So my javascript is bad, but I have a datatables need that I cannot figure out. Relevant code here:
$('#lesson-table').DataTable( {
'data': cleanData,
'paging': false,
'order': [[ 8, 'asc' ], [ 3, 'desc' ], [ 1, 'desc' ]],
initComplete: function () {
// this is where we populate the filter dropdowns
this.api().columns([0,1,2,6,7]).every( function () {
var column = this;
var select = $('<select><option value=""></option></select>')
.appendTo( $(column.header()) )
.on( 'change', function () {
var val = $.fn.dataTable.util.escapeRegex(
$(this).val()
);
column
.search( val ? '^'+val+'$' : '', true, false )
.draw();
} );
column.data().unique().sort().each( function ( d, j ) {
var val = $('<div/>').html(d).text();
select.append( '<option value="' + val + '">' + val + '</option>' );
} );
} );
}
} );
// this removes duplicate dropdown values
var usedNames = {};
$("#lesson-table select > option").each(function () {
if (usedNames[this.value]) {
$(this).remove();
} else {
usedNames[this.value] = this.text;
}
});
So the change that was made in my datasource is that columns 1, the second column in the set, is now a comma separated list of items. Most of the time it is one item say: "Entertainment", but sometimes it can be "Entertainment, Sports, Healthcare" At the moment, it will show that list as an option in my dropdown, but what I need it to do is split them up and then filter by contains...not by exact.
Hope that makes sense. Can explain more if needed.
I am using datatable row grouping from https://datatables.net/examples/advanced_init/row_grouping.html and it works fine.
I have following scenario:
Now I want to calculate sum(sub-total) by each grouping abd show result in row at the end of grouping as you see in image.
At the end of listing , want to show a final row of total amount.
How to accomplish that.
Js used code is:
$(function() {
var table = $('#table').DataTable({
"columnDefs": [
{ "visible": false, "targets": 1 }
],
"order": [[ 1, 'asc' ]],
"displayLength": 25,
"drawCallback": function ( settings ) {
var api = this.api();
var rows = api.rows( {page:'current'} ).nodes();
var last=null;
api.column(1, {page:'current'} ).data().each( function ( group, i ) {
if ( last !== group ) {
$(rows).eq( i ).before(
'<tr class="group" style="background-color:#F5F5F5;"><td colspan="3">'+group+'</td></tr>'
);
last = group;
}
} );
}
});
});
For the same exemple here : https://datatables.net/examples/advanced_init/row_grouping.html
I have made some changes inside "drawCallback": function ( settings ) {
Check this fiddle https://jsfiddle.net/bLykqbo6/110/
I hope it helps
"drawCallback": function ( settings ) {
var api = this.api();
var rows = api.rows( {page:'current'} ).nodes();
var last = null;
var sum = 0;
var groupColumn = 1; //index of column which you are going to group by.
var amtColumn = 3; // index of column which you are going to sum.
api.column(groupColumn, {page:'current'} ).data().each( function ( group, i ) {
if ( last !== group ) {
api.rows().data().each( function(item){
if (item[groupColumn] == group){
sum = sum + (+item[amtColumn]);
}
});
$(rows).eq( i ).before(
'<tr class="group"><td colspan="2" style="background-color: #e7e7e7;"><b>'+group+'</b></td><td style="background-color: #e7e7e7;"><b>'+ sum +'</b></td></tr>'
);
last = group;
sum = 0;
}
});
}
I want to display "population" of various countries through the years in the same line chart. The data displayed is based on selections from a multi-select dropdown "Countries". Underlying Data Table has 3 columns:
Year, Country, Population
2012,countryA,33
2013,countryA,35
2014,countryA,40
2012,countryB,65
2013,countryB,70
2014,countryB,75
2012,countryC,15
2013,countryC,20
2014,countryC,25
I am trying to create a pivoted Data View from the underlying Data Table
The code I am using is:
function drawLineChart() {
var arr = $('#country').val();
var lineChartJson = $.ajax({
url: "../json/lineChart.json",
dataType: "json",
async: false
}).responseText;
var lineChartData = new google.visualization.DataTable(lineChartJson);
var view = new google.visualization.DataView(lineChartData);
var viewCols = [0];
for(var i = 0; i < arr.length; i++) {
var viewCols1 = [{
type: 'number',
label: arr[i],
calc: function (dt, row) {
return (dt.getValue(row, 1) == arr[i]) ? dt.getValue(row, 2) : null;
}
}];
viewCols = viewCols.concat(viewCols1);
}
view.setColumns(viewCols);
var aggCols = [{
column: 1,
type: 'number',
label: view.getColumnLabel(1),
aggregation: google.visualization.data.sum
}];
for(var i = 2; i < 4; i++) {
var aggCols1 = [{
column: i,
type: 'number',
label: view.getColumnLabel(i),
aggregation: google.visualization.data.sum
}];
aggCols = aggCols.concat(aggCols1);
}
var pivotedData = google.visualization.data.group(view, [0], aggCols);
But this does not seem to work as expected and I just get 1 Line in the chart with values for all countries added up (although I can see the legend for 3 countries)
On the other hand if I set my View columns as below, it works as expected.
