36 Active storage

Gemfile

@@ -5,10 +5,13 @@ git_source(:github) { |repo| "https://github.com/#{repo}.git" }
 
 ruby '2.5.3'
 
+gem 'activestorage-dropbox'     # service adapter for dropbox
+gem 'dropbox_api'               # dependency for the activestorage-dropbox gem
 gem 'bootsnap', '>= 1.1.0', require: false # Reduces boot times through caching; required in config/boot.rb
 gem 'coderay'                   # syntax highlighting: http://coderay.rubychan.de/
-gem 'coffee-rails'              # Use CoffeeScript for .coffee assets and views
+gem 'coffee-rails'              # Use CoffeeScripgt for .coffee assets and views
 gem 'devise'                    # User authentication
+gem 'image_processing', '~> 1.2'# Creates various sizes for ActiveStorage image files
 gem 'jbuilder', '~> 2.5'        # Build JSON APIs with ease. Read more: https://github.com/rails/jbuilder
 gem 'loofah', '>= 2.2.3'        # Upgrade for security update
 gem 'nokogiri', '>= 1.8.5'      # Upgrade for security update
@@ -21,7 +24,7 @@ gem 'sass-rails', '~> 6.0'      # Use SCSS for stylesheets
 gem 'uglifier', '>= 1.3.0'      # Use Uglifier as compressor for JavaScript assets
 gem 'will_paginate', '~> 3.2.0' # pagination. Styles: http://mislav.github.io/will_paginate/
 # gem 'redis', '~> 4.0'           # Use Redis adapter to run Action Cable in production
-# gem 'mini_magick', '~> 4.8'  # Use ActiveStorage variant
+gem 'mini_magick', '~> 4.8'  # Use ActiveStorage variant
 # gem 'capistrano-rails', group: :development # Use Capistrano for deployment
 
 group :development, :test do

Gemfile.lock

@@ -111,6 +111,8 @@ GEM
       activejob (= 6.0.2.2)
       activerecord (= 6.0.2.2)
       marcel (~> 0.3.1)
+    activestorage-dropbox (1.0.0)
+      dropbox_api (~> 0.1.16)
     activesupport (6.0.2.2)
       concurrent-ruby (~> 1.0, >= 1.0.2)
       i18n (>= 0.7, < 2)
@@ -167,6 +169,9 @@ GEM
       responders
       warden (~> 1.2.3)
     diff-lcs (1.3)
+    dropbox_api (0.1.18)
+      faraday (<= 1.0)
+      oauth2 (~> 1.1)
     equalizer (0.0.11)
     erubi (1.9.0)
     execjs (2.7.0)
@@ -175,6 +180,8 @@ GEM
     factory_bot_rails (5.1.1)
       factory_bot (~> 5.1.0)
       railties (>= 4.2.0)
+    faraday (1.0.0)
+      multipart-post (>= 1.2, < 3)
     ffi (1.12.2)
     ffi (1.12.2-java)
     ffi (1.12.2-x64-mingw32)
@@ -190,10 +197,14 @@ GEM
     i18n (1.8.2)
       concurrent-ruby (~> 1.0)
     ice_nine (0.11.2)
+    image_processing (1.11.0)
+      mini_magick (>= 4.9.5, < 5)
+      ruby-vips (>= 2.0.17, < 3)
     jaro_winkler (1.5.4)
     jaro_winkler (1.5.4-java)
     jbuilder (2.10.0)
       activesupport (>= 5.0.0)
+    jwt (2.2.1)
     launchy (2.5.0)
       addressable (~> 2.7)
     listen (3.2.1)
@@ -209,13 +220,17 @@ GEM
       mimemagic (~> 0.3.2)
     method_source (1.0.0)
     mimemagic (0.3.4)
+    mini_magick (4.10.1)
     mini_mime (1.0.2)
     mini_portile2 (2.4.0)
     minitest (5.14.0)
     msgpack (1.3.3)
     msgpack (1.3.3-java)
     msgpack (1.3.3-x64-mingw32)
     msgpack (1.3.3-x86-mingw32)
+    multi_json (1.14.1)
+    multi_xml (0.6.0)
+    multipart-post (2.1.1)
     nio4r (2.5.2)
     nio4r (2.5.2-java)
     nokogiri (1.10.9)
@@ -225,6 +240,12 @@ GEM
       mini_portile2 (~> 2.4.0)
     nokogiri (1.10.9-x86-mingw32)
       mini_portile2 (~> 2.4.0)
+    oauth2 (1.4.4)
+      faraday (>= 0.8, < 2.0)
+      jwt (>= 1.0, < 3.0)
+      multi_json (~> 1.3)
+      multi_xml (~> 0.5)
+      rack (>= 1.2, < 3)
     orm_adapter (0.5.0)
     parallel (1.19.1)
     parser (2.7.1.1)
@@ -312,6 +333,8 @@ GEM
     ruby-graphviz (1.2.5)
       rexml
     ruby-progressbar (1.10.1)
+    ruby-vips (2.0.17)
+      ffi (~> 1.9)
     ruby2ruby (2.4.4)
       ruby_parser (~> 3.1)
       sexp_processor (~> 4.6)
@@ -407,6 +430,7 @@ PLATFORMS
   x86-mswin32
 
