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31 lines
805 B
Elixir
31 lines
805 B
Elixir
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defmodule LiveBookWeb.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),
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class: "invalid-feedback",
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phx_feedback_for: input_id(form, field)
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)
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end)
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end
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@doc """
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Translates an error message.
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"""
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def translate_error({msg, opts}) do
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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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Enum.reduce(opts, msg, fn {key, value}, acc ->
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String.replace(acc, "%{#{key}}", to_string(value))
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end)
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end
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end
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