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Code Issues Releases Wiki Activity

Added multi-level property functionality

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This commit is contained in:
Anna Thomas 2014-10-03 16:12:24 +01:00
parent 4f496c37be
commit 97e5c2e571
2 changed files with 35 additions and 39 deletions
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10
nodes/core/logic/15-change.html
View File

@ -36,7 +36,7 @@
<div class="form-row" id="node-reg-row"> <div class="form-row" id="node-reg-row">
<label>&nbsp;</label> <label>&nbsp;</label>
<input type="checkbox" id="node-input-reg" style="display: inline-block; width: auto; vertical-align: top;"> <input type="checkbox" id="node-input-reg" style="display: inline-block; width: auto; vertical-align: top;">
<label for="node-input-reg" style="width: 70%;">Use regular expressions ?</label> <label for="node-input-reg" style="width: 70%;">Use regular expressions</label>
</div> </div>
<div class="form-tips" id="node-tip"></div> <div class="form-tips" id="node-tip"></div>
<br/> <br/>
@ -47,10 +47,10 @@
</script> </script>
<script type="text/x-red" data-help-name="change"> <script type="text/x-red" data-help-name="change">
<p>A simple function node to change, replace, add or delete properties of a message.</p> <p>A simple function node to set, replace or delete properties of a message.</p>
<p>When a message arrives, the selected property is modified by the defined rules. <p>When a message arrives, the selected property is modified by the defined rules.
The message is then sent to the output.</p> The message is then sent to the output.</p>
<p><b>Note:</b> Replace only operates on <b>strings</b>. Anything else will be passed straight through.</p> <p><b>Note:</b> Set and replace only operate using <b>strings</b>. Anything else will be passed straight through.</p>
</script> </script>
<script type="text/javascript"> <script type="text/javascript">
@ -82,8 +82,10 @@
if (this.name) { if (this.name) {
return this.name; return this.name;
} }
if (this.action == "replace") { if (this.action === "replace") {
return "set msg."+this.property; return "set msg."+this.property;
} else if (this.action === "change") {
return "replace msg."+this.property;
} else { } else {
return this.action+" msg."+this.property return this.action+" msg."+this.property
} }

64
nodes/core/logic/15-change.js
View File

@ -20,55 +20,49 @@ module.exports = function(RED) {
RED.nodes.createNode(this, n); RED.nodes.createNode(this, n);
this.action = n.action; this.action = n.action;
this.property = n.property || ""; this.property = n.property || "";
this.from = n.from || " "; this.from = n.from || "";
this.to = n.to || " "; this.to = n.to || "";
this.reg = (n.reg === null || n.reg); this.reg = (n.reg === null || n.reg);
var node = this; var node = this;
if (node.reg === false) { if (node.reg === false) {
this.from = this.from.replace(/[-[\]{}()*+?.,\\^$|#\s]/g, "\\$&"); this.from = this.from.replace(/[-[\]{}()*+?.,\\^$|#\s]/g, "\\$&");
} }
var makeNew = function( stem, path, value ) {
var lastPart = (arguments.length === 3) ? path.pop() : false;
for (var i = 0; i < path.length; i++) {
stem = stem[path[i]] = stem[path[i]] || {};
}
if (lastPart) { stem = stem[lastPart] = value; }
return stem;
};
this.on('input', function (msg) { this.on('input', function (msg) {
if (node.action == "change") { var propertyParts;
var depth = 0;
if (node.action === "change") {
try { try {
node.re = new RegExp(this.from, "g"); node.re = new RegExp(this.from, "g");
} catch (e) { } catch (e) {
node.error(e.message); node.error(e.message);
} }
if (typeof msg[node.property] === "string") {
msg[node.property] = (msg[node.property]).replace(node.re, node.to);
}
}
//else if (node.action == "replace") {
//if (node.to.indexOf("msg.") == 0) {
//msg[node.property] = eval(node.to);
//}
//else {
//msg[node.property] = node.to;
//}
//}
else if (node.action == "replace") {
if (node.to.indexOf("msg.") === 0) {
makeNew( msg, node.property.split("."), eval(node.to) );
}
else {
makeNew( msg, node.property.split("."), node.to );
}
//makeNew( msg, node.property.split("."), node.to );
}
else if (node.action == "delete") {
delete(msg[node.property]);
} }
propertyParts = node.property.split(".");
try {
propertyParts.reduce(function (obj, i) {
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") {
obj[i] = node.to;
} else if (node.action === "delete") {
delete(obj[i]);
}
} else {
if (!obj[i]) {
obj[i] = {};
}
return obj[i];
}
}, msg);
} catch (err) {}
node.send(msg); node.send(msg);
}); });
} }
RED.nodes.registerType("change", ChangeNode); RED.nodes.registerType("change", ChangeNode);
} };