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allow id and name reference in function node code (#1731)

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This commit is contained in:
Hiroyasu Nishiyama 2018-05-21 19:34:56 +09:00 committed by Nick O'Leary
parent d4d9190919
commit af1ea610ea
3 changed files with 38 additions and 0 deletions
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6
nodes/core/core/80-function.html
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@ -52,6 +52,12 @@
<p>The Catch node can also be used to handle errors. To invoke a Catch node,
pass <code>msg</code> as a second argument to <code>node.error</code>:</p>
<pre>node.error("Error",msg);</pre>
<h4>Referring Node Information</h4>
<p>In the function block, id and name of the node can be referenced using the following properties:</p>
<ul>
<li><code>node.id</code> - id of the node</li>
<li><code>node.name</code> - name of the node</li>
</ul>
</script>
<script type="text/javascript">

4
nodes/core/core/80-function.js
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@ -62,6 +62,8 @@ module.exports = function(RED) {
"results = (function(msg){ "+
"var __msgid__ = msg._msgid;"+
"var node = {"+
"id:__node__.id,"+
"name:__node__.name,"+
"log:__node__.log,"+
"error:__node__.error,"+
"warn:__node__.warn,"+
@ -84,6 +86,8 @@ module.exports = function(RED) {
util: RED.util
},
__node__: {
id: node.id,
name: node.name,
log: function() {
node.log.apply(node, arguments);
},

28
test/nodes/core/core/80-function_spec.js
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@ -508,6 +508,34 @@ describe('function node', function() {
});
});
it('should allow accessing node.id', function(done) {
var flow = [{id:"n1",type:"function",wires:[["n2"]],func:"msg.payload = node.id; return msg;"},
{id:"n2", type:"helper"}];
helper.load(functionNode, flow, function() {
var n1 = helper.getNode("n1");
var n2 = helper.getNode("n2");
n2.on("input", function(msg) {
msg.should.have.property('payload', n1.id);
done();
});
n1.receive({payload:"foo",topicb: "bar"});
});
});
it('should allow accessing node.name', function(done) {
var flow = [{id:"n1",type:"function",wires:[["n2"]],func:"msg.payload = node.name; return msg;", "name":"name of node"},
{id:"n2", type:"helper"}];
helper.load(functionNode, flow, function() {
var n1 = helper.getNode("n1");
var n2 = helper.getNode("n2");
n2.on("input", function(msg) {
msg.should.have.property('payload', n1.name);
done();
});
n1.receive({payload:"foo",topicb: "bar"});
});
});
describe('Logger', function () {
it('should log an Info Message', function (done) {
var flow = [{id: "n1", type: "function", wires: [["n2"]], func: "node.log('test');"}];