import 'bootstrap.css';
import '@mescius/wijmo.styles/wijmo.css';
import './styles.css';
//
import { RestGroupCollectionView } from "./rest-group-collection-view";
import { DataType, createElement } from '@mescius/wijmo';
import { FlexGrid } from '@mescius/wijmo.grid';
import { FlexGridFilter } from '@mescius/wijmo.grid.filter';
// field info for PurchaseOrders table
const fields = 'OrderId,StockItem,Color,State,City,Quantity,UnitPrice,Date,IsChillerStock'.split(',');
document.readyState === 'complete' ? init() : window.onload = init;
//
function init() {
let _firstLoad = true;
let cvSettings = {
virtualization: false,
groupLazyLoading: false,
fields: fields,
groupDescriptions: ['State', 'City'],
loading: () => { toggleSpinner(theGrid, true); },
loaded: (s, e) => {
toggleSpinner(theGrid, false);
if (_firstLoad) {
_firstLoad = false;
// select first group row
setTimeout(() => {
theGrid.select(0, 0);
});
}
}
};
// create the grid to show the data
let theGrid = new FlexGrid('#theGrid', {
isReadOnly: true,
autoGenerateColumns: false,
columns: [
{ binding: "OrderId", header: "Order ID" },
{ binding: "StockItem", header: "Stock Item", width: "*", minWidth: 200 },
{ binding: "Color", header: "Color" },
{ binding: "Quantity", header: "Quantity", dataType: DataType.Number, format: 'n0' },
{ binding: "UnitPrice", header: "Unit Price", dataType: DataType.Number, format: 'n2' },
{ binding: "Date", header: "Date", dataType: DataType.Date },
{ binding: "IsChillerStock", header: "Is Chiller Stock", dataType: DataType }
],
//create RestGroupCollectionView instance
//with settings for default server grouping on first load
itemsSource: new RestGroupCollectionView('purchaseorders', cvSettings)
});
// add the filter with Condition filter as default
new FlexGridFilter(theGrid, {
defaultFilterType: 'Condition'
});
document.getElementById("feature-options").addEventListener('click', (e) => {
let element = e.target;
// to avoid click for label
switch (element && element.id) {
case 'groupServer':
cvSettings.virtualization = false;
cvSettings.groupLazyLoading = false;
break;
case 'virtual':
cvSettings.virtualization = true;
cvSettings.groupLazyLoading = false;
break;
case 'lazyload':
cvSettings.virtualization = false;
cvSettings.groupLazyLoading = true;
break;
}
if (element.tagName == "INPUT") {
_firstLoad = true; //reset _firstLoad before CV change
theGrid.itemsSource = new RestGroupCollectionView('purchaseorders', cvSettings);
}
});
}
//show gif loader while data loading
function toggleSpinner(grid, show) {
let _rect = grid.controlRect;
let elem = grid.hostElement.querySelector('.spinner');
if (!elem)
elem = createElement(`<div class='spinner' style="left:${_rect.left}px;top:${_rect.top}px;width:${_rect.width}px;height:${_rect.height}px;"><img src="resources/Rounded%20blocks.gif"></div>`, grid.hostElement);
elem.style.display = show ? 'block' : 'none';
}
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<title>MESCIUS Wijmo RestCollectionView RestAPI</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">
<div id="feature-options">
<label for="groupServer">
<input id="groupServer" type="radio" name="feature" value="groupOnServer" checked> Server Side Grouping
</label>
<br>
<label for="virtual">
<input id="virtual" type="radio" name="feature" value="virtualGrouping"> Server Side Grouping with
virtualization
</label>
<br>
<label for="lazyload">
<input id="lazyload" type="radio" name="feature" value="lazyLoadGrouping"> Server Side Grouping with
group lazy-loading
</label>
</div>
<div id="theGrid"></div>
</div>
</body>
</html>
body {
margin-bottom: 36pt;
margin-top: 10px;
}
.wj-flexgrid {
height: 400px;
}
.spinner {
position: absolute;
z-index: 10;
opacity: .5;
}
.spinner img {
margin: auto;
position: relative;
top: 40%;
left: 45%;
}
var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {
function adopt(value) { return value instanceof P ? value : new P(function (resolve) { resolve(value); }); }
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) : adopt(result.value).then(fulfilled, rejected); }
step((generator = generator.apply(thisArg, _arguments || [])).next());
});
};
import { DataType, DateTime, httpRequest, copy, changeType, isString, isDate, asNumber, isBoolean, } from '@mescius/wijmo';
import { RestCollectionView } from '@mescius/wijmo.rest';
// limit item count to fetch when virtualization or group lazy-loading is not enabled
const _MAXITEMCOUNT = 10000;
const _TableRecordCount = 231412; // total number of records available in DB for API.
