Rails Project-Blogger Problem

Ran into my first challenge with the blogger today. I was creating a new model for a Comment feature and I typed:

$ bin/rails generate model Comment author_name:string body:text articles:references

That single red letter cost me an hour of struggle (I mean 'learning'). The extra s created a database schema containing something called 'articles_id'. 

Since id is a property of a single article, the comment controller couldn't find an id  for articles,  as it didn't exist. 

I looked at the Comment model file and saw the extra s almost immediately after trying to enter a comment. But then I couldn't reverse the error.

Rolling back the migration (rake db:rollback), had no effect on the schema. 

Destroying the model (rails destroy model Comment) had no effect on the schema.

In the end I replaced the my local files with the Github repo contents (luckily I had just done a push).

git fetch --all
git reset --hard origin/master

THEN, I recreated the correct  model, ran the migration and reset the database

(rake db:reset).

Unfortunately, this meant I lost the five beautifully written articles I had stored in the first database. Perhaps I didn't need that db:reset?