 DEPENDENCIES
+  activestorage-dropbox
   awesome_print
   better_errors
   binding_of_caller
@@ -416,13 +440,16 @@ DEPENDENCIES
   coderay
   coffee-rails
   devise
+  dropbox_api
   factory_bot_rails
   faker!
+  image_processing (~> 1.2)
   jbuilder (~> 2.5)
   launchy
   listen (>= 3.0.5, < 3.3)
   loofah (>= 2.2.3)
   magic_frozen_string_literal
+  mini_magick (~> 4.8)
   nokogiri (>= 1.8.5)
   pg (>= 0.18, < 2.0)
   pry-rails

app/assets/stylesheets/shared.scss

@@ -8,7 +8,10 @@
   padding-top: 1rem;
 }
 
-.image { width: 100%; }
+.image {
+  max-width: 600px;
+  width: 100%;
+}
 
 .environment-banner {
   color: $white;
@@ -36,6 +39,8 @@ a { color: $link-color; }
   }
 }
 
+.file-field { color: $medium-gray; }
+
 
 // SEARCH BAR
 .search-icon {

app/controllers/posts_controller.rb

@@ -40,7 +40,7 @@ def update
   end
 
   def destroy
-    @post.destroy    
+    @post.destroy
     respond_to do |format|
       format.html { redirect_to post_type_url(id: @post.post_type.id), notice: "#{@post.date} #{@post.post_type_name} was successfully deleted." }
       format.json { head :no_content }
@@ -60,7 +60,9 @@ def post_params
                   :date,
                   :description,
                   :with_people,
+                  :image,
                   :image_url,
+                  :remove_attached_image,
                   :url,
                   category_ids: [])
   end

app/models/post.rb

@@ -4,7 +4,9 @@ class Post < ApplicationRecord
   belongs_to :post_type
   has_many :post_categories, dependent: :destroy
   has_many :categories, through: :post_categories
+  has_one_attached :image
 
+  validate :acceptable_image
   validates :date,
             :description,
             :post_type,
@@ -18,6 +20,9 @@ class Post < ApplicationRecord
   scope :by_date, -> { order(date: :desc) }
   scope :in_chronological_order, -> { order(date: :asc) }
 
+  attr_accessor :remove_attached_image
+  after_save :purge_attached_image, if: :remove_attached_image?
+
   def self.search(given_year: '', search_terms: '')
     return for_year(Report.this_year) if given_year.blank? && search_terms.blank?
 
