use ActiveStorage

Gemfile

@@ -35,7 +35,6 @@ gem 'seed-fu', '~> 2.3'
 gem 'acts-as-taggable-on', '~> 6.0'
 gem 'aws-sdk-s3' #used for digital ocean integration
 gem 'mini_magick'
-gem 'carrierwave'
 
 group :development, :test do
  gem 'byebug', platforms: [:mri, :mingw, :x64_mingw]

Gemfile.lock

@@ -106,10 +106,6 @@ GEM
  rack-test (>= 0.6.3)
  regexp_parser (~> 1.2)
  xpath (~> 3.2)
- carrierwave (1.3.1)
- activemodel (>= 4.0.0)
- activesupport (>= 4.0.0)
- mime-types (>= 1.16)
  childprocess (0.9.0)
  ffi (~> 1.0, >= 1.0.11)
  chromedriver-helper (2.1.1)
@@ -181,9 +177,6 @@ GEM
  marcel (0.3.3)
  mimemagic (~> 0.3.2)
  method_source (0.9.2)
- mime-types (3.2.2)
- mime-types-data (~> 3.2015)
- mime-types-data (3.2018.0812)
  mimemagic (0.3.3)
  mini_magick (4.9.3)
  mini_mime (1.0.1)
@@ -303,7 +296,6 @@ DEPENDENCIES
  bootstrap (~> 4.1.3)
  byebug
  capybara (>= 2.15)
- carrierwave
  chromedriver-helper
  coffee-rails (~> 4.2)
  devise

app/models/user.rb

@@ -1,10 +1,59 @@
 class User < ApplicationRecord
- mount_uploader :avatar, AvatarUploader
  attr_accessor :crop_x, :crop_y, :crop_w, :crop_h
- after_update :crop_avatar
-
- def crop_avatar
- avatar.recreate_versions! if crop_x.present?
+
+ #after_update :crop_avatar
+
+ has_one_attached :avatar
+
+ before_save :check_cropping
+
+ def check_cropping
+ self.crop_settings = {x: crop_x, y: crop_y, w: crop_w, h: crop_h} if cropping?
  end
-
+
+ def cropping?
+ !crop_x.blank? && !crop_y.blank? && !crop_w.blank? && !crop_h.blank?
+ end
+
+ def cropped_avatar
+ if avatar.attached?
+ if crop_settings.is_a? Hash
+ dimensions = "#{crop_settings['w']}x#{crop_settings['h']}"
+ coord = "#{crop_settings['x']}+#{crop_settings['y']}"
+ avatar.variant(
+ crop: "#{dimensions}+#{coord}"
+ ).processed
+ else
+ avatar
+ end
+ end
+ end
+
+ def thumbnail(size = '100x100')
+ if avatar.attached?
+ if crop_settings.is_a? Hash
+ dimensions = "#{crop_settings['w']}x#{crop_settings['h']}"
+ coord = "#{crop_settings['x']}+#{crop_settings['y']}"
+ avatar.variant(
+ crop: "#{dimensions}+#{coord}",
+ resize: size
+ ).processed
+ else
+ avatar.variant(resize: size).processed
+ end
+ end
+ end
+
+
+ # def crop_avatar
+ # avatar.recreate_versions! if crop_x.present?
+ # end
+
+ private
+
+ def delete_avatar
+ self.avatar = nil
+ self.save
+ end
+
 end

app/views/users/crop.html.erb

@@ -1,10 +1,10 @@
 <h1>Crop Avatar</h1>
 
-<%= image_tag @user.avatar_url(:large), id: "cropbox" %>
+<%= image_tag @user.avatar, id: "cropbox" %>
 
 <h4>Preview</h4>
 <div style="width:100px; height:100px; overflow:hidden">
- <%= image_tag @user.avatar.url(:large), :id => "preview" %>
+ <%= image_tag @user.avatar, :id => "preview" %>
 </div>
 
 <%= form_for @user do |f| %>

app/views/users/index.html.erb

@@ -2,8 +2,11 @@
 
 <ul>
 <% @users.each do |user| %>
- <li><%= link_to user.name, user %></li>
+ <li>
+ <%= image_tag user.thumbnail if user.avatar.attached? %>
+ <%= link_to user.name, user %>
+ </li>
 <% end %>
 </ul>
 
-<p><%= link_to "New User", new_user_path %></p>
+<p><%= link_to "New User", new_user_path %></p>

app/views/users/show.html.erb

@@ -3,7 +3,13 @@
  <%= @user.name %>
 </p>
 <p>
- <%= image_tag @user.avatar_url(:thumb) if @user.avatar? %>
+ <%= image_tag @user.thumbnail if @user.avatar.attached? %>
+</p>
+<p>
+ <%= image_tag @user.cropped_avatar if @user.avatar.attached? %>
+</p>
+<p>
+ <%= image_tag @user.avatar if @user.avatar.attached? %>
 </p>
 <p>
  <%= link_to "Edit", edit_user_path(@user) %> |

config/environments/development.rb

@@ -42,6 +42,8 @@
  # number of complex assets.
  config.assets.debug = true
 
+ config.active_storage.service = :local
+
  # Raises error for missing translations
  # config.action_view.raise_on_missing_translations = true
 

config/environments/production.rb

@@ -25,6 +25,8 @@
  # Do not fallback to assets pipeline if a precompiled asset is missed.
  config.assets.compile = false
 
+ config.active_storage.service = :local
+
  # `config.assets.precompile` and `config.assets.version` have moved to config/initializers/assets.rb
 
  # Enable serving of images, stylesheets, and JavaScripts from an asset server.

config/environments/test.rb

@@ -37,6 +37,8 @@
  # Print deprecation notices to the stderr.
  config.active_support.deprecation = :stderr
 
+ config.active_storage.service = :test
+
  # Raises error for missing translations
  # config.action_view.raise_on_missing_translations = true
 end

config/storage.yml

@@ -0,0 +1,7 @@
+test:
+ service: Disk
+ root: <%= Rails.root.join("tmp/storage") %>
+
+local:
+ service: Disk
+ root: <%= Rails.root.join("storage") %>

db/migrate/20190328041452_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/migrate/20190328042854_add_crop_settings_to_user.rb

@@ -0,0 +1,5 @@
+class AddCropSettingsToUser < ActiveRecord::Migration[5.2]
+ def change
+ add_column :users, :crop_settings, :JSON
+ end
+end

db/schema.rb

@@ -10,13 +10,35 @@
 #
 # It's strongly recommended that you check this file into your version control system.
 
-ActiveRecord::Schema.define(version: 2016_05_09_210056) do
+ActiveRecord::Schema.define(version: 2019_03_28_042854) do
+
+ create_table "active_storage_attachments", force: :cascade do |t|
+ t.string "name", null: false
+ t.string "record_type", null: false
+ t.integer "record_id", null: false
+ t.integer "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 "users", force: :cascade do |t|
  t.string "name"
  t.string "avatar"
  t.datetime "created_at", null: false
  t.datetime "updated_at", null: false
+ t.json "crop_settings"
  end
 
 end