mirror of
https://github.com/node-red/node-red.git
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Add multi-rule support to Change node
This commit is contained in:
Nick O'Leary
parent
5610a3184e
commit
f0139f9808
@ -1,5 +1,5 @@
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<!--
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Copyright 2013 IBM Corp.
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Copyright 2013, 2015 IBM Corp.
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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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@ -15,42 +15,34 @@
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-->
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<script type="text/x-red" data-template-name="change">
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<div>
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<select id="node-input-action" style="width:95%; margin-right:5px;">
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<option value="replace">Set the value of the message property</option>
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<option value="change">Search/replace the value of the message property</option>
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<option value="delete">Delete the message property</option>
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</select>
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</div>
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<div class="form-row" style="padding-top:10px;" id="node-prop1-row">
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<label for="node-input-property">called</label> msg.<input type="text" id="node-input-property" style="width: 63%;"/>
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</div>
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<div class="form-row" id="node-from-row">
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<label for="node-input-from" id="node-input-f"></label>
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<input type="text" id="node-input-from" placeholder="this"/>
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</div>
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<div class="form-row" id="node-to-row">
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<label for="node-input-to" id="node-input-t"></label>
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<input type="text" id="node-input-to" placeholder="that"/>
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</div>
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<div class="form-row" id="node-reg-row">
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<label> </label>
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<input type="checkbox" id="node-input-reg" style="display: inline-block; width: auto; vertical-align: top;">
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<label for="node-input-reg" style="width: 70%;">Use regular expressions</label>
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</div>
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<div class="form-tips" id="node-tip"></div>
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<br/>
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<div class="form-row">
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<label for="node-input-name"><i class="fa fa-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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<div class="form-row" style="margin-bottom:0;">
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<label><i class="fa fa-list"></i> Rules</label>
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</div>
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<div class="form-row node-input-rule-container-row" style="margin-bottom: 0px;">
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<div id="node-input-rule-container-div" style="box-sizing: border-box; border-radius: 5px; height: 300px; padding: 5px; border: 1px solid #ccc; overflow-y:scroll;">
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<ol id="node-input-rule-container" style=" list-style-type:none; margin: 0;"></ol>
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</div>
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</div>
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<div class="form-row">
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<a href="#" class="btn btn-mini" id="node-input-add-rule" style="margin-top: 4px;"><i class="fa fa-plus"></i> rule</a>
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</div>
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</script>
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<script type="text/x-red" data-help-name="change">
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<p>A simple function node to set, replace or delete properties of a message.</p>
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<p>When a message arrives, the selected property is modified by the defined rules.
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The message is then sent to the output.</p>
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<p><b>Note:</b> Set and replace only operate using <b>strings</b>. Anything else will be passed straight through.</p>
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<p>Set, change or delete properties of a message.</p>
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<p>The node can specify multiple rules that will be applied to the message in turn.</p>
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<p>The available operations are:</p>
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<ul>
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<li><b>Set</b> - set a property. The <b>to</b> property can either be a string value, or reference
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another message property by name, for example: <code>msg.topic</code>.</li>
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<li><b>Change</b> - search & replace parts of the property. If regular expressions
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are enabled, the <b>replace with</b> property can include capture groups, for example <code>$1</code></li>
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<li><b>Delete</b> - delete a property.</li>
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</ul>
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</script>
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<script type="text/javascript">
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@ -58,24 +50,14 @@
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color: "#E2D96E",
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category: 'function',
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defaults: {
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action: {value:"replace",required:true},
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property: {value:"payload",required:true},
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from: {value:"",validate: function(v) {
