mirror of https://github.com/node-red/node-red.git
added (some) query capability to MongoDB node.
This commit is contained in:
Dave C-J
parent
065d47d173
commit
06930cb65c
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@ -27,10 +27,6 @@
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</div>
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</script>
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<script type="text/x-red" data-help-name="mongodb out">
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<p>A MongoDB output node.</p>
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</script>
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<script type="text/javascript">
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RED.nodes.registerType('mongodb',{
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category: 'config',
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@ -47,11 +43,59 @@
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</script>
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<script type="text/x-red" data-template-name="mongodb out">
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<div class="form-row">
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<label for="node-input-mongodb"><i class="icon-tag"></i> Server</label>
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<input type="text" id="node-input-mongodb">
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</div>
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<div class="form-row">
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<label for="node-input-collection"><i class="icon-briefcase"></i> Collection</label>
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<input type="text" id="node-input-collection" placeholder="collection">
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</div>
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<div class="form-row">
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<label> </label>
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<input type="checkbox" id="node-input-payonly" placeholder="Only" style="display: inline-block; width: auto; vertical-align: top;">
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<label for="node-input-payonly" style="width: 70%;">Only store msg.payload object ?</label>
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</div>
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<div class="form-row">
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<label for="node-input-name"><i class="icon-tag"></i> Name</label>
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<input type="text" id="node-input-name" placeholder="Name">
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</div>
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</script>
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<script type="text/x-red" data-help-name="mongodb out">
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<p>A simple MongoDB output node. Stores the <b>msg</b> object in a chosen collection.</p>
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<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>
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<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>
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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 at all... this may well change.</p>
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</script>
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<script type="text/javascript">
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RED.nodes.registerType('mongodb out',{
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category: 'storage-output',
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color:"rgb(218, 196, 180)",
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defaults: {
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mongodb: { type:"mongodb",required:true},
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name: {value:""},
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collection: {value:"",required:true},
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payonly: {value:false}
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},
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inputs:1,
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outputs:0,
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icon: "mongodb.png",
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align: "right",
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label: function() {
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return this.name||((this.mongodb)?RED.nodes.node(this.mongodb).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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}
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});
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</script>
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<script type="text/x-red" data-template-name="mongodb in">
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<div class="form-row">
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<label for="node-input-mongodb"><i class="icon-tag"></i> Server</label>
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<input type="text" id="node-input-mongodb">
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@ -64,16 +108,17 @@
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<label for="node-input-name"><i class="icon-tag"></i> Name</label>
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<input type="text" id="node-input-name" placeholder="Name">
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</div>
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</script>
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<script type="text/x-red" data-help-name="mongodb out">
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<p>A MongoDB output node.</p>
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<script type="text/x-red" data-help-name="mongodb in">
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<p>Queries a MongoDB collection by using the <b>msg.payload</b> to be a MongoDB query statement as per the .find() function.</p>
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<p>You may also (via a function) set a <b>msg.projection</b> object to constrain the returned fields, a <b>msg.sort</b> object and a <b>msg.limit</b> object.</p>
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<p>All are optional - see the <a href="http://docs.mongodb.org/manual/reference/method/db.collection.find/" target="new"><i>MongoDB find docs</i></a> for examples.
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</script>
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<script type="text/javascript">
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RED.nodes.registerType('mongodb out',{
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category: 'storage-output',
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RED.nodes.registerType('mongodb in',{
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category: 'storage-input',
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color:"rgb(218, 196, 180)",
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defaults: {
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mongodb: { type:"mongodb",required:true},
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@ -81,11 +126,13 @@
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collection: {value:"",required:true},
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},
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inputs:1,
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outputs:0,
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outputs:1,
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icon: "mongodb.png",
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align: "right",
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label: function() {
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return this.name||this.collection||((this.mongodb)?RED.nodes.node(this.mongodb).label():"mongodb");
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return this.name||((this.mongodb)?RED.nodes.node(this.mongodb).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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}
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});
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</script>
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@ -30,25 +30,26 @@ function MongoOutNode(n) {
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RED.nodes.createNode(this,n);
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this.collection = n.collection;
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this.mongodb = n.mongodb;
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this.payonly = n.payonly || false;
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this.mongoConfig = RED.nodes.getNode(this.mongodb);
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if (this.mongoConfig) {
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var node = this;
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this.clientDb = new mongo.Db(node.mongoConfig.db, new mongo.Server(node.mongoConfig.hostname, node.mongoConfig.port, {}), {w: 1});
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this.clientDb.open(function(err,cli) {
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if (err) { node.error(err); }
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else {
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node.clientDb.collection(node.collection,function(err,coll) {
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if (err) { node.error(err); }
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else {
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node.on("input",function(msg) {
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delete msg._topic;
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coll.save(msg,function(err,item){if (err){node.error(err);}});
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});
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}
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});
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}
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if (err) { node.error(err); }
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else {
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node.clientDb.collection(node.collection,function(err,coll) {
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if (err) { node.error(err); }
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else {
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node.on("input",function(msg) {
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delete msg._topic;
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if (node.payonly) coll.save(msg.payload,function(err,item){if (err){node.error(err);}});
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else coll.save(msg,function(err,item){if (err){node.error(err);}});
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});
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}
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});
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}
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});
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} else {
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this.error("missing mongodb configuration");
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@ -63,4 +64,45 @@ MongoOutNode.prototype.close = function() {
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}
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}
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function MongoInNode(n) {
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RED.nodes.createNode(this,n);
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this.collection = n.collection;
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this.mongodb = n.mongodb;
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this.mongoConfig = RED.nodes.getNode(this.mongodb);
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if (this.mongoConfig) {
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var node = this;
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this.clientDb = new mongo.Db(node.mongoConfig.db, new mongo.Server(node.mongoConfig.hostname, node.mongoConfig.port, {}), {w: 1});
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this.clientDb.open(function(err,cli) {
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if (err) { node.error(err); }
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else {
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node.clientDb.collection(node.collection,function(err,coll) {
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if (err) { node.error(err); }
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else {
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node.on("input",function(msg) {
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msg.projection = msg.projection || {};
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coll.find(msg.payload,msg.projection).sort(msg.sort).limit(msg.limit).toArray(function(err, items) {
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if (err) { node.error(err); }
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msg.payload = items;
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delete msg.projection;
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delete msg.sort;
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delete msg.limit;
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node.send(msg);
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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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} else {
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this.error("missing mongodb configuration");
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}
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}
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RED.nodes.registerType("mongodb in",MongoInNode);
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MongoInNode.prototype.close = function() {
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if (this.clientDb) {
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this.clientDb.close();
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}
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}
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