Module: SocialConstruct::Controller

Extended by:
ActiveSupport::Concern
Included in:
PreviewsController
Defined in:
app/controllers/concerns/social_construct/controller.rb

Instance Method Summary collapse

Instance Method Details

#render(*args) ⇒ Object

Allow using render with social cards



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# File 'app/controllers/concerns/social_construct/controller.rb', line 36

def render(*args)
  return super unless args.first.is_a?(SocialConstruct::BaseCard)

  card = args.first
  options = args.second || {}

  respond_to do |format|
    format.png { send_social_card(card, **options) }
    format.html { render(html: card.render.html_safe, layout: false) }
  end
end

#send_social_card(card, cache_key: nil, expires_in: 7.days, cache_in_development: false) ⇒ Object

Render a social card as PNG with caching support



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# File 'app/controllers/concerns/social_construct/controller.rb', line 10

def send_social_card(card, cache_key: nil, expires_in: 7.days, cache_in_development: false)
  # Build cache key if provided
  if cache_key && (!Rails.env.development? || cache_in_development)
    cache_key = Array(cache_key).join("-") if cache_key.is_a?(Array)

    png_data = Rails.cache.fetch(cache_key, expires_in: expires_in) do
      card.to_png
    end
  else
    png_data = card.to_png
  end

  # Set caching headers
  expires_in(1.day, public: true) unless Rails.env.development?

  send_data(
    png_data,
    type: "image/png",
    disposition: "inline",
    filename: "#{controller_name.singularize}-social-card.png"
  )
rescue => e
  handle_social_card_error(e)
end