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author | href <href@random.sh> | 2018-01-31 20:36:42 +0100 |
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committer | href <href@random.sh> | 2018-01-31 20:36:42 +0100 |
commit | fcb2a082346054108f3f16cffe968450cf961976 (patch) | |
tree | 8e7d2eb9eeebf854e62e08c29b147f34dfeb1881 /lib/lsg_web/views/error_helpers.ex |
import
Diffstat (limited to 'lib/lsg_web/views/error_helpers.ex')
-rw-r--r-- | lib/lsg_web/views/error_helpers.ex | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/lib/lsg_web/views/error_helpers.ex b/lib/lsg_web/views/error_helpers.ex new file mode 100644 index 0000000..47906f2 --- /dev/null +++ b/lib/lsg_web/views/error_helpers.ex @@ -0,0 +1,40 @@ +defmodule LSGWeb.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(LSGWeb.Gettext, "errors", msg, msg, count, opts) + else + Gettext.dgettext(LSGWeb.Gettext, "errors", msg, opts) + end + end +end |