brightin/brightcontent

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core/app/helpers/brightcontent/application_helper.rb

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module Brightcontent
  module ApplicationHelper
    def avatar_url(user)
      gravatar_id = Digest::MD5.hexdigest(user.email.downcase)
      "https://gravatar.com/avatar/#{gravatar_id}.png?s=30&d=mm"
    end
  end
end