@@ -84,11 +89,32 @@ def word_cloud
   end
 
   def format_image_url
-    self.image_url = image_url.present? ? DropboxApi.format_url(self.image_url) : ''
+    self.image_url = image_url.present? ? DropboxService.format_url(self.image_url) : ''
+  end
+
+  def acceptable_image
+    return unless image.attached?
+
+    unless image.byte_size <= 1.megabyte
+      errors.add(:image, "is too big")
+    end
+
+    acceptable_types = ['image/jpeg', 'image/png']
+    unless acceptable_types.include?(image.content_type)
+      errors.add(:image, 'must be a JPEG or PNG')
+    end
   end
 
   private
 
+  def remove_attached_image?
+    remove_attached_image == '1'
+  end
+
+  def purge_attached_image
+    image.purge_later
+  end
+
   def stripped_word(word)
     unwanted_characters = %w[: " . ( ) [ ] , … ... ? — -- & ; 0 1 2 3 4 5 6 7 8 9]
     unwanted_characters.each do |mark|

app/models/dropbox_api.rb → app/services/dropbox_service.rb

@@ -1,6 +1,6 @@
 # frozen_string_literal: true
 
-class DropboxApi
+class DropboxService
   DOMAIN = 'www.dropbox.com'
   READABLE_DOMAIN = 'dl.dropboxusercontent.com'
 

app/views/posts/_form.html.erb

@@ -31,6 +31,21 @@
     <%= form.text_field :image_url, class: 'form-control' %>
   </div>
 
+  <div class="field">
+    <%= form.label :image %>
+    <% if post.image.attached? %>
+      <p>
+        <%= image_tag(post.image.variant(resize_to_limit: [75, 75])) %><br>
+        <%= post.image.filename %>
+      </p>
+      <div class='form-check'>
+        <%= form.check_box :remove_attached_image, class: 'form-check-input' %>
+        <%= form.label 'Check to remove attached image', class: 'form-check-label' %>
+      </div>
+    <% end %>
+    <%= form.file_field :image, class: 'mt-2 file-field' %>
+  </div>
+
   <div class="field">
     <%= form.label :with_people %>
     <%= form.text_field :with_people, class: 'form-control' %>

app/views/posts/_post.html.erb

@@ -7,6 +7,7 @@
     <span class="float-right ml-2"><%= link_to 'edit', edit_post_path(post), class: button_class('btn btn-sm btn-light float-right ml-2') %></span>
   </div>
   <div class="card-body">
+    <%= image_tag(post.image, class: 'image', title: post.date) if post.image.present? %>
     <%= image_tag(post.image_url, class: 'image', title: post.date) if post.image_url.present? %>
     <% if post.with_people.present? %>
       <p class="card-title">with <%= post.with_people %>...</p>

config/credentials.yml.enc

@@ -1 +1 @@
-VIObN77Wr26ipTAcytCoTPbGsYHdP6U3Pm2pxHVZUmA3LHhgq/uXusUlX7cuA5K6EoJkAPXJymNeUawzCzXc/tEzwn6/nzpo16h97tykUI+VWCJpy73TRbQkrG2E3pjoKLKFSXMb4+rrMUjpdnerxu96ctRLG7GKG5nU2Kg1cz25QwKl/9H9K5s/KMqivkPuFz205UipSOC6aNfA5Nh8LaoWDYcTWi4Depkd9c6E+2zAVrjhDmFav2SRK+km7ll6TZ/0JH3NenW6oGjzSn9bogXgeGkZlT0xe4fxa3O8qt1ywcdoTqNL0q7Fxxuc1HJSb8P2Xc8pZFMuPOH2ET8qRx5XTJnasNXCVl3luykvZ2C30M6TnT8zjAj542R7PeDkBG6W8uEQmrkS8/OzIPvyY11vOag82fp0fZeQ--xEdSc5RB6Crd8/fg--fu+uDE5DTypwzH6xuLIZfw==
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--xweim5WjsX6R+CJt--tdCB1gNPYVJHJ9nsWybaQA==

config/environments/development.rb

@@ -31,6 +31,7 @@
 
   # Store uploaded files on the local file system (see config/storage.yml for options)
   config.active_storage.service = :local
+  # config.active_storage.service = :dropbox
 
