Maya Wang's FarMar Baseline

.gitignore

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+*.gem
+*.rbc
+/.config
+/coverage/
+/InstalledFiles
+/pkg/
+/spec/reports/
+/spec/examples.txt
+/test/tmp/
+/test/version_tmp/
+/tmp/
+
+# Used by dotenv library to load environment variables.
+# .env
+
+## Specific to RubyMotion:
+.dat*
+.repl_history
+build/
+*.bridgesupport
+build-iPhoneOS/
+build-iPhoneSimulator/
+
+## Specific to RubyMotion (use of CocoaPods):
+#
+# We recommend against adding the Pods directory to your .gitignore. However
+# you should judge for yourself, the pros and cons are mentioned at:
+# https://guides.cocoapods.org/using/using-cocoapods.html#should-i-check-the-pods-directory-into-source-control
+#
+# vendor/Pods/
+
+## Documentation cache and generated files:
+/.yardoc/
+/_yardoc/
+/doc/
+/rdoc/
+
+## Environment normalization:
+/.bundle/
+/vendor/bundle
+/lib/bundler/man/
+
+# for a library or gem, you might want to ignore these files since the code is
+# intended to run in multiple environments; otherwise, check them in:
+# Gemfile.lock
+# .ruby-version
+# .ruby-gemset
+
+# unless supporting rvm < 1.11.0 or doing something fancy, ignore this:
+.rvmrc
+.DS_Store

.ruby-gemset

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+farmar

.ruby-version

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+2.3.0

Rakefile

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+require 'rake/testtask'
+
+Rake::TestTask.new do |t|
+  t.libs = ["lib", "specs"]
+  t.warning = false
+  t.verbose = false
+  t.test_files = FileList['specs/*_spec.rb']
+  #convention: testfiles need to end with #_spec.rb
+  #old version: _test.rb
+  puts "Running TestTask"
+end
+
+task default: :test do #default test, run TestTask first(built in, knows test -->TestTask)
+    puts "Running my Rakefile"
+end

lib/far_mar.rb

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+# gems your project needs
+require 'csv'
+
+# our namespace module
+module FarMar; end
+
+# all of our data classes that live in the module
+require_relative './utils'
+require_relative './finder'
+require_relative './far_mar/farmar_market'
+require_relative './far_mar/farmar_product'
+require_relative './far_mar/farmar_sale'
+require_relative './far_mar/farmar_vendor'
+
+
+
+# ...require all needed classes
+
+
+# puts FarMar::Market.find("5").inspect
+# puts FarMar::Market.new.vendors("3").inspect
+
+# vendor = FarMar::Vendor.new("3", "Breitenberg Inc", "5", "1")
+# puts vendor.revenue
+
+# product = FarMar::Product.new("1","Dry Beets","1")
+# puts product.sales
+# product = FarMar::Product.new("1","Dry Beets","1")
+# puts product.number_of_sales
+
+# puts FarMar::Sale.between("2013-11-11 18:43:56 -0800", "2013-11-12 12:00:35 -0800").size
+# #=> 1294
+
+# market = FarMar::Market.new("2", "Silverdale Farmers Market", "98383", "Silverdale", "Kitsap", "Washington", "98383")
+# puts market.products("2").size
+# => 3
+
+# puts FarMar::Market.search("school").size
+
+ # market = FarMar::Market.new("2","Silverdale Farmers Market","98383","Silverdale","Kitsap","Washington","98383")
+ # puts market.prefered_vendor_direct.inspect
+
+ # market = FarMar::Market.new("2", "Silverdale Farmers Market", "98383", "Silverdale", "Kitsap", "Washington", "98383")
+ # puts market.prefered_vendor("2013-11-07").inspect
+ # => #<FarMar::Vendor:0x007fc3d92ed390 @id="2590", @name="Swaniawski-Schmeler", @employees_num="11", @market_id="482">
+
+#  market = FarMar::Market.new("2","Silverdale Farmers Market","98383","Silverdale","Kitsap","Washington","98383")
+#  puts market.worst_vendor_direct(FarMar::Vendor.all).inspect
+#  #=> <FarMar::Vendor:0x007ff54c1d1480 @id="1160", @name="Maggio, Spencer and Bergstrom", @employees_num="9", @market_id="213">
+#
+#  market = FarMar::Market.new("2", "Silverdale Farmers Market", "98383", "Silverdale", "Kitsap", "Washington", "98383")
+#  puts market.worst_vendor("2013-11-07").inspect
+# #=> <FarMar::Vendor:0x007ff54d80f2d8 @id="1470", @name="Quitzon LLC", @employees_num="8", @market_id="271">
+
+# puts FarMar::Vendor.most_revenue(3).inspect
+
+# puts FarMar::Vendor.most_items(3).inspect
+
+# puts FarMar::Vendor.revenue("2013-11-07")
+# #=>8995506.0
+
+# puts FarMar::Sale.find_by_vendor_id("3").inspect
+# vendor = FarMar::Vendor.new("3", "Breitenberg Inc", "5", "1")
+# puts vendor.revenue("2013-11-13")
+# # =>9128.0
+
+puts FarMar::Product.most_revenue(1).inspect
+#=>7895

