$(() => {
$('#filterBuilder').dxFilterBuilder({
fields,
value: filter,
maxGroupLevel: 1,
groupOperations: ['and', 'or'],
onValueChanged: updateTexts,
onInitialized: updateTexts,
customOperations: [{
name: 'anyof',
caption: 'Is any of',
icon: 'check',
editorTemplate(conditionInfo) {
return $('<div>').dxTagBox({
value: conditionInfo.value,
items: categories,
inputAttr: { 'aria-label': 'Category' },
onValueChanged(e) {
conditionInfo.setValue(e.value && e.value.length ? e.value : null);
},
width: 'auto',
});
},
calculateFilterExpression(filterValue, field) {
return filterValue && filterValue.length
&& Array.prototype.concat.apply([], filterValue.map((value) => [[field.dataField, '=', value], 'or'])).slice(0, -1);
},
}],
});
function updateTexts(e) {
$('#filterText').text(formatValue(e.component.option('value')));
$('#dataSourceText').text(formatValue(e.component.getFilterExpression()));
}
function formatValue(value, spaces = TAB_SIZE) {
if (value && Array.isArray(value[0])) {
return `[${getLineBreak(spaces)}${value.map((item) => (Array.isArray(item[0]) ? formatValue(item, spaces + TAB_SIZE) : JSON.stringify(item))).join(`,${getLineBreak(spaces)}`)}${getLineBreak(spaces - TAB_SIZE)}]`;
}
return JSON.stringify(value);
}
function getLineBreak(spaces) {
return `\r\n${new Array(spaces + 1).join(' ')}`;
}
});
<!DOCTYPE html>
<html>
<head>
<title>DevExtreme Demo</title>
<meta http-equiv="X-UA-Compatible" content="IE=edge" />
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0" />
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.5.1/jquery.min.js"></script>
<script>window.jQuery || document.write(decodeURIComponent('%3Cscript src="js/jquery.min.js"%3E%3C/script%3E'))</script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/cldrjs/0.4.4/cldr.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/cldrjs/0.4.4/cldr/event.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/cldrjs/0.4.4/cldr/supplemental.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/cldrjs/0.4.4/cldr/unresolved.min.js"></script>
<link rel="stylesheet" type="text/css" href="https://cdn3.devexpress.com/jslib/23.1.5/css/dx.light.css" />
<link rel="stylesheet" type="text/css" href="https://maxcdn.bootstrapcdn.com/font-awesome/4.6.3/css/font-awesome.min.css" />
<script src="https://cdn3.devexpress.com/jslib/23.1.5/js/dx.all.js"></script>
<link rel="stylesheet" type="text/css" href="styles.css" />
<script src="data.js"></script>
<script src="index.js"></script>
</head>
<body class="dx-viewport">
<div class="demo-container">
<div id="filterBuilder"></div>
<div class="results">
<div>
<b>Value</b>
<pre id="filterText"></pre>
</div>
<div>
<b>DataSource's filter expression</b>
<pre id="dataSourceText"></pre>
</div>
</div>
</div>
</body>
</html>
.results {
margin-top: 50px;
display: flex;
justify-content: space-between;
}
.results > div {
flex-basis: 49%;
max-width: 50%;
background-color: rgba(191, 191, 191, 0.15);
position: relative;
}
.results b {
position: absolute;
top: -25px;
}
.results pre {
padding: 10px 20px;
height: 100%;
font-size: 13px;
overflow: auto;
box-sizing: border-box;
}
.dx-tagbox {
min-width: 150px;
}
.dx-filterbuilder .dx-numberbox {
width: 80px;
}
const filter = [
['Category', 'anyof', ['Automation', 'Monitors']],
'or',
[
['Category', '=', 'Televisions'],
'and',
['Price', 'between', [2000, 4000]],
],
];
const categories = [
'Video Players',
'Televisions',
'Monitors',
'Projectors',
'Automation',
];
const fields = [{
dataField: 'Name',
}, {
dataField: 'Price',
dataType: 'number',
format: 'currency',
}, {
dataField: 'Current_Inventory',
dataType: 'number',
caption: 'Inventory',
}, {
dataField: 'Category',
filterOperations: ['=', 'anyof'],
lookup: {
dataSource: categories,
},
},
];
const TAB_SIZE = 4;