dougal-software/lib/www/server/lib/db/event/list.js

const { setSurvey } = require('../connection');

async function list (projectId, opts = {}) {
	const client = await setSurvey(projectId);

	const sortFields = [ "sequence", "point", "tstamp", "remarks" ];
	const sortKey = opts.sortBy && sortFields.includes(opts.sortBy) && opts.sortBy || "tstamp";
	const sortDir = (opts.sortDesc == "true" || !opts.sortDesc) ? "DESC" : "ASC";
	const offset = Math.abs((opts.page-1)*opts.itemsPerPage) || 0;
	const limit = Math.abs(Number(opts.itemsPerPage)) || null;

	const filter = opts.sequence
		? opts.sequence.includes(";")
			? [ "sequence = ANY ( $1 )", [ opts.sequence.split(";") ] ]
			: [ "sequence = $1", [ opts.sequence ] ]
		: opts.date0
			? opts.date1
				? [ "date(tstamp) BETWEEN SYMMETRIC $1 AND $2", [ opts.date0, opts.date1 ] ]
				: [ "date(tstamp) = $1", [ opts.date0 ] ]
			: [ "true = true", [] ];

	const text = `
		SELECT *,
			array(SELECT label FROM events_labels l WHERE l.type = e.type AND l.id = e.id) labels
		FROM events e
		WHERE
			${filter[0]}
		ORDER BY ${sortKey} ${sortDir};
	`;

	const res = await client.query(text, filter[1]);
	client.release();
	return res.rows;
}

module.exports = list;