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Add sqlite node to node-red-nodes (and npm)

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node-red-contrib-sqlite
=======================
A Node-Red node to read and write a local sqlite database.
Install
-------
Run the following command in the root directory of your Node-RED install
npm install node-red-contrib-sqlite
Usage
-----
tbd

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<!--
Copyright 2014 IBM Corp.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
-->
<script type="text/x-red" data-template-name="sqlitedb">
<div class="form-row">
<label for="node-config-input-db"><i class="icon-briefcase"></i> Database</label>
<input type="text" id="node-config-input-db" placeholder="/tmp/sqlite">
</div>
</script>
<script type="text/javascript">
RED.nodes.registerType('sqlitedb',{
category: 'config',
defaults: {
db: {value:"",required:true}
},
label: function() {
return this.db;
}
});
</script>
<script type="text/x-red" data-template-name="sqlite">
<div class="form-row">
<label for="node-input-mydb"><i class="icon-briefcase"></i> Database</label>
<input type="text" id="node-input-mydb">
</div>
<div class="form-row">
<label for="node-input-name"><i class="icon-tag"></i> Name</label>
<input type="text" id="node-input-name" placeholder="Name">
</div>
</script>
<script type="text/x-red" data-help-name="sqlite">
<p>Allows basic access to a Sqlite database.</p>
<p>This node uses the <b>db.all</b> operation against the configured database. This does allow INSERTS, UPDATES and DELETES.
By it's very nature it is SQL injection... so <i>be careful out there...</i></p>
<p><b>msg.topic</b> must hold the <i>query</i> for the database, and the result is returned in <b>msg.payload</b>.</p>
<p>Typically the returned payload will be an array of the result rows, (or an error).</p>
<p>The reconnect timeout in milliseconds can be changed by adding a line to <b>settings.js</b>
<pre>sqliteReconnectTime: 20000,</pre></p>
</script>
<script type="text/javascript">
RED.nodes.registerType('sqlite',{
category: 'storage-input',
color:"#e97b00",
defaults: {
mydb: {type:"sqlitedb",required:true},
name: {value:""}
},
inputs:1,
outputs:1,
icon: "sqlite.png",
label: function() {
var dbNode = RED.nodes.node(this.mydb);
return this.name||(dbNode?dbNode.label():"sqlite");
},
labelStyle: function() {
return this.name?"node_label_italic":"";
}
});
</script>

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/**
* Copyright 2014 IBM Corp.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
**/
module.exports = function(RED) {
"use strict";
var reconnect = RED.settings.sqliteReconnectTime || 20000;
var sqlite3 = require('sqlite3');
function SqliteNodeDB(n) {
RED.nodes.createNode(this,n);
this.dbname = n.db;
var node = this;
node.doConnect = function() {
node.db = new sqlite3.Database(node.dbname);
node.db.on('open',function(err) {
if (node.tick) { clearTimeout(node.tick); }
node.log("opened "+node.dbname+" ok");
});
node.db.on('error', function(err) {
node.warn(err);
node.log("failed to open "+node.dbname);
node.tick = setTimeout(doConnect, reconnect);
});
}
node.on('close', function () {
if (node.tick) { clearTimeout(node.tick); }
if (node.db) { node.db.close(); }
});
}
RED.nodes.registerType("sqlitedb",SqliteNodeDB);
function SqliteNodeIn(n) {
RED.nodes.createNode(this,n);
this.mydb = n.mydb;
this.mydbConfig = RED.nodes.getNode(this.mydb);
if (this.mydbConfig) {
this.mydbConfig.doConnect();
var node = this;
node.on("input", function(msg) {
if (typeof msg.topic === 'string') {
//console.log("query:",msg.topic);
node.mydbConfig.db.all(msg.topic, function(err, row) {
if (err) { node.warn(err); }
else {
msg.payload = row;
node.send(msg);
}
});
}
else {
if (typeof msg.topic !== 'string') {
node.error("msg.topic : the query is not defined as a string");
}
}
});
}
else {
this.error("Sqlite database not configured");
}
}
RED.nodes.registerType("sqlite",SqliteNodeIn);
}

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{
"name" : "node-red-contrib-sqlite",
"version" : "0.0.2",
"description" : "A sqlite node for Node-RED",
"dependencies" : {
"sqlite3" : "2.x"
},
"repository" : {
"type":"git",
"url":"https://github.com/dceejay/node-red-contrib-sqlite.git"
},
"license": "Apache",
"keywords": [ "node-red", "sqlite" ],
"node-red" : {
"nodes" : {
"sqlite": "nodes/sqlite.js"
}
},
"author": {
"name": "Dave Conway-Jones",
"email": "ceejay@vnet.ibm.com",
"url": "http://nodered.org"
}
}