Asked Mar 27th, 2:05 PM 95 0 2
  • 95 0 2
-2

Comment với ajax trong rails

Share
  • 95 0 2

Lại phải cần sự giúp đỡ của mọi người. Mình làm chức năng comment sử dụng ajax. Hiện đang lỗi edit. Log của file như này:

Link git của nhánh: https://github.com/BlazingRockStorm/let-us-go/tree/comment-policy Mọi người giúp đỡ với Đây là file

class CommentsController < ApplicationController
  before_action :set_comment, only: [:show, :edit, :update, :destroy]
  after_action :verify_authorized, only: [:destroy]

  # GET /comments
  # GET /comments.json
  def index
    @comments = Comment.all
  end

  # GET /comments/1
  # GET /comments/1.json
  def show
  end

  # GET /comments/new
  def new
    @comment = Comment.new
  end

  # GET /comments/1/edit
  def edit
    # authorize User
    respond_to do |format|          
      format.js {}
    end
  end

  # POST /comments
  # POST /comments.json
  def create
    @comment = Comment.new(comment_params)

    respond_to do |format|
      if @comment.save
        format.html { redirect_to event_path @comment.event, notice: 'Comment was successfully created.' }
        format.js {}
      else
        format.html { render :new }
        format.json { render json: @comment.errors, status: :unprocessable_entity }
      end
    end

    @comment.save
  end

  # PATCH/PUT /comments/1
  # PATCH/PUT /comments/1.json
  def update
    respond_to do |format|
      if @comment.update(comment_params)
        # format.html { redirect_to event_path @comment.event, notice: 'Comment was successfully updated.' }
        format.js {}
      else
        # format.html { render :edit }
        format.js {}
      end
    end
  end

  # DELETE /comments/1
  # DELETE /comments/1.json
  def destroy
    authorize @comment
    @comment.destroy
    respond_to do |format|
      format.html { redirect_to event_path @comment.event }
      format.json { head :no_content }
    end
  end

  private
    # Use callbacks to share common setup or constraints between actions.
    def set_comment
      @comment = Comment.find(params[:id])
    end

    # Never trust parameters from the scary internet, only allow the white list through.
    def comment_params
      params.require(:comment).permit(:user_id, :event_id, :content, :image)
    end
end

routes.rb

resources :events do
    resources :comments
  end

events/show.html.erb

<% if user_signed_in? %>
        <% if current_user.admin? %>
          <%= link_to 'Edit', edit_event_path(@event), :remote => true, :class => "btn btn-primary" %> 
          <%= link_to 'Back', "javascript: history.go(-1)", :class => "btn btn-secondary" %>
        <% else %>

          <%= link_to 'Join', "javascript:void(0)", :class => "btn btn-primary" %> 
          <%= link_to 'Back', "javascript: history.go(-1)", :class => "btn btn-secondary" %>
          <div class="comment-form">
            <%= render partial: "comments/form", locals: { event: @event, comment: @comment } %>
          </div>

        <% end %>
      <% else %>
        <p>Sign in to comment</p>
      <% end %>
      <div class="comments-list">
        <%= render partial: "comments/index",  collection: @event.comments, as: "comment" %>
      </div>

comments/_index.html.erb

<div class="row" id='comment_<%= comment.id %>'>
  <div class="col-md-1"><%= comment.user.name %></div>
  <div class="col-md-6"><%= comment.content %></div>
  <% if user_signed_in? && current_user == comment.user %>  
    <div class="col-md-1">
      <%= link_to 'Edit', edit_event_comment_path(comment.event, comment), class: "btn btn-link", remote: true %>
    </div>
    <div class="col-md-1">
      <%= link_to 'Delete', event_comment_path(comment.event, comment), method: :delete, data: { confirm: 'Are you sure?' }, class: "btn btn-link" %>
    </div>
  <% end %>
</div>

comments/edit.erb.js

$('.comment-form').html("<%= j (render 'comments/form', locals: { event: @event, comment: @comment }) %>");
$('.comment-box').focus();
$('.comment-box').val('.comment-box').val("<%= @comment.content %>");

comments/update.erb.js

$('.comment-form').html("<%= escape_javascript( render partial: "comments/form", 
    locals: { event: @event, comment: @comment } ) %>")
$('.comment-box').val('.comment-box').val('');
$('.comment-box').focus();
$('.comments-list').html('<%= j render "comments/index",
    comments: @event.comments.desc %>').appendTo('.comment-list');

comments/_form.html.erb

<%= form_for [event, comment], html: {class: "form-inline"} do |form| %>
  <% if comment.errors.any? %>
    <div id="error_explanation">
      <h2><%= pluralize(comment.errors.count, "error") %> prohibited this comment from being saved:</h2>

      <ul>
      <% comment.errors.full_messages.each do |message| %>
        <li><%= message %></li>
      <% end %>
      </ul>
    </div>
  <% end %>

  <div class="form-group" style="width:100%">
      <%= form.hidden_field :user_id, value: current_user.id %>
      <%= form.hidden_field :event_id, value: event.id %>
      <%= form.text_area :content, rows: 1, :class => "comment-box form-control", :style=>"width:50%",
          :required => true, :autocomplete => 'off', placeholder: "Comment" %>
          
      <%= form.submit "Comment", id: "reply_submit", class: "btn btn-primary" %>
  </div>

<% end %>

2 ANSWERS


Answered Mar 28th, 1:54 AM
Accepted
-2

Đành lại tự trả lời: Dựa theo link này https://stackoverflow.com/questions/40412109/actionviewtemplateerror-undefined-local-variable-or-method-or-no-error

Lý do mình bị lỗi bên trên là dùng

render 'comments/form', locals: { event: @event, comment: @comment }

Do đó nó cho ra những kết quả khá là ngẫu nhiên dẫn đến việc bị lỗi. Khi sửa thành

render 'comments/form', event: @event, comment: @comment 

Thì mọi thứ lại bình thường

Share
Answered Mar 27th, 2:31 PM
0

@event không thấy có trong controller?

Share
Hoàng Đức Quân @devil_boom_129
Mar 27th, 3:02 PM

https://gist.github.com/spacerobotTR/d77d38ced49224ae11d80ed09aa4ed8b theo hướng dẫn ở đây thì mình cũng có thấy event trong controller đâu

0
| Reply
Share
Kieu Quoc Hung @KieuQuocHung
Mar 27th, 3:22 PM

@devil_boom_129 vì ví dụ này sử dụng @servicerequest thay vì @event như bạn. Đơn giản thì giờ bạn thay thế tất cả các biến @event thành @comment.event xem

0
| Reply
Share
Hoàng Đức Quân @devil_boom_129
Mar 27th, 3:29 PM

@KieuQuocHung cũng ko đc 😦

0
| Reply
Share