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Carets - Julia Meier - Rideshare #32

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52 changes: 52 additions & 0 deletions Julia_rideshare6.rb
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#Rideshare program for Julia Meier HW- due on August 14

driver = {
"DR0001" => [
{date: "03 Feb 2016", riderID: "RD0003", cost: 10, rating: 3},
{date: "03 Feb 2016", riderID: "RD0015", cost: 30, rating: 4},
{date: "05 Feb 2016", riderID: "RD0003", cost: 45, rating: 2}
],
"DR0002" => [
{date: "03 Feb 2016", riderID: "RD0073", cost: 25, rating: 5},
{date: "04 Feb 2016", riderID: "RD0013", cost: 15, rating: 1}
],
"DR0003" => [
{date: "04 Feb 2016", riderID: "RD0066", cost: 5, rating: 5}
],
"DR0004" => [
{date: "03 Feb 2016", riderID: "RD0022", cost: 5, rating: 5},
{date: "04 Feb 2016", riderID: "RD0022", cost: 10, rating: 4},
{date: "05 Feb 2016", riderID: "RD0073", cost: 20, rating: 5}
]
}

trips_hash = {}
earnings_hash = {}
average_rating_hash = {}

puts "There are #{driver.length} drivers."

driver.each do |drivername, ride_array|
number_of_trips = driver[drivername].length
trips_hash.store(drivername.to_sym, number_of_trips)

total_earnings = 0
sum_of_ratings = 0
number_of_trips.times do |x|
total_earnings = total_earnings + driver[drivername][x][:cost]
sum_of_ratings = sum_of_ratings + driver[drivername][x][:rating]
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@tildeee tildeee Aug 16, 2017

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in this specific loop, driver[drivername] is actually the same as ride_array :)

end

earnings_hash.store(drivername.to_sym, total_earnings)
average_rating = (sum_of_ratings.to_f)/(number_of_trips.to_f)
average_rating_hash.store(drivername.to_sym, average_rating)
end

trips_hash.each do |drivername, number_of_trips|
puts "Driver #{drivername} gave #{number_of_trips} rides and earned $#{earnings_hash[drivername]}. His average rating was #{average_rating_hash[drivername]} out of 5.0."
end

# QUESTIONS
# 1- Why did I have to put quotes around DR0001. WHen I didn't use quotes it gave me this error:
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@tildeee tildeee Aug 16, 2017

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Were you creating the hash with hash rocket notation ( => ) or symbol notation?

# Julia_rideshare2.rb:2:in `<main>': uninitialized constant DR0001 (NameError)
# How can I make one hash to store the number_of_trips, earnings and ratings data instead of three separate ones?
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@tildeee tildeee Aug 16, 2017

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You can absolutely make one hash to store this information ;)

Within your loop, you can calculate and print the appropriate information! Instead of iterating through trips_hash on line 45, you can print that same line (line 46) in your driver loop (before it ends on line 43).

There are other alternatives:

  • You can make a hash that stores all of those as key/value pairings that you associate with all of the calculated data
  • You can make a CLASS! called Driver! and a class called Ride! :) :) :)