projects.rb

# Customizing the form
form do |f|
  f.inputs "Customer" do
    f.input :user, :as => :select, :collection => User.find(:all, :order => "created_at ASC").map{ |u| [u.email, u.id] }
  end
  f.inputs do
    f.input :category, :as => :select, :collection => Project.category_collection
    f.input :status, :as => :select, :collection => Project.status_collection
    f.input :due_date
  end
  f.inputs "Order Details" do
    f.has_many :orders do |i|
      i.input :tax, :label => "Timeframe", :as => :select, :collection => Order.timeframe_collection
      i.has_many :sales_products do |i|
        i.input :product_id, :as => :select, :collection => Product.where(:status => 0).map {|p| [p.title, p.id]}
        i.input :quantity
      end
    end
  end
  f.inputs "Assign to" do
    f.has_many :assignments do |i|
      i.input :_destroy, :as => :boolean, :label => "Delete this item" unless i.object.object_id.nil?
      i.input :employee_id, :as => :select, :collection => Employee.find(:all).map {|e| [e.user.email, e.id]}
    end
  end
  f.buttons
end
# {
#     "utf8" = >"✓",
#     "authenticity_token" = >"ouXNPnL/mVfmsBkB6hg0UQF3EUAA0oO4TF3QGiRJP4M=",
#     "project" = >{
#         "user_id" = >"77",
#         "category" = >"0",
#         "status" = >"0",
#         "due_date(1i)" = >"2010",
#         "due_date(2i)" = >"9",
#         "due_date(3i)" = >"16",
#         "due_date(4i)" = >"18",
#         "due_date(5i)" = >"25",
#         "orders_attributes" = >{
#             "1322935587045" = >{
#                 "tax" = >"1"
#             },
#             "1322935589001" = >{
#                 "sales_products_attributes" = >{
#                     "1322935589001" = >{
#                         "product_id" = >"2",
#                         "quantity" = >"1"
#                     }
#                 }
#             }
#         }
#     },
#     "commit" = >"Create Project"
# }