use mongodb 3.6.1 client, add clustering support (#685)
This commit is contained in:
Ross Cruickshank
GitHub
parent
7e8571af42
commit
4becf68848
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@ -1,11 +1,24 @@
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<script type="text/x-red" data-template-name="mongodb">
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<div class="form-row">
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<label for="node-config-input-hostname"><i class="fa fa-bookmark"></i> <span data-i18n="mongodb.label.host"></span></label>
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<input class="input-append-left" type="text" id="node-config-input-hostname" placeholder="localhost" style="width: 40%;" >
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<label for="node-config-input-port" style="margin-left: 10px; width: 35px; "> <span data-i18n="mongodb.label.port"></span></label>
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<input type="text" id="node-config-input-port" style="width:45px">
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<label for="node-config-input-hostname"><i class="fa fa-bookmark"></i><span data-i18n="mongodb.label.host"></span></label>
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<input class="input-append-left" type="text" id="node-config-input-hostname" placeholder="localhost">
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</div>
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<div class="form-row node-config-input-clustered">
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<label for="node-config-input-clustered"><i class="fa fa-sitemap"></i><span data-i18n="mongodb.label.clustered"></span></label>
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<input type="checkbox" id="node-config-input-clustered" style="width:20px;">
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</div>
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<div class="form-row node-config-input-port">
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<label for="node-config-input-port"><i class="fa fa-plug"></i><span data-i18n="mongodb.label.port"></span></label>
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<input type="text" id="node-config-input-port" style="width:55px;">
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</div>
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<div class="form-row node-config-clusterVersion">
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<label> </label>
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<span data-i18n="mongodb.label.clusteredVersion"></span>
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</div>
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<div class="form-row">
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<label for="node-config-input-db"><i class="fa fa-database"></i> <span data-i18n="mongodb.label.database"></span></label>
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<input type="text" id="node-config-input-db">
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@ -30,6 +43,7 @@
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color: "rgb(218, 196, 180)",
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defaults: {
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hostname: {value: "127.0.0.1", required: true},
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clustered: {value: true, required: true},
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port: {value: 27017, required: true},
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db: {value: "", required: true},
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name: {value: ""}
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@ -39,8 +53,19 @@
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password: {type: "password"}
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},
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label: function() {
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return this.name || this.hostname + ":" + this.port + "/" + this.db;
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}
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return this.name || this.db + "@" + this.hostname;
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},
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oneditprepare: function() {
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$("#node-config-input-clustered").on("change",function () {
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if ( $("#node-config-input-clustered").is(":checked") ) {
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$(".node-config-input-port").hide();
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$(".node-config-clusterVersion").show();
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} else {
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$(".node-config-input-port").show();
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$(".node-config-clusterVersion").hide();
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}
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})
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},
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});
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</script>
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@ -90,20 +115,20 @@
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<p>Save will update an existing object or insert a new object if one does not already exist.</p>
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<p>Insert will insert a new object.</p>
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<p>Save and insert either store <code>msg</code> or <code>msg.payload</code>.</p>
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<p>Update will modify an existing object or objects. The query to select objects to update uses <code>msg.query</code>,
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<p>Update will modify an existing object or objects. The query to select objects to update uses <code>msg.query</code>
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and the update to the element uses <code>msg.payload</code>. If <code>msg.query._id</code> is
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a valid mongo ObjectId string it will be converted to an ObjectId type.</p>
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<p>Update can add an object if it does not exist or update multiple objects.</p>
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<p>Update can add a object if it does not exist or update multiple objects.</p>
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<p>Remove will remove objects that match the query passed in on <code>msg.payload</code>. A blank query will delete
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<i>all of the objects</i> in the collection.</p>
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<p>You can either set the collection method in the node config or on <code>msg.collection</code>. Setting it in the
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node will override <code>msg.collection</code>.</p>
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<p>By default, MongoDB creates an <i>_id</i> property as the primary key, so repeated injections of the
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<p>By default MongoDB creates an <i>_id</i> property as the primary key - so repeated injections of the
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same <code>msg</code> will result in many database entries.</p>
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<p>If this is NOT the desired behaviour, i.e., you want repeated entries to overwrite, then you must set
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<p>If this is NOT the desired behaviour - ie. you want repeated entries to overwrite, then you must set
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the <code>msg._id</code> property to be a constant by the use of a previous function node.</p>
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<p>This could be a unique constant or you could create one based on some other msg property.</p>
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<p>Currently we do not limit or cap the collection size, however this may well change.</p>
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<p>Currently we do not limit or cap the collection size at all... this may well change.</p>
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</script>
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<script type="text/javascript">
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@ -150,7 +175,7 @@
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align: "right",
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label: function() {
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var mongoNode = RED.nodes.node(this.mongodb);
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return this.name || (mongoNode ? mongoNode.label() + " " + this.collection: "mongodb");
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return this.name || (mongoNode ? mongoNode.label() + " " + this.collection : "mongodb");
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},
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labelStyle: function() {
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return this.name ? "node_label_italic" : "";
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@ -187,9 +212,9 @@
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<script type="text/x-red" data-help-name="mongodb in">
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<p>Calls a MongoDB collection method based on the selected operator.</p>
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<p>Find queries a collection using the <code>msg.payload</code> as the query statement as per the .find() function.