// DataSource API
const _apiUrl = "https://demodata.mescius.io/wwi/api/v1/";
/**
* Class that extends {@link RestCollectionView} to support RestAPI data sources.
*/
export class RestGroupCollectionView extends RestCollectionView {
/**
* Initializes a new instance of the {@link RestGroupCollectionView} class to support ServerSide Grouping.
*
* @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 RestCollectionView}.
*/
constructor(tableName, options) {
super(options);
this._url = _apiUrl;
this._pendingRequest = null;
this._tbl = tableName;
this.groupOnServer = true;
copy(this, options);
}
// parse data
_jsonReviver(key, value) {
// regex to parse date
const _rxDate = /^\d{4}\-\d{2}\-\d{2}T\d{2}\:\d{2}\:\d{2}|\/Date\([\d\-]*?\)/;
if (typeof value === 'string' && _rxDate.test(value)) {
value = value.indexOf('/Date(') == 0 // verbosejson
? new Date(parseInt(value.substr(6)))
: new Date(value);
}
return value;
}
// get request parameters to fetch data based on settings
_getReadParams(item, groupInfo = true, virtualParams = true) {
let gDescs = this.groupDescriptions;
let settings = {};
// #region Only required when ServerAPI limits top to 100 or other value
// load max _MAXITEMCOUNT items when virtualization is not enabled
if (!this.virtualization && this.groupOnServer) {
settings.top = _MAXITEMCOUNT;
}
// all available groups in-case of virtualization
if (this.virtualization && groupInfo && this.groupOnServer) {
settings.top = _MAXITEMCOUNT;
}
// load all available records from table for ServerSide GroupOnly case
if (this.groupOnServer && !this.virtualization && !this.groupLazyLoading && !groupInfo) {
settings.top = _TableRecordCount;
}
// #endRegion
// get filter definition
if (this.filterOnServer && this._filterProvider) {
let filter = this._asODataFilter(this._filterProvider);
if (filter.length > 0) {
settings.filterBy = filter;
}
}
// get groupby defintion
if (this.groupOnServer && gDescs.length > 0) {
// groupby def for groupLazyloading feature
if (this.groupLazyLoading) {
if (item) {
let filters = [];
for (let i = 0; i <= (item.isBottomLevel ? gDescs.length - 1 : item.level); i++) {
let group = gDescs[i].propertyName;
const val = item.items[0][group];
filters.push(`(${group} eq '${val}')`);
}
if (settings.filterBy && settings.filterBy.length > 0) {
filters.splice(0, 0, settings.filterBy);
}
if (filters.length > 0) {
settings.filterBy = filters.join(' and ');
}
if (!item.isBottomLevel)
settings.groupBy = item.groups[0].groupDescription.propertyName;
}
else
settings.groupBy = gDescs[0].propertyName;
}
// groupby definition for other cases
if (!this.groupLazyLoading) {
let _groupBy = [];
let _sortBy = [];
for (let i = 0; i < gDescs.length; i++) {
let _prop = gDescs[i].propertyName;
_groupBy.push(_prop);
_sortBy.push(`${_prop} ASC`);
}
settings.groupBy = _groupBy;
settings.sortBy = _sortBy.join(','); //sort the defined groups
}
}
// donot set groupby if request is not for groupItems
if (!groupInfo) {
delete settings.groupBy;
}
//update sortBy definition
if (this.sortDescriptions.length > 0) {
let _sortBy = [];
