livebook/lib/livebook_web/views/error_helpers.ex

29 lines
824 B
Elixir

defmodule LivebookWeb.ErrorHelpers do
@moduledoc """
Conveniences for translating and building error messages.
"""
use Phoenix.HTML
@doc """
Generates tag for inlined form input errors.
"""
def error_tag(form, field) do
for error <- Keyword.get_values(form.errors, field) do
content_tag(:span, translate_error(error),
class: "invalid-feedback text-red-600",
phx_feedback_for: input_name(form, field)
)
end
end
@doc """
Translates an error message.
"""
def translate_error({msg, opts}) do
# Because the error messages we show in our forms and APIs
# are defined inside Ecto, we need to translate them dynamically.
Enum.reduce(opts, msg, fn {key, value}, acc ->
String.replace(acc, "%{#{key}}", fn _ -> to_string(value) end)
end)
end
end