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<div id="pagetitle"><h1>YUI Library Examples: DataSchema Utility: DataSchema.JSON</h1></div>
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<h2>DataSchema Utility: DataSchema.JSON</h2>
<div id="example" class="promo">
<div class="example-intro">
DataSchema.JSON normalizes arbitrary JSON data against a given schema into an object with known properties.
</div>
<div class="module example-container ">
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<a href="dataschema_json_clean.html" target="_blank">View example in new window.</a>
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<!--BEGIN SOURCE CODE FOR EXAMPLE =============================== -->
<form id="demo">
<h4>Basic example</h4>
<h6>Data</h6>
<pre>
{
"total":10,
"results":[
{"n":1, "fname":"George", "lname":"Washington"},
{"n":2, "fname":"John", "lname":"Adams"},
{"n":3, "fname":"Thomas", "lname":"Jefferson"},
{"n":4, "fname":"James", "lname":"Madison"},
{"n":5, "fname":"James", "lname":"Monroe"},
{"n":6, "fname":"John", "mname":"Quincy", "lname":"Adams"},
{"n":7, "fname":"Andrew", "lname":"Jackson"},
{"n":8, "fname":"Martin", "lname":"Van Buren"},
{"n":9, "fname":"William", "mname":"Henry", "lname":"Harrison"},
{"n":10, "fname":"John", "lname":"Tyler"}
]
}
</pre>
<h6>Schema</h6>
<pre>
{
metaFields: {total:"total"},
resultListLocator: "results",
resultFields: [{key:"n"}, {key:"fname"}, {key:"lname"}]
}
</pre>
<h6>Normalized data</h6>
<input type="button" id="demo_apply_basic" value="Apply schema =>">
<div id="demo_output_basic" class="output"></div>
<h4>Complex example</h4>
<h6>Data</h6>
<pre>
{
"profile":{
"current":160,
"target":150
},
"reference": [
{
"category":"exercise",
"type":"expenditure",
"activities":[
{"name":"biking", "calories":550},
{"name":"golf", "calories":1000},
{"name":"running", "calories":650},
{"name":"swimming", "calories":650},
{"name":"walking", "calories":225}
]
},
{
"category":"nutrition",
"type":"intake",
"fruit":[
{"name":"apple", "calories":70},
{"name":"banana", "calories":70},
{"name":"orange", "calories":90},
],
"vegetables":[
{"name":"baked potato", "calories":150},
{"name":"broccoli", "calories":50},
{"name":"green beans", "calories":30}
]
}
],
"program": [
{
"category":"exercise",
"schedule":[
{"day":"sunday", "activity":"swimming"},
{"day":"monday", "activity":"running"},
{"day":"tuesday", "activity":"biking"},
{"day":"wednesday", "activity":"running"},
{"day":"thursday", "activity":"swimming"},
{"day":"friday", "activity":"running"},
{"day":"saturday", "activity":"golf"}
]
},
{
"category":"diet",
"schedule":[
]
}
]
}
</pre>
<h6>Schema</h6>
<pre>
{
metaFields: {current:"profile.current", target:"profile.target",
reference:"reference[0].activities"},
resultListLocator: "program[0].schedule",
resultFields: [{key:"day"}, {key:"activity"}]
}
</pre>
<h6>Normalized data</h6>
<input type="button" id="demo_apply_complex" value="Apply schema =>">
<div id="demo_output_complex" class="output"></div>
</form>
<script type="text/javascript">
YUI({base:"../../build/", timeout: 10000}).use("dump", "node", "dataschema-json", function (Y) {
Y.on("click", function(e){
var data_in = {
"total":10,
"results":[
{"n":1, "fname":"George", "lname":"Washington"},
{"n":2, "fname":"John", "lname":"Adams"},
{"n":3, "fname":"Thomas", "lname":"Jefferson"},
{"n":4, "fname":"James", "lname":"Madison"},
{"n":5, "fname":"James", "lname":"Monroe"},
{"n":6, "fname":"John", "mname":"Quincy", "lname":"Adams"},
{"n":7, "fname":"Andrew", "lname":"Jackson"},
{"n":8, "fname":"Martin", "lname":"Van Buren"},
{"n":9, "fname":"William", "mname":"Henry", "lname":"Harrison"},
{"n":10, "fname":"John", "lname":"Tyler"}
]
},
schema = {
metaFields: {total:"total"},
resultListLocator: "results",
resultFields: [{key:"n"}, {key:"fname"}, {key:"lname"}] // Or simply: ["n", "fname", "lname"]
};
Y.get("#demo_output_basic").setContent(Y.dump(Y.DataSchema.JSON.apply(schema, data_in)));
}, "#demo_apply_basic");
Y.on("click", function(e){
var data_in = {
"profile":{
"current":160,
"target":150
},
"reference": [
{
"category":"exercise",
"type":"expenditure",
"activities":[
{"name":"biking", "calories":550},
{"name":"golf", "calories":1000},
{"name":"running", "calories":650},
{"name":"swimming", "calories":650},
{"name":"walking", "calories":225}
]
},
{
"category":"nutrition",
"type":"intake",
"fruit":[
{"name":"apple", "calories":70},
{"name":"banana", "calories":70},
{"name":"orange", "calories":90},
],
"vegetables":[
{"name":"baked potato", "calories":150},
{"name":"broccoli", "calories":50},
{"name":"green beans", "calories":30}
]
}
],
"program": [
{
"category":"exercise",
"weekly schedule":[
{"day":"sunday", "activity":"swimming"},
{"day":"monday", "activity":"running"},
{"day":"tuesday", "activity":"biking"},
{"day":"wednesday", "activity":"running"},
{"day":"thursday", "activity":"swimming"},
{"day":"friday", "activity":"running"},
{"day":"saturday", "activity":"golf"}
]
},
{
"category":"diet",
"schedule":[
]
}
]
},
schema = {
metaFields: {current:"profile.current", target:"profile.target", reference:"reference[0].activities"},
resultListLocator: "program[0]['weekly schedule']",
resultFields: [{key:"day"}, {key:"activity"}] // Or simply: ["day", "activity"]
};
Y.get("#demo_output_complex").setContent(Y.dump(Y.DataSchema.JSON.apply(schema, data_in)));
}, "#demo_apply_complex");
});
</script>
