adds rake task to generate fixtures from db, adds a class method to ActiveRecord::Base to generate fixtures

config/initializers/active_record_base.rb

@@ -6,4 +6,13 @@ ActiveRecord::Base.class_eval do
         to_yaml.sub!(/---\s?/, "\n"))
     end
   end
+
+  def self.dump_fixtures
+    fixture_file = "#{Rails.root}/test/fixtures/#{self.table_name}.yml"
+    File.open(fixture_file, "w") do |f|
+      self.all.each do |instance|
+        f.puts({ "#{self.table_name.singularize}_#{instance.id}" => instance.attributes }.to_yaml.sub!(/---\s?/, "\n"))
+      end
+    end
+  end
 end

lib/tasks/fablab.rake

@@ -177,4 +177,13 @@ namespace :fablab do
 
     puts "\nUsers successfully notified\n\n"
   end
+
+  desc "generate fixtures from db"
+  task generate_fixtures: :environment do
+    Rails.application.eager_load!
+    ActiveRecord::Base.descendants.reject { |c| c == ActiveRecord::SchemaMigration }.each do |ar_base|
+      p "========== #{ar_base} =============="
+      ar_base.dump_fixtures
+    end
+  end
 end