Zesky665
Hi everyone,
I’m going through the tutorial for drab and got to the case example. After copying the code from the example to my own files, I ran iex -S mix phx.server and visited localhost. When I clicked the uppercase button, I got the following error :
[error] Drab Handler failed with the following exception:
** (Protocol.UndefinedError) protocol Enumerable not implemented for nil. This protocol is implemented for: DBConnection.PrepareStream, DBConnection.Stream, Date.Range, Ecto.Adapters.SQL.Stream, File.Stream, Floki.HTMLTree, Function, GenEvent.Stream, HashDict, HashSet, IO.Stream, List, Map, MapSet, Postgrex.Stream, Range,Stream
(elixir) lib/enum.ex:1: Enumerable.impl_for!/1
(elixir) lib/enum.ex:141: Enumerable.reduce/3
(elixir) lib/enum.ex:1919: Enum.reduce/3
(drab) lib/drab/live.ex:968: Drab.Live.decrypted_assigns/1
(drab) lib/drab/live.ex:958: Drab.Live.decrypted_from_browser/1
(drab) lib/drab/live.ex:918: Drab.Live.assigns_and_nodrab/1
(drab) lib/drab/live.ex:574: Drab.Live.do_poke/5
(drab) lib/drab.ex:359: anonymous fn/7 in Drab.handle_event/6
Anyone have any idea what this is and how to fix it?
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grych
I looks like Drab can’t see your assigns. Can you ensure that you’ve changed your template extension to .drab?
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Zesky665
index.html.drab was the answer.
grych
There are two types of standard payload sent from the client to to handler - information about the sender, so the object on which the event was launched, and internal data, specific to the used module - like, in this example,
drab_indexwhich is used byDrab.Live.Considering this,
exec_elixirshould send the module-specific data. This is what I would expect. So I will update it, as Add module-specific payload when calling exec_elixir() · Issue #174 · grych/drab · GitHubgrych
I believe I’ve fixed this issue, now module-specific assigns are being added to assigns. Expect the fix in 0.10.0, coming very soon (maybe today?)