[Rails] late binding

[Fit]

Hello
I'm a final student in Malaysia. i'm doing a research about late
binding(also known as dynamic binding or virtual binding). Right now i need
to identify the requirement that needed to implement late binding technique.
In Ruby on Rails, is there any implementation of late binding technique?if
have, can you elaborate more about late binding(eg:give any example in Ruby
on Rails)? what type of database is needed?,which programming languages is
suitable?, or any other requirement that related to the late binding
implementation.thank you..

best regards,
Fitri Sinan
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