rails: From Param: How URL-Based Fetching Ought to Be
From Param will auto-magically save the to_param of your model to the specified parameter column (defaults to “param” but you can set it by calling set_param_column) and then automatically know to find by that column if it exists when from_param is called. This way, all you have to do is define a to_param that will be unique to your record and everything else is handled for you!
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