module.exports = { up: async (queryInterface, Sequelize) => { let tableName, constraintName; tableName = "collection_groups"; constraintName = "collection_groups_collectionId_fkey"; await queryInterface.sequelize.query( `alter table "${tableName}" drop constraint "${constraintName}"` ); await queryInterface.sequelize.query( `alter table "${tableName}" add constraint "${constraintName}" foreign key("collectionId") references "collections" ("id") on delete cascade` ); constraintName = "collection_groups_groupId_fkey"; await queryInterface.sequelize.query( `alter table "${tableName}" drop constraint "${constraintName}"` ); await queryInterface.sequelize.query( `alter table "${tableName}" add constraint "${constraintName}" foreign key("groupId") references "groups" ("id") on delete cascade` ); }, down: async (queryInterface, Sequelize) => { let tableName, constraintName; tableName = "collection_groups"; constraintName = "collection_groups_collectionId_fkey"; await queryInterface.sequelize.query( `alter table "${tableName}" drop constraint "${constraintName}"` ); await queryInterface.sequelize.query( `alter table "${tableName}" add constraint "${constraintName}" foreign key("collectionId") references "collections" ("id") on delete no action` ); constraintName = "collection_groups_groupId_fkey"; await queryInterface.sequelize.query( `alter table "${tableName}" drop constraint "${constraintName}"` ); await queryInterface.sequelize.query( `alter table "${tableName}" add constraint "${constraintName}" foreign key("groupId") references "groups" ("id") on delete no action` ); }, };