Article: 10 things you should know about method_missing in Ruby
10 things you should know about method_missing by Max and Amy Newell from ThirdbIT
1. method_missing is a Ruby kernel method and everyone should know about it.
2. Rails implements some of its funkiest magic with method_missing. When you ask your model to find_by_freaky_column_name, and it does so, that’s because ActiveRecord::Base overrides the kernel’s method_missing method.
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