Windshaft-cartodb/lib/api/middlewares/surrogate-key-header.js
2019-10-21 19:07:24 +02:00

34 lines
1.1 KiB
JavaScript

'use strict';
const NamedMapsCacheEntry = require('../../cache/model/named-maps-entry');
const NamedMapMapConfigProvider = require('../../models/mapconfig/provider/named-map-provider');
module.exports = function setSurrogateKeyHeader ({ surrogateKeysCache }) {
return function setSurrogateKeyHeaderMiddleware (req, res, next) {
const { user, mapConfigProvider } = res.locals;
if (mapConfigProvider instanceof NamedMapMapConfigProvider) {
surrogateKeysCache.tag(res, new NamedMapsCacheEntry(user, mapConfigProvider.getTemplateName()));
}
if (req.method !== 'GET') {
return next();
}
mapConfigProvider.getAffectedTables((err, affectedTables) => {
if (err) {
global.logger.warn('ERROR generating Surrogate Key Header:', err);
return next();
}
if (!affectedTables || !affectedTables.tables || affectedTables.tables.length === 0) {
return next();
}
surrogateKeysCache.tag(res, affectedTables);
next();
});
};
};