You really need to delete the post? With :limit => 20 in your find is not enought?. If the answer is a double yes, then you should use an ActiveRecord callback (perhaps after_save ActiveRecord::Callbacks)
Regards.
Franco Catena.
The callback would be placed in the post model correct? And that
callback would include code that would find the amount of posts in that
tag if it exists? Then how would I use that in the post controller's
create method? Sorry I'm still trying to grasp MVC 
The callback would be placed in the post model correct?
Yes.
And that callback would include code that would find the amount of posts in that tag if it exists?
Yes.
Then how would I use that in the post controller's create method?
When you call @post.save in the controller the appropiated callbacks in the Post model are called, so you don't need a explicit call to a function or do another thing inside the model.
Regards.
Franco Catena.
Thank you Franco for being so helpful and understanding. I appreciate it.
Hello, I'm trying to create that callback method. Here's what I have so far. post model:
class Post < ActiveRecord::Base after_create :check_posts_per_tag after_create :destroy_oldest_post_of_tag acts_as_taggable #<-- for acts_as_taggable_on_steroids validates_presence_of :body, :title, :tag_list has_many :comments
#...
def destroy_oldest_post_of_tag self.class.first.destroy end
protected #<-- should this be protected? def check_posts_per_tag @inputtag = :tag_list #<-- will this grab the input from the form? @postspertag = post.tag_counts # maybe post.tag.count? if @inputtag.exists? then if @postspertag >= 20 then # delete the oldest post of that tag needs to happen here post.destroy_oldest_post_of_tag end end end end
Does this look pretty close to what I described above? I'm trying to understand whats going on here. The comments in the code include some of my questions. I'm not sure if that's how I grab the input from the form, and I'm also not sure if that's how I would delete the oldest post of the given tag either...
Anyone?