//check existing sort
if (settings.sortBy) {
_sortBy = settings.sortBy.split(',');
}
for (let i = 0; i < this.sortDescriptions.length; i++) {
let sort = `${this.sortDescriptions[i].property} ${this.sortDescriptions[i].ascending ? 'ASC' : 'DESC'}`;
var _cSrtIdx = _sortBy.findIndex(x => x.indexOf(this.sortDescriptions[i].property) > -1);
if (_cSrtIdx > -1)
_sortBy[_cSrtIdx] = sort; // update existing sort
else
_sortBy.push(sort); // add new sort
}
settings.sortBy = _sortBy.join(',');
}
//skip and top for fetch data when virtualization is enabled
if (virtualParams && this.virtualization) {
settings.skip = this._start;
settings.top = this._fetchSize();
}
// for paginated data
if (this.pageOnServer && this.pageSize > 0 && !groupInfo) {
settings.skip = this.pageIndex * this.pageSize;
settings.top = (this.pageIndex * this.pageSize) + this.pageSize;
}
// set aggregates property if required (only with groupBy)
if (groupInfo && this.aggregates && this.aggregates.length > 0 && this.groupDescriptions.length > 0) {
settings.aggregates = this.aggregates;
}
// get specified fields only if set
if (this.fields && this.fields.length > 0 && !groupInfo) {
settings.select = this.fields;
}
return settings;
}
// ** overrides
//fetch data
getItems(item) {
// cancel any pending requests
if (this._pendingReq) {
this._pendingReq.abort();
}
return new Promise(resolve => {
let _settings = this._getReadParams(item, false, true); // get data chunks if virtualization enabled
this._pendingReq = httpRequest(this._url + this._tbl, {
requestHeaders: this.requestHeaders,
data: _settings,
success: (xhr) => __awaiter(this, void 0, void 0, function* () {
// parse response
let resp = JSON.parse(xhr.responseText, this._jsonReviver);
let _count = asNumber(resp.totalItemCount);
if (_count != this._totalItemCount)
this._totalItemCount = _count;
resolve(resp.items);
}),
error: xhr => this._raiseError(xhr.responseText, false),
complete: xhr => { this._pendingReq = null; } // no pending requests
});
});
}
//fetch group items
getGroupItems(item) {
// cancel any pending requests
if (this._pendingRequest) {
this._pendingRequest.abort();
}
return new Promise(resolve => {
let _settings = this._getReadParams(item, true, false); // request parameters for grouping
if (this.groupDescriptions.length > 0 && this.groupOnServer) {
httpRequest(this._url + this._tbl, {
requestHeaders: this.requestHeaders,
data: _settings,
success: (xhr) => __awaiter(this, void 0, void 0, function* () {
// parse response
let re = xhr.responseText;
let resp = JSON.parse(xhr.responseText, this._jsonReviver);
this._totalGroupItemCount = asNumber(resp.totalGroupCount);
let _count = asNumber(resp.totalItemCount);
if (_count != this._totalItemCount)
this._totalItemCount = _count;
resolve(resp.groupItems);
}),
error: xhr => this._raiseError(xhr.responseText, false),
complete: xhr => this._pendingRequest = null // no pending requests
});
}
});
}
//#region Filter Implementation
// gets the OData like filter definition that accepts by datasource from a wijmo.grid.filter.FlexGridFilter object.
