[colug-432] ruby class variable behavior?
richardjhornsby at gmail.com
Tue Jan 12 14:17:26 EST 2016
I'm not sure how class variables, @@, behave in Ruby. I'm using them sparingly. One place I do need to use a class variable is part of an auditing script. I need to load an exceptions file.
It doesn't make sense to try to load it every time an instance of the class is created. That's a lot of extra file i/o, and maybe wasted memory? I'm not entirely sure, however, if what I intend to happen is happening. The script works fine, I'm more wondering about this:
@@audit_exceptions = YAML::load_file('exceptions.yml')
Is the exceptions.yml file loaded each time a new instance of the class is created, and it just overwrites the @@audit_exceptions class variable? Or is it loaded just once the first time myClass.new is invoked?
sidenote: if there is a better way to handle what I'm trying to do, I'm open to suggestions.
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