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