<!--END SOURCE CODE FOR EXAMPLE =============================== -->
</div>
</div>
</div>
<p>In order to use DataSchema.JSON, input data must be a JavaScript object.</p>
<div id="syntax1" class="yui-syntax-highlight"><div class="numbers"><pre class="javascript" style="font-family:monospace;"><ol><li class="li1"><div class="de1">YUI<span class="br0">(</span><span class="br0">)</span>.<span class="kw2">use</span><span class="br0">(</span><span class="st0">"dataschema-json"</span><span class="sy0">,</span> <span class="kw2">function</span><span class="br0">(</span>Y<span class="br0">)</span> <span class="br0">{</span></div></li><li class="li1"><div class="de1"> <span class="kw2">var</span> data_in <span class="sy0">=</span> <span class="br0">{</span></div></li><li class="li1"><div class="de1"> total<span class="sy0">:</span><span class="nu0">10</span><span class="sy0">,</span></div></li><li class="li1"><div class="de1"> results<span class="sy0">:</span><span class="br0">[</span></div></li><li class="li2"><div class="de2"> <span class="br0">{</span>n<span class="sy0">:</span><span class="nu0">1</span><span class="sy0">,</span> fname<span class="sy0">:</span><span class="st0">"George"</span><span class="sy0">,</span> lname<span class="sy0">:</span><span class="st0">"Washington"</span><span class="br0">}</span><span class="sy0">,</span></div></li><li class="li1"><div class="de1"> <span class="br0">{</span>n<span class="sy0">:</span><span class="nu0">2</span><span class="sy0">,</span> fname<span class="sy0">:</span><span class="st0">"John"</span><span class="sy0">,</span> lname<span class="sy0">:</span><span class="st0">"Adams"</span><span class="br0">}</span><span class="sy0">,</span></div></li><li class="li1"><div class="de1"> <span class="br0">{</span>n<span class="sy0">:</span><span class="nu0">3</span><span class="sy0">,</span> fname<span class="sy0">:</span><span class="st0">"Thomas"</span><span class="sy0">,</span> lname<span class="sy0">:</span><span class="st0">"Jefferson"</span><span class="br0">}</span><span class="sy0">,</span></div></li><li class="li1"><div class="de1"> <span class="br0">{</span>n<span class="sy0">:</span><span class="nu0">4</span><span class="sy0">,</span> fname<span class="sy0">:</span><span class="st0">"James"</span><span class="sy0">,</span> lname<span class="sy0">:</span><span class="st0">"Madison"</span><span class="br0">}</span><span class="sy0">,</span></div></li><li class="li1"><div class="de1"> <span class="br0">{</span>n<span class="sy0">:</span><span class="nu0">5</span><span class="sy0">,</span> fname<span class="sy0">:</span><span class="st0">"James"</span><span class="sy0">,</span> lname<span class="sy0">:</span><span class="st0">"Monroe"</span><span class="br0">}</span><span class="sy0">,</span></div></li><li class="li2"><div class="de2"> <span class="br0">{</span>n<span class="sy0">:</span><span class="nu0">6</span><span class="sy0">,</span> fname<span class="sy0">:</span><span class="st0">"John"</span><span class="sy0">,</span> mname<span class="sy0">:</span><span class="st0">"Quincy"</span><span class="sy0">,</span> lname<span class="sy0">:</span><span class="st0">"Adams"</span><span class="br0">}</span><span class="sy0">,</span></div></li><li class="li1"><div class="de1"> <span class="br0">{</span>n<span class="sy0">:</span><span class="nu0">7</span><span class="sy0">,</span> fname<span class="sy0">:</span><span class="st0">"Andrew"</span><span class="sy0">,</span> lname<span class="sy0">:</span><span class="st0">"Jackson"</span><span class="br0">}</span><span class="sy0">,</span></div></li><li class="li1"><div class="de1"> <span class="br0">{</span>n<span class="sy0">:</span><span class="nu0">8</span><span class="sy0">,</span> fname<span class="sy0">:</span><span class="st0">"Martin"</span><span class="sy0">,</span> lname<span class="sy0">:</span><span class="st0">"Van Buren"</span><span class="br0">}</span><span class="sy0">,</span></div></li><li class="li1"><div class="de1"> <span class="br0">{</span>n<span class="sy0">:</span><span class="nu0">9</span><span class="sy0">,</span> fname<span class="sy0">:</span><span class="st0">"William"</span><span class="sy0">,</span> mName<span class="sy0">:</span><span class="st0">"Henry"</span><span class="sy0">,</span> lname<span class="sy0">:</span><span class="st0">"Harrison"</span><span class="br0">}</span><span class="sy0">,</span></div></li><li class="li1"><div class="de1"> <span class="br0">{</span>n<span class="sy0">:</span><span class="nu0">10</span><span class="sy0">,</span> fname<span class="sy0">:</span><span class="st0">"John"</span><span class="sy0">,</span> lname<span class="sy0">:</span><span class="st0">"Tyler"</span><span class="br0">}</span></div></li><li class="li2"><div class="de2"> <span class="br0">]</span></div></li><li class="li1"><div class="de1"> <span class="br0">}</span><span class="sy0">,</span></div></li><li class="li1"><div class="de1"> schema <span class="sy0">=</span> <span class="br0">{</span></div></li><li class="li1"><div class="de1"> metaFields<span class="sy0">:</span> <span class="br0">{</span>total<span class="sy0">:</span><span class="st0">"total"</span><span class="br0">}</span><span class="sy0">,</span></div></li><li class="li1"><div class="de1"> resultListLocator<span class="sy0">:</span> <span class="st0">"results"</span><span class="sy0">,</span></div></li><li class="li2"><div class="de2"> <span class="co1">// Or simply: ["n", "fname", "lname"]</span></div></li><li class="li1"><div class="de1"> resultFields<span class="sy0">:</span> <span class="br0">[</span><span class="br0">{</span>key<span class="sy0">:</span><span class="st0">"n"</span><span class="br0">}</span><span class="sy0">,</span> <span class="br0">{</span>key<span class="sy0">:</span><span class="st0">"fname"</span><span class="br0">}</span><span class="sy0">,</span> <span class="br0">{</span>key<span class="sy0">:</span><span class="st0">"lname"</span><span class="br0">}</span><span class="br0">]</span></div></li><li class="li1"><div class="de1"> <span class="br0">}</span><span class="sy0">,</span></div></li><li class="li1"><div class="de1"> data_out <span class="sy0">=</span> Y.