import React from 'react';
import FilterBuilder, { CustomOperation } from 'devextreme-react/filter-builder';
import { filter, fields, groupOperations } from './data.js';
import { formatValue } from './helpers.js';
import { EditorComponent } from './EditorComponent.js';
class App extends React.Component {
constructor(props) {
super(props);
this.state = {
value: filter
};
this.onValueChanged = this.onValueChanged.bind(this);
this.updateTexts = this.updateTexts.bind(this);
}
render() {
return (
<div>
<FilterBuilder
fields={fields}
value={this.state.value}
onInitialized={this.updateTexts}
groupOperations={groupOperations}
onValueChanged={this.onValueChanged}
>
<CustomOperation
name="anyof"
caption="Is any of"
icon="check"
editorComponent={EditorComponent}
calculateFilterExpression={calculateFilterExpression}
/>
</FilterBuilder>
<div className="results">
<div>
<b>Value</b>
<pre>{this.state.filterText}</pre>
</div>
<div>
<b>DataSource's filter expression</b>
<pre>{this.state.dataSourceText}</pre>
</div>
</div>
</div>
);
}
updateTexts(e) {
this.setState({
filterText: formatValue(e.component.option('value')),
dataSourceText: formatValue(e.component.getFilterExpression())
});
}
onValueChanged(e) {
this.setState({ value: e.value });
this.updateTexts(e);
}
}
function calculateFilterExpression(filterValue, field) {
return filterValue && filterValue.length
&& Array.prototype.concat.apply([], filterValue.map(function(value) {
return [[field.dataField, '=', value], 'or'];
})).slice(0, -1);
}
export default App;
import React from 'react';
import TagBox from 'devextreme-react/tag-box';
import { categories } from './data.js';
export class EditorComponent extends React.Component {
constructor(props) {
super(props);
this.onValueChanged = this.onValueChanged.bind(this);
}
render() {
return (
<TagBox
defaultValue={this.props.data.value}
items={categories}
onValueChanged={this.onValueChanged}
width="auto"
/>
);
}
onValueChanged(e) {
this.props.data.setValue(e.value && e.value.length ? e.value : null);
}
}
export function formatValue(value, spaces) {
if(value && Array.isArray(value[0])) {
var TAB_SIZE = 4;
spaces = spaces || TAB_SIZE;
return `[${getLineBreak(spaces)}${value.map(function(item) {
return 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(' ')}`;
}
import React from 'react';
import ReactDOM from 'react-dom';
import App from './App.js';
ReactDOM.render(
<App />,
document.getElementById('app')
);
<!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" />
<link rel="stylesheet" type="text/css" href="https://cdn3.devexpress.com/jslib/20.2.5/css/dx.common.css" />
<link rel="stylesheet" type="text/css" href="https://cdn3.devexpress.com/jslib/20.2.5/css/dx.light.css" />
<link rel="stylesheet" type="text/css" href="styles.css" />
<script src="https://unpkg.com/core-js@2.4.1/client/shim.min.js"></script>
<script src="https://unpkg.com/systemjs@0.21.3/dist/system.js"></script>
<script type="text/javascript" src="config.js"></script>
<script type="text/javascript">
System.import('./index.js');
</script>
</head>
<body class="dx-viewport">
<div class="demo-container">
<div id="app"></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;
}
export const filter = [
['Category', 'anyof', ['Automation', 'Monitors']],
'or',
[
['Category', '=', 'Televisions'],
'and',
['Price', 'between', [2000, 4000]]
]
];
export const categories = [
'Video Players',
'Televisions',
'Monitors',
'Projectors',
'Automation'
];
export const groupOperations = ['and', 'or'];
export const fields = [{
dataField: 'Name'
}, {
dataField: 'Price',
dataType: 'number',
format: 'currency'
}, {
dataField: 'Current_Inventory',
dataType: 'number',
caption: 'Inventory'
}, {
dataField: 'Category',
filterOperations: ['=', 'anyof'],
lookup: {
dataSource: categories
}
}];
System.config({
transpiler: 'plugin-babel',
meta: {
'devextreme/localization.js': {
"esModule": true
},
},
paths: {
'npm:': 'https://unpkg.com/'
},
defaultExtension: 'js',
map: {
'react': 'npm:react@16.14.0/umd/react.development.js',
'react-dom': 'npm:react-dom@16.14.0/umd/react-dom.development.js',
'prop-types': 'npm:prop-types@15.7.2/prop-types.js',
'rrule': 'npm:rrule@2.6.6/dist/es5/rrule.js',
'luxon': 'npm:luxon@1.25.0/build/global/luxon.min.js',
'es6-object-assign': 'npm:es6-object-assign@1.1.0',
'devextreme': 'npm:devextreme@20.2.5',
'devextreme-react': 'npm:devextreme-react@20.2.5',
'jszip': 'npm:jszip@3.5.0/dist/jszip.min.js',
'devextreme-quill': 'npm:devextreme-quill@0.9.8/dist/dx-quill.min.js',
'devexpress-diagram': 'npm:devexpress-diagram@2.0.11/dist/dx-diagram.js',
'devexpress-gantt': 'npm:devexpress-gantt@2.0.18/dist/dx-gantt.js',
'preact': 'npm:preact@10.5.11/dist/preact.js',
'preact/hooks': 'npm:preact@10.5.11/hooks/dist/hooks.js',
// SystemJS plugins
'plugin-babel': 'npm:systemjs-plugin-babel@0.0.25/plugin-babel.js',
'systemjs-babel-build': 'npm:systemjs-plugin-babel@0.0.25/systemjs-babel-browser.js'
},
packages: {
'devextreme': {
defaultExtension: 'js'
},
'devextreme-react': {
main: 'index.js'
},
'devextreme/events/utils': {
main: 'index'
},
'devextreme/events': {
main: 'index'
},
'es6-object-assign': {
main: './index.js',
defaultExtension: 'js'
}
},
babelOptions: {
sourceMaps: false,
stage0: true,
react: true
}
});