Managing SEO tags in rails application

_seo.html.erb

<%# app/views/layouts/shared/_seo.html.erb %>
<%
  title = construct_title(yield(:title))
  description = yield(:description)
  og_image = yield(:og_image)
  url = yield(:url).presence || request.original_url
%>

<title><%= title %></title>
<meta property="og:title" content="<%= title %>">

<% if description.present? %>
  <meta name="description" content="<%= description %>">
  <meta property="og:description" content="<%= description %>" />
<% end %>

<% if og_image.present? %>
  <meta property="og:image" content="<%= og_image %>">
<% end %>

<meta property="og:site_name" content="<%= site_name %>">
<meta property="og:url" content="<%= url %>">
<meta property="og:type" content="website">
<meta property="fb:app_id" content="XYZ">

home.html.erb

<%# any_page.html.erb %>

<%
  seo_title t('seo.pages.home.title')
  seo_description t('seo.pages.home.description')
  og_image 'main.jpg'
%>

...

seo_helper.rb

# app/helpers/seo_helper.rb
module SeoHelper
  def seo_title(title)
    content_for(:title, title)
  end

  def seo_description(description)
    content_for(:description, description)
  end

  def og_image(image)
    content_for(:og_image, image_url("og/#{image}"))
  end

  def construct_title(title)
    [title, site_name].select(&:present?).join(title_separator)
  end

  def site_name
    I18n.t("seo.website.title")
  end

  def title_separator
    I18n.t("seo.website.separator")
  end
end