我想显示我的订单,就像上面显示的成分一样。我不明白为什么不是?
帖子:成分嵌套
Onlines:嵌套订单
观看/发布/显示:
<p>
<strong>Title:</strong>
<%= @post.title %>
</p>
<p> Posted by : <%= link_to @post.user.pseudo, profile_path(@post.user.pseudo) %>, <%= time_ago_in_words(@post.created_at) %> ago </p>
<p>
<strong>Image:</strong>
<%= image_tag @post.image.url(:medium) %>
</p>
<p>
<strong>Description:</strong>
<%= @post.description %>
</p>
<div class="btn-group" role="group" aria-label="...">
<%= link_to '- Pusher - ', new_post_online_path(@post), data: { confirm: 'Confirmer la mise en ligne de #{@title}?' }, class: "btn btn-primary " %>
<div class="col-md-12">
<h3>Ingrédients :</h3>
<div id="ingredients">
<ul>
<%- @post.ingredients.each do |ingredient| %>
<li>
<%= ingredient.name %>
</li>
<%end%>
</ul>
</div>
</div>
<br>
<div class="col-md-9">
<h3>Parts :</h3>
<div id="ingredients">
<ul>
<%- @post.onlines.orders.each do |order| %>
<li>
<%= order.id %>
</li>
<%end%>
</ul>
</div>
</div>
<%= link_to 'Patcher', edit_post_online_path(@post, @post.onlines.last), class: "btn btn-warning"%>
</div>
帖子控制器:
class PostsController < ApplicationController
before_action :authenticate_user!
before_action :set_post, only: [:show, :edit, :update, :destroy]
before_action :owned_post, only: [:edit, :update, :destroy]
# GET /posts
# GET /posts.json
def index
@posts = Post.push_posts
end
# GET /posts/1
# GET /posts/1.json
def show
end
# GET /posts/new
def new
@post = current_user.posts.build
end
# GET /posts/1/edit
def edit
end
# POST /posts
# POST /posts.json
def create
@post = current_user.posts.build(post_params)
respond_to do |format|
if @post.save
format.html { redirect_to @post, notice: 'Post was successfully created.' }
format.json { render :show, status: :created, location: @post }
else
format.html { render :new }
format.json { render json: @post.errors, status: :unprocessable_entity }
end
end
end
# PATCH/PUT /posts/1
# PATCH/PUT /posts/1.json
def update
respond_to do |format|
if @post.update(post_params)
format.html { redirect_to @post, notice: 'Post was successfully updated.' }
format.json { render :show, status: :ok, location: @post }
else
format.html { render :edit }
format.json { render json: @post.errors, status: :unprocessable_entity }
end
end
end
# DELETE /posts/1
# DELETE /posts/1.json
def destroy
@post.destroy
respond_to do |format|
format.html { redirect_to posts_url, notice: 'Post was successfully destroyed.' }
format.json { head :no_content }
end
end
private
# Use callbacks to share common setup or constraints between actions.
def set_post
@post = Post.find(params[:id])
end
# Never trust parameters from the scary internet, only allow the white list through.
def post_params
params.require(:post).permit(:user_id, :title, :description, :image, ingredients_attributes: [:id, :name, :_destroy])
end
def owned_post
unless current_user == @post.user
flash[:alert] = "That post doesn't belong to you!"
redirect_to root_path
end
end
def set_online
@onlines = Online.find_by(params[:id])
end
end
在线控制器:
class OnlinesController < ApplicationController
before_action :authenticate_user!
before_action :set_post
before_action :owned_online, only: [:new, :update]
before_action :set_online
def new
@online = current_user.onlines.build
@online.post_id = @post.id
@online.user_id = current_user.id
end
def edit
end
def taked
@online.orders.update(taked: false)
end
def create
if Online.where(post_id: params[:post_id]).any?
@online = Online.where(post_id: params[:post_id]).last.update_attributes(push: false)
end
@online = @post.onlines.create(online_params)
if @online.save
if @online.portion <= 0
@online.update(push: false)
flash[:success] = 'Veuillez indiquer le nombre de parts disponibles '
redirect_to root_path
else
@online.update(pushed_at: Time.zone.now)
@online.update(push: true)
flash[:success] = 'Votre post est en ligne !'
redirect_to root_path
end
else
render 'new'
end
end
def update
if @onlines.update(online_params)
if @online.push == false
if @online.portion <= 0
@online.update(push: false)
flash[:success] = 'Veuillez indiquer le nombre de parts disponibles '
redirect_to root_path
else
@online.update(push: true)
flash[:success] = 'Votre post a bien été pushé !'
redirect_to root_path
end
end
else
@user.errors.full_messages
flash[:error] = @user.errors.full_messages
render :edit
end
end
private
def online_params
params.require(:online).permit(:user_id, :post_id, :prix, :portion, :push, :pushed_at, orders_attributes: [:id, :taked, :taked_at, :taked_by, :validated_at, :validated_by, :_destroy])
end
def owned_online
@post = Post.find(params[:post_id])
unless current_user == @post.user
flash[:alert] = "That post doesn't belong to you!"
redirect_to :back
end
end
def set_post
@post = Post.find_by(params[:post_id])
end
def set_online
@post = Post.find(params[:post_id])
@online = Online.find_by(params[:id])
end
end
模型 在线:
class Online < ActiveRecord::Base
belongs_to :post
belongs_to :user
has_many :orders
accepts_nested_attributes_for :orders, allow_destroy: true
scope :push, ->{ where(push: true).order("pushed_at DESC") }
end
订单:
class Order < ActiveRecord::Base
belongs_to :online
belongs_to :user
end
并发布:
class Post < ActiveRecord::Base
belongs_to :user
has_many :onlines, dependent: :destroy
scope :push_posts, lambda { joins(:onlines).merge(Online.push) }
has_many :ingredients, dependent: :destroy
accepts_nested_attributes_for :ingredients, reject_if: :all_blank, allow_destroy: true
has_many :comments
validates :image, presence: true
has_attached_file :image, styles: { medium: "300x300#"}, default_url: "/images/:style/missing.png"
validates_attachment_content_type :image, content_type: /\Aimage\/.*\Z/
end
所以如果你有上面的解决方案,我会接受它! 谢谢
答案 0 :(得分:0)
您的Post
有很多Online
个。每个Online
都有许多Orders
。因此,您应该在帖子中迭代每个在线的每个订单。
<ul>
<%- @post.onlines.each do |online| %>
<%- online.orders.each do |order| %>
<li>
<%= order.id %>
</li>
<%end%>
<%end%>
</ul>