Want a nice scalable way to produce breadcrumb schema mark up in a Rails app? Here you go! Just customize the base and pass it a hash, and you'll get compliant Schema for Google to use nice Bread Crumbs in your urls.

_bread-crumb-schema.html.erb

<%#
#  Want to add fancy Bread Crumbs to your search results page?
#  https://developers.google.com/search/docs/data-types/breadcrumb

#  Here's a simple layout I made to make this easy to apply across all search engine findable content. 
  
#  Just use this in the bottom of your show page or index pages/views.

#  To use this, just pass in an array of hashes, each hash with {name: , slug: }.

#  Each tier of slug should contain the full uri with no leading slash, instead of just the object's slug.
#  Examples:
#  yourwebsite.com/                                use: path = nil
#  yourwebsite.com/blog                            use: path = {obj: path = [{name: 'Blog', slug: 'blog'} ]}
#  yourwebsite.com/blog/post-about-something       use: path = {obj: path = [{name: 'Blog', slug: 'blog'},{name: @post.title, slug: 'blog/' + @post.slug }]}


#  # This will produce a single breadcrumb for your home page.
#  render ('schema-path'), obj: paths = nil  

#  # This will produce a 2 tier breadcrumb for your blog page. 
#  render ('schema-path'), obj: paths = [ { name: 'Our Blog Posts', slug: 'blog' } ] 

#  # Use the view instances variables
#  render ('schema-path'), obj: paths = [ { name: 'Our Blog Posts', slug: 'blog' }, { name: @post.title, slug: 'blog/' + @post.slug} ] }

# There are no limits to the depth of the bread crumbs, but I suggest keeping you're public url structure under 4 tiers when possible. 
-%>
<script type="application/ld+json">
{
"@context": "https://schema.org",
"@type": "BreadcrumbList",
  "itemListElement": [{
    "@type": "ListItem",
    "position": 1,
    "name": "Crimson Knight Studios",
    "item": "https://www.crimsonknightstudios.com/"
  }<%- unless obj.nil? -%><%- obj.each_with_index do |path, index| -%>
      ,{
        "@type": "ListItem",
        "position": <%= index+2 -%>,
        "name": "<%= path[:name] -%>",
        "item": "https://www.crimsonknightstudios.com/<%= path[:slug] -%>"
        <%- if obj.length-1 == index || obj.nil? -%>
        }]
        <%- else -%>
        }
        <%- end -%>
      <%- end -%>
      <%- else -%>
      ]
    <%- end -%>
}
</script>