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if (this.action === "change" && !this.from) {
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return false;
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} else if (this.action === "change" && this.reg) {
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try {
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var re = new RegExp(this.from, "g");
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return true;
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} catch(err) {
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return false;
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}
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}
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return true;
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}},
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name: {value:""},
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rules:{value:[{t:"set",p:"payload",to:""}]},
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// legacy
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action: {value:""},
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property: {value:""},
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from: {value:""},
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to: {value:""},
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reg: {value:false},
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name: {value:""}
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reg: {value:false}
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},
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inputs: 1,
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outputs: 1,
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@ -84,12 +66,26 @@
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if (this.name) {
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return this.name;
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}
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if (this.action === "replace") {
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return "set msg."+this.property;
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} else if (this.action === "change") {
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return "replace msg."+this.property;
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if (!this.rules) {
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if (this.action === "replace") {
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return "set msg."+this.property;
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} else if (this.action === "change") {
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return "change msg."+this.property;
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} else {
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return this.action+" msg."+this.property
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}
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} else {
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return this.action+" msg."+this.property
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if (this.rules.length == 1) {
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if (this.rules[0].t === "set") {
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return "set msg."+this.rules[0].p;
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} else if (this.rules[0].t === "change") {
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return "change msg."+this.rules[0].p;
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} else {
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return "delete msg."+this.rules[0].p;
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}
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} else {
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return "change: "+(this.rules.length||"no")+" rules";
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}
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}
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},
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labelStyle: function() {
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@ -97,47 +93,155 @@
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},
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oneditprepare: function() {
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if (this.reg === null) { $("#node-input-reg").prop('checked', true); }
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$("#node-input-action").change( function() {
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var a = $("#node-input-action").val();
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if (a === "replace") {
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$("#node-input-todo").html("called");
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//$("#node-input-f").html("name");
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$("#node-input-t").html("to");
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$("#node-from-row").hide();
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$("#node-to-row").show();
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$("#node-reg-row").hide();
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$("#node-tip").show();
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$("#node-tip").html("Tip: expects a new property name and either a fixed value OR the full name of another message property eg: msg.sentiment.score");
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}
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if (a === "delete") {
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$("#node-input-todo").html("called");
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//$("#node-input-f").html("called");
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//$("#node-input-t").html("to");
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$("#node-from-row").hide();
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$("#node-to-row").hide();
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$("#node-reg-row").hide();
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$("#node-tip").hide();
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}
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if (a === "change") {
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$("#node-input-todo").html("called");
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$("#node-input-f").html("Search for");
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$("#node-input-t").html("replace with");
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$("#node-from-row").show();
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$("#node-to-row").show();
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$("#node-reg-row").show();
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$("#node-tip").show();
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$("#node-tip").html("Tip: only works on string properties. If regular expressions are used, the <i>replace with</i> field can contain capture results, eg $1.");
