前端处理:使用Rails API的文件/CSV

# app/controllers/api/v1/uploads_controller.rb
class Api::V1::UploadsController < ApplicationController
  def create
    uploaded_file = params[:file]
    if uploaded_file.present?
      File.open(Rails.root.join('public', 'uploads', uploaded_file.original_filename), 'wb') do |file|
        file.write(uploaded_file.read)
      end
      render json: { message: 'File uploaded successfully' }, status: :created
    else
      render json: { error: 'No file uploaded' }, status: :unprocessable_entity
    end
  end
end

# app/controllers/api/v1/csv_controller.rb
class Api::V1::CsvController < ApplicationController
  def import
    csv_text = File.read(params[:file].path)
    csv = CSV.parse(csv_text, headers: true)
    csv.each do |row|
      # Process each row, e.g., create a new record in the database
      Product.create!(name: row['name'], price: row['price'])
    end
    render json: { message: 'CSV imported successfully' }, status: :created
  end

  def export
    csv_data = Product.all.to_csv
    send_data(csv_data, filename: 'products.csv', type: 'text/csv')
  end
end