lucasmedeirosleite

require 'rspec'

class Flattener
  def initialize(array)
    raise 'An Array must be passed' unless array.kind_of? Array
    @array = array
  end

  def flatten
    do_flatten(@array)

lucasmedeirosleite

class Array
  def sequential_search(element)
    each do |e|
      return e if e == element
    end

    nil
  end

  def binary_search(element)

lucasmedeirosleite

module Service
  extend ActiveSupport::Concern

  included do
    def self.call(*args)
      new.call(*args)
    end
    
    def call
      raise '#call method not implemented'

lucasmedeirosleite

class CommentsController < ApplicationController
  def create
    @post = Post.find(params[:post_id])
    @comment = @post.comments.build(comment_params)
    @comment.user_id = current_user.id if current_user
    
    if @comment.save
      StatusWorker.perform_aync(@comment.id)
      NotifyChannelsWorker.perform_async(@comment.id)
      AuthorMailer.notify_mail(@post.author.id).deliver_later

lucasmedeirosleite

class Product < ActiveRecord::Base

  has_many :orders
  validates :name, presence: true
  validates :stock_level, presence: true
  validates :min_stock_level, presence: true
  
  before_validation :strip_name
  before_save :notify_if_low_on_stock
  after_save :notify_product_created