   # Don't care if the mailer can't send.
   config.action_mailer.raise_delivery_errors = false

config/environments/production.rb

@@ -42,7 +42,9 @@
   # config.action_dispatch.x_sendfile_header = 'X-Accel-Redirect' # for NGINX
 
   # Store uploaded files on the local file system (see config/storage.yml for options)
-  config.active_storage.service = :local
+  config.active_storage.service = :dropbox
+  # config.active_storage.service = :local
+
 
   # Mount Action Cable outside main process or domain
   # config.action_cable.mount_path = nil

config/storage.yml

@@ -6,6 +6,14 @@ local:
   service: Disk
   root: <%= Rails.root.join("storage") %>
 
+dropbox:
+  service: Dropbox
+  app_key: <%= Rails.application.credentials.dig(:dropbox, :app_key) %>
+  app_secret: <%= Rails.application.credentials.dig(:dropbox, :app_secret) %>
+  access_token: <%= Rails.application.credentials.dig(:dropbox, :access_token) %>
+  user_id: <%= Rails.application.credentials.dig(:dropbox, :user_id) %>
+  access_type: <%= Rails.application.credentials.dig(:dropbox, :access_type) %>
+
 # Use rails credentials:edit to set the AWS secrets (as aws:access_key_id|secret_access_key)
 # amazon:
 #   service: S3

db/migrate/20200519002207_create_active_storage_tables.active_storage.rb

@@ -0,0 +1,27 @@
+# This migration comes from active_storage (originally 20170806125915)
+class CreateActiveStorageTables < ActiveRecord::Migration[5.2]
+  def change
+    create_table :active_storage_blobs do |t|
+      t.string   :key,        null: false
+      t.string   :filename,   null: false
+      t.string   :content_type
+      t.text     :metadata
+      t.bigint   :byte_size,  null: false
+      t.string   :checksum,   null: false
+      t.datetime :created_at, null: false
+
+      t.index [ :key ], unique: true
+    end
+
+    create_table :active_storage_attachments do |t|
+      t.string     :name,     null: false
+      t.references :record,   null: false, polymorphic: true, index: false
+      t.references :blob,     null: false
+
+      t.datetime :created_at, null: false
+
+      t.index [ :record_type, :record_id, :name, :blob_id ], name: "index_active_storage_attachments_uniqueness", unique: true
+      t.foreign_key :active_storage_blobs, column: :blob_id
+    end
+  end
+end

db/schema.rb

@@ -10,11 +10,32 @@
 #
 # It's strongly recommended that you check this file into your version control system.
 
-ActiveRecord::Schema.define(version: 2020_03_11_121715) do
+ActiveRecord::Schema.define(version: 2020_05_19_002207) do
 
   # These are extensions that must be enabled in order to support this database
   enable_extension "plpgsql"
 
+  create_table "active_storage_attachments", force: :cascade do |t|
+    t.string "name", null: false
+    t.string "record_type", null: false
+    t.bigint "record_id", null: false
+    t.bigint "blob_id", null: false
+    t.datetime "created_at", null: false
+    t.index ["blob_id"], name: "index_active_storage_attachments_on_blob_id"
+    t.index ["record_type", "record_id", "name", "blob_id"], name: "index_active_storage_attachments_uniqueness", unique: true
+  end
+
+  create_table "active_storage_blobs", force: :cascade do |t|
+    t.string "key", null: false
+    t.string "filename", null: false
+    t.string "content_type"
+    t.text "metadata"
+    t.bigint "byte_size", null: false
+    t.string "checksum", null: false
+    t.datetime "created_at", null: false
+    t.index ["key"], name: "index_active_storage_blobs_on_key", unique: true
+  end
+
   create_table "categories", force: :cascade do |t|
     t.string "name"
     t.bigint "user_id", null: false
@@ -68,6 +89,7 @@
     t.index ["reset_password_token"], name: "index_users_on_reset_password_token", unique: true
   end
 
+  add_foreign_key "active_storage_attachments", "active_storage_blobs", column: "blob_id"
   add_foreign_key "categories", "users"
   add_foreign_key "post_categories", "categories"
   add_foreign_key "post_categories", "posts"