<span class="me1">DataSchema</span>.<span class="me1">JSON</span>.<span class="me1">apply</span><span class="br0">(</span>schema<span class="sy0">,</span> data_in<span class="br0">)</span><span class="br0">)</span><span class="sy0">;</span></div></li><li class="li1"><div class="de1"> </div></li><li class="li2"><div class="de2"> <span class="kw3">alert</span><span class="br0">(</span>data_out<span class="br0">)</span><span class="sy0">;</span></div></li><li class="li1"><div class="de1"><span class="br0">}</span><span class="br0">)</span><span class="sy0">;</span></div></li></ol></pre></div><div class="nonumbers"><pre class="javascript" style="font-family:monospace;">YUI<span class="br0">(</span><span class="br0">)</span>.<span class="kw2">use</span><span class="br0">(</span><span class="st0">"dataschema-json"</span><span class="sy0">,</span> <span class="kw2">function</span><span class="br0">(</span>Y<span class="br0">)</span> <span class="br0">{</span>
<span class="kw2">var</span> data_in <span class="sy0">=</span> <span class="br0">{</span>
total<span class="sy0">:</span><span class="nu0">10</span><span class="sy0">,</span>
results<span class="sy0">:</span><span class="br0">[</span>
<span class="br0">{</span>n<span class="sy0">:</span><span class="nu0">1</span><span class="sy0">,</span> fname<span class="sy0">:</span><span class="st0">"George"</span><span class="sy0">,</span> lname<span class="sy0">:</span><span class="st0">"Washington"</span><span class="br0">}</span><span class="sy0">,</span>
<span class="br0">{</span>n<span class="sy0">:</span><span class="nu0">2</span><span class="sy0">,</span> fname<span class="sy0">:</span><span class="st0">"John"</span><span class="sy0">,</span> lname<span class="sy0">:</span><span class="st0">"Adams"</span><span class="br0">}</span><span class="sy0">,</span>
<span class="br0">{</span>n<span class="sy0">:</span><span class="nu0">3</span><span class="sy0">,</span> fname<span class="sy0">:</span><span class="st0">"Thomas"</span><span class="sy0">,</span> lname<span class="sy0">:</span><span class="st0">"Jefferson"</span><span class="br0">}</span><span class="sy0">,</span>
<span class="br0">{</span>n<span class="sy0">:</span><span class="nu0">4</span><span class="sy0">,</span> fname<span class="sy0">:</span><span class="st0">"James"</span><span class="sy0">,</span> lname<span class="sy0">:</span><span class="st0">"Madison"</span><span class="br0">}</span><span class="sy0">,</span>
<span class="br0">{</span>n<span class="sy0">:</span><span class="nu0">5</span><span class="sy0">,</span> fname<span class="sy0">:</span><span class="st0">"James"</span><span class="sy0">,</span> lname<span class="sy0">:</span><span class="st0">"Monroe"</span><span class="br0">}</span><span class="sy0">,</span>
<span class="br0">{</span>n<span class="sy0">:</span><span class="nu0">6</span><span class="sy0">,</span> fname<span class="sy0">:</span><span class="st0">"John"</span><span class="sy0">,</span> mname<span class="sy0">:</span><span class="st0">"Quincy"</span><span class="sy0">,</span> lname<span class="sy0">:</span><span class="st0">"Adams"</span><span class="br0">}</span><span class="sy0">,</span>
<span class="br0">{</span>n<span class="sy0">:</span><span class="nu0">7</span><span class="sy0">,</span> fname<span class="sy0">:</span><span class="st0">"Andrew"</span><span class="sy0">,</span> lname<span class="sy0">:</span><span class="st0">"Jackson"</span><span class="br0">}</span><span class="sy0">,</span>
<span class="br0">{</span>n<span class="sy0">:</span><span class="nu0">8</span><span class="sy0">,</span> fname<span class="sy0">:</span><span class="st0">"Martin"</span><span class="sy0">,</span> lname<span class="sy0">:</span><span class="st0">"Van Buren"</span><span class="br0">}</span><span class="sy0">,</span>
<span class="br0">{</span>n<span class="sy0">:</span><span class="nu0">9</span><span class="sy0">,</span> fname<span class="sy0">:</span><span class="st0">"William"</span><span class="sy0">,</span> mName<span class="sy0">:</span><span class="st0">"Henry"</span><span class="sy0">,</span> lname<span class="sy0">:</span><span class="st0">"Harrison"</span><span class="br0">}</span><span class="sy0">,</span>
<span class="br0">{</span>n<span class="sy0">:</span><span class="nu0">10</span><span class="sy0">,</span> fname<span class="sy0">:</span><span class="st0">"John"</span><span class="sy0">,</span> lname<span class="sy0">:</span><span class="st0">"Tyler"</span><span class="br0">}</span>
<span class="br0">]</span>
<span class="br0">}</span><span class="sy0">,</span>
schema <span class="sy0">=</span> <span class="br0">{</span>
