Rails views are not meant to have a ton of logic, local variables and 3 or 4 levels of if/else nesting. That's what presenters, view models and assorted other patterns are for. Or helpers, if you really have to.

Yes, this codebase is so packed with legacy it still runs Rails 2.3, and there's no plans to upgrade it, but that's no excuse to keep writing code like it's 2008. MVC does not mean all code must fit in a model, a view or a controller, ffs.