mirror of
https://github.com/node-red/node-red-nodes.git
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109 lines
3.2 KiB
JavaScript
109 lines
3.2 KiB
JavaScript
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/**
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* Copyright 2013 IBM Corp.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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**/
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var RED = require(process.env.NODE_RED_HOME+"/red/red");
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var mysqldb = require('mysql');
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function MySQLNode(n) {
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RED.nodes.createNode(this,n);
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this.host = n.host;
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this.port = n.port;
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this.user = n.user;
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this.password = n.pass;
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this.dbname = n.db;
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var node = this;
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node.connection = mysqldb.createConnection({
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host : node.host,
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port : node.port,
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user : node.user,
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password : node.password,
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database : node.dbname
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});
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node.connection.connect(function(err) {
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if (err) node.error(err);
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});
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node.on('close', function () {
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node.connection.end(function(err) {
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if (err) node.error(err);
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});
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});
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}
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RED.nodes.registerType("MySQLdatabase",MySQLNode);
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function MysqlDBNodeIn(n) {
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RED.nodes.createNode(this,n);
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this.mydb = n.mydb;
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this.mydbConfig = RED.nodes.getNode(this.mydb);
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if (this.mydbConfig) {
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var node = this;
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node.on("input", function(msg) {
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if (typeof msg.topic === 'string') {
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//console.log("query:",msg.topic);
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node.mydbConfig.connection.query(msg.topic, function(err, rows) {
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if (err) { node.warn(err); }
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else {
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msg.payload = rows;
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node.send(msg);
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}
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});
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}
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else {
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if (typeof msg.topic !== 'string') node.error("msg.topic : the query is not defined as a string");
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}
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});
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}
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else {
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this.error("MySQL database not configured");
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}
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}
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RED.nodes.registerType("mysql",MysqlDBNodeIn);
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//function MysqlDBNodeOut(n) {
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//RED.nodes.createNode(this,n);
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//this.level = n.level;
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//this.operation = n.operation;
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//this.levelConfig = RED.nodes.getNode(this.level);
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//if (this.levelConfig) {
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//var node = this;
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//node.on("input", function(msg) {
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//if (typeof msg.topic === 'string') {
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//if (node.operation === "delete") {
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//node.levelConfig.db.del(msg.topic);
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//}
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//else {
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//node.levelConfig.db.put(msg.topic, msg.payload, function(err) {
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//if (err) node.error(err);
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//});
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//}
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//}
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//else {
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//if (typeof msg.topic !== 'string') node.error("msg.topic : the key is not defined");
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//}
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//});
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//}
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//else {
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//this.error("MySQL database not configured");
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//}
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//}
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//RED.nodes.registerType("mysql out",MysqlDBNodeOut);
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