Time - Denisse & Angela #19
Conversation
More customer file
Added model test for customer
…to include video changes
kaidamasaki
left a comment
kaidamasaki
left a comment
There was a problem hiding this comment.
Excellent job! Your code is of extremely high quality and I've really only got minor suggestions for improvement.
| def index | ||
| @customers = Customer.order(:name) | ||
| render json: @customers.to_json( | ||
| :only => [:id, :name, :registered_at, :postal_code, :phone], :methods => [:videos_checked_out_count]), status: :ok |
| validates :name, :address, :city, :state, :postal_code, :phone, presence: true | ||
|
|
||
| def videos_checked_out_count | ||
| return self.rentals.where(returned_on: nil).count |
There was a problem hiding this comment.
I'm impressed that you did all of this with Active Record methods instead of falling back on select and length!
| def valid_availability | ||
| if total_inventory.nil? | ||
| errors.add(:available_inventory, "bad data error") | ||
| end | ||
| end |
There was a problem hiding this comment.
This is redundant with the presence: true for total_inventory.
| belongs_to :video | ||
| belongs_to :customer | ||
|
|
||
| validate :inventory_available, on: :create |
There was a problem hiding this comment.
This could have been replaced with:
| validate :inventory_available, on: :create | |
| validates :available_inventory, numericality: { greater_than: 0 } |
Video Store APIMajor Learning Goals/Code Review
Functional Requirements
Overall Feedback
Comprehension QuestionsThese are just for your learning and aren't something you're graded on:
If you're sorting by something with an index (like the id) this will actually be O(n) because of database optimizations.
The lookup here is going to be O(log(n)) because the find_by has to use the database indexes. (O(log(n)) is very fast though so is not something I would worry about.) Code Style Bonus AwardsWas the code particularly impressive in code style for any of these reasons (or more...?)
|
3 participants
Assignment Submission: Video Store API
Congratulations! You're submitting your assignment. Please reflect on the assignment with these questions.
If you didn't get to the functionality the question is asking about, reply with what you would have done if you had completed it.
Reflection
/customers&/videosendpoints? What does the time complexity depend on? Explain your reasoning.POST /rentals/check-inendpoint? What does the time complexity depend on? Explain your reasoning.