Day15 - 匯出(下載) PDF

13th鐵人賽

 2021/09/28

字數統計: 262閱讀時間: 1 min

前言

使用者在操作頁面或輸入網址後，要下載檔案(不局限於 PDF 檔案)，可以使用 Ruby on Rails 內建的 send_file 來處理

實作

下載的檔案不局限於 PDF 檔，可參考此 pr

# config/routes.rb

resources :shops do
  collection do
    get :download_pdf
  end
end



---



# app/controllers/shops_controller.rb

def download_pdf
  pdf_path = Rails.root.join('data/river_demo_pdf.pdf')

  send_file pdf_path
end



---



# spec/requests/shops_spec.rb

describe "GET /download_pdf" do
  subject { get download_pdf_shops_path, params: { format: :text } }

  it "send correct file" do
    allow_any_instance_of(ShopsController).to receive(:send_file).with(Rails.root.join('data/river_demo_pdf.pdf'))
    subject
  end
end