view.setColumns([0, {
type: 'number',
label: arr[0],
calc: function (dt, row) {
return (dt.getValue(row, 1) == arr[0]) ? dt.getValue(row, 2) : null;
}
}, {
type: 'number',
label: arr[1],
calc: function (dt, row) {
// return values of C only for the rows where B = "bar"
return (dt.getValue(row, 1) == arr[1]) ? dt.getValue(row, 2) : null;
}
}, {
type: 'number',
label: arr[2],
calc: function (dt, row) {
return (dt.getValue(row, 1) == arr[2]) ? dt.getValue(row, 2) : null;
}
}]);
What is going wrong in the loop? Is something wrong with "concat" in the loop where I am creating View Columns? I also saw the viewCols array by using console.log and it seems to have the right elements
I was trying to follow the below post:
Creating pivoted DataView from existing google charts DataTable object
the problem has to do with scope
arr[i] is undefined within calc: function (dt, row)
here is another way to pivot the data...
google.charts.load('current', {
callback: function () {
var arr = [
'countryA',
'countryB',
'countryC'
];
var lineChartData = google.visualization.arrayToDataTable([
['Year', 'Country', 'Population'],
[2012,'countryA',33],
[2013,'countryA',35],
[2014,'countryA',40],
[2012,'countryB',65],
[2013,'countryB',70],
[2014,'countryB',75],
[2012,'countryC',15],
[2013,'countryC',20],
[2014,'countryC',25]
]);
// sort by year
lineChartData.sort([{column: 0}]);
// get unique countries
var countryGroup = google.visualization.data.group(
lineChartData,
[1]
);
// build country data table
var countryData = new google.visualization.DataTable({
cols: [
{label: 'Year', type: 'number'},
]
});
// add column for each country
for (var i = 0; i < countryGroup.getNumberOfRows(); i++) {
countryData.addColumn(
{label: countryGroup.getValue(i, 0), type: 'number'}
);
}
// add row for each year / country
var rowYear;
var rowIndex;
for (var i = 0; i < lineChartData.getNumberOfRows(); i++) {
if (rowYear !== lineChartData.getValue(i, 0)) {
rowYear = lineChartData.getValue(i, 0);
rowIndex = countryData.addRow();
countryData.setValue(rowIndex, 0, rowYear);
}
for (var x = 1; x < countryData.getNumberOfColumns(); x++) {
if (countryData.getColumnLabel(x) === lineChartData.getValue(i, 1)) {
countryData.setValue(rowIndex, x, lineChartData.getValue(i, 2));
}
}
}
// draw agg table
new google.visualization.ChartWrapper({
chartType: 'Table',
containerId: 'table-div',
dataTable: countryData
}).draw();
// draw line chart
new google.visualization.ChartWrapper({
chartType: 'LineChart',
containerId: 'chart-div',
dataTable: countryData
}).draw();
},
packages: ['corechart', 'table']
});
<script src="https://www.gstatic.com/charts/loader.js"></script>
<div id="table-div"></div>
<div id="chart-div"></div>
I could figure out the problem with my code above.
