PeerTube/server/initializers/migrations/0755-unique-viewer-url.ts

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import * as Sequelize from 'sequelize'
async function up (utils: {
transaction: Sequelize.Transaction
queryInterface: Sequelize.QueryInterface
sequelize: Sequelize.Sequelize
db: any
}): Promise<void> {
const { transaction } = utils
const query = 'DELETE FROM "localVideoViewer" t1 ' +
'USING (SELECT MIN(id) as id, "url" FROM "localVideoViewer" GROUP BY "url" HAVING COUNT(*) > 1) t2 ' +
'WHERE t1."url" = t2."url" AND t1.id <> t2.id'
await utils.sequelize.query(query, { transaction })
}
async function down (utils: {
queryInterface: Sequelize.QueryInterface
transaction: Sequelize.Transaction
}) {
}
export {
up,
down
}