Sales Engine intro for SE2

sales_engine.md

Sales Engine

Due

3pm on Tuesday, May 12th

Pairs

• Ricky & Rob
• Michael & Dave
• Margarett & Eugene
• Lev & Vanessa

What is it?

• Explain what the concept is (not how to divide up the work)

• http://tutorials.jumpstartlab.com/projects/sales_engine.html

• http://tutorials.jumpstartlab.com/images/sales_engine.png

• Have them

  • Read the assignment
  • Re-read the assignment and make notes/highlights
  • Discuss each person's schedule constraints
  • Make a plan for what hours/days you're going to work
  • Discuss your personal learning goals and what you're looking to get better at
  • Setup your repo on both machines
  • create some waffle tasks (or github issues)
  • look, y'all, don't go planning the whole thing out today, you'll be wrong

• Rachel: "business logic is worth paying attn to"

• Example of how I should be able to use your code:

  engine = SalesEngine.new('csvs')
  engine.startup
  
  # Customers
  repo = engine.customer_repository
  repo.class # => CustomerRepository
  
  customer = repo.find_by_first_name("Mariah")
  customer.class # => Customer
  customer.name  # => "Mariah"
  customer.id    # => 3
  
  
  customer = repo.find_by_id(3)
  customer.name # => "Mariah"
  
  # Invoices
  repo = engine.invoice_repository
  repo # => InvoiceRepository
  
  invoice = repo.find_by_id(10)
  invoice.class       # => Invoice
  invoice.merchant_id # => 86
  invoice.customer_id # => 3
  
  customer = invoice.customer
  customer.class # => Customer
  customer.name  # => "Mariah"
  
  customer.invoices.class       # => Array (or InvoiceRepository)
  customer.invoices.first.class # => Invoice