Prices

diff.rb

#app/models/product.rb
class Product < ActiveRecord::Base
  belongs_to :category
  has_many :prices, dependent: :destroy

  has_many :promotion_products
  has_many :promotions, through: :promotion_products


  attr_accessible :name, :details, :category_id, :picture, :picture_cache, :prices_attributes

  validates :name, :details, :category, presence: {message: "trebuie completat"}
  validates :prices, presence: true, associated: true

  accepts_nested_attributes_for :prices, allow_destroy: true

  scope :active, -> { joins(:category).where("categories.active IS TRUE AND  products.active IS TRUE") }

  mount_uploader :picture, PictureUploader

  include Authority::Abilities
  self.authorizer_name = "RestaurantEntityAuthorizer"

  RESPOND_OPTIONS = {
    except: [:picture],
    methods: [:picture_url],
    include: {
      prices: {
        except: [:product_id, :cents], methods: [:price]
      }
    }
  }

  def restaurant
    category.restaurant
  end

  def picture_url
    "#{picture.url}"
  end

end


#app/models/price.rb
class Price < ActiveRecord::Base
  belongs_to :product
  attr_accessible :price, :name, :cents, :quantity, :size
  validates :price, presence: true, numericality: {greater_than: 0}

  validates :name, presence: true

  def price
    cents / 100.00 if cents
  end

  def price=(value)
    self.cents = value.to_d * 100
  end
end


 app/models/price.rb
class Price < ActiveRecord::Base
  belongs_to :product
  attr_accessible :price, :name, :cents, :quantity, :size
  validates :price, presence: true, numericality: {greater_than: 0}

  validates :name, presence: true

  def price
    cents / 100.00 if cents
  end

  def price=(value)
    self.cents = value.to_d * 100
  end
end


# Asa-mi apare cand dau cu product find
##<Product id: 2, name: "Orez Bob Mare Atifco 1kg", details: "eqweq", picture: nil, category_id: 1, active: true, rank: 0>
#lib/tasks/diana.rake
# aici sunt mai multe incercari clar nu e bine aici.
# ce ar trebui sa fac e sa caut dintr-un csv dupa nume, si sa fac update la pret articolului. am incercat cu product.update_attributes, doar ca nu am reusit sa construiesc ce are nevoie
# in ambele instante Price.where(product_id: product['id']).first! si Restaurant.where(id: 1).first.products.includes(:category) nu imi ia prices, am incercat si cu includes(:prices) si tot nu a mers
namespace :tasks do
    require 'csv'

    desc "update diana supermaket prices"
    task :update_prices => :environment do |t, arg|
        diana_files =['/tmp/diana.csv']
	rest = Restaurant.where(id: 1).first.products.includes(:category)
        diana_files.each do |file|
            CSV.foreach(file,:headers => true) do |row|
                name = row.to_hash['den_food']
                price = row.to_hash['pret_nou']
		rest.each do |product|
			if product['name'] == name
				prod = Price.where(product_id: product['id']).first!
				pp prod
                		pp  name + " => " + price
				price = price * 100
				pp price
				if prod.update_attributes(price)
					pp "Everything was good #{product.inspect}"
    				else
      				  	pp "Something went wrong #{row.to_hash}"
				end
			end
		end
		#User.create(id: id,gender: gender,age: age)
#{"name"=>"Orez Bob Mare Atifco 1kg", "details"=>"Orez Bob Mare Atifco 1kg", "category_id"=>"1", "picture_cache"=>"", "prices_attributes"=>{"0"=>{"name"=>"Orez Bob Mare Atifco 1kg", "price"=>"5.0", "quantity"=>"", "size"=>"", "_destroy"=>"false", "id"=>"4"}}}
            end
        end
    end
end