag @article.main_picture
= image_tag url_for(@article.main_picture)
= image_tag @article.main_picture.variant(resize_to_fit: [100, 100]
这些选项都不显示成功上载并存储在数据库中的图像。 我所得到的只是图像占位符。
对于最新的工作(但没有),我在GEMFILE中添加了以下内容(按照指南 ):
gem 'image_processing', '~> 1.2'
对此有类似的威胁抱怨-使用Rails 5.1并在Gemfile中添加active_storage-但没有真正的答案。 根据建议,我尝试添加:
config / application.rb
require 'active_storage/engine'
没有帮助显示图像:(
---更新:访问URL时请求的日志-
Started GET "/rails/active_storage/blobs/eyJfcmFpbHMiOnsibWVzc2FnZSI6IkJBaHBQQT09IiwiZXhwIjpudWxsLCJwdXIiOiJibG9iX2lkIn19--fd200a456532a80dfb122b2bdd9a53181b2a62aa/428KB.jpg" for 127.0.0.1 at 2018-07-25 12:41:36 +0100
Processing by ActiveStorage::BlobsController#show as JPEG
Parameters: {"signed_id"=>"eyjfcmfpbhmionsibwvzc2fnzsi6ikjbahbqqt09iiwizxhwijpudwxslcjwdxiioijibg9ix2lkin19--fd200a456532a80dfb122b2bdd9a53181b2a62aa", "filename"=>"428kb"}
** [Localeapp] 1532518896 - Handling translation updates
** [Localeapp] 1532518896 - polling
** [Localeapp] API CALL: get https://api.localeapp.com/v1/projects/qXa7rByH1jQ9cNrU8t46zQkk8rkq3fMka13EACmQkXZ5FFTuUn/translations.yml?updated_at=1532518849
** [Localeapp] ATTEMPT 1
** [Localeapp] RESPONSE: 200
** [Localeapp] CALLING SUCCESS HANDLER: handle_success
** [Localeapp] 1532518897 - poll success
** [Localeapp] 1532518897 - reloading I18n
Filter chain halted as :set_blob rendered or redirected
Completed 404 Not Found in 917ms (ActiveRecord: 0.0ms)
Started GET "/rails/active_storage/blobs/eyJfcmFpbHMiOnsibWVzc2FnZSI6IkJBaHBQQT09IiwiZXhwIjpudWxsLCJwdXIiOiJibG9iX2lkIn19--fd200a456532a80dfb122b2bdd9a53181b2a62aa/428KB.jpg?disposition=attachment" for 127.0.0.1 at 2018-07-25 12:41:39 +0100
Processing by ActiveStorage::BlobsController#show as JPEG
Parameters: {"disposition"=>"attachment", "signed_id"=>"eyjfcmfpbhmionsibwvzc2fnzsi6ikjbahbqqt09iiwizxhwijpudwxslcjwdxiioijibg9ix2lkin19--fd200a456532a80dfb122b2bdd9a53181b2a62aa", "filename"=>"428kb"}
** [Localeapp] 1532518899 - Handling translation updates
** [Localeapp] 1532518899 - polling
** [Localeapp] API CALL: get https://api.localeapp.com/v1/projects/qXa7rByH1jQ9cNrU8t46zQkk8rkq3fMka13EACmQkXZ5FFTuUn/translations.yml?updated_at=1532518897
** [Localeapp] ATTEMPT 1
** [Localeapp] RESPONSE: 200
** [Localeapp] CALLING SUCCESS HANDLER: handle_success
** [Localeapp] 1532518900 - poll success
** [Localeapp] 1532518900 - reloading I18n
Filter chain halted as :set_blob rendered or redirected
Completed 404 Not Found in 837ms (ActiveRecord: 0.0ms)
注意:
我添加了一个图像下载按钮来生成日志:
= link_to "Download", rails_blob_path(@article.main_picture, disposition: "attachment")
您的signed_id似乎无效,这就是为什么您使“过滤器链因:set_blob呈现或重定向而暂停”的原因。
添加到响应:
该问题是由区分大小写的URL引起的。 已安装GEM“ route_downcaser”。 删除此GEM后,一切正常。
另外,“ route_downcaser”提供了exclude_patterns选项。 因此,您可以将GEM与active_storage一起使用,但请确保将以下内容添加到初始化程序中:
# config/initializers/route_downcaser.rb
RouteDowncaser.configuration do |config|
config.redirect = true
config.exclude_patterns = [
/assets\//i,
/fonts\//i,
/active_storage\//i
]
end
更多配置选项可以在这里找到:)
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