は、どのように私は次の内容のファイルを持っているデータベース

Question

にcsvファイルの日付を追加：

私が取得するコードを以下している：私はこの方法でデータベースを作成し

purchaser name item description item price purchase count merchant address merchant name 
João Silva R$10 off R$20 of food 10.0 2 987 Fake St Bob's Pizza 
Amy Pond R$30 of awesome for R$10 10.0 5 456 Unreal Rd Tom's Awesome Shop 
Marty McFly R$20 Sneakers for R$5 5.0 1 123 Fake St Sneaker Store Emporium 
Snake Plissken R$20 Sneakers for R$5 5.0 4 123 Fake St Sneaker Store Emporium 

データ：

require 'csv' 

CSV.foreach('myfile.txt', col_sep: "\t", headers: true).map do |row| 
    row.to_h 
end 

私はそれを絞ると、次のハッシュを取得します。

[{"purchaser name"=>"João Silva", "item description"=>"R$10 off R$20 of food", "item price"=>"10.0", "purchase count"=>"2", "merchant address"=>"987 Fake St", "merchant name"=>"Bob's Pizza"}, {"purchaser name"=>"Amy Pond", "item description"=>"R$30 of awesome for R$10", "item price"=>"10.0", "purchase count"=>"5", "merchant address"=>"456 Unreal Rd", "merchant name"=>"Tom's Awesome Shop"}, {"purchaser name"=>"Marty McFly", "item description"=>"R$20 Sneakers for R$5", "item price"=>"5.0", "purchase count"=>"1", "merchant address"=>"123 Fake St", "merchant name"=>"Sneaker Store Emporium"}, {"purchaser name"=>"Snake Plissken", "item description"=>"R$20 Sneakers for R$5", "item price"=>"5.0", "purchase count"=>"4", "merchant address"=>"123 Fake St", "merchant name"=>"Sneaker Store Emporium"}] 

このハッシュの各アイテムをデータベースの適切なテーブルに配置するにはどうすればよいですか？

Answer 1

CSV.foreach('myfile.txt', col_sep: "\t", headers: true).map do |row| 
    records = row.to_h 

    # you can set the records as variables: 

    purchaser = records["purchaser name"] 
    item_description = records["item description"] 
    item_price = records["item price"] 
    purchase_count = records["purchase count"] 
    merchant_address = records["merchant_address"] 
    merchant_name = records["merchant name"] 

    # now that you have the content as variables do you can whatever you want with them 
    # Merchant.where(name: merchant_name), etc... 

end