Removing field name from validation error message

http://stackoverflow.com/a/40254247/365218

Related to the accepted answer and another answer down the list:

I’m confirming that nanamkim’s fork of custom-err-msg works with Rails 5, and with the locale setup.

You just need to start the locale message with a caret and it shouldn’t display the attribute name in the message.

A model defined as:

class Item < ApplicationRecord
  validates :name, presence: true
end

with the following en.yml:

en:
  activerecord:
    errors:
      models:
        item:
          attributes:
            name:
              blank: "^You can't create an item without a name."

item.errors.full_messages will display:

You can't create an item without a name

instead of the usual

Name You can't create an item without a name

How to create a PORO model and use it in Rails Form Helpers

First off, I’ll start with our use-case:

We have a fairly simple form for an item with some complexity. It would have default values derived from the current_user‘s attributes but would still have the field on its own. Overriding it in Item model feels like overkill (and starts to be a violation of SRP) so we set out to create a PORO model for it. Full code and explanation below the fold.

Continue reading How to create a PORO model and use it in Rails Form Helpers