On Wednesday, April 29, 2015 at 5:21:05 AM UTC+10, marc fawzi wrote: > Hi, > > > I'm still processing the "revolution in front end architecture" that brought > me here and to Reactive CLojureScript! :) > > > > One part is this whole thing about putting ALL logic outside of the > component/view. > > > I think maybe we need a finer lens (or maybe I'm missing something) > > > > Let's say you have some app-state-driven animations, e.g. launch some > animation when user interacts with your component or ajax callback writes new > data to app state, where would you put the logic that would add/remove CSS > class names from whatever element in your component or that would drive an > animation via code rather than CSS (e.g. style tweening or some canvas > animation) in response to state changes? Why would putting it in the view be > inferior to putting it in a handler? After all, it's very specific for the > component and most likely not resuable for other components (animations are > very tailored instructions) > > > Not really sure why animation logic that simply reacts to app state changes > should be anywhere outside the component. Obviously, the opposite is true for > business logic. > > > Would love any insights about the subject (especially ones that are contrary > to my understanding, so I can understand things better) >
Marc, it depends on how complicated your app is. Cursors work well enough in simple cases. In the reagent meetup you said your app was 200 lines long, in which case that's tiny enough for Cursors to be a fine choice. But as apps get more complicated, Cursors are probably not the right foundation. In my experience, they tend to force control logic into all the wrong places (views), and they don't easily handle the kind of cross-cutting architectural concerns that arise in bigger apps. Daid Nolan comments on this in the 3rd paragraph of the Advanced OM Tutorial https://github.com/omcljs/om/wiki/Advanced-Tutorial Brandom Bloom recently commented here: http://www.brandonbloom.name/blog/2015/04/26/rarely-reversible/ It is even addressed indirectly by Martin Fowler: http://martinfowler.com/bliki/CQRS.html -- Mike -- Note that posts from new members are moderated - please be patient with your first post. --- You received this message because you are subscribed to the Google Groups "ClojureScript" group. To unsubscribe from this group and stop receiving emails from it, send an email to clojurescript+unsubscr...@googlegroups.com. To post to this group, send email to clojurescript@googlegroups.com. Visit this group at http://groups.google.com/group/clojurescript.
