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Add mongo to node-red-node, fix lint etc

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dceejay 2015-06-13 18:47:00 +01:00
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<!--
Copyright 2013,2014 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="mongodb">
<div class="form-row">
<label for="node-config-input-hostname"><i class="fa fa-bookmark"></i> Host</label>
<input class="input-append-left" type="text" id="node-config-input-hostname" placeholder="localhost" style="width: 40%;" >
<label for="node-config-input-port" style="margin-left: 10px; width: 35px; "> Port</label>
<input type="text" id="node-config-input-port" placeholder="27017" style="width:45px">
</div>
<div class="form-row">
<label for="node-config-input-db"><i class="fa fa-database"></i> Database</label>
<input type="text" id="node-config-input-db" placeholder="test">
</div>
<div class="form-row">
<label for="node-config-input-user"><i class="fa fa-user"></i> Username</label>
<input type="text" id="node-config-input-user">
</div>
<div class="form-row">
<label for="node-config-input-password"><i class="fa fa-lock"></i> Password</label>
<input type="password" id="node-config-input-password">
</div>
<div class="form-row">
<label for="node-config-input-name"><i class="fa fa-tag"></i> Name</label>
<input type="text" id="node-config-input-name" placeholder="Name">
</div>
</script>
<script type="text/javascript">
RED.nodes.registerType('mongodb', {
category: 'config',
color: "rgb(218, 196, 180)",
defaults: {
hostname: {value: "127.0.0.1", required: true},
port: {value: 27017, required: true},
db: {value: "", required: true},
name: {value: ""}
},
credentials: {
user: {type: "text"},
password: {type: "password"}
},
label: function() {
return this.name || this.hostname + ":" + this.port + "/" + this.db;
}
});
</script>
<script type="text/x-red" data-template-name="mongodb out">
<div class="form-row">
<label for="node-input-mongodb"><i class="fa fa-bookmark"></i> Server</label>
<input type="text" id="node-input-mongodb">
</div>
<div class="form-row">
<label for="node-input-collection"><i class="fa fa-briefcase"></i> Collection</label>
<input type="text" id="node-input-collection" placeholder="collection">
</div>
<div class="form-row">
<label for="node-input-operation"><i class="fa fa-wrench"></i> Operation</label>
<select type="text" id="node-input-operation" style="display: inline-block; vertical-align: top;">
<option value="store">save</option>
<option value="insert">insert</option>
<option value="update">update</option>
<option value="delete">remove</option>
</select>
</div>
<div class="form-row node-input-payonly">
<label>&nbsp;</label>
<input type="checkbox" id="node-input-payonly" placeholder="Only" style="display: inline-block; width: auto; vertical-align: top;">
<label for="node-input-payonly" style="width: 70%;">Only store msg.payload object</label>
</div>
<div class="form-row node-input-upsert">
<label>&nbsp;</label>
<input type="checkbox" id="node-input-upsert" placeholder="Only" style="display: inline-block; width: auto; vertical-align: top;">
<label for="node-input-upsert" style="width: 70%;">Create a new document if no match found</label>
</div>
<div class="form-row node-input-multi">
<label>&nbsp;</label>
<input type="checkbox" id="node-input-multi" placeholder="Only" style="display: inline-block; width: auto; vertical-align: top;;">
<label for="node-input-multi" style="width: 70%;">Update all matching documents</label>
</div>
<div class="form-row">
<label for="node-input-name"><i class="fa fa-tag"></i> Name</label>
<input type="text" id="node-input-name" placeholder="Name">
</div>
<div class="form-tips" id="node-warning" style="display: none"><b> Tip:</b> If no collection is set, ensure <b>msg.collection</b> will contain the collection name
</div>
</script>
<script type="text/x-red" data-help-name="mongodb out">
<p>A simple MongoDB output node. Can save, insert, update and remove objects from a chosen collection.</p>
<p>Save will update an existing object or insert a new object if one does not already exist.</p>
<p>Insert will insert a new object.</p>
<p>Save and insert either store <b>msg</b> or <b>msg.payload</b>.</p>
<p>Update will modify an existing object or objects. The query to select objects to update uses <b>msg.query</b> and the update to the element uses <b>msg.payload</b>.</p>
<p>Update can add a object if it does not exist or update multiple objects.</p>
<p>Remove will remove objects that match the query passed in on <b>msg.payload</b>. A blank query will delete <i>all of the objects</i> in the collection.</p>
<p>You can either set the collection method in the node config or on <b>msg.collection</b>. Setting it in the node will override <b>msg.collection</b>.</p>