"calc" is the callback function in loop. So only last value of loop variable "i" is visible within the loop.
Putting a wrapper function fixes it:
for(var i = 0; i <= arr.length; i++)(function(i) {
var viewCols1 = [{
type: 'number',
label: arr[i],
calc: function (dt, row) {
return (dt.getValue(row, 1) == arr[i]) ? dt.getValue(row, 2) : null;
}
}];
viewCols = viewCols.concat(viewCols1);
})(i);
I have created a function for getting all links and clicking on them and then handle the windows using another method. Everything works fine, but now I want to put a condition that only few links are clicked. So the function is like:
this.getLinks = function(){
browser.driver.findElements(that.links).then(function(foundElements){
var val;
for(var i =0;i<foundElements.length;i++){
browser.sleep(3000);
foundElements[i].getText().then(function(textValue){
val = textValue;
**console.log(val);**
});
if(val != '??????' || val != '?????????' || val != '??????'){
foundElements[i].click();
that.getWindows();
}
}
});
};
I want to get the value of val out of promise so that I can put a condition that only selected links are clicked.
Use filter() to filter out elements based on the text value and each() to apply a function to each element of the filtered elements:
this.getLinks = function() {
element.all(that.links).filter(function(elm) {
return elm.getText().then(function (val) {
return val != '??????' || val != '?????????' || val != '??????';
});
}).each(function (elm) {
elm.click();
});
};
Hi I just want to populate the select or comboBox.
I am able to populate both with the searchAttr to any string from JSON. But not so when there are null values.
JSON string :
[{"batch":"0000001000"},{"batch":"0000"},{"batch":""},{"batch":null}]
dojo code:
var selBatch = new ComboBox //located at the left side of the page and it is the second select box in a row
(
{ id:'ID_selBatch',
value:'',
searchAttr:'batch',
placeHolder:'Select...',
style:{width:'150px'},
}, 'node_selBatch'
);
on(selTest, 'change', function(valueCard)
{
var selectedTest = this.get('displayedValue');
var selBatch = registry.byId('ID_selBatch');
console.debug('Connecting to gatherbatches.php ...');
request.post('gatherbatches.php',
{ data:{nameDB:registry.byId('ID_selPCBA').value, nameCard : valueCard},
handleAs: "json"}).then
(
function(response)
{
var memoStore2 = new Memory({data:response});
selBatch.set('store', memoStore2);
selBatch.set('value','');
console.debug('List of batches per Test is completed! Good OK! ');
},
function(error)
{
alert("Batch's Error:"+error);
console.debug('Problem: Listing batches per Test in select Test is BAD!');
}
);
selBatch.startup();
});
Error :
TypeError: _32[this.searchAttr] is null
defer() -> _WidgetBase.js (line 331)
_3() -> dojo.js (line 15)
_f.hitch(this,fcn)(); -> _WidgetBase.js (line 331)
Please advise though it might strange to have null values populate in the select box but these null values are related to data in other columns in database, so the null values included so that I can apply mysql scripts later. Or do you have other better suggestion?
Clement
You can create a QueryFilter as in this jsfiddle to achieve what you want, but it might be simpler to have two data items. Your original model with possibly null batch properties, and the model you pass to the store which is used by the ComboBox.
But anyway, this can work:
function createQueryFilter(originalQuery, filter) {
return function () {
var originalResults = originalQuery.apply(this, arguments);
var results = originalResults.filter(filter);
return QueryResults(results);
};
}
and
var memoStore = new Memory({
data: data
});
memoStore.query = createQueryFilter(memoStore.query, function (item) {
console.log(item);
return !!item.batch;
});
and the dummy data:
function createData1() {
var data = [];
for (var i = 0; i < 10; i++) {
data.push({
name: "" + i,
batch: (0 === i % 2) ? "batch" + i : null
});
}
return data;
}
Screenshot. The odd numbered batch items are null in my example.