Edit and Persist Views (Angular)

Views in the PivotEngine are defined by the viewDefinition property.

You can use the engine's viewDefinition property to persist views as application settings.

This sample shows how you can select pre-defined views, edit the current view with the PivotPanel, and save views to be loaded later.

Learn about OLAP | PivotEngine API Reference

This example uses Angular.

import 'bootstrap.css'; import '@mescius/wijmo.styles/wijmo.css'; import './styles.css'; // import '@angular/compiler'; import { Component, Inject, enableProdMode, ɵresolveComponentResources } from '@angular/core'; import { BrowserModule, bootstrapApplication } from '@angular/platform-browser'; import '@mescius/wijmo.touch'; // support drag/drop on touch devices import { PivotEngine } from '@mescius/wijmo.olap'; import { WjOlapModule } from '@mescius/wijmo.angular2.olap'; import { DataService } from './app.data'; // @Component({ standalone: true, providers: [DataService], imports: [WjOlapModule, BrowserModule], selector: 'app-component', templateUrl: 'src/app.component.html', }) export class AppComponent { ng: PivotEngine; // constructor(@Inject(DataService) private dataService: DataService) { this.ng = new PivotEngine({ autoGenerateFields: false, // turn off auto-generation itemsSource: dataService.getData(10000), showRowTotals: 'Subtotals', fields: [ { binding: 'date', header: 'Quarter', format: '"Q"q yyyy' }, { binding: 'date', header: 'Month', format: 'MMMM' }, { binding: 'agent', header: 'Agent' }, { binding: 'region', header: 'Region' }, { binding: 'platform', header: 'Platform' }, { binding: 'product', header: 'Product' }, { binding: 'sales', header: 'Sales', format: 'c2' }, { binding: 'downloads', header: 'Downloads', format: 'n0' }, { binding: 'revenue', header: 'Revenue', format: 'c2' }, ], rowFields: ['Quarter'], columnFields: ['Platform'], valueFields: ['Sales', 'Downloads', 'Revenue'], }); } // onSaveClick() { localStorage.viewDefinition = this.ng.viewDefinition; } // onLoadClick() { if (localStorage.viewDefinition) { this.ng.viewDefinition = localStorage.viewDefinition; } } // onButtonClick(e: MouseEvent) { var ng = this.ng; switch ((e.target as HTMLElement).id) { // case 'basic': ng.rowFields.clear(); ng.columnFields.clear(); ng.valueFields.clear(); ng.rowFields.push('Quarter'); ng.columnFields.push('Platform'); ng.valueFields.push('Sales', 'Downloads', 'Revenue'); break; // case 'region': ng.rowFields.clear(); ng.columnFields.clear(); ng.valueFields.clear(); ng.rowFields.push('Quarter', 'Region'); ng.valueFields.push('Sales', 'Downloads', 'Revenue'); break; // case 'agent-product': ng.rowFields.clear(); ng.columnFields.clear(); ng.valueFields.clear(); ng.rowFields.push('Quarter', 'Agent'); ng.columnFields.push('Platform', 'Product'); ng.valueFields.push('Sales', 'Downloads', 'Revenue'); break; // case 'quarter-month': ng.rowFields.clear(); ng.columnFields.clear(); ng.valueFields.clear(); ng.rowFields.push('Quarter', 'Month'); ng.valueFields.push('Sales', 'Downloads', 'Revenue'); break; } } } // // enableProdMode(); // Resolve resources (templateUrl, styleUrls etc), After resolution all URLs have been converted into `template` strings. ɵresolveComponentResources(fetch).then(() => { // Bootstrap application bootstrapApplication(AppComponent).catch((err) => console.error(err)); });
<!DOCTYPE html> <html lang="en"> <head> <meta charset="utf-8"> <meta http-equiv="X-UA-Compatible" content="IE=edge"> <title>MESCIUS Wijmo OLAP Pivot Engine Defining Views</title> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <!-- Polyfills --> <script src="node_modules/core-js/client/shim.min.js"></script> <script src="node_modules/zone.js/fesm2015/zone.min.js"></script> <!-- 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> // workaround to load 'rxjs/operators' from the rxjs bundle System.import('rxjs').then(function (m) { System.set(SystemJS.resolveSync('rxjs/operators'), System.newModule(m.operators)); System.import('./src/app.component'); }); </script> </head> <body> <app-component></app-component> </body> </html>
<div class="container-fluid"> <div id="buttons" class="buttons" (click)="onButtonClick($event)"> <button id="basic" class="btn btn-success"> Quarterly/Platform View </button> <button id="region" class="btn btn-success"> Regional View </button> <button id="agent-product" class="btn btn-success"> Agent/Product View </button> <button id="quarter-month" class="btn btn-success"> Quarterly/Monthly View </button> </div> <p> Use these buttons to save and load views: </p> <div class="buttons"> <button id="save" class="btn btn-primary" (click)="onSaveClick()"> Save View </button> <button id="load" class="btn btn-primary" (click)="onLoadClick()"> Load View </button> </div> <div class="row"> <div class="col-sm-6"> <p> Use the <b>PivotPanel</b> control to edit the view: </p> <wj-pivot-panel [itemsSource]="ng"></wj-pivot-panel> </div> <div class="col-sm-6"> <p> Use the <b>PivotGrid</b> control to see the results: </p> <wj-pivot-grid [itemsSource]="ng"></wj-pivot-grid> </div> </div> </div>
import { Injectable } from '@angular/core'; import * as wjCore from '@mescius/wijmo'; export interface DataItem { orderId: number; platform: string; product: string; agent: string; region: string; date: Date; sales: number; downloads: number; revenue: number; } var products = [ { product: 'Wijmo', platform: 'Web' }, { product: 'ActiveReports', platform: 'Desktop' }, { product: 'ActiveReportsJS', platform: 'Web' }, { product: 'ComponentOne', platform: 'Desktop' }, { product: 'Spread', platform: 'Desktop' }, { product: 'SpreadJS', platform: 'Web' }, { product: 'GCDocs', platform: 'Desktop' } ]; var agents = [ { agent: 'Ashlyn Dunlop', region: 'East' }, { agent: 'Keith Vang', region: 'East' }, { agent: 'Bobbi Rodrigues', region: 'West' }, { agent: 'Charli Medina', region: 'West' }, { agent: 'Kaitlin Salt', region: 'West' }, ]; function randomInt(min: number, max: number) { return Math.floor(Math.random() * (max - min + 1) + min); } @Injectable() export class DataService { getData(cnt: number): DataItem[] { var year = new Date().getFullYear(), data = []; for(var i = 0; i < cnt; i++) { let productIndex = randomInt(0, 6); let agentIndex = randomInt(0, 4); data.push({ orderId: randomInt(1, 10000), platform: products[productIndex].platform, product: products[productIndex].product, agent: agents[agentIndex].agent, region: agents[agentIndex].region, date: new Date(year - randomInt(0, 2), randomInt(0, 11), randomInt(0, 27)), sales: randomInt(1500, 3500), downloads: randomInt(10, 200), revenue: randomInt(500, 1000) }); } return data; } }
.buttons { display: flex; margin-bottom: 12px; } .buttons .btn { margin: 6px; white-space: normal; } body { margin-bottom: 36pt; }
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