lib/far_mar/farmar_market.rb

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+# lib/farmar_market.rb
+# require_relative '../far_mar'
+require 'date'
+
+class FarMar::Market < Finder
+  attr_reader :id, :name
+  def initialize(id, name, address, city, county, state, zip)
+     @id = id
+     @name = name
+     @address = address
+     @city = city
+     @county = county
+     @state = state
+     @zip = zip
+  end
+
+  # return an array of class Market objects
+  def self.all
+    market_csv_file = "/Users/mengyao/ADA_class/FarMar/support/markets.csv"
+
+    markets = []
+    CSV.foreach(market_csv_file) do |row|
+      id = row[0].to_s
+      name = row[1].to_s
+      address =row[2].to_s
+      city = row[3].to_s
+      county = row[4].to_s
+      state = row[5].to_s
+      zip = row[6].to_s
+      markets << FarMar::Market.new(id, name, address, city, county, state, zip)
+    end
+    return markets
+  end
+
+  # =========inherite .find(id) from Finder class===========
+  # return an Market object that corresponds to the given market id
+  # def self.find(id)
+  #   found_market = nil
+  #   all.each do |market|
+  #     if market.id == id
+  #       found_market = market
+  #       break
+  #     end
+  #   end
+  #   return found_market
+  # end
+  #============================================================
+
+  # return an array of FarMar::Market objects where the market name or vendor name contain the search_term
+  def self.search(search_term)
+    term = search_term.downcase
+    # return an array of Market objects found with the matched market name or vendor name
+    return FarMar::Market.all.select do |market|
+      # a Market obejct's market name
+      market_name = market.name
+      # a Market object's associated (an array of) Vendor objects
+      vendors = FarMar::Vendor.by_market(market.id)
+      # get an array of each Vendor objects' vendor name
+      vendor_names = vendors.map!{|vendor| vendor.name}
+      # find search_term in market name(a string) and in each vendor name in an array of vendor names string
+      market_name.downcase.include?(term) || vendor_names.any?{ |vendor_name| vendor_name.downcase.include?(term) }
+    end
+  end
+
+  # return an array of FarMar::Product objects that are associated to the market through the FarMar::Vendor class.
+  # In another word, input a market_id and return the Product objects that associated with that market_id.
+  def products(market_id)
+    # return an array of its associated Vendor objects
+    vendors = FarMar::Vendor.by_market(market_id)
+    # iterate over all vendor_ids. for each vendor_id, return Product objects that associated with this vendor_id.
+    return vendors.map do |vendor|
+      FarMar::Product.all.select { |product| product.vendor_id == vendor.id }
+    end.flatten
+    # last step return array of array, call method flatten over return result
+  end
+
+  # return the Vendor object with the highest revenue among a group of vendors
+  def prefered_vendor_direct(vendors)
+    # vendors => FarMar::Vendor.all can put this in method call
+    # get an array Vendor objects sorted by vendor revenue in accending order
+    vendors_by_revenue =  vendors.sort_by { |vendor| vendor.revenue }
+    # get the vendor that has the highest revenue(the last element in the array)
+    return vendors_by_revenue.last
+  end
+
+  # return an array of FarMar::Vendor objects that are associated with the market by the market_id field
+  def vendors
+    return FarMar::Vendor.all.select { |vendor| @id == vendor.market_id }
+  end
+
+  # ====================about MIXIN:=========================
+  # I access Utils here directly and call get_day_range method.
+  # I can use mixin, put "extend" on top and outside the Market class.
+  # I did not do it that way as here we do not want to expose the method to this class. But I got the concept.
+  # =========================================================
+
+  # return the Vendor object with the highest revenue for the given date
+  def prefered_vendor(date)
+    beginning_time, end_time = Utils.get_day_range(date)
+    # get an array of Sale objects in the given date
+    sales = FarMar::Sale.between(beginning_time, end_time)
+    # get an array of Vendors associated with the Sale objects
+    vendors = sales.map{|sale|sale.vendor}
+    # get the prefered vendor associate with the Sale object on that date
+    return self.prefered_vendor_direct(vendors)
+  end
+
+  # returnsthe vendor with the lowest revenue
+  def worst_vendor_direct(vendors)
+    # vendors => FarMar::Vendor.all can put this in method call
+    # get an array Vendor objects sorted by vendor revenue in accending order
+    vendors_by_revenue =  vendors.sort_by { |vendor| vendor.revenue }
+    # get the vendor that has the lowest revenue(the last element in the array)
+    return vendors_by_revenue.first
+  end
+
+  # return the vendor with the lowest revenue on the given date
+  def worst_vendor(date)
+    beginning_time, end_time = Utils.get_day_range(date)
+    # get an array of Sale objects in the given date
+    sales = FarMar::Sale.between(beginning_time, end_time)
+    # get an array of Vendors associated with the Sale objects
+    vendors = sales.map{|sale| sale.vendor}
+    # get the prefered vendor associate with the Sale object on that date
+    return self.worst_vendor_direct(vendors)
+  end
+
+end

