trying to automate a task

I'd like to automate a task that requires access to my models. Specifically, I'd like to fetch some rss feeds and then create model objects from them. I initially thought that I could do this with rake, but then I realized that rake doesn't have access to any of the rails environments. Can someone tell me the right approach do doing this?

oh nevermind. I just found an article that describes how to do this: