CODEWITHSUNDEEP
javascriptruby-on-railsajax
ImpostorIsAsking
ImpostorIsAsking

Reputation: 73

rendering a partial with object in js.erb file

this is my index/post for rendering a comment

<% @posts = Post.where(user_id: current_user.all_user_ids).order("created_at desc") %>

<%@posts.each do |post| %>
  <div id="comment-action">
    <button id="<%= "#{post.id}" %>"> View comment</button>
    <%= link_to "View Comments", "#post_comments_#{post.id}" %>

    <section class="comments-section" id="post_comments_<%= post.id %>" >
      <br>
      <div id="comments">
        <%= render 'commenters/newsfeedcomment', obj: post  %>
      </div>

      <% if current_user == post.user %>
        <h6 align="right"><%= link_to 'Edit', edit_post_path(post) %></h6>
        <h6 align="right"><%= link_to 'Delete', { :id => post ,:controller => 'posts',:action => 'destroy'} %></h6>
      <% end %>
    </section>                    
  </div>    
<% end %>

now i past a object to my _newsfeedcomment which is obj: post

heres my newsfeedcomment

<% obj.commenters.each do |c| %>
  <li class = 'comments'>
    <br><%= image_tag c.user.profile.avatar.url, size:"50x50" %> 
    <a href="<%= "#{profile_path(c.user.profile)}" %>">
    <%= c.user.profile.firstname + " " + c.user.profile.lastname %></a> : <%=   c.comment %>
    <br><%= time_ago_in_words(c.created_at) %> ago
  </li>

  <% if current_user == c.user %>
    <%= link_to "Delete comment", [c.post, c], method: :delete %>
    <%= link_to "Edit comment", edit_post_commenter_path(c.post, c) %>
  <% end %>
<% end %>

and i want to render my newsfeedcomment again for my ajax 

$('#comments').append("<%= j render(:partial => 'commenters/nesfeedcomment', obj: post) %>");

and this is my error

undefined local variable or method `post' for #<#:0x007f8660e313e8>

i guess rails cant read my object? is there any approach so i can finish my project please someone help me...

heres my controller 

def create
@comment = @post.commenters.create(params[:commenter].permit(:comment))
@comment.user_id = current_user.id
@comment.save

if @comment.save
  respond_to do |format|
  format.html {redirect_to posts_path}
  format.js
  end
else
  redirect_to posts_path
end

end

Upvotes: 0

Views: 1342

Answers (2)

ImpostorIsAsking
ImpostorIsAsking

Reputation: 73

i create another render file just like newsfeedcomment

commenters/commentlist.html.erb

    <li class = 'comments'>
<br><%= image_tag @comment.user.profile.avatar.url, size:"50x50" %> 
<a href="<%= "#{profile_path(@comment.user.profile)}" %>">
<%= @comment.user.profile.firstname + " " + @comment.user.profile.lastname %></a> : <%= @comment.comment %>

<br><%= time_ago_in_words(@comment.created_at) %> ago

<% if current_user == @comment.user %>
        <%= link_to "Delete comment", [@comment.post, @comment], method: :delete %>
        <%= link_to "Edit comment", edit_post_commenter_path(@comment.post, @comment) %>
    <% end %>
</li>

and this is my create.js.erb

var content = "<%= j render(:partial => 'commenters/commentlist', obj: @comment) %>";

var $post = $("#post_comments_<%= @comment.post_id %>");
var $last_comment = $post.find('#comments > li:last');

if ($last_comment.length > 0) {
$last_comment.after(content);
} else { 
var $comments = $post.find('#comments');
$comments.prepend(content)          
}

Upvotes: 0

cedric
cedric

Reputation: 96

<%= render 'commenters/newsfeedcomment', obj: post %>

This code works in index.html because post is just the looped object from @posts

UPDATE: Thanks for updating with your controller. What you'll want to do is to provide a .js format response to your comments_controller's create action.

This can be done by providing a rendered view as app/views/comments/create.js.erb

In the create.js.erb, just have:

$('#comments').append("<%= j render(:partial => 'commenters/nesfeedcomment', obj: @post) %>");

or

$('#comments').append("<%= j render(:partial => 'commenters/nesfeedcomment', obj: @comment.post) %>");

And that is it.

What you were missing is simply the definition of post in your block, because it was not assigned as a variable, and ruby is interpreting it as a call for some method post - hence your error message: undefined local variable or method 'post'.

Upvotes: 1

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