Zhong Sheng zhongsheng

## 1_graphql_ruby_n_plus_one.md

      
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                DmitryTsepelev
                / 1_graphql_ruby_n_plus_one.md
            
            
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              January 5, 2024 15:16
            
              
                N+1 in graphql-ruby
              
          
    How to run examples:

Run $ createdb nplusonedb to create DB
Run specs $ rspec demo.rb


## 001_add_record_uuid_to_active_storage_attachments.rb
class AddRecordUuidToActiveStorageAttachments < ActiveRecord::Migration[5.2]
  def change
    # After applying this migration, you'll need to manually go through your
    # attachments and populate the new `record_uuid` column.
    # If you're unable to do this, you'll probably have to delete all your attachments.
    # You've pretty much got useless garbage data if that's the case :(
    add_column :active_storage_attachments, :record_uuid, :uuid
  end
end

## README-setup-tunnel-as-systemd-service.md

      
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                drmalex07
                / README-setup-tunnel-as-systemd-service.md
            
            
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              May 4, 2024 15:04
            
              
                Setup a secure (SSH) tunnel as a systemd service. #systemd #ssh #ssh-tunnel #ssh-forward
              
          
    README

Create a template service file at /etc/systemd/system/secure-tunnel@.service. The template parameter will correspond to the name
of target host:
[Unit]
Description=Setup a secure tunnel to %I
After=network.target
	class AddRecordUuidToActiveStorageAttachments < ActiveRecord::Migration[5.2]
	def change
	# After applying this migration, you'll need to manually go through your
	# attachments and populate the new `record_uuid` column.
	# If you're unable to do this, you'll probably have to delete all your attachments.
	# You've pretty much got useless garbage data if that's the case :(
	add_column :active_storage_attachments, :record_uuid, :uuid
	end
	end