Added comments to clearify methods

app/controllers/customers_controller.rb

@@ -35,14 +35,20 @@ class CustomersController < ApplicationController
 
   autocomplete :customer, :name, :full => true, :extra_data => [:id]
 
+  # getter method for a customer's vehicles
+  # TODO: move into customer model
   def filter_vehicles_by_customer
     @filtered_vehicles = Vehicle.all.where(customer_id: params[:selected_customer])
   end
 
+  # getter method for a customer's invoices
+  # TODO: move into customer model
   def filter_invoices_by_customer
     @filtered_invoices = QboInvoice.all.where(customer_id: params[:selected_customer])
   end
 
+  # getter method for a customer's estimates
+  # TODO: move into customer model
   def filter_estimates_by_customer
     @filtered_estimates = QboEstimate.all.where(customer_id: params[:selected_customer])
   end
@@ -57,10 +63,12 @@ class CustomersController < ApplicationController
     end
   end
 
+  # initialize a new customer
   def new
     @customer = Customer.new
   end
 
+  # create a new customer
   def create
     @customer = Customer.new(params[:customer])
     if @customer.save
@@ -108,6 +116,7 @@ class CustomersController < ApplicationController
     end
   end
 
+  # delete a customer
   def destroy
     begin
       Customer.find_by_id(params[:id]).destroy
@@ -118,7 +127,7 @@ class CustomersController < ApplicationController
     end
   end
 
-  # Customer view for an issue
+  # displays an issue for a customer with a provided security CustomerToken
   def view
 
     User.current = User.find_by lastname: 'Anonymous'
@@ -153,14 +162,18 @@ class CustomersController < ApplicationController
 
   private
 
+  # redmine permission - add customers
   def add_customer
     global_check_permission(:add_customers)
   end
 
+  # redmine permission - view customers
   def view_customer
     global_check_permission(:view_customers)
   end
 
+  # checks to see if there is only one item  in an array
+  # @return true if array only has one item
   def only_one_non_zero?( array )
     found_non_zero = false
     array.each do |val|