Overview

This sample demonstrates the basic features of the Firestore class.

The Firestore class allows you to load and edit data stored in Firestore collections, exposing each collection as a CollectionView.

You can load, edit, filter, sort, group, and paginate the views as usual.

Editing requires authentication and is not demonstrated in this sample.

Learn about FlexGrid | Firestore Overview Documentation | Cloud API Reference

import 'bootstrap.css'; import '@mescius/wijmo.styles/wijmo.css'; import './styles.css'; import { Firestore } from '@mescius/wijmo.cloud'; import { ComboBox } from '@mescius/wijmo.input'; import { FlexGrid, DataMap } from '@mescius/wijmo.grid'; import { FlexChart } from '@mescius/wijmo.chart'; document.readyState === 'complete' ? init() : window.onload = init; function init() { // create the Firestore data source const API_KEY = 'AIzaSyBeEwDqO_h1KOMRekRrDizOZweSiTXRj2Y'; const PROJECT_ID = 'test-9c0be'; let fireStore = new Firestore(PROJECT_ID, API_KEY, { collections: ['Products', 'Categories', 'Suppliers'] }); // add a ComboBox so users can see and select product categories: new ComboBox('#categoryCombo', { placeholder: '(All Categories)', isRequired: false, displayMemberPath: 'CategoryName', itemsSource: fireStore.getCollection('Categories'), selectedIndexChanged: (s, e) => { let cat = s.selectedItem; fireStore.getCollection('Products').filter = item => { return cat == null || cat.CategoryID == item.CategoryID; }; } }); // show products for the selected category as a grid let supplierMap = new DataMap(fireStore.getCollection('Suppliers'), 'SupplierID', 'CompanyName'); new FlexGrid('#productGrid', { selectionMode: 'MultiRange', showMarquee: true, isReadOnly: true, autoGenerateColumns: false, columns: [ { binding: 'ProductName', header: 'Product Name', width: 200 }, { binding: 'UnitPrice', header: 'Unit Price', format: 'n2' }, { binding: 'QuantityPerUnit', header: 'Quantity Per Unit', width: 150 }, { binding: 'SupplierID', header: 'Supplier', dataMap: supplierMap, width: 200 }, { binding: 'UnitsInStock', header: 'In Stock', format: 'n0' }, { binding: 'UnitsOnOrder', header: 'On Order', format: 'n0' }, ], itemsSource: fireStore.getCollection('Products') }); // show products for the selected category as a chart new FlexChart('#productChart', { chartType: 'Bar', axisX: { majorGrid: true, axisLine: false }, axisY: { majorGrid: false, axisLine: false, reversed: true }, legend: { position: 'Bottom' }, bindingX: 'ProductName', series: [ { binding: 'UnitPrice', name: 'Product Unit Prices (US$)' } ], itemsSource: fireStore.getCollection('Products') }); }
<!DOCTYPE html> <html lang="en"> <head> <meta charset="utf-8"> <meta http-equiv="X-UA-Compatible" content="IE=edge"> <title>MESCIUS Wijmo Firestore Overview</title> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <!-- SystemJS --> <script src="https://cdnjs.cloudflare.com/ajax/libs/systemjs/0.21.5/system.src.js" integrity="sha512-skZbMyvYdNoZfLmiGn5ii6KmklM82rYX2uWctBhzaXPxJgiv4XBwJnFGr5k8s+6tE1pcR1nuTKghozJHyzMcoA==" crossorigin="anonymous"></script> <script src="systemjs.config.js"></script> <script> System.import('./src/app'); </script> </head> <body> <div class="container-fluid"> <label> Category <div id="categoryCombo"></div> </label> <div class="row"> <div class="col-sm-6"> <div id="productGrid"></div> </div> <div class="col-sm-6"> <div id="productChart"></div> </div> </div> </div> </body> </html>
.wj-flexgrid, .wj-flexchart { height: 350px; } .wj-axis-y .wj-label { font-size: 85%; } label { font-weight: normal; } label .wj-control { font-weight: bold; }
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