Wyskakuje mi błąd :
undefined method `photo’ for 1:Fixnum
Posiadam widok parszal, z którego korzystam w kliku miejscach
_products.html.erb
<% products.each_slice(3) do |slice| %>
<div class="row">
<% slice.each do |product| %>
<div class="col-md-4">
<div class="thumbnail">
<%= link_to product_path(product) do %>
<% image_tag product.photo.url(:thumb) %>
<% end %>
<div class="caption">
<h3><%= link_to Faker::Hacker.noun.titleize, product_path(1) %></h3>
<p><%= simple_format(truncate(Faker::Hacker.say_something_smart, length: 90)) %></p>
<p class="lead"><%= number_to_currency Faker::Number.decimal(2, 2) %></p>
<p>
<%= link_to "#", class: "btn btn-primary" do %>
<span class="fa fa-shopping-cart"></span> Dodaj do koszyka
<% end %>
</p>
</div>
</div>
</div>
<% end %>
</div>
<% end %>
Wygenerowany uploader za pomoca CarrierWawe
product_photo_uploader.rb
class ProductPhotoUploader < CarrierWave::Uploader::Base
include CarrierWave::MiniMagick
storage :file
def store_dir
"uploads/#{model.class.to_s.underscore}/#{mounted_as}/#{model.id}"
end
version :thumb do
process :resize_to_fit => [320, 240]
end
version :details do
process :resize_to_fit => [640, 480]
end
end
modele produktu i kategorii
class Product < ActiveRecord::Base
belongs_to :category
validates :name, presence: true
validates :description, presence: true
validates :price, numericality: { greater_than: 0.0 }
validates :category, presence: true
mount_uploader :photo, ProductPhotoUploader
def to_param
"#{id}-#{name}".parameterize
end
end
class Category < ActiveRecord::Base
has_many :products
validates :name, presence: true
end
Kontroler:
class ProductsController < ApplicationController
def index
@products = Product.order(created_at: :desc).limit(9)
end
def show
@product = Product.find(params[:id])
@category = @product.category
end
end
BazaDanych
ActiveRecord::Schema.define(version: 20170120184859) do
create_table "categories", force: :cascade do |t|
t.string "name", limit: 255
t.datetime "created_at", null: false
t.datetime "updated_at", null: false
end
create_table "products", force: :cascade do |t|
t.string "name", limit: 255
t.text "description", limit: 65535
t.text "long_description", limit: 65535
t.string "photo", limit: 255
t.decimal "price", precision: 10
t.integer "category_id", limit: 4
t.datetime "created_at", null: false
t.datetime "updated_at", null: false
end
add_index "products", ["category_id"], name: "index_products_on_category_id", using: :btree
add_foreign_key "products", "categories"
end
Oraz mam takze seedy ktorymi wypelniam BD
8.times do
Category.create! name: Faker::Hacker.ingverb.capitalize
end
category_ids = Category.pluck(:id)
print "Product "
200.times do
product = Product.create! name: "#{Faker::Hacker.verb} #{Faker::Hacker.noun}".capitalize, # dajemy naze
description: Faker::Hacker.say_something_smart,
long_description: Faker::Lorem.paragraphs(3).join("\n\n"),
category_id: category_ids.sample,
price: Faker::Number.decimal(3, 2)
product.remote_photo_url = Faker::Avatar.image(
product.name.parameterize,
"640x480", # ma miec rozmiar
"jpg", # byc w formacie jpg
"set#{[1, 2, 3].sample}",
"bg#{[1, 2].sample}"
)
product.save
print "."
end
puts
Gemfile wyglada tak:
source 'https://rubygems.org'
gem 'rails', '4.2.5.1'
gem 'mysql2', '>= 0.3.13', '< 0.5'
gem 'sass-rails', '~> 5.0'
gem 'uglifier', '>= 1.3.0'
gem 'coffee-rails', '~> 4.1.0'
gem 'jquery-rails'
gem 'turbolinks'
gem 'jbuilder', '~> 2.0'
gem 'sdoc', '~> 0.4.0', group: :doc
gem 'thor', '~> 0.19.3'
gem 'faker'
gem 'letter_opener'
gem 'carrierwave'
gem 'mini_magick'
gem 'simple_form'
gem 'twitter-bootstrap-rails'
gem 'ransack'
gem 'kaminari'
gem 'rails-i18n'
gem 'statesman'
group :development, :test do
gem 'byebug'
end
group :development do
gem 'web-console', '~> 2.0'
gem 'spring'
end
Routes:
resources :products, only: [:show, :index], path: "produkt"
resources :categories, only: [:show], path: "kategoria"
root to: 'products#index'
Widok index
<h1>Najnowsze produkty</h1>
<%= render partial: 'products', locals: { products: (1..9) } %>
W czym może być problem, ktos coś ?