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}
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//if (a === "replace") {
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// $("#node-input-todo").html("called");
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// //$("#node-input-f").html("with");
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// $("#node-input-t").html("with");
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// $("#node-from-row").hide();
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// $("#node-to-row").show();
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// $("#node-tip").html("Tip: accepts either a fixed value OR the full name of another msg.property eg: msg.sentiment.score");
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//}
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});
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$("#node-input-action").change();
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function generateRule(rule) {
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var container = $('<li/>',{style:"background: #fff; margin:0; padding:8px 0px; border-bottom: 1px solid #ccc;"});
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var row1 = $('<div/>').appendTo(container);
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var row2 = $('<div/>',{style:"margin-top:8px;"}).appendTo(container);
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var row3 = $('<div/>',{style:"margin-top:8px;"}).appendTo(container);
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var selectField = $('<select/>',{class:"node-input-rule-type",style:"width: 100px"}).appendTo(row1);
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var selectOptions = [{v:"set",l:"Set"},{v:"change",l:"Change"},{v:"delete",l:"Delete"}];
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for (var i=0;i<3;i++) {
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selectField.append($("<option></option>").val(selectOptions[i].v).text(selectOptions[i].l));
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}
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$('<div/>',{style:"display:inline-block; width: 50px; text-align: right;"}).text("msg.").appendTo(row1);
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var propertyName = $('<input/>',{style:"width: 220px",class:"node-input-rule-property-name",type:"text"}).appendTo(row1);
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var finalspan = $('<span/>',{style:"float: right; margin-top: 3px;margin-right: 10px;"}).appendTo(row1);
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var deleteButton = $('<a/>',{href:"#",class:"btn btn-mini", style:"margin-left: 5px;"}).appendTo(finalspan);
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$('<i/>',{class:"fa fa-remove"}).appendTo(deleteButton);
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$('<div/>',{style:"display: inline-block;text-align:right; width:150px;padding-right: 10px; box-sizing: border-box;"}).text("to").appendTo(row2);
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var propertyValue = $('<input/>',{style:"width: 220px",class:"node-input-rule-property-value",type:"text"}).appendTo(row2);
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var row3_1 = $('<div/>').appendTo(row3);
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$('<div/>',{style:"display: inline-block;text-align:right; width:150px;padding-right: 10px; box-sizing: border-box;"}).text("Search for").appendTo(row3_1);
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var fromValue = $('<input/>',{style:"width: 220px",class:"node-input-rule-property-search-value",type:"text"}).appendTo(row3_1);
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var row3_2 = $('<div/>',{style:"margin-top:8px;"}).appendTo(row3);
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$('<div/>',{style:"display: inline-block;text-align:right; width:150px;padding-right: 10px; box-sizing: border-box;"}).text("replace with").appendTo(row3_2);
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var toValue = $('<input/>',{style:"width: 220px",class:"node-input-rule-property-replace-value",type:"text"}).appendTo(row3_2);
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var row3_3 = $('<div/>',{style:"margin-top:8px;"}).appendTo(row3);
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var id = "node-input-rule-property-regex-"+Math.floor(Math.random()*10000);
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var useRegExp = $('<input/>',{id:id,class:"node-input-rule-property-re",type:"checkbox", style:"margin-left: 150px; margin-right: 10px; display: inline-block; width: auto; vertical-align: top;"}).appendTo(row3_3);
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$('<label/>',{for:id,style:"width: auto;"}).text("Use regular expressions").appendTo(row3_3);
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selectField.change(function() {
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var type = $(this).val();
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if (type == "set") {
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row2.show();
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row3.hide();
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} else if (type == "change") {
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row2.hide();
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row3.show();
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} else if (type == "delete") {
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row2.hide();
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row3.hide();
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$("#node-tip").hide();
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}
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});
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deleteButton.click(function() {
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container.css({"background":"#fee"});
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container.fadeOut(300, function() {
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$(this).remove();
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});
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});
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selectField.find("option").filter(function() {return $(this).val() == rule.t;}).attr('selected',true);
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propertyName.val(rule.p);
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propertyValue.val(rule.to);
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fromValue.val(rule.from);
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toValue.val(rule.to);
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useRegExp.prop('checked', rule.re);
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selectField.change();
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$("#node-input-rule-container").append(container);
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}