_asODataFilter(filter) {
let def = '';
for (let c = 0; c < filter.grid.columns.length; c++) {
let col = filter.grid.columns[c], cf = filter.getColumnFilter(col, false);
if (cf && cf.isActive) {
if (def) {
def += ' and ';
}
if (cf.conditionFilter && cf.conditionFilter.isActive) {
def += this._asODataConditionFilter(cf.conditionFilter);
}
else if (cf.valueFilter && cf.valueFilter.isActive) {
def += this._asODataValueFilter(cf.valueFilter);
}
}
}
return def;
}
_asODataValueFilter(vf) {
let col = vf.column, fld = col.binding, map = col.dataMap, def = '';
// build condition with 'eq/or'
for (let key in vf.showValues) {
let value = changeType(key, col.dataType, col.format);
if (map && isString(value)) { // TFS 239356
value = map.getKeyValue(value);
}
if (def)
def += ' or ';
def += this._asEquals(fld, value, col.dataType);
}
// enclose in parenthesis if not empty
if (def.length) {
def = '(' + def + ')';
}
// all done
return def;
}
_asEquals(fld, value, type) {
let def = '', DT = DataType;
if (value === '' || value == null) { // null or empty
def += fld + ' eq null';
if (type == DT.String) { // empty OK for strings only
def += ' or ' + fld + ' eq \'\'';
}
}
else if (type == DT.Date) { // non-null/empty dates (TFS 458080)
def += fld + ' ge ' + this._asODataValue(value, type) + ' and ' +
fld + ' lt ' + this._asODataValue(DateTime.addDays(value, 1), type);
}
else { // other types
def += fld + ' eq ' + this._asODataValue(value, type);
}
return '(' + def + ')';
}
_asODataConditionFilter(cf) {
let c1 = this._asODataCondition(cf, cf.condition1), c2 = this._asODataCondition(cf, cf.condition2);
if (c1 && c2)
return '(' + c1 + (cf.and ? ' and ' : ' or ') + c2 + ')';
if (c1)
return '(' + c1 + ')';
if (c2)
return '(' + c2 + ')';
return null;
}
_asODataCondition(cf, cnd) {
let col = cf.column, fld = col.binding, map = col.dataMap, value = cnd.value;
if (map && isString(value)) { // TFS 440901
value = map.getKeyValue(value);
}
value = this._asODataValue(value, cf.column.dataType);
switch (cnd.operator) {
case 0: // EQ = 0,
return fld + ' eq ' + value;
case 1: // NE = 1,
return fld + ' ne ' + value;
case 2: // GT = 2,
return fld + ' gt ' + value;
case 3: // GE = 3,
return fld + ' ge ' + value;
case 4: // LT = 4,
return fld + ' lt ' + value;
case 5: // LE = 5,
return fld + ' le ' + value;
case 6: // BW = 6,
return `${fld} starts-with ${value}`;
case 7: // EW = 7,
return `${fld} ends-with ${value}`;
case 8: // CT = 8,
return `${fld} contains ${value}`;
case 9: // NC = 9
return `${fld} not-contains ${value}`;
case 10: // NBW = 10
return `${fld} not-starts-with ${value}`;
case 11: // NEW = 11
return `${fld} not-ends-with ${value}`;
}
}
_asODataValue(value, dataType) {
if (isDate(value)) {
value = `'${value.toJSON()}'`;
return value;
}
else if (isString(value)) {
return "'" + value.replace(/'/g, "''") + "'";
}
else if (isBoolean(value)) {
return "'" + value + "'";
}
else if (value != null) {
return value.toString();
}
return dataType == DataType.String ? "''" : null;
}
}
(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',
'@mescius/wijmo': 'npm:@mescius/wijmo/index.js',
'@mescius/wijmo.input': 'npm:@mescius/wijmo.input/index.js',
'@mescius/wijmo.styles': 'npm:@mescius/wijmo.styles',
