Help!

I gave a column the wrong name. Now what?
Create a migration to fix the error. Migrations need names; substitute a reasonable name such as "rename x to y" in the following:
```
        rails generate migration name
```
Then edit the generated migration file and add a line
```
        rename_column :table, :old_column, :new_column
```
where the table and columns are filled in as appropriate. rake db:migrate and your database is good to go.

If having difficulty calling functions, the function may be part of a class. Try adding @ in front; for example, call @myfun() rather than myfun().