Question

I have a view that is accessing attibutes from a model

.<%= @checklist.alt_escape_indicated %>

.<%= @checklist.sign_condition %>

Some of these are going to be booleans that I wanted displayed as ‘Yes” or “No”. I’ve written some code in my model class to do this:

def getter_decorator(attr)
  var = read_attribute(attr)
  if !!var == var
    boolean_as_string(var)
  else
    var
  end
end

def boolean_as_string(bool_type)
    if bool_type
      "Yes"
    else
      "No"
    end
end

So I can just do:
.<%= @checklist.boolean_as_string(@checklist.sign_condition) %>

for attributes I know are boolean or getter_decorator on everything. My question is. Is there a way I can decorate all of my getters so this function is called when I do
@checklist.sign_condition

Answer 1

I’d recommend making this a helper method since it’s solely for presentation. That’ll also make it easier to localize it in the future when your site takes off internationally…

def yn(val)
  val ? "Yes" : "No"
  # localized: I18n.t (val ? "Yes" : "No")
end

And then use it in your view:

<%= yn @checklist.sign_condition %>

However, if you REALLY wanted bools to automatically show up as Yes/No, you could do something like:

class TrueClass
  def to_s
    self ? "Yes" : "No"
  end
end

puts true #-> Yes

I wouldn’t recommend that however 😉