29 lines
731 B
Ruby
29 lines
731 B
Ruby
class CreateForkNetworks < ActiveRecord::Migration[4.2]
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include Gitlab::Database::MigrationHelpers
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DOWNTIME = false
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disable_ddl_transaction!
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def up
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create_table :fork_networks do |t|
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t.references :root_project,
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references: :projects,
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index: { unique: true }
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t.string :deleted_root_project_name
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end
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add_concurrent_foreign_key :fork_networks, :projects,
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column: :root_project_id,
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on_delete: :nullify
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end
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def down
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if foreign_keys_for(:fork_networks, :root_project_id).any?
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remove_foreign_key :fork_networks, column: :root_project_id
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end
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drop_table :fork_networks
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end
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end
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