<% if @training.training_image image = @training.training_image.attachment.medium width, height = image.dimensions end %> <!DOCTYPE html> <html lang="<%= I18n.locale %>"> <head> <meta charset="utf-8"> <!-- Facebook Open Graph --> <meta property="og:title" content="<%= @training.name %>"/> <meta property="og:description" content="<%= strip_tags(@training.description) %>"/> <% if @training.training_image %> <meta property="og:image" content="<%= root_url+image.url %>"/> <meta property="og:image:width" content="<%= width%>" /> <meta property="og:image:height" content="<%=height%>" /> <% end %> <meta property="fb:app_id" content="<%= Rails.application.secrets.facebook_app_id%>" /> <meta property="og:url" content="<%= root_url+'#!/trainings/'+@training.slug %>" /> <!-- Twitter Cards--> <meta name="twitter:card" content="summary_large_image"> <meta name="twitter:site" content="<%= ENV['TWITTER_NAME'] %>"> <meta name="twitter:title" content="<%= @training.name %>"> <meta name="twitter:description" content="<%= strip_tags(@training.description) %>"> <% if @training.training_image %> <meta name="twitter:image" content="<%= root_url+image.url %>"> <% end %> </head> </html>