Add task(s) to visualize element and page usage

lib/tasks/alchemy/usage.rake

@@ -0,0 +1,38 @@
+namespace :alchemy do
+  desc "List Alchemy elements and pages usage"
+  task usage: [:page_usage, :element_usage]
+
+  desc "List Alchemy elements usage"
+  task page_usage: :environment do
+    include ActionView::Helpers::NumberHelper
+    puts "\n  Alchemy pages usage"
+    puts "  ----------------------"
+    puts "\n"
+    results = ActiveRecord::Base.connection.execute("SELECT page_layout, COUNT(*) AS count FROM alchemy_pages GROUP BY page_layout ORDER BY count DESC")
+    if results.any?
+      results.each do |row|
+        puts "  #{number_with_delimiter(row["count"])} 𝗑 #{row["page_layout"]}"
+      end
+      puts "\n  = #{number_with_delimiter(Alchemy::Page.count)} pages in total."
+    else
+      puts "  No pages found!"
+    end
+  end
+
+  desc "List Alchemy elements usage"
+  task element_usage: :environment do
+    include ActionView::Helpers::NumberHelper
+    puts "\n  Alchemy elements usage"
+    puts "  ----------------------"
+    puts "\n"
+    results = ActiveRecord::Base.connection.execute("SELECT name, COUNT(*) AS count FROM alchemy_elements GROUP BY name ORDER BY count DESC")
+    if results.any?
+      results.each do |row|
+        puts "  #{number_with_delimiter(row["count"])} 𝗑 #{row["name"]}"
+      end
+      puts "\n  = #{number_with_delimiter(Alchemy::Element.count)} elements in total."
+    else
+      puts "  No elements found!"
+    end
+  end
+end