Question

I am very new to Ruby on Rails so apologies, as this may be a silly question to post here.

I have made a blog (using generate scaffold). I have a few pages to interact and edit blog posts, starting with a main page which displays all blog posts ("index"), an area to view a specific blog post ("show"), and area to edit a blog post ("edit"), and an area to create a new blog post ("new").
I’ve also created comments (again using generate scaffold) to be applied to relevant blog posts. Comments, and a partial form for comments appears on the "show" page.

I have been working away on the whole thing to get it working nicely, but have recently realised that delete buttons that I had on the "index" page aren’t working. Instead of prompting confirmation for the delete, I’m simply taken to the "show" of the relevant post.

Here is a snippet of the index "index" page:

<% @posts.each do |post| %>
<tr>
<td><%= post.title %></td>
<td><%= post.content %></td>
<td><%= image_tag "work/thumbnails/#{post.image}", :alt => '' %></td>
<td><%= time_ago_in_words(post.created_at) %> ago (<%= post.created_at %>)</td>
<td class="zero-out"><%= link_to 'Show', post, :class => "submit-button" %></td>
<td class="zero-out"><%= link_to 'Edit', edit_post_path(post), :class => "submit-button" %></td>
<td class="zero-out"><%= link_to 'Destroy', post, confirm: 'Are you sure?', :method => :delete, :class => "submit-button" %></td>
</tr>
<% end %>

And here is the snippet of code from the posts_controller relevant to the delete:

def destroy
@post = Post.find(params[:id])
@post.destroy

respond_to do |format|
  format.html { redirect_to posts_url }
  format.json { head :ok }
end
end

I have also found that the remove comment buttons (on the "show" page alongside each comment) have stopped working with an error message:

Unknown action

The action ‘show’ could not be found for CommentsController

For reference the code for the "remove comment" button is:

<%= link_to 'Remove Comment', [comment.post, comment],
    :confirm => 'Are you sure?',
    :method => :delete %>

And the snippet of code in the comments_controller is:

def destroy
@post = Post.find(params[:post_id])
@comment = @post.comments.find(params[:id])
@comment.destroy
redirect_to post_path(@post)
end

I lack the full knowledge of how RoR works, and how these files interact with each other fully to troubleshoot the problem, so any help would be very much appreciated.

Answer 1

I’ve found the problem – I had customised the links to stylesheets, javascript files etc and in doing this I had left out links to the javascript files for posts and comments created by the scaffold.

After including links to these files everything worked again.