Added correct grouping by SUM rank
 Added show page for products deleted Asset pipline
Added in app: CART, LINE_ITEM controllers, models, view ( standarted version )
Added Cart with line_items, correct price in line_items, buttons for destroy cart and remove specific item from cart
Added link - to show product in cart, added small navigation bar in top of cart:  Home >> My Cart
Added increase, decrease buttons and AJAX for this button
Added table to style of cart, set up css conection with file
Removed excess action for carts, line_items controller
Rremoved excess line from models
Added style to Cart
Added link to checkout cart, and remove excess html files from "view"
Added orders controller, model, migration and ORDER page
Refactor code, added in form real data
Added associations AND simple validations
Added correct workin create method for Order controller
Added validations for Order
Corrected method "Add_product", remove excess method from controller order
Added javascript validation
Added gem phony_rails
Added phony_rails validation, Mask for this field and errors for email/phone RegExp