RestCollectionView JSONPlaceholder

このサンプルは、RestCollectionView クラスを拡張して、JSONPlaceholderソースと通信するカスタムRestCollectionView クラスを作成する方法を示しています。 このデータソースは、サーバー側のページング、並べ替え、またはフィルタリングをサポートしていません。

import 'bootstrap.css'; import '@grapecity/wijmo.styles/wijmo.css'; import './styles.css'; // import { RestCollectionViewJson } from './rest-collection-view-json'; import { CollectionViewNavigator } from '@grapecity/wijmo.input'; import { FlexGrid } from '@grapecity/wijmo.grid'; import { FlexGridFilter } from '@grapecity/wijmo.grid.filter'; // document.readyState === 'complete' ? init() : window.onload = init; // function init() { // create the grid to show the data let theGrid = new FlexGrid('#theGrid', { allowAddNew: true, allowDelete: true, showMarquee: true, selectionMode: 'MultiRange', deferResizing: true, alternatingRowStep: 0, // create RestCollectionViewJson itemsSource: new RestCollectionViewJson('todos', { key: 'id', pageSize: 8 }), columns: [ { binding: 'userId', header: 'ユーザID' }, { binding: 'id', header: 'ID', }, { binding: 'title', header: 'タイトル' }, { binding: 'completed', header: '完了' }, ], autoGenerateColumns: false, }); // auto-number row headers theGrid.topLeftCells.columns[0].cellTemplate = $ => $.text || ($.row.index + 1).toString(); // add the filter new FlexGridFilter(theGrid); // add the navigator new CollectionViewNavigator('#theNavigator', { cv: theGrid.collectionView, byPage: true }); // toggle pagination document.getElementById('paging').addEventListener('click', e => { let paging = e.target.checked, view = theGrid.collectionView; view.pageSize = paging ? 8 : 0; }); }
<!DOCTYPE html> <html lang="en"> <head> <meta charset="utf-8"> <meta http-equiv="X-UA-Compatible" content="IE=edge"> <title>GrapeCity RestCollectionView JSON Placeholder</title> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <!-- SystemJS --> <script src="node_modules/systemjs/dist/system.src.js"></script> <script src="systemjs.config.js"></script> <script> System.import('./src/app'); </script> </head> <body> <div class="container-fluid"> <label> ページング <input id="paging" type="checkbox" checked> </label> <br /> <div id="theNavigator"></div> <div id="theGrid"></div> </div> </body> </html>
body { margin-bottom: 36pt; } .wj-flexgrid { max-height: 400px; }
var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) { return new (P || (P = Promise))(function (resolve, reject) { function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } } function rejected(value) { try { step(generator["throw"](value)); } catch (e) { reject(e); } } function step(result) { result.done ? resolve(result.value) : new P(function (resolve) { resolve(result.value); }).then(fulfilled, rejected); } step((generator = generator.apply(thisArg, _arguments || [])).next()); }); }; import { RestCollectionView } from '@grapecity/wijmo.rest'; import { httpRequest, copy, asString, assert } from '@grapecity/wijmo'; // regex used to parse dates const _rxDate = /^\d{4}\-\d{2}\-\d{2}T\d{2}\:\d{2}\:\d{2}|\/Date\([\d\-]*?