Allow get_currencies_for_select to accept a new parameter that filters allowed currencies

[vraravam]

In my app, I need to only allow certain currencies that are allowed for the user to choose from. I would like the get_currencies_for_select and get_currencies functions to accept an optional parameter, which can be a function that can be used to filter acceptable currencies.

For eg, the way I am currently doing this is:

Enum.filter(CurrencyFormatter.get_currencies_for_select(:names), fn {k, _} -> k =~ ~r/inr|usd|eur/i end)

instead, if the function can be passed into the get_currencies_for_select - that would be ideal.

[smeevil]

Hi @vraravam ,

I've just updated and published version 0.4.4 which contains an option to enable a whitelist for the currencies. You can enable this by updating your app's config using

config :currency_formatter, :whitelist, ["EUR", "GBP", "USD"]

Hope this helps you out, and thanks for the suggestion :D
Gerard.

[vraravam]

Thanks - works like a charm! Only issue now is that your library asks for poisson v3.0.0 - while my codebase is using the older version, so, I have overridden in mix.exs - hopefully nothing breaks