Active Storage blob redirect refresher

lib/tasks/refresh_blob_urls.rake

@@ -0,0 +1,31 @@
+desc "Refresh active storage blob URLs in markdown"
+task :refresh_blob_urls => :environment do
+  puts "Refreshing blob urls due to signed_id change..."
+  mm_ids = ActiveStorage::Attachment.where(name: 'images').pluck(:record_id).uniq
+  total = mm_ids.count
+  i = 0
+  replaced = 0
+  missing_imgs = []
+  Chewy.strategy(:atomic) do
+    mm_ids.each do |mid|
+      puts "Processing item #{i} of #{total}" if i % 50 == 0
+      m = Manifestation.find(mid)
+      m.markdown = m.markdown.gsub(/!\[.*?\]\(\/rails\/active_storage\/blobs\/.*\/(.*)\)/) do |match|
+        img = m.images.joins(:blob).where(blob: {filename: $1}).first
+        if img.present?
+          replaced += 1
+          "![#{$1}](#{Rails.application.routes.url_helpers.url_for(img).gsub('https://benyehuda.org','')})"
+          # Rails.application.routes.url_helpers.rails_blob_path(img, only_path: true)
+        else
+          puts "missing image in mid #{mid}"
+          missing_imgs << mid
+          match
+        end
+      end
+      m.save
+      i += 1
+    end
+    puts "Done. Replaced #{replaced} image urls."
+    puts "Missing images in #{missing_imgs.count} manifestations: #{missing_imgs.join(', ')}"
+  end
+end