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class CreateForkNetworkMembers < ActiveRecord::Migration
include Gitlab::Database::MigrationHelpers
DOWNTIME = false
disable_ddl_transaction!
def up
create_table :fork_network_members do |t|
t.references :fork_network, null: false, index: true, foreign_key: { on_delete: :cascade }
t.references :project, null: false, index: { unique: true }, foreign_key: { on_delete: :cascade }
t.references :forked_from_project, references: :projects
end
add_concurrent_foreign_key :fork_network_members, :projects,
column: :forked_from_project_id,
on_delete: :nullify
end
def down
if foreign_keys_for(:fork_network_members, :forked_from_project_id).any?
remove_foreign_key :fork_network_members, column: :forked_from_project_id
end
drop_table :fork_network_members
end
end
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