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75 lines
2.3 KiB
Elixir
75 lines
2.3 KiB
Elixir
defmodule LiveBeatsWeb.ErrorHelpers do
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@moduledoc """
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Conveniences for translating and building error messages.
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"""
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use Phoenix.HTML
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import Phoenix.LiveView
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import Phoenix.LiveView.Helpers
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@doc """
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Generates tag for inlined form input errors.
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"""
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def error_tag(form, field) do
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error(%{errors: form.errors, field: field, input_name: input_name(form, field)})
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end
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def error(%{errors: errors, field: field} = assigns) do
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assigns =
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assigns
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|> assign(:error_values, Keyword.get_values(errors, field))
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|> assign_new(:class, fn -> "" end)
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~H"""
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<%= for error <- @error_values do %>
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<span
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phx-feedback-for={@input_name}
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class={
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"invalid-feedback inline-block pl-2 pr-2 text-sm text-white bg-red-600 rounded-md #{@class}"
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}
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>
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<%= translate_error(error) %>
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</span>
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<% end %>
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<%= if Enum.empty?(@error_values) do %>
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<span class={"invalid-feedback inline-block h-0 #{@class}"}></span>
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<% end %>
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"""
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end
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@doc """
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Translates an error message using gettext.
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"""
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def translate_error({msg, opts}) do
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# When using gettext, we typically pass the strings we want
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# to translate as a static argument:
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#
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# # Translate "is invalid" in the "errors" domain
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# dgettext("errors", "is invalid")
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#
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# # Translate the number of files with plural rules
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# dngettext("errors", "1 file", "%{count} files", count)
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#
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# Because the error messages we show in our forms and APIs
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# are defined inside Ecto, we need to translate them dynamically.
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# This requires us to call the Gettext module passing our gettext
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# backend as first argument.
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#
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# Note we use the "errors" domain, which means translations
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# should be written to the errors.po file. The :count option is
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# set by Ecto and indicates we should also apply plural rules.
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if count = opts[:count] do
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Gettext.dngettext(LiveBeatsWeb.Gettext, "errors", msg, msg, count, opts)
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else
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Gettext.dgettext(LiveBeatsWeb.Gettext, "errors", msg, opts)
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end
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end
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def translate_changeset_errors(changeset) do
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changeset.errors
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|> Enum.map(fn {key, value} -> "#{key} #{translate_error(value)}" end)
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|> Enum.join("\n")
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end
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end
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