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POdynamically changing chart series extjs 4
 

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    <p>I'm using Extjs 4 with the MVC architecture.</p> <p>I have a python script that outputs this Json Data : </p> <pre><code>{ "data": [ { "inAnalysis": 3, "inQuest": 2, "inDevelopment": 6, "total": 12, "inValidation": 1, "Month": 1303 }, { "inAnalysis": 1, "total": 5, "Month": 1304, "inDevelopment": 4 } ], "success": true, "metaData": { "fields": [ { "name": "inAnalysis" }, { "name": "inQuest" }, { "name": "inDevelopment" }, { "name": "inValidation" }, { "name": "isDuplicate" }, { "name": "New" }, { "name": "total" } ], "root": "data" } </code></pre> <p>}</p> <p>I want the fields of my MetaData to be used as the chart series, so I have a store like this : </p> <pre><code>Ext.define('Proj.store.ChartData', { extend: 'Ext.data.Store', autoload: true, proxy: { type: 'ajax', url : 'data/getParams.py', reader: new Ext.data.JsonReader({ fields:[] }), root: 'data' } </code></pre> <p>And to add series to the chart I did this : </p> <pre><code>var chart = Ext.widget('drawchart'); var fields = []; chartStore.each(function (field) { fields.push(Ext.create('Ext.data.Field', { name: field.get('name') })); }); chartModel.prototype.fields.removeAll(); chartModel.prototype.fields.addAll(fields); var series = []; for (var i = 1; i &lt; fields.length; i++) { var newSeries = new Ext.chart.BarSeries({ type: 'column', displayName: fields[i].name, xField: ['Month'], yField: fields[i].name, style: { mode: 'stretch', color: this.chartColors[i + 1] } }); series.push(newSeries); chart.series = series; }; chart.bindStore(chartStore); chart.redraw(); chart.refresh(); </code></pre> <p>But It's not working, I think the fields array is always empty... Any help would be appreciated:</p>
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