I am currently going through the Programming Phoenix 1.4 book and so far am really enjoying it. I didn’t think I’d appreciate a lack of ‘magic’ as much as I do. Anyhow, I’m a bit stumped on how one thing works and would appreciate someone pointing me in the direction of where in the Elixir doc’s I …

The source code actually updates all actions to 3 parameters. For some more background https://medium.com/@lostkobrakai/alternative-parameters-for-phoenix-controller-actions-edd2b8a4362a This works: defmodule D3jsDemoWeb.PageController do use D3jsDemoWeb, :controller def action(conn, _) do…

I was simply stating that I couldn’t find any evidence to support this observation: why/how it doesn’t force the other controller actions to have it as an argument. My observation was that customizing the arguments by overriding action/2 forces an update of the parameter list of every action fun…

Wow, thanks ! That’s very helpful to understand what’s going on behind the scenes. No magic.

Elixir Programming Language Forum

Function Adding Args to Controller Actions

Questions & Help Questions

Maartz December 3, 2019, 10:22pm 3

So if I guess it right, it’s related to function clauses ? Right ?