debianize-mobilizon/lib/eventos_web/views/error_helpers.ex
Thomas Citharel 90ceb4f6fe initial commit
Signed-off-by: Thomas Citharel <tcit@tcit.fr>
2017-12-08 09:58:14 +01:00

41 lines
1.2 KiB
Elixir

defmodule EventosWeb.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
Enum.map(Keyword.get_values(form.errors, field), fn (error) ->
content_tag :span, translate_error(error), class: "help-block"
end)
end
@doc """
Translates an error message using gettext.
"""
def translate_error({msg, opts}) do
# Because error messages were defined within Ecto, we must
# call the Gettext module passing our Gettext backend. We
# also use the "errors" domain as translations are placed
# in the errors.po file.
# Ecto will pass the :count keyword if the error message is
# meant to be pluralized.
# On your own code and templates, depending on whether you
# need the message to be pluralized or not, this could be
# written simply as:
#
# dngettext "errors", "1 file", "%{count} files", count
# dgettext "errors", "is invalid"
#
if count = opts[:count] do
Gettext.dngettext(EventosWeb.Gettext, "errors", msg, msg, count, opts)
else
Gettext.dgettext(EventosWeb.Gettext, "errors", msg, opts)
end
end
end