metaFields<span class="sy0">:</span> <span class="br0">{</span>total<span class="sy0">:</span><span class="st0">"total"</span><span class="br0">}</span><span class="sy0">,</span>
resultListLocator<span class="sy0">:</span> <span class="st0">"results"</span><span class="sy0">,</span>
<span class="co1">// Or simply: ["n", "fname", "lname"]</span>
resultFields<span class="sy0">:</span> <span class="br0">[</span><span class="br0">{</span>key<span class="sy0">:</span><span class="st0">"n"</span><span class="br0">}</span><span class="sy0">,</span> <span class="br0">{</span>key<span class="sy0">:</span><span class="st0">"fname"</span><span class="br0">}</span><span class="sy0">,</span> <span class="br0">{</span>key<span class="sy0">:</span><span class="st0">"lname"</span><span class="br0">}</span><span class="br0">]</span>
<span class="br0">}</span><span class="sy0">,</span>
data_out <span class="sy0">=</span> Y.<span class="me1">DataSchema</span>.<span class="me1">JSON</span>.<span class="me1">apply</span><span class="br0">(</span>schema<span class="sy0">,</span> data_in<span class="br0">)</span><span class="br0">)</span><span class="sy0">;</span>
<span class="kw3">alert</span><span class="br0">(</span>data_out<span class="br0">)</span><span class="sy0">;</span>
<span class="br0">}</span><span class="br0">)</span><span class="sy0">;</span></pre></div><textarea id="syntax1-plain">YUI().use("dataschema-json", function(Y) {
var data_in = {
total:10,
results:[
{n:1, fname:"George", lname:"Washington"},
{n:2, fname:"John", lname:"Adams"},
{n:3, fname:"Thomas", lname:"Jefferson"},
{n:4, fname:"James", lname:"Madison"},
{n:5, fname:"James", lname:"Monroe"},
{n:6, fname:"John", mname:"Quincy", lname:"Adams"},
{n:7, fname:"Andrew", lname:"Jackson"},
{n:8, fname:"Martin", lname:"Van Buren"},
{n:9, fname:"William", mName:"Henry", lname:"Harrison"},
{n:10, fname:"John", lname:"Tyler"}
]
},
schema = {
metaFields: {total:"total"},
resultListLocator: "results",
// Or simply: ["n", "fname", "lname"]
resultFields: [{key:"n"}, {key:"fname"}, {key:"lname"}]
},
data_out = Y.DataSchema.JSON.apply(schema, data_in));
alert(data_out);
});</textarea></div>
<p>The data itself can get fairly complex, with deeply nested arrays and objects. In your schema, you can use dot notation and the array-index syntax to define these locations. When necessary, you can also use object-bracket notation to define locations that might otherwise be invalid with dot notation.</p>
<div id="syntax2" class="yui-syntax-highlight"><div class="numbers"><pre class="javascript" style="font-family:monospace;"><ol><li class="li1"><div class="de1">YUI<span class="br0">(</span><span class="br0">)</span>.<span class="kw2">use</span><span class="br0">(</span><span class="st0">"dataschema-json"</span><span class="sy0">,</span> <span class="kw2">function</span><span class="br0">(</span>Y<span class="br0">)</span> <span class="br0">{</span></div></li><li class="li1"><div class="de1"> <span class="kw2">var</span> data_in <span class="sy0">=</span> <span class="br0">{</span></div></li><li class="li1"><div class="de1"> <span class="st0">"profile"</span><span class="sy0">:</span><span class="br0">{</span></div></li><li class="li1"><div class="de1"> <span class="st0">"current"</span><span class="sy0">:</span><span class="nu0">160</span><span class="sy0">,</span></div></li><li class="li2"><div class="de2"> <span class="st0">"target"</span><span class="sy0">:</span><span class="nu0">150</span></div></li><li class="li1"><div class="de1"> <span class="br0">}</span><span class="sy0">,</span></div></li><li class="li1"><div class="de1"> <span class="st0">"reference"</span><span class="sy0">:</span> <span class="br0">[</span></div></li><li class="li1"><div class="de1"> <span class="br0">{</span></div></li><li class="li1"><div class="de1"> <span class="st0">"category"</span><span class="sy0">:</span><span class="st0">"exercise"</span><span class="sy0">,</span></div></li><li class="li2"><div class="de2"> <span class="st0">"type"</span><span class="sy0">:</span><span class="st0">"expenditure"</span><span class="sy0">,</span></div></li><li class="li1"><div class="de1"> <span class="st0">"activities"</span><span class="sy0">:</span><span class="br0">[</span></div></li><li class="li1"><div class="de1"> <span class="br0">{</span><span class="st0">"name"</span><span class="sy0">:</span><span class="st0">"biking"</span><span class="sy0">,</span> <span class="st0">"calories"</span><span class="sy0">:</span><span class="nu0">550</span><span class="br0">}</span><span class="sy0">,</span></div></li><li class="li1"><div class="de1"> <span class="br0">{</span><span class="st0">"name"</span><span class="sy0">:</span><span class="st0">"golf"</span><span class="sy0">,</span> <span class="st0">"calories"</span><span class="sy0">:</span><span class="nu0">1000</span><span class="br0">}</span><span class="sy0">,</span></div></li><li class="li1"><div class="de1"> <span class="br0">{</span><span class="st0">"name"</span><span class="sy0">:</span><span class="st0">"running"</span><span class="sy0">,</span> <span class="st0">"calories"</span><span class="sy0">:</span><span class="nu0">650</span><span class="br0">}</span><span class="sy0">,</span></div></li><li class="li2"><div class="de2"> <span class="br0">{</span><span class="st0">"name"</span><span class="sy0">:</span><span class="st0">"swimming"</span><span class="sy0">,</span> <span