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This file demonstrates how the dojox.wire code can be used to do declarative
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wiring of events on one item to trigger event on other items. It also shows
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how you can use the Transfer object to morph data values from one format to
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another. In this specific case, it maps the values from a dojo.data Datastore
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item into values stored in a JavaScript Array, which is the format required for
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the addRow method of the demonstration TableContainer.
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Note that this demo expects dojo, digit, and dojox to all be peers in the same directory
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in order for it to execute.
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-->
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<html>
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<head>
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<title>Sample Declarative Data Binding using ColumnWire</title>
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<style type="text/css">
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@import "../../../../dijit/themes/tundra/tundra.css";
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@import "../../../../dojo/resources/dojo.css";
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@import "../../../../dijit/tests/css/dijitTests.css";
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@import "../TableContainer.css";
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</style>
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<script type="text/javascript" src="../../../../dojo/dojo.js" djConfig="isDebug: true, parseOnLoad: true"></script>
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<script type="text/javascript">
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dojo.require("dojo.parser");
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dojo.require("dojox.wire.ml.Invocation");
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dojo.require("dojox.wire.ml.DataStore");
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dojo.require("dojox.wire.ml.Transfer");
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dojo.require("dijit._Widget");
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dojo.require("dijit._Templated");
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dojo.require("dojo.data.ItemFileReadStore");
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dojo.require("dojox.wire");
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dojo.require("dojox.wire.demos.TableContainer");
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//Toplevel JS Object to contain a few basics for us, such as the request to pass to the store and a stub onItem function
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// to trap on for triggering other events.
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dataHolder = {
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//Simple object definition to get all items and sort it by the attribute 'type'.
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request: {onItem: function(item){}, sort: [{attribute: "type"}]},
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//Spot to store off data values as they're generated by the declarative binding.
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result: null
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};
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</script>
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</head>
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<body class="tundra">
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<!--
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The store that is queried in this demo
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-->
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<div dojoType="dojo.data.ItemFileReadStore"
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jsId="DataStore1"
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url="countries.json">
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</div>
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<!--
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On load of the page, invoke the fetch method of the object 'DataStore1',
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get its parameters from the JS object 'sample.request
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-->
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<div dojoType="dojox.wire.ml.Invocation"
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triggerEvent="onLoad"
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object="DataStore1" method="fetch" parameters="dataHolder.request"></div>
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<!--
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Simple container widget for creating a 'table from rows defined by an array
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-->
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<div dojoType="dojox.wire.demos.TableContainer" jsId="r1" headers="Name,Location Type"></div>
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On the call of the onItem function of 'dataHolder', trigger a binding/mapping of the
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item's attribute 'name' and 'type' attributes to specific columns in an array. Note here that since
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sourceStore is set, it treats the arguments as items from that store and accesses the attributes
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appropriately. In this case 'name' becomes array entry 0, type, array entry 1, and so on.
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Then take the result of the data mapping and pass it into the invoke of the addRow function on the
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TableContainer widget.
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-->
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<div dojoType="dojox.wire.ml.Action"
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trigger="dataHolder.request" triggerEvent="onItem">
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<div dojoType="dojox.wire.ml.Transfer"
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source="arguments[0]" sourceStore="DataStore1"
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target="dataHolder.result">
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<div dojoType="dojox.wire.ml.ColumnWire" attribute="name"></div>
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<div dojoType="dojox.wire.ml.ColumnWire" attribute="type"></div>
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</div>
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<div dojoType="dojox.wire.ml.Invocation"
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object="r1" method="addRow" parameters='dataHolder.result'>
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</div>
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</div>
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</body>
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</html>
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