Ruby 3.1 introduced an optimization to string interpolation for some
core classes in b08dacfea3.
But since we override `to_s` in some of those core classes to add behavior
like `to_s(:db)`, all Rails applications will not be able to take advantage
of that improvement.
Since we can use the `to_formatted_s` alias for the Rails specific behavior
it is best for us to deprecate the `to_s` core extension and allow Rails
applications to get the proformace improvement.
This commit starts removing all the `to_s(:db)` calls inside the framework
so we can deprecate the core extension in the next commit.
- Fixtures with non-string labels such as integers should be accessed
using integer label as key. For eg. pirates(1) or pirates(42).
- But this results in NotFound error because the label is converted into string before
looking up into the fixtures hash.
- After this commit, the label is converted into string only if its a
symbol.
- This issue was fount out while adding a test case for
https://github.com/rails/rails/commit/7b910917.
Allows fixtures to use their $LABEL as part of a string instead
of limiting use to the entire value.
mark:
first_name: $LABEL
username: $LABEL1973
email: $LABEL@$LABELmail.com
users(:mark).first_name # => mark
users(:mark).username # => mark1973
users(:mark).email # => mark@markmail.com