class="st0">"calories"</span><span class="sy0">:</span><span class="nu0">650</span><span class="br0">}</span><span class="sy0">,</span></div></li><li class="li1"><div class="de1"> <span class="br0">{</span><span class="st0">"name"</span><span class="sy0">:</span><span class="st0">"walking"</span><span class="sy0">,</span> <span class="st0">"calories"</span><span class="sy0">:</span><span class="nu0">225</span><span class="br0">}</span></div></li><li class="li1"><div class="de1"> <span class="br0">]</span></div></li><li class="li1"><div class="de1"> <span class="br0">}</span><span class="sy0">,</span></div></li><li class="li1"><div class="de1"> <span class="br0">{</span></div></li><li class="li2"><div class="de2"> <span class="st0">"category"</span><span class="sy0">:</span><span class="st0">"nutrition"</span><span class="sy0">,</span></div></li><li class="li1"><div class="de1"> <span class="st0">"type"</span><span class="sy0">:</span><span class="st0">"intake"</span><span class="sy0">,</span></div></li><li class="li1"><div class="de1"> <span class="st0">"fruit"</span><span class="sy0">:</span><span class="br0">[</span></div></li><li class="li1"><div class="de1"> <span class="br0">{</span><span class="st0">"name"</span><span class="sy0">:</span><span class="st0">"apple"</span><span class="sy0">,</span> <span class="st0">"calories"</span><span class="sy0">:</span><span class="nu0">70</span><span class="br0">}</span><span class="sy0">,</span></div></li><li class="li1"><div class="de1"> <span class="br0">{</span><span class="st0">"name"</span><span class="sy0">:</span><span class="st0">"banana"</span><span class="sy0">,</span> <span class="st0">"calories"</span><span class="sy0">:</span><span class="nu0">70</span><span class="br0">}</span><span class="sy0">,</span></div></li><li class="li2"><div class="de2"> <span class="br0">{</span><span class="st0">"name"</span><span class="sy0">:</span><span class="st0">"orange"</span><span class="sy0">,</span> <span class="st0">"calories"</span><span class="sy0">:</span><span class="nu0">90</span><span class="br0">}</span><span class="sy0">,</span></div></li><li class="li1"><div class="de1"> <span class="br0">]</span><span class="sy0">,</span></div></li><li class="li1"><div class="de1"> <span class="st0">"vegetables"</span><span class="sy0">:</span><span class="br0">[</span></div></li><li class="li1"><div class="de1"> <span class="br0">{</span><span class="st0">"name"</span><span class="sy0">:</span><span class="st0">"baked potato"</span><span class="sy0">,</span> <span class="st0">"calories"</span><span class="sy0">:</span><span class="nu0">150</span><span class="br0">}</span><span class="sy0">,</span></div></li><li class="li1"><div class="de1"> <span class="br0">{</span><span class="st0">"name"</span><span class="sy0">:</span><span class="st0">"broccoli"</span><span class="sy0">,</span> <span class="st0">"calories"</span><span class="sy0">:</span><span class="nu0">50</span><span class="br0">}</span><span class="sy0">,</span></div></li><li class="li2"><div class="de2"> <span class="br0">{</span><span class="st0">"name"</span><span class="sy0">:</span><span class="st0">"green beans"</span><span class="sy0">,</span> <span class="st0">"calories"</span><span class="sy0">:</span><span class="nu0">30</span><span class="br0">}</span></div></li><li class="li1"><div class="de1"> <span class="br0">]</span></div></li><li class="li1"><div class="de1"> <span class="br0">}</span></div></li><li class="li1"><div class="de1"> <span class="br0">]</span><span class="sy0">,</span></div></li><li class="li1"><div class="de1"> <span class="st0">"program"</span><span class="sy0">:</span> <span class="br0">[</span></div></li><li class="li2"><div class="de2"> <span class="br0">{</span></div></li><li class="li1"><div class="de1"> <span class="st0">"category"</span><span class="sy0">:</span><span class="st0">"exercise"</span><span class="sy0">,</span></div></li><li class="li1"><div class="de1"> <span class="st0">"weekly schedule"</span><span class="sy0">:</span><span class="br0">[</span></div></li><li class="li1"><div class="de1"> <span class="br0">{</span><span class="st0">"day"</span><span class="sy0">:</span><span class="st0">"sunday"</span><span class="sy0">,</span> <span class="st0">"activity"</span><span class="sy0">:</span><span class="st0">"swimming"</span><span class="br0">}</span><span class="sy0">,</span></div></li><li class="li1"><div class="de1"> <span class="br0">{</span><span class="st0">"day"</span><span class="sy0">:</span><span class="st0">"monday"</span><span class="sy0">,</span> <span class="st0">"activity"</span><span class="sy0">:</span><span class="st0">"running"</span><span class="br0">}</span><span class="sy0">,</span></div></li><li class="li2"><div class="de2"> <span class="br0">{</span><span class="st0">"day"</span><span class="sy0">:</span><span class="st0">"tuesday"</span><span class="sy0">,</span> <span class="st0">"activity"</span><span class="sy0">:</span><span class="st0">"biking"</span><span class="br0">}</span><span class="sy0">,</span></div></li><li class="li1"><div class="de1"> <span class="br0">{</span><span class="st0">"day"</span><span class="sy0">:</span><span class="st0">"wednesday"</span><span class="sy0">,</span> <span class="st0">"activity"</span><span class="sy0">:</span><span class="st0">"running"</span><span class="br0">}</span><span class="sy0">,</span></div></li><li