my view is:
<%= image_tag ("delete.png") %>
<%= link_to "Delete post?",
{ :controller => "posts", :action => "delete",
:id => @posts.id },
:confirm => "Really delete?" %> |
i've tried to add <% if Posts.exists? %> before this so it would only
display the delete icon if there are posts to delete...
however, this also doesn't work..
full code:
<% if Posts.exists? %>
<%= image_tag ("delete.png") %>
<%= link_to "Delete post?",
{ :controller => "posts", :action => "delete",
:id => @posts.id },
:confirm => "Really delete?" %> |
<% else %>
<%= image_tag ("another_image.png") %>
<% end %>
On 5 Dec, 17:23, Eric <[email protected]> wrote:
> Without seeing your view, I'll guess that you're using "for foo in
> @foo do" ...if you use "@foo.each do |foo|" it should work,
> since .each doesn't return an error on nil like 'for' does.
>
> -eric
>
> On Dec 5, 9:00 am, RubyonRails_newbie <[email protected]>
> wrote:
>
>
>
> > Cool - thank you for that. It makes sense to me now.
>
> > What I now have is this:
>
> > <%= image_tag ("delete.png") %>
> > <%= link_to "Delete post?",
> > { :controller => "posts", :action => "delete",
> > :id => @posts.id },
> > :confirm => "Really delete?" %> |
>
> > This successfully deletes the posts, one at a time until they have all
> > gone. However, once the last post of that user has been deleted, I get
> > an error:
>
> > Called id for nil, which would mistakenly be 4 -- if you really wanted
> > the id of nil, use object_id
>
> > I know this is because it cannot find any posts for that post.id, but
> > is there a good if else statement i can add to it to render the
> > profile page once all have been erased?
>
> > I've looked over it, but am a bit lost..
>
> > THanks again
>
> > On 5 Dec, 16:00, phil <[email protected]> wrote:
>
> > > Sorry forgot to say that in the view that line is inside an iterator:
>
> > > <% for post in @posts %>
> > > <%= link_to image_tag("cross.png"), post, :confirm => 'Are you
> > > sure?', :method => :delete, :title => "Delete this post" %>
> > > <% end %>
>
> > > where @posts is set by:
> > > @posts = Post.all
> > > in the PostsController#index method.
>
> > > On Dec 5, 4:58 pm, phil <[email protected]> wrote:
>
> > > > I don't see where you are actually passing in the id!
>
> > > > We do something like this:
>
> > > > <%= link_to image_tag("cross.png"), post, :confirm => 'Are you
> > > > sure?', :method => :delete, :title => "Delete this post" %>
>
> > > > That gives us an icon to click on and will delete the post by calling
> > > > PostsController#destroy
>
> > > > which looks like:
>
> > > > def destroy
> > > > @post = Post.find(params[:id])
> > > > @post.destroy
>
> > > > respond_to do |format|
> > > > format.html { redirect_to(posts_url) }
> > > > format.xml { head :ok }
> > > > end
> > > > end
>
> > > > On Dec 5, 4:40 pm, RubyonRails_newbie <[email protected]>
> > > > wrote:
>
> > > > > Hello there,
>
> > > > > I am looking to be able to delete posts from within my account page.
>
> > > > > I have a destroy action within the posts controller, which looks like
> > > > > this:
>
> > > > > def destroy
> > > > > @post = Post.find(params[:user_id])
> > > > > @post.destroy
>
> > > > > respond_to do |format|
> > > > > format.html { redirect_to :controller => "profile"}
> > > > > format.xml { head :ok }
> > > > > end
> > > > > end
>
> > > > > And I also have the button which is clicked to delete a post.
>
> > > > > <% form_tag(:controller => "posts", :action => "destroy",
> > > > > :confirm =>
> > > > > 'Are you sure?') do %>
> > > > > <%= submit_tag("Delete") %>
>
> > > > > However - when i click 'delete' I get the following error:
>
> > > > > ActiveRecord::RecordNotFound in PostsController#destroy
>
> > > > > Couldn't find Post without an ID
>
> > > > > I changed '@post = Post.find(params[:user_id])' to only have :id as a
> > > > > param, but that returned with the same issue.
>
> > > > > Can anyone help?
>
> > > > > Many Thanks
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