<p>By default MongoDB creates an <i>_id</i> property as the primary key - so repeated injections of the same <b>msg</b> will result in many database entries.</p>
<p>If this is NOT the desired behaviour - ie. you want repeated entries to overwrite, then you must set the <b>msg._id</b> property to be a constant by the use of a previous function node.</p>
<p>This could be a unique constant or you could create one based on some other msg property.</p>
<p>Currently we do not limit or cap the collection size at all... this may well change.</p>
</script>
<script type="text/javascript">
function oneditprepare() {
$("#node-input-operation").change(function () {
var id = $("#node-input-operation option:selected").val();
if (id === "update") {
$(".node-input-payonly").hide();
$(".node-input-upsert, .node-input-multi").show();
} else if (id === "delete") {
$(".node-input-payonly, .node-input-upsert, .node-input-multi").hide();
} else {
$(".node-input-payonly").show();
$(".node-input-upsert, .node-input-multi").hide();
}
});
$("#node-input-collection").change(function () {
if($("#node-input-collection").val() === "") {
$("#node-warning").show();
} else {
$("#node-warning").hide();
}
});
}
RED.nodes.registerType('mongodb out', {
category: 'storage-output',
color: "rgb(218, 196, 180)",
defaults: {
mongodb: {type: "mongodb", required: true},
name: {value: ""},
collection: {value: ""},
payonly: {value: false},
upsert: {value: false},
multi: {value: false},
operation: {value: "store"}
},
inputs: 1,
outputs: 0,
icon: "mongodb.png",
align: "right",
label: function() {
var mongoNode = RED.nodes.node(this.mongodb);
return this.name || (mongoNode ? mongoNode.label() + " " + this.collection: "mongodb");
},
labelStyle: function() {
return this.name ? "node_label_italic" : "";
},
oneditprepare: oneditprepare
});
</script>
<script type="text/x-red" data-template-name="mongodb in">
<div class="form-row">
<label for="node-input-mongodb"><i class="fa fa-bookmark"></i> Server</label>
<input type="text" id="node-input-mongodb">
</div>
<div class="form-row">
<label for="node-input-collection"><i class="fa fa-briefcase"></i> Collection</label>
<input type="text" id="node-input-collection" placeholder="collection">
</div>
<div class="form-row">
<label for="node-input-operation"><i class="fa fa-wrench"></i> Operation</label>
<select type="text" id="node-input-operation" style="display: inline-block; vertical-align: top;">
<option value="find">find</option>
<option value="count">count</option>
<option value="aggregate">aggregate</option>
</select>
</div>
<div class="form-row">
<label for="node-input-name"><i class="fa fa-tag"></i> Name</label>
<input type="text" id="node-input-name" placeholder="Name">
</div>
<div class="form-tips" id="node-warning" style="display: none"><b> Tip:</b> If no collection is set, ensure <b>msg.collection</b> will contain the collection name
</div>
</script>
<script type="text/x-red" data-help-name="mongodb in">
<p>Calls a MongoDB collection method based on the selected operator.</p>
<p>Find queries a collection using the <b>msg.payload</b> as the query statement as per the .find() function. Optionally, you may also (via a function) set a <b>msg.projection</b> object to constrain the returned fields, a <b>msg.sort</b> object, a <b>msg.limit</b> number and a <b>msg.skip</b> number.</p>
<p>Count returns a count of the number of documents in a collection or matching a query using the <b>msg.payload</b> as the query statement.</p>
<p>Aggregate provides access to the aggregation pipeline using the <b>msg.payload</b> as the pipeline array.</p>
<p>You can either set the collection method in the node config or on <b>msg.collection</b>. Setting it in the node will override <b>msg.collection</b>.</p>
<p>See the <a href="http://docs.mongodb.org/manual/reference/method/db.collection.find/" target="new"><i>MongoDB collection methods docs</i></a> for examples.</p>
<p>The result is returned in <b>msg.payload</b>.</p>
</script>
<script type="text/javascript">
RED.nodes.registerType('mongodb in', {
category: 'storage-input',
color: "rgb(218, 196, 180)",
defaults: {
mongodb: {type: "mongodb", required: true},
name: {value: ""},
collection: {value: ""},
operation: {value: "find"}
},
inputs: 1,
outputs: 1,
icon: "mongodb.png",
label: function() {
var mongoNode = RED.nodes.node(this.mongodb);
return this.name || (mongoNode ? mongoNode.label() + " " + this.collection: "mongodb");
},
labelStyle: function() {
return this.name ? "node_label_italic" : "";
},
oneditprepare: oneditprepare
});
</script>

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/**
* Copyright 2013,2015 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 mongo = require('mongodb');
var MongoClient = mongo.MongoClient;
function MongoNode(n) {
RED.nodes.createNode(this,n);
this.hostname = n.hostname;
this.port = n.port;
this.db = n.db;
