If you haven't seen those kinds of controller methods, I'm wondering if you've worked on any legacy apps recently? I've yet to see an app with a) more than one or two skilled developers and b) more than a couple of years old that C) didn't exhibit that problem in at least a couple of spots. I don't think this is a Rails problem—its a code discipline problem. If you're fortunate enough to have only worked on solo projects or teams with extraordinary discipline, then I'm jealous! But its definitely a problem that creeps into most codebases sooner or later.
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If you haven't seen those kinds of controller methods, I'm wondering if you've worked on any legacy apps recently? I've yet to see an app with a) more than one or two skilled developers and b) more than a couple of years old that C) didn't exhibit that problem in at least a couple of spots. I don't think this is a Rails problem—its a code discipline problem. If you're fortunate enough to have only worked on solo projects or teams with extraordinary discipline, then I'm jealous! But its definitely a problem that creeps into most codebases sooner or later.