server/initializers/migrations/0190-video-comment-unique-url.ts

   1 import * as Sequelize from 'sequelize'
   2
   3 async function up (utils: {
   4   transaction: Sequelize.Transaction,
   5   queryInterface: Sequelize.QueryInterface,
   6   sequelize: Sequelize.Sequelize
   7 }): Promise<void> {
   8   {
   9     const query = 'DELETE FROM "videoComment" s1 ' +
  10       'USING (SELECT MIN(id) as id, url FROM "videoComment" GROUP BY "url" HAVING COUNT(*) > 1) s2 ' +
  11       'WHERE s1."url" = s2."url" AND s1.id <> s2.id'
  12     await utils.sequelize.query(query)
  13   }
  14 }
  15
  16 function down (options) {
  17   throw new Error('Not implemented.')
  18 }
  19
  20 export {
  21   up,
  22   down
  23 }