DataSchema Utility: DataSchema.XML for XML Data
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+ DataSchema.XML normalizes arbitrary XML data against a given schema into an object with known properties.
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+ In order to use DataSchema.XML, input data must be an XML document.
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YUI().use("datatype-xml", "dataschema-xml", function(Y) { + var data_in = Y.DataType.XML.parse('<root><session>34637542</session><category name="music" id="5"><results><song id="59672468"><title>I Kissed A Girl</title><rank>1</rank><artist id="30326214">Katy Perry</artist></song><song id="47973564"><title>Shake It</title><rank>2</rank><artist id="45575683">Metro Station</artist></song><song id="52207363"><title>Bleeding Love</title><rank>3</rank><artist id="37956508">Leona Lewis</artist></song></results></category></root>'), + schema = { + resultListLocator: "song", + // Or simply ["title", "artist", "rank"] + resultFields: [{key:"title"}, {key:"artist"}, {key:"rank"}] + }, + data_out = Y.DataSchema.XML.apply(schema, data_in)); + + alert(data_out); +});
The data itself can get fairly complex, with deeply nested nodes and values held in attributes. In your schema, you can use XPath notation to define these locations.
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YUI().use("datatype-xml", "dataschema-xml", function(Y) { + var data_in = Y.DataType.XML.parse('<Response><Session>542235629</Session><Tracks start="1" count="10" total="98" errorCount="0" defaultSort="popularity+" description="Top 100 Tracks" name="Top 100 Tracks" ><Track id="59672468" rating="-1" title="I Kissed A Girl"><Artist id="30326214" rating="-1">Katy Perry</Artist><ItemInfo><ChartPosition last="26" this="1"/></ItemInfo></Track><Track id="47973564" rating="-1" title="Shake It"><Artist id="45575683" rating="-1">Metro Station</Artist><ItemInfo><ChartPosition last="27" this="2"/></ItemInfo></Track><Track id="52207363" rating="-1" title="Bleeding Love"><Artist id="37956508" rating="-1">Leona Lewis</Artist><ItemInfo><ChartPosition last="28" this="3"/></ItemInfo></Track></Tracks></Response>'), + schema = { + metaFields: {session:"//Session", total:"//Tracks/@total"}, + resultListLocator: "Track", + resultFields: [ + {key:"song", locator:"@title"}, + {key:"artist", locator:"Artist"}, + {key:"rank", locator:"ItemInfo/ChartPosition/@this"} + ] + }, + data_out = Y.DataSchema.XML.apply(schema, data_in)); + + alert(data_out); +});
