50 lines
1.3 KiB
JavaScript
50 lines
1.3 KiB
JavaScript
const PSQL = require('cartodb-psql');
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const copyTo = require('pg-copy-streams').to;
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const copyFrom = require('pg-copy-streams').from;
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module.exports = {
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to(sql, userDbParams, cb, next) {
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const pg = new PSQL(userDbParams);
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pg.connect(function (err, client, done) {
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if (err) {
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cb(err);
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}
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const copyToStream = copyTo(sql);
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const pgstream = client.query(copyToStream);
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pgstream
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.on('end', () => {
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done();
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next(null, copyToStream.rowCount);
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});
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cb(null, pgstream, client, done);
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});
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},
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from(sql, userDbParams, cb, next) {
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const pg = new PSQL(userDbParams);
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pg.connect(function (err, client, done) {
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if (err) {
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cb(err);
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}
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let copyFromStream = copyFrom(sql);
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const pgstream = client.query(copyFromStream);
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pgstream
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.on('error', err => {
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done();
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cb(err, pgstream);
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})
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.on('end', function () {
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done();
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next(null, copyFromStream.rowCount);
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});
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cb(null, pgstream, client, done);
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});
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}
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};
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