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$("#node-input-add-rule").click(function() {
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generateRule({t:"replace",p:"payload"});
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});
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if (!this.rules) {
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var rule = {
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t:(this.action=="replace"?"set":this.action),
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p:this.property
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}
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if (rule.t === "set") {
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rule.to = this.to;
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} else if (rule.t === "change") {
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rule.from = this.from;
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rule.to = this.to;
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rule.re = this.reg;
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}
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delete this.to;
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delete this.from;
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delete this.reg;
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delete this.action;
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delete this.property;
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this.rules = [rule];
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}
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for (var i=0;i<this.rules.length;i++) {
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generateRule(this.rules[i]);
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}
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function changeDialogResize() {
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var rows = $("#dialog-form>div:not(.node-input-rule-container-row)");
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var height = $("#dialog-form").height();
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for (var i=0;i<rows.size();i++) {
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height -= $(rows[i]).outerHeight(true);
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}
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var editorRow = $("#dialog-form>div.node-input-rule-container-row");
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height -= (parseInt(editorRow.css("marginTop"))+parseInt(editorRow.css("marginBottom")));
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$("#node-input-rule-container-div").css("height",height+"px");
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};
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$( "#dialog" ).on("dialogresize", changeDialogResize);
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$( "#dialog" ).one("dialogopen", function(ev) {
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var size = $( "#dialog" ).dialog('option','sizeCache-change');
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if (size) {
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$("#dialog").dialog('option','width',size.width);
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$("#dialog").dialog('option','height',size.height);
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changeDialogResize();
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}
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});
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$( "#dialog" ).one("dialogclose", function(ev,ui) {
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$( "#dialog" ).off("dialogresize",changeDialogResize);
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});
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},
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oneditsave: function() {
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var rules = $("#node-input-rule-container").children();
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var ruleset;
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var node = this;
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node.rules= [];
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rules.each(function(i) {
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var rule = $(this);
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var type = rule.find(".node-input-rule-type option:selected").val();
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var r = {
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t:type,
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p:rule.find(".node-input-rule-property-name").val()
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};
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if (type === "set") {
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r.to = rule.find(".node-input-rule-property-value").val();
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} else if (type === "change") {
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r.from = rule.find(".node-input-rule-property-search-value").val();
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r.to = rule.find(".node-input-rule-property-replace-value").val();
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r.re = rule.find(".node-input-rule-property-re").prop('checked');
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}
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node.rules.push(r);
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});
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}
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});
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</script>
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@ -1,5 +1,5 @@
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/**
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* Copyright 2013 IBM Corp.
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* Copyright 2013, 2015 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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@ -19,71 +19,99 @@ module.exports = function(RED) {
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function ChangeNode(n) {
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RED.nodes.createNode(this, n);
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this.action = n.action;
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this.property = n.property || "";
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this.from = n.from || "";
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this.to = n.to || "";
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this.reg = (n.reg === null || n.reg);
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if (this.reg === false) {
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this.from = this.from.replace(/[-[\]{}()*+?.,\\^$|#\s]/g, "\\$&");
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this.rules = n.rules;
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if (!this.rules) {
