Created
June 15, 2011 16:02
-
-
Save stlsmiths/1027414 to your computer and use it in GitHub Desktop.
YUI2 local JSON complex parse with DataTable
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd"> | |
| <html> | |
| <head> | |
| <meta http-equiv="Content-Type" content="text/html; charset=utf-8"> | |
| <title>YUI DataTable Example</title> | |
| <script src="http://yui.yahooapis.com/2.9.0/build/yuiloader/yuiloader-min.js"></script> | |
| <script type="text/javascript"> | |
| var loader = new YAHOO.util.YUILoader({ | |
| require: [ 'reset', 'fonts', 'base', "datatable", "datasource", "json", "yahoo", "dom", "event" ], | |
| loadOptional: true, | |
| // The function to call when all script/css resources have been loaded | |
| onSuccess: function() { | |
| // | |
| // Aliases for YUI placeholders | |
| // | |
| var YDom = YAHOO.util.Dom, | |
| YUtil = YAHOO.util, | |
| YEvent = YAHOO.util.Event, | |
| YLang = YAHOO.lang; | |
| YAHOO.util.Event.onDOMReady( function() { | |
| // | |
| // Define the JSON "string" | |
| // | |
| var JSONString = '{"myResults":[{ "color_no" : "1", "color_code" : "#0000ff", "cname" : "Blue" }, { "child_to_use" : "2", "sub_child":[ { "blank":""}, { "blank":""}, {"color_no" : "2", "color_code" : "#ff6347", "cname" : "Tomato" }] }, { "color_no" : "13", "color_code" : "#98fb98", "cname" : "PaleGreen" }, { "color_no" : "4", "color_code" : "#ffd700", "cname" : "Gold" } ]}'; | |
| /* | |
| * The JSON object actually is this ... | |
| { | |
| "myResults":[ | |
| { | |
| "color_no":"1", | |
| "color_code":"#0000ff", | |
| "cname":"Blue" | |
| }, | |
| { | |
| "child_to_use" : "2", | |
| "sub_child":[ // we only want to use sub_child[2] in our data ... | |
| { | |
| "blank":"" | |
| }, | |
| { | |
| "blank":"" | |
| }, | |
| { | |
| "color_no":"2", | |
| "color_code":"#ff6347", | |
| "cname":"Tomato" | |
| } | |
| ] | |
| }, | |
| { | |
| "color_no":"13", | |
| "color_code":"#98fb98", | |
| "cname":"PaleGreen" | |
| }, | |
| { | |
| "color_no":"4", | |
| "color_code":"#ffd700", | |
| "cname":"Gold" | |
| } | |
| ] | |
| } | |
| */ | |
| // | |
| // YOU DON'T HAVE TO PARSE the JSON, DS is smart enought to know the difference !!! | |
| // | |
| // Now parse the JSON string to make a local JSON object ... | |
| // | |
| // | |
| // var JSONObj = YAHOO.lang.JSON.parse(JSONString); | |
| var myDS = new YAHOO.util.LocalDataSource( JSONString ); | |
| myDS.responseType = YAHOO.util.DataSource.TYPE_JSON; | |
| myDS.responseSchema = { | |
| resultsList:'myResults', // This is CRUCIAL if you use TYPE_JSON ... | |
| fields : [ {key:"color_no", parser:"number"}, "color_code", "cname" ] | |
| }; | |
| myDS.doBeforeParseData = function( oReq, oFullResp, oCB ) { | |
| // | |
| // on entry, oFullResp contains a JS array (after JSON parsing the "raw" JSON string ...) | |
| // | |
| var newFullResp = { myResults:[] }; // create an empty JS return object array | |
| // | |
| // Loop thru the results array, convert our "sub_child" member if encountered | |
| // | |
| for(var i=0; i<oFullResp.myResults.length; i++) { | |
| var arow = oFullResp.myResults[i]; | |
| if ( YLang.hasOwnProperty( arow, 'sub_child') && arow.child_to_use ) | |
| newFullResp.myResults.push( arow.sub_child[ arow.child_to_use] ); // only come here if sub_child exists | |
| else | |
| newFullResp.myResults.push( arow ); // otherwise just append the row | |
| } | |
| // | |
| // Return the "modified" response object | |
| // | |
| return newFullResp; | |
| } | |
| var myCols = [ | |
| { key: "color_no", label: "Id", sortable:true }, | |
| { key: "color_code", label: "Hex Code", sortable:true }, | |
| { key: "cname", label: "CSS Color Name", sortable:true } | |
| ]; | |
| var myDT = new YAHOO.widget.DataTable( "divTable", myCols, myDS ); | |
| }); | |
| }, | |
| timeout: 5000, | |
| combine: true | |
| }); | |
| loader.insert(); | |
| </script> | |
| </head> | |
| <body class='yui-skin-sam'> | |
| <h1>YUI DataTable Example - Local JSON with complex data</h1> | |
| <div id="divTable"></div> | |
| </body> | |
| </html> |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment