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node-red/nodes/core/80-function.html

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<!--
Copyright 2013 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="function">
<div class="form-row">
<label for="node-input-name"><i class="icon-tag"></i> Name</label>
<input type="text" id="node-input-name" placeholder="Name">
</div>
<div class="form-row">
<label for="node-input-func"><i class="icon-wrench"></i> Function</label>
<input type="hidden" id="node-input-func">
<div style="height: 250px;" class="node-text-editor" id="node-input-func-editor" ></div>
</div>
<div class="form-row">
<label for="node-input-outputs"><i class="icon-random"></i> Outputs</label>
<input id="node-input-outputs" style="width: 60px; height: 1.7em;" value="1">
</div>
</script>
<script type="text/x-red" data-help-name="function">
<p>The generic function block where you can write code to do more interesting things.</p>
<p>You can have multiple outputs - in which case the function expects you to return an array of messages... <pre>return [msg,msg2,...];</pre></p>
<p>You may return null for any or all outputs if you want to.</p>
<p>You can save your functions to a library (button to right of name field) - and likewise pick from that library.</p>
</script>
<script type="text/javascript">
RED.nodes.registerType('function',{
color:"#fdd0a2",
category: 'function',
defaults: {
name: {value:""},
func: {value:"// The received message is stored in 'msg'\n// It will have at least a 'payload' property:\n// console.log(msg.payload);\n// The 'context' object is available to store state\n// between invocations of the function\n// context = {};\n\n\nreturn msg;"},
outputs: {value:1}
},
inputs:1,
outputs:1,
icon: "function.png",
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$( "#dialog" ).off("dialogresize",functionDialogResize);
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contents: $("#node-input-func").val()
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RED.library.create({
url:"functions", // where to get the data from
type:"function", // the type of object the library is for
editor:that.editor, // the field name the main text body goes to
fields:['name','outputs']
});
});
},
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$("#node-input-func").val(this.editor.getText())
delete this.editor;
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