How To Get Data On Change Report In Pivot Table, Within React Component ?

Answered

I have already integrated WebDataRocks in React. Now to to get data after any on changes in pivot table. 
Please check the attachment, when I want to change table visualisation structure then i want to get total json data.  
Example: When I used the bellow code

this.webdatarocks.getData({}, function(data) {
webdatarocksData= JSON.stringify(data);
console.log('websData=> ',webdatarocksData);
});

Here is the output in console log:
websData=> {"meta":{"vAmount":1,"formats":[{"name":"","thousandsSeparator":" ","decimalSeparator":".","decimalPlaces":-1,"maxDecimalPlaces":-1,"maxSymbols":20,"currencySymbol":"","currencySymbolAlign":"left","nullValue":"","infinityValue":"Infinity","divideByZeroValue":"Infinity","textAlign":"right","isPercent":false,"isCount":false}],"v0Name":"Sum of AltMonthWeek","r0Name":"AltWeekEnd.Year","rAmount":1,"cAmount":0},"data":[{"v0":1323},{"r0":"2009","v0":951},{"r0":"2010","v0":372}]}



But when I want to get data on change (code is bellow)
this.webdatarocks.on('reportchange', function() {
this.webdatarocks.getData({}, function(data) {console.log('D2 ',data)})
});

The console log error is:
Uncaught TypeError: Cannot read property 'getData' of undefined
at s2m.<anonymous> (PivotTable.jsx:122)
at s2m.U.dispatch (webdatarocks.js:6)
at c59.runQuery (webdatarocks.js:6)
at G7m.runQuery (webdatarocks.js:6)
at q4j.onDrop (webdatarocks.js:6)
at Object.onDrop (webdatarocks.js:6)
at webdatarocks.js:6
at HTMLDivElement.j4E.T3d.element.(anonymous function).events._Event.isNativeType.__handlers.(anonymous function).(anonymous function) (http://localhost:3000/app/assets/javascripts/webdatarocks.js:6:38839)


Can you tell me how can I get the Data after onchange ??
 
 

4 answers

WebDataRocks Team WebDataRocks February 4, 2019

Hello Parameswar,
It seems that your anonymous function does not have this reference in its context.
You can rewrite it with ES6 syntax:

this.webdatarocks.on('reportchange', () => {
this.webdatarocks.getData({}, function(data) {console.log('D2 ',data)})
});

That should do the trick.
Regards,
WebDataRocks Team

Parameswar Mondal February 7, 2019

Hello,
Thank you for your response. Please follow the bellow code: 
 

export class Pivot extends React.Component {
props: Props;
state: State;
webdatarocks;

propTypes: {
global: React.PropTypes.object,
width: [React.PropTypes.string, React.PropTypes.number],
height: [React.PropTypes.string, React.PropTypes.number],
report: [React.PropTypes.string, React.PropTypes.object],
toolbar: React.PropTypes.bool,
customizeCell: React.PropTypes.func,
cellclick: React.PropTypes.func,
celldoubleclick: React.PropTypes.func,
dataerror: React.PropTypes.func,
datafilecancelled: React.PropTypes.func,
dataloaded: React.PropTypes.func,
datachanged: React.PropTypes.func,
fieldslistclose: React.PropTypes.func,
fieldslistopen: React.PropTypes.func,
filteropen: React.PropTypes.func,
fullscreen: React.PropTypes.func,
loadingdata: React.PropTypes.func,
loadinglocalization: React.PropTypes.func,
loadingreportfile: React.PropTypes.func,
localizationerror: React.PropTypes.func,
localizationloaded: React.PropTypes.func,
openingreportfile: React.PropTypes.func,
querycomplete: React.PropTypes.func,
queryerror: React.PropTypes.func,
ready: React.PropTypes.func,
reportchange: React.PropTypes.func,
reportcomplete: React.PropTypes.func,
reportfilecancelled: React.PropTypes.func,
reportfileerror: React.PropTypes.func,
reportfileloaded: React.PropTypes.func,
runningquery: React.PropTypes.func,
update: React.PropTypes.func,
beforetoolbarcreated: React.PropTypes.func
}

constructor(props: Props) {
super(props);
const initialSettings = props.settings;

this.state = {
settings: initialSettings,
webdatarocks:''
}
}

render() {

return (
<div> Pivot </div>
)
}

componentDidMount() {
var config = {};
var webdatarocksData= '';
config.container = ReactDOM.findDOMNode(this);
this.parseProps(config);
this.webdatarocks = new window.WebDataRocks(config);

this.webdatarocks.getData({}, function(data) {
webdatarocksData= JSON.stringify(data);
console.log('D1 ',data);
});

this.webdatarocks.on('reportchange', function() {
console.log('Hello World..');
});
}

