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load_data.rb
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load_data.rb
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require 'rubygems'
require 'sequel'
require 'csv'
#Constants / Settings
odd_beers = ["Redhook Nut Brown", "Redhook IPA", "Redhook ESB",
"Redhook Blonde Ale", "Stone Imperial Russian Stout", "Serpents Stout",
"Old Rasputin Russian Imperial Stout", "Guiness Extra Stout", "Dragon Stout"]
firstbeer_array = ['Budweiser Light', 'Budweiser Light Platinum', 'Busch Light',
'Coors Light', 'Corona Light', 'Heineken Light', 'Miller Lite',
'Yuengling Light']
csv_file = 'data/names.csv'
hipster_count = 330
current_hipsters = 0
user = ENV['cs336user'] || "Your user here"
pass = ENV['cs336pass'] || "Your pass here"
#DB connection
DB = Sequel.connect("mysql2://#{user}:#{pass}@cs336-24.cs.rutgers.edu/project")
#Tables
drinkers = DB[:drinkers]
likes = DB[:likes]
favorite = DB[:favorite]
firstbeer = DB[:firstbeer]
beerDB = DB[:beers]
bars = DB[:bars]
sells = DB[:sells]
frequents = DB[:frequents]
DB.run File.read('queries/beers.sql') if beerDB.count == 0
DB.run File.read('queries/bars.sql') if bars.count == 0
bar_names = bars.select(:name).all.map { |bar| bar[:name] }
#Populate database
id = 1;
CSV.foreach(csv_file, :headers => :first_row) do |row|
user = {:id => id, :name => "#{row[0]} #{row[1]}",
:gender => row[2], :address => row[3],
:city => row[4], :phone => row[5],
:age => 2013 - row[6].split('/')[2].to_i}
drinkers.insert(user)
id += 1;
favorite_beer = nil
#If hipster then they like weird stuff
if (user[:age] >= 22 && user[:age] <= 27 && current_hipsters < hipster_count)
current_hipsters += 1
firstbeer.insert({ :drinker_id => user[:id], :beer => odd_beers.sample})
favorite_beer = odd_beers.sample
favorite.insert({ :drinker_id => user[:id], :beer => favorite_beer })
likes.insert({ :drinker_id => user[:id], :beer => favorite_beer })
new_beers = odd_beers - [favorite_beer]
rand(2..5).times do
beer = new_beers.sample
new_beers = new_beers - [beer]
likes.insert({ :drinker_id => user[:id], :beer => beer })
end
else
entry = { :drinker_id => user[:id], :beer => firstbeer_array.sample,
:year => (2013 - (user[:age] - 21)) }
firstbeer.insert(entry)
if(user[:gender] == 'female')
if(user[:age] < 30)
farray = beerDB.select(:name).where{ibu < 25}
favorite_beer = farray.to_a.sample[:name]
larray = beerDB.select(:name).where{abv < 5}
like_array = larray.map { |beer| beer[:name] }
likes.insert({ :drinker_id => user[:id], :beer => favorite_beer })
new_beers = like_array - [favorite_beer]
rand(1..6).times do
beer = new_beers.sample
new_beers = new_beers - [beer]
likes.insert({ :drinker_id => user[:id], :beer => beer })
end
elsif (user[:age] < 40)
farray = beerDB.select(:name).where{ibu < 21}
favorite_beer = farray.to_a.sample[:name]
larray = beerDB.select(:name).where{abv < 4.6}
like_array = larray.map { |beer| beer[:name] }
likes.insert({ :drinker_id => user[:id], :beer => favorite_beer })
new_beers = like_array - [favorite_beer]
rand(1..6).times do
beer = new_beers.sample
new_beers = new_beers - [beer]
likes.insert({ :drinker_id => user[:id], :beer => beer })
end
else
farray = beerDB.select(:name).where{ibu < 16}
favorite_beer = farray.to_a.sample[:name]
larray = beerDB.select(:name).where{abv < 4.3}
like_array = larray.map { |beer| beer[:name] }
likes.insert({ :drinker_id => user[:id], :beer => favorite_beer })
new_beers = like_array - [favorite_beer]
rand(1..6).times do
beer = new_beers.sample
new_beers = new_beers - [beer]
likes.insert({ :drinker_id => user[:id], :beer => beer })
end
end
else
if(user[:age] < 30)
farray = beerDB.select(:name).where{ibu > 25}
favorite_beer = farray.to_a.sample[:name]
larray = beerDB.select(:name).where{abv > 4.6}
like_array = larray.map { |beer| beer[:name] }
likes.insert({ :drinker_id => user[:id], :beer => favorite_beer })
new_beers = like_array - [favorite_beer]
rand(1..6).times do
beer = new_beers.sample
new_beers = new_beers - [beer]
likes.insert({ :drinker_id => user[:id], :beer => beer })
end
elsif (user[:age] < 40)
farray = beerDB.select(:name).where{ibu > 34}
favorite_beer = farray.to_a.sample[:name]
larray = beerDB.select(:name).where{abv > 4.9}
like_array = larray.map { |beer| beer[:name] }
likes.insert({ :drinker_id => user[:id], :beer => favorite_beer })
new_beers = like_array - [favorite_beer]
rand(1..6).times do
beer = new_beers.sample
new_beers = new_beers - [beer]
likes.insert({ :drinker_id => user[:id], :beer => beer })
end
else
farray = beerDB.select(:name).where{ibu > 55}
favorite_beer = farray.to_a.sample[:name]
larray = beerDB.select(:name).where{abv > 5.1}
like_array = larray.map { |beer| beer[:name] }
likes.insert({ :drinker_id => user[:id], :beer => favorite_beer })
new_beers = like_array - [favorite_beer]
rand(1..6).times do
beer = new_beers.sample
new_beers = new_beers - [beer]
likes.insert({ :drinker_id => user[:id], :beer => beer })
end
end
end
entry = {:drinker_id => user[:id], :beer => favorite_beer}
favorite.insert(entry)
end
#Add frequents
random_bar = bar_names.sample
frequents.insert({ :drinker_id => user[:id], :bar => random_bar})
if sells.where(:bar => random_bar, :beer => favorite_beer).first.nil?
sells.insert(:bar => random_bar, :beer => favorite_beer, :price => rand(2..6).round(2))
end
end