How to make user input to csv update the actual csv file-CodePudding

In ruby 3.1.2, I have this csv file:

make,model,color,doors,email
dodge,charger,black,4,[email protected]
ford,focus,blue,5,[email protected]
nissan,350z,black,2,[email protected]
mazda,miata,white,2,[email protected]
honda,civid,brown,4,[email protected]
corvette,stingray,red,2,[email protected]
ford,fiesta,blue,5,[email protected]
bmw,m4,black,2,[email protected]
audi,a5,blue,2,[email protected]
subaru,brz,black,2,[email protected]
lexus,rc,black,2,[email protected]

My current program allows a user to input an email and from that email it will go to that line and change the value of the model of a car, and then print out the csv onto the screen. What can be done to make the code also update the actual CSV file in the directory?

This is my code:

require "csv"

csv = CSV.read('cars.csv', headers: true)
print "Enter an email: \n> "
demo = gets.chomp
#print csv.find {|row| row['email'] == demo}
got = csv.find {|row| row['email'] == demo}
p got

p got.fields
p got['model']
got['model'] = 'rcf'
p got['model']
p got.fields
#prints out the csv file 
puts csv.to_s

if my coding approach is different and if there's a better way don't hesitate to change any of my coding or completely not use it and go another path, please comment the code

CodePudding user response：

Please refer below for your reference:

csv = CSV.read('cars.csv', headers: true)
print "Enter an email: \n> "
demo = gets.chomp
csv.map{|row| row['model'] = 'rcf' if row['email'] == demo}

puts csv.to_s

CSV.open("cars.csv", "wb") do |new_csv|
  new_csv << %w[make model color doors email] 
  csv.each do |row|
    new_csv << row
  end
end

I hope this will help you.