Use shrine to upload files instead of ActiveStorage

Gemfile

@@ -5,31 +5,31 @@ git_source(:github) { |repo| "https://github.com/#{repo}.git" }
 
 ruby '3.2.3'
 gem 'bootsnap', require: false
+gem 'chartkick'
 gem 'devise'
+gem 'geocoder'
+gem 'importmap-rails'
 gem 'pg'
 gem 'puma'
 gem 'pundit'
 gem 'rails'
+gem 'shrine', '~> 3.5'
+gem 'sidekiq'
+gem 'sidekiq-cron'
 gem 'sprockets-rails'
 gem 'stimulus-rails'
 gem 'tailwindcss-rails'
 gem 'turbo-rails'
 gem 'tzinfo-data', platforms: %i[mingw mswin x64_mingw jruby]
-gem 'importmap-rails'
-gem 'chartkick'
-gem 'geocoder'
-gem 'sidekiq'
-gem 'sidekiq-cron'
-
 
 group :development, :test do
   gem 'debug', platforms: %i[mri mingw x64_mingw]
+  gem 'dotenv-rails'
   gem 'factory_bot_rails'
   gem 'ffaker'
-  gem 'rspec-rails'
-  gem 'dotenv-rails'
   gem 'pry-byebug'
   gem 'pry-rails'
+  gem 'rspec-rails'
 end
 
 group :test do

Gemfile.lock

@@ -75,6 +75,8 @@ GEM
       minitest (>= 5.1)
       mutex_m
       tzinfo (~> 2.0)
+    addressable (2.8.6)
+      public_suffix (>= 2.0.2, < 6.0)
     ast (2.4.2)
     attr_extras (7.1.0)
     base64 (0.2.0)
@@ -88,6 +90,7 @@ GEM
     coderay (1.1.3)
     concurrent-ruby (1.2.3)
     connection_pool (2.4.1)
+    content_disposition (1.0.0)
     crass (1.0.6)
     date (3.3.4)
     debug (1.9.2)
@@ -105,6 +108,8 @@ GEM
     dotenv-rails (3.1.0)
       dotenv (= 3.1.0)
       railties (>= 6.1)
+    down (5.4.2)
+      addressable (~> 2.8)
     drb (2.2.1)
     erubi (1.12.0)
     et-orbi (1.2.11)
@@ -189,6 +194,7 @@ GEM
       pry (>= 0.10.4)
     psych (5.1.2)
       stringio
+    public_suffix (5.0.5)
     puma (6.4.2)
       nio4r (~> 2.0)
     pundit (2.3.1)
@@ -285,6 +291,9 @@ GEM
     ruby-progressbar (1.13.0)
     shoulda-matchers (6.2.0)
       activesupport (>= 5.2.0)
+    shrine (3.5.0)
+      content_disposition (~> 1.0)
+      down (~> 5.1)
     sidekiq (7.2.2)
       concurrent-ruby (< 2)
       connection_pool (>= 2.3.0)
@@ -372,6 +381,7 @@ DEPENDENCIES
   rspec-rails
   rubocop-rails
   shoulda-matchers
+  shrine (~> 3.5)
   sidekiq
   sidekiq-cron
   simplecov

app/controllers/imports_controller.rb

@@ -15,13 +15,14 @@ class ImportsController < ApplicationController
 
   def create
     files = import_params[:files].reject(&:blank?)
+
     import_ids = files.map do |file|
       import = current_user.imports.create(
         name: file.original_filename,
         source: params[:import][:source]
       )
 
-      import.file.attach(file)
+      import.update(raw_data: JSON.parse(File.read(file)))
       import.id
     end
 

app/jobs/import_job.rb

@@ -1,12 +1,11 @@
+# frozen_string_literal: true
+
 class ImportJob < ApplicationJob
   queue_as :default
 
   def perform(user_id, import_id)
     user = User.find(user_id)
     import = user.imports.find(import_id)
-    file = import.file
-
-    sleep 3 # It takes time to process uploaded file
 
     result = parser(import.source).new(import).call
 

app/models/import.rb

@@ -1,8 +1,10 @@
+# frozen_string_literal: true
+
 class Import < ApplicationRecord
   belongs_to :user
   has_many :points, dependent: :destroy
 