class="li1"><div class="de1"> <span class="br0">{</span><span class="st0">"day"</span><span class="sy0">:</span><span class="st0">"thursday"</span><span class="sy0">,</span> <span class="st0">"activity"</span><span class="sy0">:</span><span class="st0">"swimming"</span><span class="br0">}</span><span class="sy0">,</span></div></li><li class="li1"><div class="de1"> <span class="br0">{</span><span class="st0">"day"</span><span class="sy0">:</span><span class="st0">"friday"</span><span class="sy0">,</span> <span class="st0">"activity"</span><span class="sy0">:</span><span class="st0">"running"</span><span class="br0">}</span><span class="sy0">,</span></div></li><li class="li1"><div class="de1"> <span class="br0">{</span><span class="st0">"day"</span><span class="sy0">:</span><span class="st0">"saturday"</span><span class="sy0">,</span> <span class="st0">"activity"</span><span class="sy0">:</span><span class="st0">"golf"</span><span class="br0">}</span></div></li><li class="li2"><div class="de2"> <span class="br0">]</span></div></li><li class="li1"><div class="de1"> <span class="br0">}</span><span class="sy0">,</span></div></li><li class="li1"><div class="de1"> <span class="br0">{</span></div></li><li class="li1"><div class="de1"> <span class="st0">"category"</span><span class="sy0">:</span><span class="st0">"diet"</span><span class="sy0">,</span></div></li><li class="li1"><div class="de1"> <span class="st0">"schedule"</span><span class="sy0">:</span><span class="br0">[</span></div></li><li class="li2"><div class="de2"> <span class="br0">]</span></div></li><li class="li1"><div class="de1"> <span class="br0">}</span></div></li><li class="li1"><div class="de1"> <span class="br0">]</span></div></li><li class="li1"><div class="de1"> <span class="br0">}</span><span class="sy0">,</span></div></li><li class="li1"><div class="de1"> schema <span class="sy0">=</span> <span class="br0">{</span></div></li><li class="li2"><div class="de2"> metaFields<span class="sy0">:</span> <span class="br0">{</span>current<span class="sy0">:</span><span class="st0">"profile.current"</span><span class="sy0">,</span> target<span class="sy0">:</span><span class="st0">"profile.target"</span><span class="sy0">,</span></div></li><li class="li1"><div class="de1"> reference<span class="sy0">:</span><span class="st0">"reference[0].activities"</span><span class="br0">}</span><span class="sy0">,</span></div></li><li class="li1"><div class="de1"> resultListLocator<span class="sy0">:</span> <span class="st0">"program[0]['weekly schedule']"</span><span class="sy0">,</span></div></li><li class="li1"><div class="de1"> <span class="co1">// Or simply: ["day", "activity"]</span></div></li><li class="li1"><div class="de1"> resultFields<span class="sy0">:</span> <span class="br0">[</span><span class="br0">{</span>key<span class="sy0">:</span><span class="st0">"day"</span><span class="br0">}</span><span class="sy0">,</span> <span class="br0">{</span>key<span class="sy0">:</span><span class="st0">"activity"</span><span class="br0">}</span><span class="br0">]</span></div></li><li class="li2"><div class="de2"> <span class="br0">}</span><span class="sy0">,</span></div></li><li class="li1"><div class="de1"> data_out <span class="sy0">=</span> Y.<span class="me1">DataSchema</span>.<span class="me1">Array</span>.<span class="me1">apply</span><span class="br0">(</span>schema<span class="sy0">,</span> data_in<span class="br0">)</span><span class="br0">)</span><span class="sy0">;</span></div></li><li class="li1"><div class="de1"> </div></li><li class="li1"><div class="de1"> <span class="kw3">alert</span><span class="br0">(</span>data_out<span class="br0">)</span><span class="sy0">;</span></div></li><li class="li1"><div class="de1"><span class="br0">}</span><span class="br0">)</span><span class="sy0">;</span></div></li></ol></pre></div><div class="nonumbers"><pre class="javascript" style="font-family:monospace;">YUI<span class="br0">(</span><span class="br0">)</span>.<span class="kw2">use</span><span class="br0">(</span><span class="st0">"dataschema-json"</span><span class="sy0">,</span> <span class="kw2">function</span><span class="br0">(</span>Y<span class="br0">)</span> <span class="br0">{</span>
<span class="kw2">var</span> data_in <span class="sy0">=</span> <span class="br0">{</span>
<span class="st0">"profile"</span><span class="sy0">:</span><span class="br0">{</span>
<span class="st0">"current"</span><span class="sy0">:</span><span class="nu0">160</span><span class="sy0">,</span>
<span class="st0">"target"</span><span class="sy0">:</span><span class="nu0">150</span>
<span class="br0">}</span><span class="sy0">,</span>
<span class="st0">"reference"</span><span class="sy0">:</span> <span class="br0">[</span>
<span class="br0">{</span>
<span class="st0">"category"</span><span class="sy0">:</span><span class="st0">"exercise"</span><span class="sy0">,</span>
<span class="st0">"type"</span><span class="sy0">:</span><span class="st0">"expenditure"</span><span class="sy0">,</span>
<span class="st0">"activities"</span><span class="sy0">:</span><span class="br0">[</span>
<span class="br0">{</span><span class="st0">"name"</span><span class="sy0">:</span><span class="st0">"biking"</span><span class="sy0">,</span> <span class="st0">"calories"</span><span class="sy0">:</span><span class="nu0">550</span><span class="br0">}</span><span class="sy0">,</span>