shouldComponentUpdate() {
return false;
}

componentWillUnmount() {
this.webdatarocks.dispose();
}

parseProps(config: Params) {
if (this.props.toolbar !== undefined) {
config.toolbar = this.props.toolbar;
}
if (this.props.width !== undefined) {
config.width = this.props.width;
}
if (this.props.height !== undefined) {
config.height = this.props.height;
}
if (this.props.report !== undefined) {
config.report = this.props.report;
}
if (this.props.global !== undefined) {
config.global = this.props.global;
}
if (this.props.customizeCell !== undefined) {
config.customizeCell = this.props.customizeCell;
}
// events
if (this.props.cellclick !== undefined) {
config.cellclick = this.props.cellclick;
}
if (this.props.celldoubleclick !== undefined) {
config.celldoubleclick = this.props.celldoubleclick;
}
if (this.props.dataerror !== undefined) {
config.dataerror = this.props.dataerror;
}
if (this.props.datafilecancelled !== undefined) {
config.datafilecancelled = this.props.datafilecancelled;
}
if (this.props.dataloaded !== undefined) {
config.dataloaded = this.props.dataloaded;
}
if (this.props.datachanged !== undefined) {
config.datachanged = this.props.datachanged;
}
if (this.props.fieldslistclose !== undefined) {
config.fieldslistclose = this.props.fieldslistclose;
}
if (this.props.fieldslistopen !== undefined) {
config.fieldslistopen = this.props.fieldslistopen;
}
if (this.props.filteropen !== undefined) {
config.filteropen = this.props.filteropen;
}
if (this.props.fullscreen !== undefined) {
config.fullscreen = this.props.fullscreen;
}
if (this.props.loadingdata !== undefined) {
config.loadingdata = this.props.loadingdata;
}
if (this.props.loadinglocalization !== undefined) {
config.loadinglocalization = this.props.loadinglocalization;
}
if (this.props.loadingreportfile !== undefined) {
config.loadingreportfile = this.props.loadingreportfile;
}
if (this.props.localizationerror !== undefined) {
config.localizationerror = this.props.localizationerror;
}
if (this.props.localizationloaded !== undefined) {
config.localizationloaded = this.props.localizationloaded;
}
if (this.props.openingreportfile !== undefined) {
config.openingreportfile = this.props.openingreportfile;
}
if (this.props.querycomplete !== undefined) {
config.querycomplete = this.props.querycomplete;
}
if (this.props.queryerror !== undefined) {
config.queryerror = this.props.queryerror;
}
if (this.props.ready !== undefined) {
config.ready = this.props.ready;
}
if (this.props.reportchange !== undefined) {
config.reportchange = this.props.reportchange;
}
if (this.props.reportcomplete !== undefined) {
config.reportcomplete = this.props.reportcomplete;
}
if (this.props.reportfilecancelled !== undefined) {
config.reportfilecancelled = this.props.reportfilecancelled;
}
if (this.props.reportfileerror !== undefined) {
config.reportfileerror = this.props.reportfileerror;
}
if (this.props.reportfileloaded !== undefined) {
config.reportfileloaded = this.props.reportfileloaded;
}
if (this.props.runningquery !== undefined) {
config.runningquery = this.props.runningquery;
}
if (this.props.update !== undefined) {
config.update = this.props.update;
}
if (this.props.beforetoolbarcreated !== undefined) {
config.beforetoolbarcreated = this.props.beforetoolbarcreated;
}
}

}

But within componentDidMount(), when I used  

this.webdatarocks.on('reportchange', function() {
console.log('Hello World..');
});

then on change the pivot table, the console log will appear. 
But when I want to get data within reportchange event, then I don’t get any data even will get an console error. The error is bellow: 

Uncaught TypeError: Cannot read property 'getData' of undefined
at s2m.<anonymous> (PivotTable.jsx:122)
at s2m.U.dispatch (webdatarocks.js:6)
at c59.runQuery (webdatarocks.js:6)
at G7m.runQuery (webdatarocks.js:6)
at q4j.onDrop (webdatarocks.js:6)
at Object.onDrop (webdatarocks.js:6)
at webdatarocks.js:6
at HTMLDivElement.j4E.T3d.element.(anonymous function).events._Event.isNativeType.__handlers.(anonymous function).(anonymous function) (http://localhost:3000/app/assets/javascripts/webdatarocks.js:6:38839)

For this kind of issue how I’ll solve it ?
 
 
 
 

WebDataRocks Team WebDataRocks 4 days ago

Hello Parameswar,
 
Thank you for the code sample.
Please note that initialization of the component takes some time, so you need to wait until reportcomplete event before making any API calls:

this.webdatarocks.on('reportcomplete', () => {
this.webdatarocks.getData({}, function(data) {
webdatarocksData = JSON.stringify(data);
console.log('D1 ',data);
});

});

Hope it helps.
 
Regards,
WebDataRocks Team

Parameswar Mondal 13 hours ago

Thank You for your valuable support. 
But I want to get data when on change of pivot table UI within reactjs component. I have added my sample code above. Please take a look. 
So tell me if is there any code sample.
Thank You

Please login or Register to Submit Answer