-  has_one_attached :file
+  include ImportUploader::Attachment(:raw)
 
   enum source: { google: 0, owntracks: 1 }
 end

app/services/google_maps/timeline_parser.rb

@@ -1,11 +1,10 @@
 # frozen_string_literal: true
 
 class GoogleMaps::TimelineParser
-  attr_reader :import, :json
+  attr_reader :import
 
   def initialize(import)
     @import = import
-    @json = JSON.parse(import.file.download)
   end
 
   def call
@@ -38,7 +37,7 @@ class GoogleMaps::TimelineParser
   private
 
   def parse_json
-    json['timelineObjects'].flat_map do |timeline_object|
+    import.raw_data['timelineObjects'].flat_map do |timeline_object|
       if timeline_object['activitySegment'].present?
         if timeline_object['activitySegment']['startLocation'].blank?
           next if timeline_object['activitySegment']['waypointPath'].blank?
@@ -61,7 +60,7 @@ class GoogleMaps::TimelineParser
         end
       elsif timeline_object['placeVisit'].present?
         if timeline_object['placeVisit']['location']['latitudeE7'].present? &&
-            timeline_object['placeVisit']['location']['longitudeE7'].present?
+           timeline_object['placeVisit']['location']['longitudeE7'].present?
           {
             latitude: timeline_object['placeVisit']['location']['latitudeE7'].to_f / 10**7,
             longitude: timeline_object['placeVisit']['location']['longitudeE7'].to_f / 10**7,

app/services/own_tracks/export_parser.rb

@@ -5,7 +5,7 @@ class OwnTracks::ExportParser
 
   def initialize(import)
     @import = import
-    @json = JSON.parse(import.file.download)
+    @json = import.raw_data
   end
 
   def call
@@ -32,7 +32,7 @@ class OwnTracks::ExportParser
     doubles = points_data.size - points
     processed = points + doubles
 
-    { raw_points: points_data.size, points: points, doubles: doubles, processed: processed }
+    { raw_points: points_data.size, points:, doubles:, processed: }
   end
 
   private
@@ -40,8 +40,8 @@ class OwnTracks::ExportParser
   def parse_json
     points = []
 
-    json.keys.each do |user|
-      json[user].keys.each do |devise|
+    json.each_key do |user|
+      json[user].each_key do |devise|
         json[user][devise].each { |point| points << OwnTracks::Params.new(point).call }
       end
     end

app/uploaders/import_uploader.rb

@@ -0,0 +1,5 @@
+# frozen_string_literal: true
+
+class ImportUploader < Shrine
+  # plugins and uploading logic
+end

config/shrine.rb

@@ -0,0 +1,13 @@
+# frozen_string_literal: true
+
+require 'shrine'
+require 'shrine/storage/file_system'
+
+Shrine.storages = {
+  cache: Shrine::Storage::FileSystem.new('public', prefix: 'uploads/cache'), # temporary
+  store: Shrine::Storage::FileSystem.new('public', prefix: 'uploads')        # permanent
+}
+
+Shrine.plugin :activerecord           # loads Active Record integration
+Shrine.plugin :cached_attachment_data # enables retaining cached file across form redisplays
+Shrine.plugin :restore_cached_data    # extracts metadata for assigned cached files

db/migrate/20240425200155_add_raw_data_to_imports.rb

@@ -0,0 +1,5 @@
+class AddRawDataToImports < ActiveRecord::Migration[7.1]
+  def change
+    add_column :imports, :raw_data, :jsonb
+  end
+end

db/schema.rb

@@ -10,7 +10,7 @@
 #
 # It's strongly recommended that you check this file into your version control system.
 
-ActiveRecord::Schema[7.1].define(version: 2024_04_04_154959) do
+ActiveRecord::Schema[7.1].define(version: 2024_04_25_200155) do
   # These are extensions that must be enabled in order to support this database
   enable_extension "plpgsql"
 
@@ -51,6 +51,7 @@ ActiveRecord::Schema[7.1].define(version: 2024_04_04_154959) do
     t.integer "raw_points", default: 0
     t.integer "doubles", default: 0
     t.integer "processed", default: 0
+    t.jsonb "raw_data"
     t.index ["source"], name: "index_imports_on_source"
     t.index ["user_id"], name: "index_imports_on_user_id"
   end

spec/factories/imports.rb

@@ -1,7 +1,10 @@
+# frozen_string_literal: true
+
 FactoryBot.define do
   factory :import do
     user
     name { 'APRIL_2013.json' }
     source { 1 }
+    raw_data { JSON.parse(File.read('spec/fixtures/files/owntracks/export.json')) }
   end
 end

spec/services/own_tracks/export_parser_spec.rb

@@ -1,13 +1,13 @@
+# frozen_string_literal: true
+
 require 'rails_helper'
 
 RSpec.describe OwnTracks::ExportParser do
   describe '#call' do
     subject(:parser) { described_class.new(import).call }
 
-    let(:file_path) { 'spec/fixtures/files/owntracks/export.json' }
-    let(:file) { fixture_file_upload(file_path) }
     let(:user) { create(:user) }
-    let(:import) { create(:import, user: user, file: file, name: File.basename(file.path)) }
+    let(:import) { create(:import, user:, name: 'owntracks_export.json') }
 
     context 'when file exists' do
       it 'creates points' do