lib/far_mar/farmar_product.rb

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+# lib/farmar_product.rb
+# require_relative '../far_mar'
+
+class FarMar::Product < Finder
+  attr_reader :id, :vendor_id
+  def initialize(id, name, vendor_id)
+    @id = id
+    @name = name
+    @vendor_id = vendor_id
+  end
+
+  # return an array of class product objects
+  def self.all
+    if @products != nil
+      return @products
+    end
+
+    product_csv_file = "/Users/mengyao/ADA_class/FarMar/support/products.csv"
+
+    products = []
+    CSV.foreach(product_csv_file) do |row|
+      id = row[0].to_s
+      name = row[1].to_s
+      vendor_id =row[2].to_s
+
+      products << FarMar::Product.new(id, name, vendor_id)
+    end
+
+    @products = products
+    return @products
+  end
+
+  # =========inherite .find(id) from Finder class===========
+  # # return an product object that corresponds to the given product id
+  # def self.find(id)
+  #   found_product = nil
+  #   all.each do |product|
+  #     if id == product.id
+  #       found_product = product
+  #       break
+  #     end
+  #   end
+  #   return found_product
+  # end
+  #============================================================
+
+  # returns all of the FarMar::Product objects with the given vendor_id
+  def self.by_vendor(vendor_id)
+    return self.all.select {|product| product.vendor_id == vendor_id }
+  end
+
+  # returns the top n product instances ranked by total revenue
+  def self.most_revenue(n)
+    # get an array of Product objects sorted by revenue in descending order
+    products_by_revenue = FarMar::Product.all.sort_by {|product| product.vendor.revenue}.reverse
+    # get the top n Vendor objecthighest revenue
+    return products_by_revenue.slice(0...n)
+
+  end
+
+  # returns an array of FarMar::Vendor objects that is associated with Product's vendor_id
+  def vendor
+    return FarMar::Vendor.find(@vendor_id)
+  end
+
+  # return an array of FarMar::Sale objects that are associated with the product_id
+  def sales
+    return FarMar::Sale.find_by_product_id(@id)
+  end
+
+  # returns the number of times this product has been sold(fixnum)
+  def number_of_sales
+    # means return the size of array of Sale objects with the same product_id
+    return self.sales.size
+  end
+
+
+end