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var rule = {
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t:(n.action=="replace"?"set":n.action),
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p:n.property||""
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}
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if (rule.t === "set") {
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rule.to = n.to||"";
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} else if (rule.t === "change") {
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rule.from = n.from||"";
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rule.to = n.to||"";
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rule.re = (n.reg===null||n.reg);
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}
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this.rules = [rule];
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}
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this.actions = [];
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var valid = true;
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if (this.action === "change") {
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try {
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this.re = new RegExp(this.from, "g");
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} catch (e) {
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valid = false;
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this.error("Invalid 'from' property: "+e.message);
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for (var i=0;i<this.rules.length;i++) {
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var rule = this.rules[i];
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if (rule.t === "change") {
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if (rule.re === false) {
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rule.from = rule.from.replace(/[-[\]{}()*+?.,\\^$|#\s]/g, "\\$&");
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}
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try {
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rule.from = new RegExp(rule.from, "g");
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} catch (e) {
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valid = false;
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this.error("Invalid 'from' property: "+e.message);
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}
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}
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}
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function applyRule(msg,rule) {
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var propertyParts;
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var depth = 0;
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propertyParts = rule.p.split(".");
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try {
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propertyParts.reduce(function(obj, i) {
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var to = rule.to;
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// Set msg from property to another msg property
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if (rule.t === "set" && rule.to.indexOf("msg.") === 0) {
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var parts = to.substring(4);
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var msgPropParts = parts.split(".");
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try {
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msgPropParts.reduce(function(ob, j) {
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to = (typeof ob[j] !== "undefined" ? ob[j] : undefined);
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return to;
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}, msg);
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} catch (err) {}
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}
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if (++depth === propertyParts.length) {
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if (rule.t === "change") {
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if (typeof obj[i] === "string") {
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obj[i] = obj[i].replace(rule.from, rule.to);
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}
|
||||
} else if (rule.t === "set") {
|
||||
if (typeof to === "undefined") {
|
||||
delete(obj[i]);
|
||||
} else {
|
||||
obj[i] = to;
|
||||
}
|
||||
} else if (rule.t === "delete") {
|
||||
delete(obj[i]);
|
||||
}
|
||||
} else {
|
||||
// to property doesn't exist, don't create empty object
|
||||
if (typeof to === "undefined") {
|
||||
return;
|
||||
// setting a non-existent multilevel object, create empty parent
|
||||
} else if (!obj[i]) {
|
||||
obj[i] = {};
|
||||
}
|
||||
return obj[i];
|
||||
}
|
||||
}, msg);
|
||||
} catch (err) {}
|
||||
return msg;
|
||||
}
|
||||
|
||||
if (valid) {
|
||||
var node = this;
|
||||
this.on('input', function(msg) {
|
||||
var propertyParts;
|
||||
var depth = 0;
|
||||
|
||||
propertyParts = node.property.split(".");
|
||||
try {
|
||||
propertyParts.reduce(function(obj, i) {
|
||||
var to = node.to;
|
||||
// Set msg from property to another msg property
|
||||
if (node.action === "replace" && node.to.indexOf("msg.") === 0) {
|
||||
var parts = to.substring(4);
|
||||
var msgPropParts = parts.split(".");
|
||||
try {
|
||||
msgPropParts.reduce(function(ob, j) {
|
||||
to = (typeof ob[j] !== "undefined" ? ob[j] : undefined);
|
||||
return to;
|
||||
}, msg);
|
||||
} catch (err) {}
|
||||
}
|
||||
|
||||
if (++depth === propertyParts.length) {
|
||||
if (node.action === "change") {
|
||||
if (typeof obj[i] === "string") {
|
||||
obj[i] = obj[i].replace(node.re, node.to);
|
||||
}
|
||||
} else if (node.action === "replace") {
|
||||
if (typeof to === "undefined") {
|
||||
delete(obj[i]);
|
||||
} else {
|
||||
obj[i] = to;
|
||||
}
|
||||
} else if (node.action === "delete") {
|
||||
delete(obj[i]);
|
||||
}
|
||||
} else {
|
||||
// to property doesn't exist, don't create empty object
|
||||
if (typeof to === "undefined") {
|
||||
return;
|
||||
// setting a non-existent multilevel object, create empty parent
|
||||
} else if (!obj[i]) {
|
||||
obj[i] = {};
|
||||
}
|
||||
return obj[i];
|
||||
}
|
||||
}, msg);
|
||||
} catch (err) {}
|
||||
for (var i=0;i<this.rules.length;i++) {
|
||||
msg = applyRule(msg,this.rules[i]);
|
||||
}
|
||||
node.send(msg);
|
||||
});
|
||||
}
|
||||
|
||||
@ -271,6 +271,8 @@ RED.editor = (function() {
|
||||
var minWidth = $(this).dialog('option','minWidth');
|
||||
if ($(this).outerWidth() < minWidth) {
|
||||
$(this).dialog('option','width',minWidth);
|
||||
} else {
|
||||
$(this).dialog('option','width',$(this).outerWidth());
|
||||
}
|
||||
RED.keyboard.disable();
|
||||
if (editing_node) {
|
||||
|
||||
@ -1,5 +1,5 @@
|
||||
/**
|
||||
* Copyright 2014 IBM Corp.
|
||||
* Copyright 2014, 2015 IBM Corp.
|
||||
*
|
||||
* Licensed under the Apache License, Version 2.0 (the "License");
|
||||
* you may not use this file except in compliance with the License.
