@opengis/bi/server/routes/dataset/controllers/comment.js

BI data visualization module

import { pgClients } from '@opengis/fastify-table/utils.js';

export default async function datasetEditComment({
  pg = pgClients.client,
  body = {},
  params = {},
}) {
  if (!params?.id) {
    return { message: 'not enough params: id', status: 400 };
  }

  if (!Array.isArray(body.data) || !body.data?.length) {
    return { message: 'invalid param: body.data not an array / empty', status: 400 };
  }

  const dataset = await pg.query('select dataset_id as id, table_name as table from bi.dataset where dataset_id=$1', [params.id])
    .then(el => el.rows?.[0] || {});

  if (!dataset?.table) {
    return { message: dataset?.id ? 'dataset table not set' : 'dataset not found', status: 404 };
  }

  const { fields = [] } = pg.pk?.[dataset.table] ? await pg.query(`select * from ${dataset.table} limit 0`) : {};

  if (!fields.length) {
    return { message: `table not found: ${dataset.table}`, status: 404 };
  }

  const columnList = fields.map(el => el.name);
  const validData = body.data?.filter?.(el => el?.name && el?.comment && columnList.includes(el.name));

  const q1 = validData.map(el => `COMMENT ON COLUMN ${dataset.table}."${el.name.replace(/'/g, "''")}" IS '${el.comment.replace(/'/g, "''")}'`).join(';');
  if (q1) await pg.query(q1);

  const q2 = `select
    attrelid::regclass,
    attname,
    pg_catalog.col_description(attrelid,attnum) as title
  from pg_catalog.pg_attribute a 
  where attnum > 0 
  and attname not in ('editor_id','editor_date','cdate','geom','id','uid','cdate')
  and atttypid::regtype not in ('json','geometry')
  and pg_catalog.col_description(attrelid,attnum) is not null`;

  const { rows = [] } = await pg.query(q2);

  const title = rows
    .filter(el => el.attrelid === dataset.table)
    .reduce((p, el) => ({ ...p, [el.attname]: el.title }), {});

  const res = await pg.query(`update bi.dataset set setting=coalesce(setting::jsonb, '{}'::jsonb)||$1::jsonb 
  where dataset_id=$2 returning dataset_id as id, setting`, [{ title }, dataset.id]);

  return res.rows?.[0];
}