\)/; /** * Class that extends {@link ServerCollectionViewBase} to support JSOnPlaceholder sources. * * For more details on JSOnPlaceholder sources, please see * https://jsonplaceholder.typicode.com/guide/ */ export class RestCollectionViewJson extends RestCollectionView { /** * Initializes a new instance of the {@link RestCollectionViewJson} class. * * @param tableName Name of the table (entity) to retrieve from the service. * @param options JavaScript object containing initialization data (property * values and event handlers) for the {@link ODataCollectionView}. */ constructor(tableName, options) { super(); this._url = 'https://jsonplaceholder.typicode.com/'; this._tbl = asString(tableName); copy(this, options); // this source does not support server-side pagination, sorting, or filtering. this.pageOnServer = false; this.sortOnServer = false; this.filterOnServer = false; } /** * Gets or the name of the key field. * * Key fields are required for update operations (add/remove/delete). */ get key() { return this._key; } set key(value) { this._key = asString(value); } // ** implementation _getWriteUrl(item) { let url = this._url + this._tbl; assert(this.key != null, 'write operations require keys'); return url + '/' + item[this.key]; } _jsonReviver(key, value) { if (typeof value === 'string' && _rxDate.test(value)) { value = value.indexOf('/Date(') == 0 // verbosejson ? new Date(parseInt(value.substr(6))) : new Date(value); } return value; } // ** overrides getItems() { return __awaiter(this, void 0, void 0, function* () { // cancel any pending requests if (this._pendingRequest) { //console.log('aborting pending request'); this._pendingRequest.abort(); } return new Promise(resolve => { let url = this._url + this._tbl; this._pendingRequest = httpRequest(url, { success: (xhr) => __awaiter(this, void 0, void 0, function* () { let arr = JSON.parse(xhr.responseText, this._jsonReviver); resolve(arr); }), error: xhr => this._raiseError(xhr.responseText, false), complete: xhr => this._pendingRequest = null // no pending requests }); }); }); } addItem(item) { return new Promise(resolve => { let url = this._url + this._tbl; let requestHeaders = { 'Content-Type': 'application/json; charset=UTF-8' }; if (this.requestHeaders) { for (let k in this.requestHeaders) { requestHeaders[k] = this.requestHeaders[k]; } } let newItem = {}; for (let k in item) { if (k != this.key) { newItem[k] = item[k]; } } httpRequest(url, { method: 'POST', requestHeaders: requestHeaders, data: newItem, success: xhr => { let newItem = JSON.parse(xhr.responseText, this._jsonReviver); item[this.key] = newItem[this.key]; this.refresh(); }, error: xhr => this._raiseError(xhr.responseText, true) }); }); } patchItem(item) { return new Promise((resolve) => { let url = this._getWriteUrl(item); httpRequest(url, { method: 'PUT', requestHeaders: this.requestHeaders, data: item, success: xhr => resolve(item), error: xhr => this._raiseError(xhr.responseText, true) }); }); } deleteItem(item) { return new Promise(resolve => { let url = this._getWriteUrl(item); httpRequest(url, { method: 'DELETE', requestHeaders: this.requestHeaders, success: xhr => { resolve(item); }, error: xhr => this._raiseError(xhr.responseText, true) }); }); } }
(function (global) { System.config({ transpiler: 'plugin-babel', babelOptions: { es2015: true }, meta: { '*.css': { loader: 'css' } }, paths: { // paths serve as alias 'npm:': 'node_modules/' }, // map tells the System loader where to look for things map: { 'jszip': 'npm:jszip/dist/jszip.js', '@grapecity/wijmo': 'npm:@grapecity/wijmo/index.js', '@grapecity/wijmo.input': 'npm:@grapecity/wijmo.input/index.js', '@grapecity/wijmo.styles': 'npm:@grapecity/wijmo.styles', '@grapecity/wijmo.cultures': 'npm:@grapecity/wijmo.cultures', '@grapecity/wijmo.chart': 'npm:@grapecity/wijmo.chart/index.js', '@grapecity/wijmo.chart.analytics': 'npm:@grapecity/wijmo.chart.analytics/index.js', '@grapecity/wijmo.chart.animation': 