@directus/api/dist/database/migrations/20240909A-separate-comments.js

Directus is a real-time API and App dashboard for managing SQL database content

import { Action } from '@directus/constants';
import { getHelpers } from '../helpers/index.js';
export async function up(knex) {
    const helpers = getHelpers(knex);
    await knex.schema.createTable('directus_comments', (table) => {
        table.uuid('id').primary().notNullable();
        table.string('collection', helpers.schema.getTableNameMaxLength()).notNullable();
        table.string('item').notNullable();
        table.text('comment').notNullable();
        table.timestamp('date_created').defaultTo(knex.fn.now());
        table.timestamp('date_updated').defaultTo(knex.fn.now());
        table.uuid('user_created').references('id').inTable('directus_users').onDelete('SET NULL');
        // Cannot have two constraints from/to the same table, handled on API side
        table.uuid('user_updated').references('id').inTable('directus_users');
    });
}
export async function down(knex) {
    const rowsLimit = 50;
    let hasMore = true;
    while (hasMore) {
        const comments = await knex
            .select('id', 'collection', 'item', 'comment', 'date_created', 'user_created')
            .from('directus_comments')
            .limit(rowsLimit);
        if (comments.length === 0) {
            hasMore = false;
            break;
        }
        await knex.transaction(async (trx) => {
            for (const comment of comments) {
                const migratedRecords = await trx('directus_activity')
                    .select('id')
                    .where('collection', '=', 'directus_comments')
                    .andWhere('item', '=', comment.id)
                    .andWhere('action', '=', Action.CREATE)
                    .limit(1);
                if (migratedRecords[0]) {
                    await trx('directus_activity')
                        .update({
                        action: Action.COMMENT,
                        collection: comment.collection,
                        item: comment.item,
                        comment: comment.comment,
                    })
                        .where('id', '=', migratedRecords[0].id);
                }
                else {
                    await trx('directus_activity').insert({
                        action: Action.COMMENT,
                        collection: comment.collection,
                        item: comment.item,
                        comment: comment.comment,
                        user: comment.user_created,
                        timestamp: comment.date_created,
                    });
                }
                await trx('directus_comments').where('id', '=', comment.id).delete();
            }
        });
    }
    await knex.schema.dropTable('directus_comments');
}