Rails active_storage集成阿里云oss

[wuyuedefeng]

• 集成active_storage

  $ rails active_storage:install

  in model

  has_one_attached :image  ## 一对一关系 或
  has_many_attached :images  ## 一对多关系

默认storage以文件的形式存在服务器中

• 更改storage存储方式到阿里云 gemfile添加 gemactivestorage-aliyun

  # Aliyun 文件存储
  gem 'activestorage-aliyun'

  修改config/storage.yml文件配置：

  
  test:
  service: Disk
  root: <%= Rails.root.join("tmp/storage") %>

local: service: Disk root: <%= Rails.root.join("storage") %>

aliyun: service: Aliyun access_key_id: "LTAIwdxxxxxxxx" access_key_secret: "juYPTswGjxxxxxxxxxxxxxxx" bucket: "xxxx" endpoint: "https://oss-cn-hangzhou.aliyuncs.com"

path prefix, default: /

path: "moon"

Bucket mode: [public, private], default: public

mode: "public"

配置`production`环境使用阿里云存储, 需修改环境配置文件`config/enviroments/production.rb`
```ruby
 # config.active_storage.service = :local
 config.active_storage.service = :aliyun

• 创建上传 controller action rails g controller uploader file

  class UploaderController < ApplicationController
  def file
  blob = ActiveStorage::Blob.create_after_upload!(
      io: params[:file].tempfile,
      filename: params[:file].original_filename,
      content_type: params[:file].content_type
  )
  # 本地存储
  if ActiveStorage::Blob.service.send(:service_name) === 'Disk'
    render json: { link: url_for(blob), signed_id: blob.signed_id }, status: 200
  else # Aliyun
    render json: { link: blob.service_url, signed_id: blob.signed_id }, status: 200
  end
  end
  end

  config/router.rb添加路由配置

  post 'uploader/file', to: 'uploader#file'

---

• has_one_attached

eg: model feedback.rb

class Feedback < ApplicationLogsRecord
  # belongs_to :trackable, polymorphic: true, optional: true
  # belongs_to :actorable, polymorphic: true, optional: true
  # belongs_to :application, class_name: 'Doorkeeper::Application'
  has_one_attached :image
end

usage, eg:

Feedback.create.attach(params[:signed_id])

• has_many_attached

eg: model feedback.rb

class Feedback < ApplicationLogsRecord
  # belongs_to :trackable, polymorphic: true, optional: true
  # belongs_to :actorable, polymorphic: true, optional: true
  # belongs_to :application, class_name: 'Doorkeeper::Application'
  has_many_attached :images
end

usage, eg:

Feedback.create(images: params[:signed_ids])

[wuyuedefeng]

gem reform更新attachment

app/forms/reform_base.rb

class ReformBase < Reform::Form
  # https://edgeguides.rubyonrails.org/active_storage_overview.html
  def attach_file property
    if self.try(property).present?
      self.model.try(property).attach self.try(property)
    elsif self.model.try(property).try(:attached?)
      self.model.try(property).purge_later
    end
    true
  end
end

has_one_attached :image

app/forms/api/banner_form/create.rb

module BannerForm
  class Create < ReformBase
    model :banner

    property :image, virtual: true # signed_blob_id
    validates :image, presence: true

    def save
      attach_file :image if super
    end

  end
end

app/forms/api/banner_form/update.rb

module BannerForm
  class Update < ReformBase
    model :banner

    property :image, virtual: true # signed_blob_id
    validates :image, presence: true

    def save
      attach_file :image if super
    end

  end
end

has_many_attached :images

module Api::FeedbackForm
  class Create < ReformBase
    model :feedback

    property :images # 直接将signed_ids数组赋值给images即可，更新也是一样
  end
end