Ruby Problem - interactors.rb
Assume you're working with a codebase that has a bunch of interactor-like classes.
Those classes have an API much like a Proc.
In this magical realm our call methods are pure functions. Design a library
or patch that will allow us to memoize calls to call
Rails/Postgres Problem
Given a colletion of Posts that have and belong to many Categories:
Create a page that displays each category and the first 4 Posts in that category
without any duplicates. Only show Posts with a published_at date <= now
This is a simplified version of a real problem we've solved
We don't expect your version to be this pretty, just plain hypertext is fine
Priors
This is a pretty basic Rails 5.0 / Ruby 2.4 Application.
Database & Data
We expect you to be using Postgres. Setting up the sample data should be pretty straight forward:
- Edit the config/database.yml file with usernames and passwords if you need
rake db:create:allrake db:migraterake db:seed... and you should be all set
Models
Only the minimum model code is included. Feel free to add as you see fit
Test Framework
There is none. This is intentional. Feel free to install and use whatever you like
Other Instruction
Basically, treat this like you're writing a production piece of code.
Have Fun!