ТАК У меня есть это приложение, которое позволяет пользователям заказывать футболки онлайн.
Так выглядит заказ товара: размер рубашки, цвет рубашки, номер телефона, адрес и статус заказа.
Я модифицировал существующий код, чтобы пользователи-администраторы могли изменить статус заказа с «заказано» на «обработано» или «доставлено», выбрав опцию в раскрывающемся списке под статусом заказа.
Прямо сейчас я не уверен, правильно ли я делаю. Выдает ошибку при нажатии на ссылку обновления и подсвечивает код в моем контроллере
ТАК это моя модель
class Micropost < ApplicationRecord
belongs_to :user
default_scope -> { order(created_at: :desc) }
mount_uploader :picture, PictureUploader
validates :user_id, presence: true
validates :shirtSize, presence: true
validates :shirtColor, presence: true
validates :contactAddress, presence: true
validates :contactNumber, presence: true
validate :picture_size
#uncomment picture presence validation in the future
# validates :picture, presence: true
SIZE_LIST = [ " ", "S", "M", "L", "XL" ]
COLOR_LIST = [ " ", "Black", "White", "Gray", "Red", "Green", "Blue", "Navy Blue", "Yellow", "Pink"]
STATUS_LIST = [ "Ordered", "Processing", "Delivered"]
private
# Validates the size of an uploaded picture.
def picture_size
if picture.size > 5.megabytes
errors.add(:picture, "should be less than 5MB")
end
end
end
VIEW
<li id="micropost-<%= micropost.id %>">
<%= link_to gravatar_for(micropost.user, size: 50), micropost.user %>
<span class="user"><%= link_to micropost.user.name, micropost.user %>
</span>
<span class="content">
<%= "#{micropost.shirtSize}, #{micropost.shirtColor}" %>
<% if current_user?(micropost.user) || current_user.admin? %><br/>
<%= "#{micropost.contactNumber} | #{micropost.contactAddress}" %>
<br/>
<h4>Status: <%= micropost.orderStatus %></h4>
<% end %>
//dropdown list for changing order status that is only available for admin users
<% if current_user.admin? %><br/>
<%= form_for(@micropost) do |f| %>
<div class="field">
<%= f.select :orderStatus, Micropost::STATUS_LIST %>
<%= link_to "Update", micropost, method: :patch %>
</div>
<% end %>
<% end %>
</span>
<span class="timestamp">
Posted <%= time_ago_in_words(micropost.created_at) %> ago.
<% if current_user?(micropost.user) && micropost.orderStatus == "Ordered" %>
<%= link_to "Cancel", micropost, method: :delete,
data: { confirm: "You sure?" } %>
<% end %>
</span>
<span class="content">
<%= image_tag micropost.picture.url if micropost.picture? %>
</span>
</li>
CONTROLLER
class MicropostsController < ApplicationController
before_action :logged_in_user, only: [:create, :destroy, :update]
before_action :correct_user, only: :destroy
before_action :admin_user, only: :update
def create
@micropost = current_user.microposts.build(micropost_params)
if @micropost.save
flash[:success] = "Design Posted!"
redirect_to root_url
else
@feed_items = []
render 'static_pages/home'
end
end
def destroy
@micropost.destroy
flash[:success] = "Design deleted"
redirect_to request.referrer || root_url
end
def update
@micropost = Micropost.find(params[:id])
if @micropost.update(update_micropost_params)
flash[:success] = "Micropost updated"
redirect_to @micropost
else
flash[:error] = 'There was a problem updating this micropost'
render :edit
end
end
private
def micropost_params
defaults = { orderStatus: 'Ordered' }
params.require(:micropost).permit(:shirtSize, :shirtColor, :contactNumber, :contactAddress, :picture).merge(defaults)
end
def update_micropost_params
params.require(:micropost).permit(:shirtSize, :shirtColor, :contactNumber, :contactAddress, :picture, :orderStatus)
end
def correct_user
@micropost = current_user.microposts.find_by(id: params[:id])
redirect_to root_url if @micropost.nil?
end
# Confirms an admin user.
def admin_user
redirect_to(root_url) unless current_user.admin?
end
end
МАРШРУТЫ
Rails.application.routes.draw do
root 'static_pages#home'
get '/help', to: 'static_pages#help'
get '/about', to: 'static_pages#about'
get '/contact', to: 'static_pages#contact'
get '/signup', to: 'users#new'
get '/login', to: 'sessions#new'
post '/login', to: 'sessions#create'
delete '/logout', to: 'sessions#destroy'
resources :users do
member do
get :following, :followers
end
end
resources :account_activations, only: [:edit]
resources :password_resets, only: [:new, :create, :edit, :update]
resources :microposts, only: [:create, :destroy, :update]
resources :relationships, only: [:create, :destroy]
end