this.name = n.name;
var url = "mongodb://";
if (this.credentials && this.credentials.user && this.credentials.password) {
url += this.credentials.user+":"+this.credentials.password+"@";
}
url += this.hostname+":"+this.port+"/"+this.db;
this.url = url;
}
RED.nodes.registerType("mongodb",MongoNode,{
credentials: {
user: {type:"text"},
password: {type: "password"}
}
});
function ensureValidSelectorObject(selector) {
if (selector != null && (typeof selector != 'object' || Buffer.isBuffer(selector))) {
return {};
}
return selector;
}
function MongoOutNode(n) {
RED.nodes.createNode(this,n);
this.collection = n.collection;
this.mongodb = n.mongodb;
this.payonly = n.payonly || false;
this.upsert = n.upsert || false;
this.multi = n.multi || false;
this.operation = n.operation;
this.mongoConfig = RED.nodes.getNode(this.mongodb);
if (this.mongoConfig) {
var node = this;
MongoClient.connect(this.mongoConfig.url, function(err, db) {
if (err) {
node.error(err);
} else {
node.clientDb = db;
var coll;
if (node.collection) {
coll = db.collection(node.collection);
}
node.on("input",function(msg) {
if (!node.collection) {
if (msg.collection) {
coll = db.collection(msg.collection);
} else {
node.error("No collection defined",msg);
return;
}
}
delete msg._topic;
delete msg.collection;
if (node.operation === "store") {
if (node.payonly) {
if (typeof msg.payload !== "object") {
msg.payload = {"payload": msg.payload};
}
if (msg.hasOwnProperty("_id") && !msg.payload.hasOwnProperty("_id")) {
msg.payload._id = msg._id;
}
coll.save(msg.payload,function(err, item) {
if (err) {
node.error(err,msg);
}
});
} else {
coll.save(msg,function(err, item) {
if (err) {
node.error(err,msg);
}
});
}
} else if (node.operation === "insert") {
if (node.payonly) {
if (typeof msg.payload !== "object") {
msg.payload = {"payload": msg.payload};
}
if (msg.hasOwnProperty("_id") && !msg.payload.hasOwnProperty("_id")) {
msg.payload._id = msg._id;
}
coll.insert(msg.payload, function(err, item) {
if (err) {
node.error(err,msg);
}
});
} else {
coll.insert(msg, function(err,item) {
if (err) {
node.error(err,msg);
}
});
}
} else if (node.operation === "update") {
if (typeof msg.payload !== "object") {
msg.payload = {"payload": msg.payload};
}
var query = msg.query || {};
var payload = msg.payload || {};
var options = {
upsert: node.upsert,
multi: node.multi
};
coll.update(query, payload, options, function(err, item) {
if (err) {
node.error(err,msg);
}
});
} else if (node.operation === "delete") {
coll.remove(msg.payload, function(err, items) {
if (err) {
node.error(err,msg);
}
});
}
});
}
});
} else {
this.error("missing mongodb configuration");
}
this.on("close", function() {
if (this.clientDb) {
this.clientDb.close();
}
});
}
RED.nodes.registerType("mongodb out",MongoOutNode);
function MongoInNode(n) {
RED.nodes.createNode(this,n);
this.collection = n.collection;
this.mongodb = n.mongodb;
this.operation = n.operation || "find";
this.mongoConfig = RED.nodes.getNode(this.mongodb);
if (this.mongoConfig) {
var node = this;
MongoClient.connect(this.mongoConfig.url, function(err,db) {
if (err) {
node.error(err);
} else {
node.clientDb = db;
var coll;
if (node.collection) {
coll = db.collection(node.collection);
}
node.on("input", function(msg) {
if (!node.collection) {
if (msg.collection) {
coll = db.collection(msg.collection);
} else {
node.error("No collection defined");
return;
}
}
var selector;
if (node.operation === "find") {
msg.projection = msg.projection || {};
selector = ensureValidSelectorObject(msg.payload);
var limit = msg.limit;
if (typeof limit === "string" && !isNaN(limit)) {
limit = Number(limit);
}
var skip = msg.skip;
if (typeof skip === "string" && !isNaN(skip)) {
skip = Number(skip);
}
coll.find(selector,msg.projection).sort(msg.sort).limit(limit).skip(skip).toArray(function(err, items) {
if (err) {
node.error(err);
} else {
msg.payload = items;
delete msg.projection;
delete msg.sort;
delete msg.limit;
delete msg.skip;
node.send(msg);
}
});
} else if (node.operation === "count") {
selector = ensureValidSelectorObject(msg.payload);
coll.count(selector, function(err, count) {
if (err) {
node.error(err);
} else {
msg.payload = count;
node.send(msg);
}
});
} else if (node.operation === "aggregate") {
msg.payload = (Array.isArray(msg.payload)) ? msg.payload : [];
coll.aggregate(msg.payload, function(err, result) {
if (err) {
node.error(err);
} else {
msg.payload = result;
node.send(msg);
}
});
}
});
}
});
} else {
this.error("missing mongodb configuration");
}
this.on("close", function() {
if (this.clientDb) {
this.clientDb.close();
}
});
}
RED.nodes.registerType("mongodb in",MongoInNode);
}

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node-red-node-mongodb
=====================
A <a href="http://nodered.org" target="_new">Node-RED</a> node to save data in a MongoDB database.
