Hey friends! A long time quality of life feature we’ve been wanting to add is the ability to refer to to-one relationships in calculations. Since an example is worth a thousand words, lets see how you would have had to refer to `to-one`

related information in a calculation before:

# The old way

## Using a named aggregate

```
aggregates do
# add a `first` aggregate
first :authors_first_name, :authors, :first_name
end
calculations do
# refer to that in a calculation
calculate :some_calculation, :string, expr(authors_first_name ...)
end
```

## Using in-line aggregates

```
# use an in-line first aggregate
calculate :some_calculation, :string, expr(first(author, field: :first_name))
```

# The new way

The old ways will continue to work, but you can now use `to-one`

path relationships directly in your calculations. You can’t use `to-many`

relationships in a calculation, i.e `posts.text`

in a calculation, because *which* post are you referring to?

```
calculate :some_calculation, :string, expr(author.first_name ...)
```

Hopefully this will make writing certain kinds of calculations much simpler