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[kylecrsn]

• Added pagination for users#rentals, users#cars, and users#history
• Styling for pagination
• Added a proper way to keep track of the number cars, rentals as owner, and rentals as renter a user has (this included modifying the data schema of a rental by renaming owner_id to user_id and adding a couple fields to users)
• Added some lightweight css/js magic to randomly color rental headers
• Reorganized seed data by environment
• Changed the minimum password length to 8 characters (seed passwords are now: password)
• Added a validation for usernames to be unique at signup (so you don't get an SQL-level error with username conflicts)
• Reorganized README
• Added a simple user destroy method (will need to add logic for it's relation to cars/rental posts)
• Flash notifications now auto-close themselves after a few seconds

[justinpearson]

It looks like you renamed rental's owner_id to user_id. Why? (It breaks my PR)

[justinpearson]

Very nice work BTW! It's a really slick site.

I think we'll have to work together to merge our mutual work on the seed file structure.

[kylecrsn]

I can explain it more during lec/lab, but rails has a feature called counter_cache which makes getting stats about the count of a model's things practical (ie if you're twitter and you want to display that a user has 30,000 tweets on their profile page, making an sql query like 'Tweets.find(user_id: session[user_id]).count' is impractical). Counter cache does this by

• creating a count in the parent model schema with the child model's name pluralized followed by _count (t.integer :cars_count, default: 0)
• declaring a has_many relationship in the parent of the child (ie in user.rb: has_many :cars)
• declaring a belongs_to relationship in the child with the parent's name and the counter cache flag (ie in car.rb: belongs_to :user, counter_cache: true)

In our existing application, we had that a rental didn't belong to a user (owner), but rather has_one user, through owner id. Using has_one instead of belongs_to made counter cache not usable, so I changed the relationship to allow it.

I tried alternatives before this like aliasing(https://stackoverflow.com/questions/21471075/possible-to-alias-a-belongs-to-association-in-rails, see below) but couldn't get any of them to work.

belongs_to :user
belongs_to :owner, :class_name => :User, :foreign_key => "user_id"