**Note** : This is the same node as is/was in the core of Node-RED. If you already
have it installed you do NOT need this node.
Pre-requisite
-------------
To run this you need a local MongoDB server running. For details see
<a href="https://www.mongodb.org/" target="_new">the MongoDB site</a>.
Install
-------
Run the following command in the root directory of your Node-RED install.
Usually this is `~/.node-red` .
npm install node-red-node-mongodb
Usage
-----
Nodes to save and retrieve data in a local MongoDB instance.
###Input
Calls a MongoDB collection method based on the selected operator.
*Find* queries a collection using the **msg.payload** as the query statement as
per the *.find()* function.
Optionally, you may also (via a function) set
- a **msg.projection** object to constrain the returned fields,
- a **msg.sort** object,
- a **msg.limit** number,
- a **msg.skip** number.
*Count* returns a count of the number of documents in a collection or matching a
query using the **msg.payload** as the query statement.
*Aggregate* provides access to the aggregation pipeline using the **msg.payload** as the pipeline array.
You can either set the collection method in the node config or on **msg.collection**.
Setting it in the node will override **msg.collection**.
See the <a href="http://docs.mongodb.org/manual/reference/method/db.collection.find/" target="new">*MongoDB collection methods docs*</a> for examples.
The result is returned in **msg.payload**.
###Output
A simple MongoDB output node. Can save, insert, update and remove objects from a chosen collection.
MongoDB only accepts objects.
Save and insert can either store **msg** or **msg.payload**. If msg.payload is
selected it should contain an object. If not it will be wrapped in an object with a name of payload.
*Save* will update an existing object or insert a new object if one does not already exist.
*Insert* will insert a new object.
*Update* will modify an existing object or objects. The query to select objects
to update uses **msg.query** and the update to the element uses **msg.payload**.
Update can add a object if it does not exist or update multiple objects.
*Remove* will remove objects that match the query passed in on **msg.payload**.
A blank query will delete *all of the objects* in the collection.
You can either set the collection method in the node config or on **msg.collection**.
Setting it in the node will override **msg.collection**.
By default MongoDB creates an **msg._id** property as the primary key - so
repeated injections of the same **msg** will result in many database entries.
If this is NOT the desired behaviour - ie. you want repeated entries to overwrite,
then you must set the **msg._id** property to be a constant by the use of a previous function node.
This must be done at the correct level. If only writing msg.payload then payload must contain the \_id property.
If writing the whole msg object then it must contain an \_id property.
This could be a unique constant or you could create one based on some other msg property.
Currently we do not limit or cap the collection size at all...

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{
"name" : "node-red-node-mongodb",
"version" : "0.0.1",
"description" : "Node-RED nodes to talk to an Mongo database",
"dependencies" : {
"mongodb" : "1.3.6"
},
"repository" : {
"type":"git",
"url":"https://github.com/node-red/node-red-nodes/tree/master/storage/mongodb"
},
"license": "Apache-2.0",
"keywords": [ "node-red", "mongodb" ],
"node-red" : {
"nodes" : {
"mongo": "66-mongodb.js"
}
},
"author": {
"name": "Dave Conway-Jones",
"email": "ceejay@vnet.ibm.com",
"url": "http://nodered.org"
}
}