28 lines
895 B
Ruby
28 lines
895 B
Ruby
class CreateForkNetworkMembers < 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_network_members do |t|
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t.references :fork_network, null: false, index: true, foreign_key: { on_delete: :cascade }
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t.references :project, null: false, index: { unique: true }, foreign_key: { on_delete: :cascade }
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t.references :forked_from_project, references: :projects
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end
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add_concurrent_foreign_key :fork_network_members, :projects,
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column: :forked_from_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_network_members, :forked_from_project_id).any?
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remove_foreign_key :fork_network_members, column: :forked_from_project_id
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end
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drop_table :fork_network_members
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end
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end
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