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# config/initializers/redis.rb | |
require 'rubygems' | |
require 'redis' | |
REDIS = Redis.new() | |
class User | |
attr_accessor :name, :id | |
def initialize(name, id) | |
@name = name | |
@id = id | |
end | |
def like_recipe(recipe) | |
REDIS.sadd "user:#{self.id}:liked_recipes", recipe.id | |
end | |
def has_in_common_with_user?(another_user) | |
REDIS.sinter("user:#{self.id}:liked_recipes", "user:#{another_user.id}:liked_recipes").size > 0 | |
end | |
def liked_recipes | |
REDIS.smembers "user:#{self.id}:liked_recipes" | |
end | |
end | |
class Recipe | |
attr_accessor :name, :id, :stuff_in_in | |
def initialize(name, id, stuff_in_it = []) | |
@name = name | |
@id = id | |
@stuff_in_it = [] | |
end | |
end | |
r1 = Recipe.new("Spaghetti", 1, ["tomato", "onion", "meat"]) | |
r2 = Recipe.new("Pizza", 2, ["tomato", "onion", "flour"]) | |
u1 = User.new("elad", 1) | |
u2 = User.new("casey", 2) | |
u1.like_recipe(r1) | |
u1.like_recipe(r2) | |
u2.like_recipe(r2) | |
puts "user #{u1.name} likes: #{u1.liked_recipes}" | |
puts "user #{u2.name} likes: #{u2.liked_recipes}" | |
puts "#{u1.name} has recipes in common with #{u2.name}: #{u1.has_in_common_with_user?(u2)}" |
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