Adam Cooper amcooper

dbc code challenge

rails new
rails generate scaffold User email password_digest
rails generate controller Sessions new create destroy
rails generate scaffold Album title user:references artist:references
rails generate scaffold Artist name
rails generate scaffold Song name album:references
rails generate scaffold Favorite user:references artist:references album:references song:references

Snippet no. 1: the Tweet Controller (Ruby)

Introduction

Lesser Evil (lesser-evil-cli) is a hosted Ruby gem for the command line which applies a third-party, open-source sentiment analysis tool to collect negative-affect tweets regarding the 2016 U.S. Presidential candidates. The user chooses the candidate ("Trump" or "Clinton") and the negativity threshold ("angry" or "very angry").

What does it do?

The fetch_tweets method in the Tweet Controller is the primary engine of the application. It performs the following tasks:

Retrieves a batch of tweets. It calls (line 29) the get_batch method which makes GET requests to the Twitter Search API. The request includes search terms, desired number of results, and the maximum ID (i.e., the most recent ID from which to start the search)
Filters them according to sentiment. The if statement of line 36 tests for sentiment negativity and user-specified intensity
Creates a TweetSlim object from each matched tweet (line 37)
Prints each TweetSli

	# My own scripts
	export PATH="~/bin:$PATH"

	### RBENV
	export PATH="$HOME/.rbenv/bin:$PATH"
	if which rbenv > /dev/null; then eval "$(rbenv init -)"; fi

	alias l='ls -alh'

	export GIT_MERGE_AUTOEDIT=no

	#-------------------------------------------------------------------------------
	# Welcome Prompt
	# prints stats on terminal load
	#-------------------------------------------------------------------------------

	# welcome and unwelcome functions to toggle welcome_prompt are in .bash_prompt
	WELCOME_PROMPT=true

	welcome_msg() {
	echo $(git --version)

	# just add to the .profile or .bash_rc

	# don't set prompt if this is not interactive shell
	[[ $- != i ]] && return

	color_default='\['`tput sgr0`'\]'
	color_red='\['`tput sgr0; tput setaf 1`'\]'
	color_green='\['`tput sgr0; tput setaf 2`'\]'
	color_yellow='\['`tput sgr0; tput setaf 3`'\]'
	color_light_blue='\['`tput sgr0; tput setaf 4`'\]'

	# bash/zsh completion support for core Git.
	#
	# Copyright (C) 2006,2007 Shawn O. Pearce <[email protected]>
	# Conceptually based on gitcompletion (http://gitweb.hawaga.org.uk/).
	# Distributed under the GNU General Public License, version 2.0.
	#
	# The contained completion routines provide support for completing:
	#
	# *) local and remote branch names
	# *) local and remote tag names

	# 256 colors for vim
	set -g default-terminal "screen-256color"

	# Start window numbering at 1
	set-option -g base-index 1
	set-window-option -g pane-base-index 1

	# Cycle panes with C-b C-b
	unbind ^B
	bind ^B select-pane -t :.+

	# Basic Ruby code for launching a command-line MP3 player and playing a file
	command = "afplay fatal_wedding.mp3"
	value = `#{command}`

	" Make backspace behave in a sane manner.
	set backspace=indent,eol,start

	" Switch syntax highlighting on
	syntax enable

	" Enable file type detection and do language-dependent indenting
	filetype plugin indent on

	" Show line numbers

	class Project
	attr_accessor :title

	def slug
	@title.strip.downcase.gsub(/(&\|&)/, ' and ').gsub(/[\s\.\/\\]/, '-').gsub(/[^\w-]/, '').gsub(/[-_]{2,}/, '-').gsub(/^[-_]/, '').gsub(/[-_]$/, '')
	end
	end