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Added postgres adapter
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447d0aae76
commit
ab029eae2f
3 changed files with 66 additions and 61 deletions
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@ -56,7 +56,6 @@ DocumentHandler.prototype.handlePost = function (request, response) {
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// What to do when done
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// What to do when done
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var onSuccess = function () {
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var onSuccess = function () {
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// Check length
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// Check length
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console.log(buffer);
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if (_this.maxLength && buffer.length > _this.maxLength) {
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if (_this.maxLength && buffer.length > _this.maxLength) {
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cancelled = true;
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cancelled = true;
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winston.warn('document >maxLength', { maxLength: _this.maxLength });
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winston.warn('document >maxLength', { maxLength: _this.maxLength });
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@ -3,72 +3,78 @@
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var postgres = require('pg');
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var postgres = require('pg');
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var winston = require('winston');
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var winston = require('winston');
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(function () {
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// create table entries (id SERIAL primary key, key varchar(255) not null, value text not null, expiration int);
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// CREATE UNIQUE INDEX unique_key ON entries (key);
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'use strict';
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// A postgres document store
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var PostgresDocumentStore = function (options) {
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this.expireJS = options.expire;
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this.connectionUrl = process.env.DATABASE_URL || options.connectionUrl;
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};
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// A postgres document store
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PostgresDocumentStore.prototype = {
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var PostgresDocumentStore = function (options) {
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this.expireJS = options.expire * 1000;
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this.connectionString = process.env.DATABASE_URL;
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};
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PostgresDocumentStore.prototype = {
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// Set a given key
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set: function (key, data, callback, skipExpire) {
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// Set a given key
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var now = Math.floor(new Date().getTime() / 1000);
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set: function (key, data, callback, skipExpire) {
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var that = this;
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var now = new Date().getTime() / 1000;
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this.safeConnect(function (err, client, done) {
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var that = this;
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if (err) { return callback(false); }
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this.safeConnect(function (err, client, done) {
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client.query('INSERT INTO entries (key, value, expiration) VALUES ($1, $2, $3)', [
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if (err) { return callback(false); }
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key,
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client.query('INSERT INTO entries (key, value, expiration) VALUES ($1, $2, $3)', [
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data,
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key,
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that.expireJS && !skipExpire ? that.expireJS + now : null
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data,
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], function (err, result) {
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that.expireJS && !skipExpire ? now + that.expireJS : null
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], function (err, result) {
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if (err) {
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winston.error('error persisting value to postgres', { error: err });
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return callback(false);
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}
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callback(true);
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done();
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});
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});
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},
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// Get a given key's data
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get: function (key, callback, skipExpire) {
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var now = new Date().getTime() / 1000;
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var that = this;
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this.safeConnect(function (err, client, done) {
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if (err) { return callback(false); }
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client.query('SELECT value from entries where KEY = $1 AND (expiration IS NULL or expiration < $2)', [
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key,
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that.expireJS ? now - that.expireJS : 0
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], function (err, result) {
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if (err) {
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winston.error('error retrieving value from postgres', { error: err });
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return callback(false);
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}
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callback(result.rows.length ? result.rows[0].value : false);
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});
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});
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},
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// A connection wrapper
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safeConnect: function (callback) {
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postgres.connect(this.connectionString, function (err, client, done) {
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if (err) {
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if (err) {
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winston.error('error connecting to postgres', { error: err });
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winston.error('error persisting value to postgres', { error: err });
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callback(err);
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return callback(false);
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}
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callback(true);
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done();
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});
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});
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},
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// Get a given key's data
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get: function (key, callback, skipExpire) {
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var now = Math.floor(new Date().getTime() / 1000);
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var that = this;
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this.safeConnect(function (err, client, done) {
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if (err) { return callback(false); }
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client.query('SELECT id,value,expiration from entries where KEY = $1 and (expiration IS NULL or expiration > $2)', [key, now], function (err, result) {
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if (err) {
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winston.error('error retrieving value from postgres', { error: err });
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return callback(false);
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}
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callback(result.rows.length ? result.rows[0].value : false);
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if (result.rows.length && that.expireJS && !skipExpire) {
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client.query('UPDATE entries SET expiration = $1 WHERE ID = $2', [
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that.expireJS + now,
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result.rows[0].id
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], function (err, result) {
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if (!err) {
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done();
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}
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});
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} else {
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} else {
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callback(undefined, client, done);
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done();
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}
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}
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});
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});
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}
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});
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},
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};
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// A connection wrapper
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safeConnect: function (callback) {
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postgres.connect(this.connectionUrl, function (err, client, done) {
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if (err) {
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winston.error('error connecting to postgres', { error: err });
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callback(err);
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} else {
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callback(undefined, client, done);
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}
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});
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}
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module.export = PostgresDocumentStore;
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};
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}());
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module.exports = PostgresDocumentStore;
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@ -37,7 +37,7 @@ if (!config.storage.type) {
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var Store, preferredStore;
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var Store, preferredStore;
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if (process.env.REDISTOGO_URL) {
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if (process.env.REDISTOGO_URL && config.storage.type === 'redis') {
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var redisClient = require('redis-url').connect(process.env.REDISTOGO_URL);
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var redisClient = require('redis-url').connect(process.env.REDISTOGO_URL);
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Store = require('./lib/document_stores/redis');
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Store = require('./lib/document_stores/redis');
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preferredStore = new Store(config.storage, redisClient);
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preferredStore = new Store(config.storage, redisClient);
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