<span class="br0">{</span><span class="st0">"name"</span><span class="sy0">:</span><span class="st0">"golf"</span><span class="sy0">,</span> <span class="st0">"calories"</span><span class="sy0">:</span><span class="nu0">1000</span><span class="br0">}</span><span class="sy0">,</span>
<span class="br0">{</span><span class="st0">"name"</span><span class="sy0">:</span><span class="st0">"running"</span><span class="sy0">,</span> <span class="st0">"calories"</span><span class="sy0">:</span><span class="nu0">650</span><span class="br0">}</span><span class="sy0">,</span>
<span class="br0">{</span><span class="st0">"name"</span><span class="sy0">:</span><span class="st0">"swimming"</span><span class="sy0">,</span> <span class="st0">"calories"</span><span class="sy0">:</span><span class="nu0">650</span><span class="br0">}</span><span class="sy0">,</span>
<span class="br0">{</span><span class="st0">"name"</span><span class="sy0">:</span><span class="st0">"walking"</span><span class="sy0">,</span> <span class="st0">"calories"</span><span class="sy0">:</span><span class="nu0">225</span><span class="br0">}</span>
<span class="br0">]</span>
<span class="br0">}</span><span class="sy0">,</span>
<span class="br0">{</span>
<span class="st0">"category"</span><span class="sy0">:</span><span class="st0">"nutrition"</span><span class="sy0">,</span>
<span class="st0">"type"</span><span class="sy0">:</span><span class="st0">"intake"</span><span class="sy0">,</span>
<span class="st0">"fruit"</span><span class="sy0">:</span><span class="br0">[</span>
<span class="br0">{</span><span class="st0">"name"</span><span class="sy0">:</span><span class="st0">"apple"</span><span class="sy0">,</span> <span class="st0">"calories"</span><span class="sy0">:</span><span class="nu0">70</span><span class="br0">}</span><span class="sy0">,</span>
<span class="br0">{</span><span class="st0">"name"</span><span class="sy0">:</span><span class="st0">"banana"</span><span class="sy0">,</span> <span class="st0">"calories"</span><span class="sy0">:</span><span class="nu0">70</span><span class="br0">}</span><span class="sy0">,</span>
<span class="br0">{</span><span class="st0">"name"</span><span class="sy0">:</span><span class="st0">"orange"</span><span class="sy0">,</span> <span class="st0">"calories"</span><span class="sy0">:</span><span class="nu0">90</span><span class="br0">}</span><span class="sy0">,</span>
<span class="br0">]</span><span class="sy0">,</span>
<span class="st0">"vegetables"</span><span class="sy0">:</span><span class="br0">[</span>
<span class="br0">{</span><span class="st0">"name"</span><span class="sy0">:</span><span class="st0">"baked potato"</span><span class="sy0">,</span> <span class="st0">"calories"</span><span class="sy0">:</span><span class="nu0">150</span><span class="br0">}</span><span class="sy0">,</span>
<span class="br0">{</span><span class="st0">"name"</span><span class="sy0">:</span><span class="st0">"broccoli"</span><span class="sy0">,</span> <span class="st0">"calories"</span><span class="sy0">:</span><span class="nu0">50</span><span class="br0">}</span><span class="sy0">,</span>
<span class="br0">{</span><span class="st0">"name"</span><span class="sy0">:</span><span class="st0">"green beans"</span><span class="sy0">,</span> <span class="st0">"calories"</span><span class="sy0">:</span><span class="nu0">30</span><span class="br0">}</span>
<span class="br0">]</span>
<span class="br0">}</span>
<span class="br0">]</span><span class="sy0">,</span>
<span class="st0">"program"</span><span class="sy0">:</span> <span class="br0">[</span>
<span class="br0">{</span>
<span class="st0">"category"</span><span class="sy0">:</span><span class="st0">"exercise"</span><span class="sy0">,</span>
<span class="st0">"weekly schedule"</span><span class="sy0">:</span><span class="br0">[</span>
<span class="br0">{</span><span class="st0">"day"</span><span class="sy0">:</span><span class="st0">"sunday"</span><span class="sy0">,</span> <span class="st0">"activity"</span><span class="sy0">:</span><span class="st0">"swimming"</span><span class="br0">}</span><span class="sy0">,</span>
<span class="br0">{</span><span class="st0">"day"</span><span class="sy0">:</span><span class="st0">"monday"</span><span class="sy0">,</span> <span class="st0">"activity"</span><span class="sy0">:</span><span class="st0">"running"</span><span class="br0">}</span><span class="sy0">,</span>
<span class="br0">{</span><span class="st0">"day"</span><span class="sy0">:</span><span class="st0">"tuesday"</span><span class="sy0">,</span> <span class="st0">"activity"</span><span class="sy0">:</span><span class="st0">"biking"</span><span class="br0">}</span><span class="sy0">,</span>
<span class="br0">{</span><span class="st0">"day"</span><span class="sy0">:</span><span class="st0">"wednesday"</span><span class="sy0">,</span> <span class="st0">"activity"</span><span class="sy0">:</span><span class="st0">"running"</span><span class="br0">}</span><span class="sy0">,</span>
<span class="br0">{</span><span class="st0">"day"</span><span class="sy0">:</span><span class="st0">"thursday"</span><span class="sy0">,</span> <span class="st0">"activity"</span><span class="sy0">:</span><span class="st0">"swimming"</span><span class="br0">}</span><span class="sy0">,</span>
