north_celt
I’m having trouble rendering an Ecto.Enum array field in liveview.
Here’s the offending heex line:
<:item title="Services offered"><%= @facility.services_offered %></:item>
and here’s the line in my schema:
field :services_offered, {:array, Ecto.Enum}, values: [:dance, :swim, :yoga]
and this is the error it gives me:
** (ArgumentError) lists in Phoenix.HTML and templates may only contain integers representing bytes, binaries or other lists, got invalid entry: :dance
stacktrace:
(phoenix_html 3.3.1) lib/phoenix_html/safe.ex:81: Phoenix.HTML.Safe.List.to_iodata/1
(phoenix_html 3.3.1) lib/phoenix_html/safe.ex:49: Phoenix.HTML.Safe.List.to_iodata/1
(parity 0.1.0) lib/myapp_web/live/facility_live/index.ex:68: anonymous fn/3 in MyAppWeb.FacilityLive.Index.render/1
Any pointers here? Googling has gotten me nowhere.
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v0idpwn
You can’t render a list of atoms. You should convert it to something representable. For example:
kokolegorille
or You can try this…
<:item title="Services offered"><%= inspect @facility.services_offered %></:item>north_celt
I get that, but it seems like LiveView automatically renders atoms from enums correctly, as I have a single-select enum type already and it renders fine (without me casting all of the enums to string) It seems like maybe this should be fixed in
Phoenix.Safe?v0idpwn
The problem is not on Phoenix. When you try to interpolate a term,
Kernel.to_string/1is called on the term. The implementation for atom is simplyAtom.to_string/1. The implementation for lists raises the error you’re seeing: elixir/lib/elixir/lib/list.ex at v1.14.4 · elixir-lang/elixir · GitHub.north_celt
It’s happening in
Phoenix.Html.Safe: phoenix_html/lib/phoenix_html/safe.ex at main · phoenixframework/phoenix_html · GitHubI think maybe it could have a line like
but I’m super new to phoenix, so I could be way off!
v0idpwn
You’re actually right, my bad
But the reasoning is the same from List.to_string/1, I guess.
north_celt
Not at all, I appreciate the help!
I created a PR for this here: Add support for lists of atoms by loganmac · Pull Request #422 · phoenixframework/phoenix_html · GitHub
LostKobrakai
I‘d expect lists are not supported by design. The implementation for lists seems to be there to support the structure of iodata/iolists, rather than lists of user provided values.