|
||||
@ -34,15 +34,6 @@ describe('ChangeNode', function() {
|
||||
});
|
||||
|
||||
describe('#replace' , function() {
|
||||
it('should be loaded', function(done) {
|
||||
var flow = [{"id":"changeNode1","type":"change","action":"replace","property":"payload","from":"","to":"","reg":false,"name":"changeNode","wires":[[]]}];
|
||||
helper.load(changeNode, flow, function() {
|
||||
var changeNode1 = helper.getNode("changeNode1");
|
||||
changeNode1.should.have.property('name', 'changeNode');
|
||||
done();
|
||||
});
|
||||
});
|
||||
|
||||
it('sets the value of the message property', function(done) {
|
||||
var flow = [{"id":"changeNode1","type":"change","action":"replace","property":"payload","from":"","to":"changed","reg":false,"name":"changeNode","wires":[["helperNode1"]]},
|
||||
{id:"helperNode1", type:"helper", wires:[]}];
|
||||
@ -223,7 +214,6 @@ describe('ChangeNode', function() {
|
||||
});
|
||||
});
|
||||
});
|
||||
|
||||
describe('#change', function() {
|
||||
it('changes the value of the message property', function(done) {
|
||||
var flow = [{"id":"changeNode1","type":"change","action":"change","property":"payload","from":"Hello","to":"Goodbye","reg":false,"name":"changeNode","wires":[["helperNode1"]]},
|
||||
@ -426,5 +416,61 @@ describe('ChangeNode', function() {
|
||||
});
|
||||
});
|
||||
});
|
||||
});
|
||||
describe('- multiple rules', function() {
|
||||
|
||||
it('handles multiple rules', function(done) {
|
||||
var flow = [{"id":"changeNode1","type":"change","wires":[["helperNode1"]],
|
||||
rules:[
|
||||
{t:"set",p:"payload",to:"newValue"},
|
||||
{t:"change",p:"changeProperty",from:"this",to:"that"},
|
||||
{t:"delete",p:"deleteProperty"}
|
||||
]},
|
||||
{id:"helperNode1", type:"helper", wires:[]}];
|
||||
helper.load(changeNode, flow, function() {
|
||||
var changeNode1 = helper.getNode("changeNode1");
|
||||
var helperNode1 = helper.getNode("helperNode1");
|
||||
helperNode1.on("input", function(msg) {
|
||||
try {
|
||||
msg.payload.should.equal("newValue");
|
||||
msg.changeProperty.should.equal("change that value");
|
||||
should.not.exist(msg.deleteProperty);
|
||||
done();
|
||||
} catch(err) {
|
||||
done(err);
|
||||
}
|
||||
});
|
||||
changeNode1.receive({
|
||||
payload:"changeMe",
|
||||
changeProperty:"change this value",
|
||||
deleteProperty:"delete this value"
|
||||
});
|
||||
});
|
||||
});
|
||||
it('applies multiple rules in order', function(done) {
|
||||
var flow = [{"id":"changeNode1","type":"change","wires":[["helperNode1"]],
|
||||
rules:[
|
||||
{t:"set",p:"payload",to:"a this (hi)"},
|
||||
{t:"change",p:"payload",from:"this",to:"that"},
|
||||
{t:"change",p:"payload",from:"\\(.*\\)",to:"[new]",re:true},
|
||||
]},
|
||||
{id:"helperNode1", type:"helper", wires:[]}];
|
||||
helper.load(changeNode, flow, function() {
|
||||
var changeNode1 = helper.getNode("changeNode1");
|
||||
var helperNode1 = helper.getNode("helperNode1");
|
||||
helperNode1.on("input", function(msg) {
|
||||
try {
|
||||
msg.payload.should.equal("a that [new]");
|
||||
done();
|
||||
} catch(err) {
|
||||
done(err);
|
||||
}
|
||||
});
|
||||
changeNode1.receive({
|
||||
payload:"changeMe"
|
||||
});
|
||||
});
|
||||
});
|
||||
|
||||
});
|
||||
});
|
||||
|
||||
|
||||
Loading…
Reference in New Issue
Block a user