<span class="br0">{</span><span class="st0">"day"</span><span class="sy0">:</span><span class="st0">"friday"</span><span class="sy0">,</span> <span class="st0">"activity"</span><span class="sy0">:</span><span class="st0">"running"</span><span class="br0">}</span><span class="sy0">,</span>
<span class="br0">{</span><span class="st0">"day"</span><span class="sy0">:</span><span class="st0">"saturday"</span><span class="sy0">,</span> <span class="st0">"activity"</span><span class="sy0">:</span><span class="st0">"golf"</span><span class="br0">}</span>
<span class="br0">]</span>
<span class="br0">}</span><span class="sy0">,</span>
<span class="br0">{</span>
<span class="st0">"category"</span><span class="sy0">:</span><span class="st0">"diet"</span><span class="sy0">,</span>
<span class="st0">"schedule"</span><span class="sy0">:</span><span class="br0">[</span>
<span class="br0">]</span>
<span class="br0">}</span>
<span class="br0">]</span>
<span class="br0">}</span><span class="sy0">,</span>
schema <span class="sy0">=</span> <span class="br0">{</span>
metaFields<span class="sy0">:</span> <span class="br0">{</span>current<span class="sy0">:</span><span class="st0">"profile.current"</span><span class="sy0">,</span> target<span class="sy0">:</span><span class="st0">"profile.target"</span><span class="sy0">,</span>
reference<span class="sy0">:</span><span class="st0">"reference[0].activities"</span><span class="br0">}</span><span class="sy0">,</span>
resultListLocator<span class="sy0">:</span> <span class="st0">"program[0]['weekly schedule']"</span><span class="sy0">,</span>
<span class="co1">// Or simply: ["day", "activity"]</span>
resultFields<span class="sy0">:</span> <span class="br0">[</span><span class="br0">{</span>key<span class="sy0">:</span><span class="st0">"day"</span><span class="br0">}</span><span class="sy0">,</span> <span class="br0">{</span>key<span class="sy0">:</span><span class="st0">"activity"</span><span class="br0">}</span><span class="br0">]</span>
<span class="br0">}</span><span class="sy0">,</span>
data_out <span class="sy0">=</span> Y.<span class="me1">DataSchema</span>.<span class="me1">Array</span>.<span class="me1">apply</span><span class="br0">(</span>schema<span class="sy0">,</span> data_in<span class="br0">)</span><span class="br0">)</span><span class="sy0">;</span>
<span class="kw3">alert</span><span class="br0">(</span>data_out<span class="br0">)</span><span class="sy0">;</span>
<span class="br0">}</span><span class="br0">)</span><span class="sy0">;</span></pre></div><textarea id="syntax2-plain">YUI().use("dataschema-json", function(Y) {
var data_in = {
"profile":{
"current":160,
"target":150
},
"reference": [
{
"category":"exercise",
"type":"expenditure",
"activities":[
{"name":"biking", "calories":550},
{"name":"golf", "calories":1000},
{"name":"running", "calories":650},
{"name":"swimming", "calories":650},
{"name":"walking", "calories":225}
]
},
{
"category":"nutrition",
"type":"intake",
"fruit":[
{"name":"apple", "calories":70},
{"name":"banana", "calories":70},
{"name":"orange", "calories":90},
],
"vegetables":[
{"name":"baked potato", "calories":150},
{"name":"broccoli", "calories":50},
{"name":"green beans", "calories":30}
]
}
],
"program": [
{
"category":"exercise",
"weekly schedule":[
{"day":"sunday", "activity":"swimming"},
{"day":"monday", "activity":"running"},
{"day":"tuesday", "activity":"biking"},
{"day":"wednesday", "activity":"running"},
{"day":"thursday", "activity":"swimming"},
{"day":"friday", "activity":"running"},
{"day":"saturday", "activity":"golf"}
]
},
{
"category":"diet",
"schedule":[
]
}
]
},
schema = {
metaFields: {current:"profile.current", target:"profile.target",
reference:"reference[0].activities"},
resultListLocator: "program[0]['weekly schedule']",
// Or simply: ["day", "activity"]
resultFields: [{key:"day"}, {key:"activity"}]
},
data_out = Y.DataSchema.Array.apply(schema, data_in));
alert(data_out);
});</textarea></div> </div>
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<h4>
DataSchema Utility Examples:</h4>
</div>
<div class="bd">
<ul>
<li><a href='../dataschema/dataschema_array.html'>DataSchema.Array</a></li><li class='selected'><a href='../dataschema/dataschema_json.html'>DataSchema.JSON</a></li><li><a href='../dataschema/dataschema_table.html'>DataSchema.XML for HTML Tables</a></li><li><a href='../dataschema/dataschema_xml.html'>DataSchema.XML for XML Data</a></li><li><a href='../dataschema/dataschema_text.html'>DataSchema.Text</a></li><li><a href='../dataschema/dataschema_parsing.html'>Enforcing DataTypes</a></li><li><a href='../datasource/datasource_caching.html'>DataSource with Caching (included with examples for DataSource Utility)</a></li><li><a href='../datasource/datasource_function.html'>DataSource.Function (included with examples for DataSource Utility)</a></li><li><a href='../datasource/datasource_get.html'>DataSource.Get (included with examples for DataSource Utility)</a></li><li><a href='../datasource/datasource_io.html'>DataSource.IO (included with examples for DataSource Utility)</a></li><li><a href='../datasource/datasource_local.html'>DataSource.Local (included with examples for DataSource Utility)</a></li> </ul>
</div>
</div>
<div class="mod box4">
<div class="hd">
<h4>More DataSchema Utility Resources:</h4>
</div>
<div class="bd">
<ul>
<!-- <li><a href="http://developer.yahoo.com/yui/dataschema/">User's Guide</a> (external)</li> -->
<li><a href="../../api/module_dataschema.html">API Documentation</a></li></ul>
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