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Optionally, you may also set a <code>msg.projection</code> object (via a function) to constrain the returned
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fields. You can also set a <code>msg.sort</code> object, a <code>msg.limit</code> number and a <code>msg.skip</code> number.</p>
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<p>Count returns a count of the number of documents in a collection, or matches a query using the
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Optionally, you may also (via a function) set a <code>msg.projection</code> object to constrain the returned
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fields, a <code>msg.sort</code> object, a <code>msg.limit</code> number and a <code>msg.skip</code> number.</p>
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<p>Count returns a count of the number of documents in a collection or matching a query using the
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<code>msg.payload</code> as the query statement.</p>
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<p>Aggregate provides access to the aggregation pipeline using the <code>msg.payload</code> as the pipeline array.</p>
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<p>You can either set the collection method in the node config or on <code>msg.collection</code>. Setting it in
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@ -215,7 +240,7 @@
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icon: "mongodb.png",
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label: function() {
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var mongoNode = RED.nodes.node(this.mongodb);
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return this.name || (mongoNode ? mongoNode.label() + " " + this.collection: "mongodb");
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return this.name || (mongoNode ? mongoNode.label() + " " + this.collection : "mongodb");
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},
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labelStyle: function() {
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return this.name ? "node_label_italic" : "";
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@ -1,4 +1,5 @@
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module.exports = function(RED) {
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"use strict";
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var mongo = require('mongodb');
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@ -11,13 +12,37 @@ module.exports = function(RED) {
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this.port = n.port;
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this.db = n.db;
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this.name = n.name;
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this.clustered = n.clustered;
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var url = "mongodb://";
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if (this.credentials && this.credentials.user && this.credentials.password) {
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url += this.credentials.user+":"+this.credentials.password+"@";
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// if(n.user && n.password){
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// this.credentials.user = n.user;
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// this.credentials.password= n.password;
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// }
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//console.log(this);
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//console.log("\n\n\n\n\n",n);
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var url = "mongodb+srv://";
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if (!this.clustered) {
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url = "mongodb://";
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}
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if (this.credentials && this.credentials.user && this.credentials.password) {
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this.user = this.credentials.user;
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this.password = this.credentials.password;
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} else {
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this.user = n.user;
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this.password = n.password;
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}
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if (this.user) {
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url += this.user+":"+this.password+"@";
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}
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if (this.clustered) {
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url += this.hostname + "/" + this.db + "?retryWrites=true&w=majority";
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} else {
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url += this.hostname + ":" + this.port + "/" + this.db;
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}
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url += this.hostname+":"+this.port+"/"+this.db;
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console.log(url);
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this.url = url;
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}
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@ -49,7 +74,7 @@ module.exports = function(RED) {
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var noerror = true;
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var connectToDB = function() {
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MongoClient.connect(node.mongoConfig.url, function(err, db) {
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MongoClient.connect(node.mongoConfig.url, function(err, client) {
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if (err) {
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node.status({fill:"red",shape:"ring",text:RED._("mongodb.status.error")});
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if (noerror) { node.error(err); }
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@ -58,9 +83,12 @@ module.exports = function(RED) {
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}
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else {
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node.status({fill:"green",shape:"dot",text:RED._("mongodb.status.connected")});
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node.clientDb = db;
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node.clientDb = client.db();
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var db = client.db();
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console.log( db);
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noerror = true;
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var coll;
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if (node.collection) {
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coll = db.collection(node.collection);
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}
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@ -174,7 +202,8 @@ module.exports = function(RED) {
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var noerror = true;
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var connectToDB = function() {
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MongoClient.connect(node.mongoConfig.url, function(err,db) {
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console.log("connecting:" + node.mongoConfig.url);
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MongoClient.connect(node.mongoConfig.url, function(err,client) {
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if (err) {
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node.status({fill:"red",shape:"ring",text:RED._("mongodb.status.error")});
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if (noerror) { node.error(err); }
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@ -183,7 +212,8 @@ module.exports = function(RED) {
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}
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else {
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node.status({fill:"green",shape:"dot",text:RED._("mongodb.status.connected")});
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node.clientDb = db;
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node.clientDb = client.db();
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var db = client.db();
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noerror = true;
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var coll;
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node.on("input", function(msg) {
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@ -16,13 +16,23 @@ Install
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-------
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Run the following command in your Node-RED user directory - typically `~/.node-red`
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```
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npm install node-red-node-mongodb
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```
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Note that this package requires a MongoDB client package at least version 3.6.1 - if you have an older (version 2) client,
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you may need to remove that before installing this
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```
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npm remove mongodb
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npm install node-red-node-mongodb
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```
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Usage
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-----
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Nodes to save and retrieve data in a local MongoDB instance.
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Nodes to save and retrieve data in a MongoDB instance - the database server can be local (mongodb//:localhost:27017), remote (mongodb://hostname.network:27017),
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and sharded cluster (mongodb+srv://clustername.network).
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Reference [MongoDB docs](https://docs.mongodb.com/manual/reference/connection-string/) to see which connection method (host or clustered) to use for your MongoDB instance.
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### Input
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@ -2,6 +2,8 @@
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"mongodb": {
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"label": {
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"host": "Host",
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"clustered": "Clustered",
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"clusteredVersion":"MongoDB databases in sharded cluster (>=3.4)",
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"port": "Port",
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"database": "Database",
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"username": "Username",
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@ -1,9 +1,9 @@
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{
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"name" : "node-red-node-mongodb",
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"version" : "0.0.14",
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"version" : "0.1.0",
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"description" : "Node-RED nodes to talk to an Mongo database",
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"dependencies" : {
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"mongodb" : "^2.2.34"
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"mongodb" : "^3.6.1"
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},
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"repository" : {
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"type":"git",
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@ -20,5 +20,11 @@
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"name": "Dave Conway-Jones",
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"email": "ceejay@vnet.ibm.com",
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"url": "http://nodered.org"
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},
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"contributors": [
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{
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"name": "Ross Cruickshank",
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"email": "ross@vnet.ibm.com"
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}
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]
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}
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