Oh the conditionals!

0_the_explanation.txt

This example is not my real app, but it's modeled pretty closely to it.

My mom schedules a couple hundred employees at a local warehouse.  In their
system, a worker can earn "points" for being late or missing shifts.  Here
we have a sort of summary screen for my mom, who may need to follow up with
new employees or discipline employees with concerning levels of points.

Questions that arise as I code something like this:
 - Which objects deserve presenters?
 - Should I allow HTML in my presenters?
 - Do partials help or do they actually hide complexity that should be
 - Is this amount of logic ok in a view, if it's tested? (Views are essentially
   methods, right?)

Of course, those kinds of questions make a 2 hour feature take a day...

1_the_model.rb

class Employee < ActiveRecord::Base
  include EmployeeStatus
  
  def hired_on; end
  def received_employee_handbook?; end
  def scheduled_by; end
  def last_worked_on; end
end

2_the_mixin.rb

module EmployeeStatus
  def recently_hired?; end  
  def scheduled?; end
  
  def points_are_concerning?; end
  def deliquent_points; end
end

3_the_supporting_class.rb

class Roster
  attr_accessible :employees
  
  def initialize(employees)
    @employees = employees
  end
end

4_the_controller.rb

class RosterController < ApplicationController
  def index
    @roster = Roster.new(Employees.morning_shift)
  end
end

5_the_view.html.erb

<ul>
<% @roster.employees.each do |employee| %>
  <li>
    <h2><%= employee.full_name %></h2>

    <% if employee.recently_hired? %>
      <p>This employee was hired on <%= employee.hired_on %>
      <% if employee.scheduled? %>
        and was scheduled by <%= employee.scheduled_by %>!</p>
        <%= link_to 'View Shifts', employee_path(employee) %>
      <% else %>
        but still needs to be scheduled.</p>
        <%= link_to 'Schedule now', new_employee_shift_path(employee) %>
      <% end %>
      
      <% unless employee.received_employee_handbook? %>
        <p>Make sure they have a copy of the handbook!</p>
      <% end %>

    <% elsif employee.points_are_concerning? %>
      <p>This employee needs disciplinary action.  They currently have
      <%= pluralize(employee.deliquent_points, 'point') %>.</p>
      <p>Please consult management before scheduling more shifts.</p>

    <% else %>
      <% if employee.scheduled? %>
        This employee is in good standing.  They last worked on <%= employee.last_worked_on %>.
        <%= link_to 'View Shifts', employee_path(employee) %>
      <% else %>
        <p>This employee has never been scheduled.</p>
        <%= link_to 'Schedule now', new_employee_shift_path(employee) %>
      <% end %>
    <% end %>
  </li>
<% end %>
</ul>