c81f5544e6
Added support for ajax-based server side validation (useful for validation of emails, duplicate usernames, etc.) User form more or less ready in the basic version (i.e. without permission management)
80 lines
No EOL
2.1 KiB
JavaScript
80 lines
No EOL
2.1 KiB
JavaScript
'use strict';
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const knex = require('../lib/knex');
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const hasher = require('node-object-hash')();
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const { enforce, filterObject } = require('../lib/helpers');
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const interoperableErrors = require('../shared/interoperable-errors');
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const allowedKeys = new Set(['name', 'description', 'parent']);
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async function list() {
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return await knex('namespaces');
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}
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function hash(ns) {
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return hasher.hash(filterObject(ns, allowedKeys));
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}
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async function getById(nsId) {
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const ns = await knex('namespaces').where('id', nsId).first();
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if (!ns) {
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throw new interoperableErrors.NotFoundError();
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}
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ns.hash = hash(ns);
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return ns;
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}
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async function create(ns) {
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const nsId = await knex('namespaces').insert(filterObject(ns, allowedKeys));
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return nsId;
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}
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async function updateWithConsistencyCheck(ns) {
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enforce(ns.id !== 1 || ns.parent === null, 'Cannot assign a parent to the root namespace.');
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await knex.transaction(async tx => {
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const existingNs = await tx('namespaces').where('id', ns.id).first();
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if (!ns) {
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throw new interoperableErrors.NotFoundError();
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}
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const existingNsHash = hash(existingNs);
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if (existingNsHash != ns.originalHash) {
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throw new interoperableErrors.ChangedError();
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}
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let iter = ns;
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while (iter.parent != null) {
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iter = await tx('namespaces').where('id', iter.parent).first();
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if (iter.id == ns.id) {
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throw new interoperableErrors.LoopDetectedError();
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}
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}
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await tx('namespaces').where('id', ns.id).update(filterObject(ns, allowedKeys));
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});
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}
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async function remove(nsId) {
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enforce(nsId !== 1, 'Cannot delete the root namespace.');
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await knex.transaction(async tx => {
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const childNs = await tx('namespaces').where('parent', nsId).first();
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if (childNs) {
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throw new interoperableErrors.ChildDetectedError();
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}
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await tx('namespaces').where('id', nsId).del();
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});
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}
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module.exports = {
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hash,
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list,
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getById,
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create,
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updateWithConsistencyCheck,
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remove
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}; |