'npm:@grapecity/wijmo.chart.animation/index.js', '@grapecity/wijmo.chart.annotation': 'npm:@grapecity/wijmo.chart.annotation/index.js', '@grapecity/wijmo.chart.finance': 'npm:@grapecity/wijmo.chart.finance/index.js', '@grapecity/wijmo.chart.finance.analytics': 'npm:@grapecity/wijmo.chart.finance.analytics/index.js', '@grapecity/wijmo.chart.hierarchical': 'npm:@grapecity/wijmo.chart.hierarchical/index.js', '@grapecity/wijmo.chart.interaction': 'npm:@grapecity/wijmo.chart.interaction/index.js', '@grapecity/wijmo.chart.radar': 'npm:@grapecity/wijmo.chart.radar/index.js', '@grapecity/wijmo.chart.render': 'npm:@grapecity/wijmo.chart.render/index.js', '@grapecity/wijmo.chart.webgl': 'npm:@grapecity/wijmo.chart.webgl/index.js', '@grapecity/wijmo.chart.map': 'npm:@grapecity/wijmo.chart.map/index.js', '@grapecity/wijmo.gauge': 'npm:@grapecity/wijmo.gauge/index.js', '@grapecity/wijmo.grid': 'npm:@grapecity/wijmo.grid/index.js', '@grapecity/wijmo.grid.detail': 'npm:@grapecity/wijmo.grid.detail/index.js', '@grapecity/wijmo.grid.filter': 'npm:@grapecity/wijmo.grid.filter/index.js', '@grapecity/wijmo.grid.search': 'npm:@grapecity/wijmo.grid.search/index.js', '@grapecity/wijmo.grid.grouppanel': 'npm:@grapecity/wijmo.grid.grouppanel/index.js', '@grapecity/wijmo.grid.multirow': 'npm:@grapecity/wijmo.grid.multirow/index.js', '@grapecity/wijmo.grid.transposed': 'npm:@grapecity/wijmo.grid.transposed/index.js', '@grapecity/wijmo.grid.transposedmultirow': 'npm:@grapecity/wijmo.grid.transposedmultirow/index.js', '@grapecity/wijmo.grid.pdf': 'npm:@grapecity/wijmo.grid.pdf/index.js', '@grapecity/wijmo.grid.sheet': 'npm:@grapecity/wijmo.grid.sheet/index.js', '@grapecity/wijmo.grid.xlsx': 'npm:@grapecity/wijmo.grid.xlsx/index.js', '@grapecity/wijmo.grid.selector': 'npm:@grapecity/wijmo.grid.selector/index.js', '@grapecity/wijmo.grid.cellmaker': 'npm:@grapecity/wijmo.grid.cellmaker/index.js', '@grapecity/wijmo.nav': 'npm:@grapecity/wijmo.nav/index.js', '@grapecity/wijmo.odata': 'npm:@grapecity/wijmo.odata/index.js', '@grapecity/wijmo.olap': 'npm:@grapecity/wijmo.olap/index.js', '@grapecity/wijmo.rest': 'npm:@grapecity/wijmo.rest/index.js', '@grapecity/wijmo.pdf': 'npm:@grapecity/wijmo.pdf/index.js', '@grapecity/wijmo.pdf.security': 'npm:@grapecity/wijmo.pdf.security/index.js', '@grapecity/wijmo.viewer': 'npm:@grapecity/wijmo.viewer/index.js', '@grapecity/wijmo.xlsx': 'npm:@grapecity/wijmo.xlsx/index.js', '@grapecity/wijmo.undo': 'npm:@grapecity/wijmo.undo/index.js', '@grapecity/wijmo.interop.grid': 'npm:@grapecity/wijmo.interop.grid/index.js', '@grapecity/wijmo.touch': 'npm:@grapecity/wijmo.touch/index.js', '@grapecity/wijmo.cloud': 'npm:@grapecity/wijmo.cloud/index.js', '@grapecity/wijmo.barcode': 'npm:@grapecity/wijmo.barcode/index.js', '@grapecity/wijmo.barcode.common': 'npm:@grapecity/wijmo.barcode.common/index.js', '@grapecity/wijmo.barcode.composite': 'npm:@grapecity/wijmo.barcode.composite/index.js', '@grapecity/wijmo.barcode.specialized': 'npm:@grapecity/wijmo.barcode.specialized/index.js', 'jszip': 'npm:jszip/dist/jszip.js', 'bootstrap.css': 'npm:bootstrap/dist/css/bootstrap.min.css', 'css': 'npm:systemjs-plugin-css/css.js', 'plugin-babel': 'npm:systemjs-plugin-babel/plugin-babel.js', 'systemjs-babel-build':'npm:systemjs-plugin-babel/systemjs-babel-browser.js' }, // packages tells the System loader how to load when no filename and/or no extension packages: { src: { defaultExtension: 'js' }, "node_modules": { defaultExtension: 'js' }, } }); })(this);