89 lines
2.5 KiB
JavaScript
89 lines
2.5 KiB
JavaScript
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var MongoClient = require('mongodb').MongoClient,
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winston = require('winston');
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var MongoDocumentStore = function (options) {
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this.expire = options.expire;
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this.connectionUrl = process.env.DATABASE_URl || options.connectionUrl;
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};
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MongoDocumentStore.prototype.set = function (key, data, callback, skipExpire) {
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var now = Math.floor(new Date().getTime() / 1000),
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that = this;
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this.safeConnect(function (err, db) {
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if (err)
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return callback(false);
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db.collection('entries').update({
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'entry_id': key,
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$or: [
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{ expiration: -1 },
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{ expiration: { $gt: now } }
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]
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}, {
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'entry_id': key,
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'value': data,
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'expiration': that.expire && !skipExpire ? that.expire + now : -1
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}, {
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upsert: true
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}, function (err, existing) {
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if (err) {
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winston.error('error persisting value to mongodb', { error: err });
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return callback(false);
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}
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callback(true);
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});
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});
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};
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MongoDocumentStore.prototype.get = function (key, callback, skipExpire) {
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var now = Math.floor(new Date().getTime() / 1000),
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that = this;
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this.safeConnect(function (err, db) {
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if (err)
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return callback(false);
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db.collection('entries').findOne({
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'entry_id': key,
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$or: [
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{ expiration: -1 },
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{ expiration: { $gt: now } }
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]
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}, function (err, entry) {
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if (err) {
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winston.error('error persisting value to mongodb', { error: err });
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return callback(false);
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}
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callback(entry === null ? false : entry.value);
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if (entry !== null && entry.expiration !== -1 && that.expire && !skipExpire) {
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db.collection('entries').update({
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'entry_id': key
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}, {
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$set: {
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'expiration': that.expire + now
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}
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}, function (err, result) { });
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}
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});
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});
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};
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MongoDocumentStore.prototype.safeConnect = function (callback) {
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MongoClient.connect(this.connectionUrl, function (err, db) {
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if (err) {
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winston.error('error connecting to mongodb', { error: err });
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callback(err);
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} else {
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callback(undefined, db);
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}
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});
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};
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module.exports = MongoDocumentStore;
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