Question

When I go to delete a post I keep receiving an error that says

undefined method `destroy’ for “Tech”:String

The “tech” part of the posts varies with whatever the tag is of the post I am trying to delete. I am not sure what the problem is. I am using acts_as_taggable_on if that has anything to do with it.

This is my destroy method in my posts controller:

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

     respond_to do |format|
       format.html { redirect_to(root_path) }
       format.xml  { head :ok }
       format.json { head :ok }
     end
   end

The delete button in my post show:

  <%= button_to 'Delete', @post, :method => :delete, :confirm => "Are you sure?" %>

Tags are saved in the database as a string.

Answer 1

It’s impossible to give you an answer to fix your problem, because you are giving no code and no examples.

Nonetheless that error means you are calling the destroy method on a string, and strings in Ruby do not have a destroy method defined.

Check where are you calling destroy, because it seems you are doing it in some function that returns a string (a tag name in your case). You must do it on an object that is an instance of the Tag class.