Create Pipes - Kate Evans-Spitzer - Ride Share.rb

Pipes - Kate Evans-Spitzer - Ride Share.rb

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+########################################################
+# Step 1: Establish the layers
+
+# Write a list of the layers here
+
+"
+drivers
+  driver id
+    trip
+      date
+      cost
+      rider
+      rating
+"
+
+########################################################
+# Step 2: Assign a data structure to each layer
+
+# Copy your list from above, and write what data structure each layer should have
+
+"drivers = {
+  driver id: [
+    trip: {
+      date: integer (YYYYMMDD)
+      cost: float (15.95)     # these are integers in the CSV but if they represent currency should probably be floats
+      rider: symbol           # could be string, but this is consistent with driver IDs
+      rating: integer
+"
+
+########################################################
+# Step 3: Make the data structure!
+
+# Setup the data strcture and manually write in data presented in rides.csv
+
+drivers = {
+  DR0001: [
+    {
+      date: 20160203,
+      cost: 10.0,
+      rider_id: :RD0003,
+      rating: 3,
+    },
+    {
+      date: 20160203,
+      cost: 30.0,
+      rider_id: :RD0015,
+      rating: 4,
+    },
+    {
+      date: 20160205,
+      cost: 45.0,
+      rider_id: :RD0003,
+      rating: 2,
+    }
+  ],
+  DR0002: [
+    {
+      date: 20160203,
+      cost: 25.0,
+      rider_id: :RD0073,
+      rating: 5,
+    },
+    {
+      date: 20160204,
+      cost: 15.0,
+      rider_id: :RD0013,
+      rating: 1,
+    },
+    {
+      date: 20160205,
+      cost: 35.0,
+      rider_id: :RD0066,
+      rating: 3,
+    }
+  ],
+  DR0003: [
+    {
+      date: 20160204,
+      cost: 5.0,
+      rider_id: :RD0066,
+      rating: 5,
+    },
+    {
+      date: 20160205,
+      cost: 50.0,
+      rider_id: :RD0003,
+      rating: 2,
+    }
+  ],
+  DR0004: [
+    {
+      date: 20160203,
+      cost: 5.0,
+      rider_id: :RD0022,
+      rating: 5,
+    },
+    {
+      date: 20160204,
+      cost: 10.0,
+      rider_id: :RD0022,
+      rating: 4,
+    },
+    {
+      date: 20160205,
+      cost: 20.0,
+      rider_id: :RD0073,
+      rating: 5,
+    }
+  ]
+}
+
+########################################################
+# Step 4: Total Divers Earnings and Number of Rides
+
+# Use an iteration block to print driver's total rides and money made
+puts
+
+drivers.each do |driver, drives|
+  puts "Recent drive data for driver #{driver}:"
+  total_rides = 0
+  total_money = 0.0
+  average_rating = 0
+  drives.each do |drive|
+    total_rides += 1
+    total_money += drive[:cost]
+    average_rating += drive[:rating]
+  end
+  average_rating *= 1.0      # So those poor drivers don't get their ratings rounded down by integers
+  average_rating /= total_rides
+  puts "Total rides: #{total_rides}"
+  puts "Total earnings: $#{"%.2f" % total_money}"
+  puts "Average rating: #{"%.1f" % average_rating}"
+  puts
+end

git-testing.txt

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+test