attr_reader and attr_writer
Doing a code review, I ran across another use of
seen it many times before, but never really stopped to think about
how it works and what it does.
In the case I was dealing with, a Class was created to generate an
sql query. I quite like the approach because
it feels well encapsulated. The
attr_reader in this case gives access
elsewhere to be able to read a specific instance variable, the resulting
attr_writer, as I understand, works in much the same way,
just allowing writing to an instance variable in a different class.
I can see how this will be useful for pulling apart code into more specific modules.