Leaves - Mariya

[M-Burr]

Grocery Store

Congratulations! You're submitting your assignment.

Comprehension Questions

Question	Response
What is accomplished with raise ArgumentError?	To alert the user or programmer that that something is wrong.
Why do you think we made the .all & .find methods class methods? Why not instance methods?	So we can search for specific orders or customers across the class (ie., all the orders/customers). Instance methods would only give us access to information about that specific instance of a customer or order.
Think about the relation between Order and Customer. Is this relation one-to-one, one-to-many, or something else? How does that compare to the Solar System project?	It is a one to many relation (one customer has many orders). The solar system was also one to many (one solar system for many planets).
How is the relation between Order and Customer tracked in the CSV file? How is it tracked in your program? Why might these be different?	In the order CSV, customer is tracked using a customer id. In the program, order tracks customers by customer instances (which contain all the information about the customer).
Did the presence of automated tests change the way you thought about the problem? How?	In some ways it made it more difficult and I ran into errors (e.g., not using the same variable names as the test), but it also helped me feel more confident about the final result of my code.

[beccaelenzil]

This looks good! In case you want something shorter that does exactly what you implemented, you might want to check out: https://ruby-doc.org/core-2.6.1/Enumerable.html#method-i-find

[beccaelenzil]

It might be nice to give a name to the value 101, like non_extant_order_id = 101

[beccaelenzil]

Grocery Store

What We're Looking For

Feature	Feedback
Baseline
Answered comprehension questions	check -- great, on point responses
Used Git Regularly	It would be good to have more few meaningful commits.
Wave 1
All provided tests pass	check
Using the appropriate attr_ for instance variables	check
Wave 2
All stubbed tests are implemented fully and pass	check
Used CSV library only in .all (not in .find)
Appropriately parses the product data from CSV file in Order.all	check
Order.all calls Customer.find to set up the composition relation	check
Additional Notes	Good job overall! Your code is well-organized and easy to read, and does a good job of solving the problem at hand. I've left a few inline comments for you to review, but it's clear that the learning goals for this assignment were met. Keep up the hard work!