martinjanda
How add error to @uploads for live_file_input?
I have a form that uses liveview file upload. I would like to check that the user has selected the file and if not, display an error.
In the heex file I use .live_file_input and then display the error in the style:
<%= for err <- upload_errors(@uploads.input_file) do %>
<p class="alert alert-danger"><%= error_to_string(err) %></p>
<% end %>
Is there any way to add a custom error to @uploads? Alternatively, how to show the error if the user has not selected the file?
Thanks
Most Liked
martinjanda
I solved it by adding a custom variable @custom_error and checking if a file is selected during the save event.
In ex:
if Enum.empty?(uploaded_files) do
socket = assign(socket, :custom_errors, ["File must be selected!"])
{:noreply, socket}
else
...
In Heex:
<%= if @custom_errors != [] do %>
<.error :for={msg <- @custom_errors}><%= msg %></.error>
<% end %>
Popular in Questions
Other popular topics
Latest Phoenix Threads
Latest on Elixir Forum
Sponsor Spotlight
Enabling companies to succeed by building software people love.
Categories:
Sub Categories:
Forums
Popular Tags
- #ecto
- #liveview
- #troubleshooting
- #learning-elixir
- #deployment
- #library
- #erlang
- #testing
- #genserver
- #mix
- #absinthe
- #remote-other
- #otp
- #plug
- #how-to-question
- #macros
- #postgres
- #channels
- #elixirconf
- #exunit
- #discussion
- #code-sync
- #javascript
- #podcasts
- #onsite
- #dialyzer
- #docker
- #authentication
- #umbrella
- #full-time-contract
- #podcasts-by-brainlid
- #ecto-query
- #elixir-ls
- #phoenix_html
- #iex
- #blog-post
- #graphql
- #genstage
- #ai
- #websockets
- #supervisor
- #elixirconf-us
- #advent-of-code
- #distillery
- #processes
- #api
- #forms
- #metaprogramming
- #security
- #hex
Our Sponsors
Build Elixir applications with speed and confidence.
Supporting innovation across the BEAM ecosystem.
We build reliable cloud platforms for business-critical systems.
Catch errors, track performance, monitor hosts and more.
Error tracking, logs, uptime, and Just Enough APM. Built for developers.
Develop your skills with books, videos, and courses.
Producing high quality Elixir screencasts since 2017.
Enabling companies to succeed by building software people love.
The team behind Membrane, Popcorn, LiveDebugger. Available for hire.
Courses that'll move you from confusion to "Aha, now I get it!"