mirror of https://github.com/node-red/node-red.git
62 lines
1.9 KiB
JavaScript
62 lines
1.9 KiB
JavaScript
/**
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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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module.exports = function(RED) {
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"use strict";
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var mustache = require("mustache");
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function TemplateNode(n) {
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RED.nodes.createNode(this,n);
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this.name = n.name;
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this.field = n.field || "payload";
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this.template = n.template;
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var node = this;
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var b = node.field.split(".");
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var i = 0;
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var m = null;
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var rec = function(obj) {
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i += 1;
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if ((i < b.length) && (typeof obj[b[i-1]] === "object")) {
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rec(obj[b[i-1]]); // not there yet - carry on digging
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}
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else {
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if (i === b.length) { // we've finished so assign the value
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obj[b[i-1]] = mustache.render(node.template,m);
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node.send(m);
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}
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else {
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obj[b[i-1]] = {}; // needs to be a new object so create it
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rec(obj[b[i-1]]); // and carry on digging
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}
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}
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}
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node.on("input", function(msg) {
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try {
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m = msg;
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i = 0;
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rec(msg);
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} catch(err) {
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node.error(err.message);
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}
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});
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}
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RED.nodes.registerType("template",TemplateNode);
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RED.library.register("templates");
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}
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