1 files changed, 16 insertions, 0 deletions
diff --git a/lib/matrix_app_service_web/views/error_helpers.ex b/lib/matrix_app_service_web/views/error_helpers.ex
new file mode 100644
index 0000000..4eff422
--- /dev/null
+++ b/lib/matrix_app_service_web/views/error_helpers.ex
@@ -0,0 +1,16 @@
+defmodule MatrixAppServiceWeb.ErrorHelpers do
+  @moduledoc """
+  Conveniences for translating and building error messages.
+  """
+
+  @doc """
+  Translates an error message.
+  """
+  def translate_error({msg, opts}) do
+    # Because the error messages we show in our forms and APIs
+    # are defined inside Ecto, we need to translate them dynamically.
+    Enum.reduce(opts, msg, fn {key, value}, acc ->
+      String.replace(acc, "%{#{key}}", to_string(value))
+    end)
+  end
+end