'@mescius/wijmo.cultures': 'npm:@mescius/wijmo.cultures',
'@mescius/wijmo.chart': 'npm:@mescius/wijmo.chart/index.js',
'@mescius/wijmo.chart.analytics': 'npm:@mescius/wijmo.chart.analytics/index.js',
'@mescius/wijmo.chart.animation': 'npm:@mescius/wijmo.chart.animation/index.js',
'@mescius/wijmo.chart.annotation': 'npm:@mescius/wijmo.chart.annotation/index.js',
'@mescius/wijmo.chart.finance': 'npm:@mescius/wijmo.chart.finance/index.js',
'@mescius/wijmo.chart.finance.analytics': 'npm:@mescius/wijmo.chart.finance.analytics/index.js',
'@mescius/wijmo.chart.hierarchical': 'npm:@mescius/wijmo.chart.hierarchical/index.js',
'@mescius/wijmo.chart.interaction': 'npm:@mescius/wijmo.chart.interaction/index.js',
'@mescius/wijmo.chart.radar': 'npm:@mescius/wijmo.chart.radar/index.js',
'@mescius/wijmo.chart.render': 'npm:@mescius/wijmo.chart.render/index.js',
'@mescius/wijmo.chart.webgl': 'npm:@mescius/wijmo.chart.webgl/index.js',
'@mescius/wijmo.chart.map': 'npm:@mescius/wijmo.chart.map/index.js',
'@mescius/wijmo.gauge': 'npm:@mescius/wijmo.gauge/index.js',
'@mescius/wijmo.grid': 'npm:@mescius/wijmo.grid/index.js',
'@mescius/wijmo.grid.detail': 'npm:@mescius/wijmo.grid.detail/index.js',
'@mescius/wijmo.grid.filter': 'npm:@mescius/wijmo.grid.filter/index.js',
'@mescius/wijmo.grid.search': 'npm:@mescius/wijmo.grid.search/index.js',
'@mescius/wijmo.grid.style': 'npm:@mescius/wijmo.grid.style/index.js',
'@mescius/wijmo.grid.grouppanel': 'npm:@mescius/wijmo.grid.grouppanel/index.js',
'@mescius/wijmo.grid.multirow': 'npm:@mescius/wijmo.grid.multirow/index.js',
'@mescius/wijmo.grid.transposed': 'npm:@mescius/wijmo.grid.transposed/index.js',
'@mescius/wijmo.grid.transposedmultirow': 'npm:@mescius/wijmo.grid.transposedmultirow/index.js',
'@mescius/wijmo.grid.pdf': 'npm:@mescius/wijmo.grid.pdf/index.js',
'@mescius/wijmo.grid.sheet': 'npm:@mescius/wijmo.grid.sheet/index.js',
'@mescius/wijmo.grid.xlsx': 'npm:@mescius/wijmo.grid.xlsx/index.js',
'@mescius/wijmo.grid.selector': 'npm:@mescius/wijmo.grid.selector/index.js',
'@mescius/wijmo.grid.cellmaker': 'npm:@mescius/wijmo.grid.cellmaker/index.js',
'@mescius/wijmo.nav': 'npm:@mescius/wijmo.nav/index.js',
'@mescius/wijmo.odata': 'npm:@mescius/wijmo.odata/index.js',
'@mescius/wijmo.olap': 'npm:@mescius/wijmo.olap/index.js',
'@mescius/wijmo.rest': 'npm:@mescius/wijmo.rest/index.js',
'@mescius/wijmo.pdf': 'npm:@mescius/wijmo.pdf/index.js',
'@mescius/wijmo.pdf.security': 'npm:@mescius/wijmo.pdf.security/index.js',
'@mescius/wijmo.viewer': 'npm:@mescius/wijmo.viewer/index.js',
'@mescius/wijmo.xlsx': 'npm:@mescius/wijmo.xlsx/index.js',
'@mescius/wijmo.undo': 'npm:@mescius/wijmo.undo/index.js',
'@mescius/wijmo.interop.grid': 'npm:@mescius/wijmo.interop.grid/index.js',
'@mescius/wijmo.touch': 'npm:@mescius/wijmo.touch/index.js',
'@mescius/wijmo.cloud': 'npm:@mescius/wijmo.cloud/index.js',
'@mescius/wijmo.barcode': 'npm:@mescius/wijmo.barcode/index.js',
'@mescius/wijmo.barcode.common': 'npm:@mescius/wijmo.barcode.common/index.js',
'@mescius/wijmo.barcode.composite': 'npm:@mescius/wijmo.barcode.composite/index.js',
'@mescius/wijmo.barcode.specialized': 'npm:@mescius/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);
