点击编辑并销毁链接后，重定向到帖子posts_path。编辑表单并销毁lonks无效，。
posts_controller.html.erb
class PostsController < ApplicationController
before_action :set_post, only: [:show, :edit, :update, :destroy]
before_action :authenticate_user!, except: [:index, :show]
before_action :correct_user, only: [:edit, :update, :destroy]
# GET /posts
# GET /posts.json
def index
if params[:tag]
@posts = Post.tagged_with(params[:tag])
else
@posts = Post.search(params[:search])
end
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.friendly.find(params[:id])
end
# Never trust parameters from the scary internet, only allow the white list through.
def post_params
params.require(:post).permit(:title, :description, :html, :css, :js, :image, :tag_list, :slug)
end
def correct_user
@post = current_user.posts.find_by(id: params[:id])
redirect_to posts_path, notice: "Not authorized to edit" if @post.nil?
end
end
_form.html.erb
<div class="col-md-6 col-md-offset-3">
<div class="field">
<%= f.text_field :title, class: "form-control", placeholder: "Title" %>
</div><br>
<div class="field">
<%= f.text_field :tag_list, class: "form-control", placeholder: "Tags seperated with commas" %>
</div><br>
<div class="field">
<%= f.file_field :image, as: :file, class: "form-control" %>
</div><br>
<div class="field">
<%= f.label :Description %>
<%= f.cktext_area :description, class: "form-control", placeholder: "preview link" %>
</div><br>
<div class="field">
<%= f.label :html %>
<%= f.cktext_area :html, class: "form-control", placeholder: "preview link" %>
</div><br>
<div class="field">
<%= f.label :css %>
<%= f.cktext_area :css, class: "form-control", placeholder: "download link" %>
</div><br>
<div class="field">
<%= f.label :js %>
<%= f.cktext_area :js, class: "form-control" %>
</div><br>
<div class="actions">
<%= f.submit %>
</div>
</div>
<% end %>
edit.html.erb
<h1>Editing Post</h1>
<%= render 'form' %>
<%= link_to 'Show', @post %> |
<%= link_to 'Back', posts_path %>
show.html.erb
<div class="col-md-8 col-md-offset-2">
<div class="row">
<div>
<strong id="title"><%= @post.title %></strong><br>
<p>Published on <%= @post.created_at.strftime('%F') %></p>
</div><hr>
<div style="border: 2px solid #f1f1f1;">
<%= image_tag @post.image.url(:medium), class: "img-responsive" %>
</div>
<br><br>
<div id="des">
<%= raw @post.description %>
</div>
<div class="">
<ul class="nav nav-tabs">
<li><a class="active" data-toggle="tab" href="#menu1">HTML</a></li>
<li><a data-toggle="tab" href="#menu2">CSS</a></li>
<li><a data-toggle="tab" href="#menu3">JS</a></li>
</ul>
<div class="tab-content" style="overflow: auto; background-color: #f5f5f5;">
<div id="menu1" class="tab-pane active">
<div id="des">
<%= raw @post.html %>
</div>
</div>
<div id="menu2" class="tab-pane fade">
<div id="des">
<%= raw @post.css %>
</div>
</div>
<div id="menu3" class="tab-pane fade">
<div id="des">
<%= raw @post.js %>
</div>
</div>
</div>
</div>
<br>
<div><i class="fa fa-tags"></i> <%= raw @post.tag_list.map { |t| link_to t, tag_path(t)}.join(', ') %></div>
<hr>
<div class="text-center">
<a onclick="javascript:window.open('http://facebook.com/share?text=<%= @post.title %> by Ganesh Raju - &<%= url_for([@post, {only_path: false}]) %>', '_blank', 'width=800, height=500, top=200, left=300');void(0);"><i class="fa fa-lg fa-facebook"></i></a>
<a onclick="javascript:window.open('http://twitter.com/share?text=<%= @post.title %> by @ganesh12gani - &<%= url_for([@post, {only_path: false}]) %>', '_blank', 'width=800, height=500, top=200, left=300');void(0);"><i class="fa fa-lg fa-twitter"></i></a>
<a onclick="javascript:window.open('http://linkedin.com/share?text=<%= @post.title %> by Ganesh Raju - &<%= url_for([@post, {only_path: false}]) %>', '_blank', 'width=800, height=500, top=200, left=300');void(0);"><i class="fa fa-lg fa-linkedin"></i></a>
</div>
<hr>
<div>
<%= render 'disqus' %>
</div>
</div>
<div>
<%= link_to 'Edit', edit_post_path(@post) %> |
<%= link_to 'Back', posts_path %>
<%= link_to 'Destroy', @post, method: :delete, data: { confirm: 'Are you sure?' } %>
</div>
</div>
答案 0 :(得分：0)
在show.html.erb中更改以下行以进行销毁：
<%= link_to 'Destroy', post_path(@post), method: :delete, data: { confirm: 'Are you sure?' } %>
用于编辑：
<%= link_to 'Edit', edit_post_path(@post) %>
resources :posts
class PostsController < ApplicationController
before_action :set_post, only: [:show, :edit, :update, :destroy]
before_action :authenticate_user!, except: [:index, :show]
before_action :correct_user, only: [:edit, :update, :destroy]
...
private
# Use callbacks to share common setup or constraints between actions.
def set_post
@post = Post.friendly.find(params[:id])
end
# Never trust parameters from the scary internet, only allow the white list through.
def post_params
params.require(:post).permit(:title, :description, :html, :css, :js, :image, :tag_list, :slug)
end
def correct_user
#@post = current_user.posts.find_by(id: params[:id])
redirect_to posts_path, notice: "Not authorized to edit" if @post.user.id != current_user.id
end
end