I have created a table component that generates a table based on a configuration I pass in. I'm aware there are likely better ways of writing a re-usable component, but for now this is what I have.
Basically the component takes a config with a columns and datasource object then it maps the columns to the properties in the datasource.
My problem is that at some point I make changes to one of the table's datasources, I first empty the array for instance...
this.members.datasource = []
then I push the new data onto the datasource like so...
for (let member in members) {
this.members.datasource.push(members[member]);
}
My problem is that when I do this the table does not update with the new data in the datasource.
I have utilized the ngDoCheck function in my component and it does indeed trigger when I change the datasource, but nothing else happens.
Here is all relative code and markup...
ip-datatable component
import { Component, Input, Output, OnInit, EventEmitter, ElementRef, DoCheck } from "@angular/core";
import { ITable } from "./interfaces/index";
@Component({
selector: "ip-datatable",
templateUrl: "./ip-dataTable.component.html"
})
export class IpDataTableComponent implements OnInit, DoCheck {
@Input()
public config: ITable;
public tableData: any;
@Output()
private onRowClick = new EventEmitter();
constructor(private elem: ElementRef) {
}
public ngOnInit() {
// TODO: Decide whether or not to make this more dynamic (ie: excepts functions returning things other than a promise)
if (typeof (this.config.datasource) == "function") {
this.config.datasource()
.then((data: any) => {
this.tableData = data;
});
} else {
this.tableData = this.config.datasource;
}
}
public rowClicked(e:Event) {
this.onRowClick.emit(e);
}
public ngDoCheck() {
}
}
The ip-datatable component's template html
<table class="table table-bordered table-hover">
<thead>
<tr>
<td *ngFor="let column of config.columns">{{column.header}}</td>
</tr>
</thead>
<tbody>
<tr
*ngFor="let item of tableData"
[class]="(config.rowConfig !== undefined) ? config.rowConfig.classes : ''"
(click)="rowClicked($event)" [id]="(item.id !== undefined) ? item.id : ''">
<td *ngFor="let column of config.columns">{{item[column.mapKey]}}</td>
</tr>
</tbody>
</table>
Component that utilizes ip-datatable
import { Component, OnInit, AfterViewInit, ApplicationRef } from "@angular/core";
import { ActivatedRoute } from "@angular/router";
import { EngagementService } from "../../services/engagement.service";
import { EngagementEditModel } from "../../models/index";
import { ITable } from "../../core/components/ip-datatable/interfaces/index";
@Component({
templateUrl: "engagement-context.component.html"
})
export class EngagementContextComponent {
public id: string;
public engagementDetails: EngagementEditModel;
// Temporarily hardcode groups as there is only two available.
public groups: ITable = {
columns: [
{
header: "Name",
mapKey: "name"
}
],
rowConfig: {
classes: "clickable override"
},
datasource: [
{
name: "Owners"
},
{
name: "Users"
}]
};
public members: ITable = {
columns: [
{
header: "Name",
mapKey: "name"
}
],
datasource: []
}
constructor(private engagementService: EngagementService, private route: ActivatedRoute, private appRef: ApplicationRef) {
this.id = route.snapshot.params["id"];
this.engagementService.getEngagementEditDetailsById(parseInt(this.id))
.then((data: EngagementEditModel) => {
this.engagementDetails = data;
console.log(this.engagementDetails); // tslint:disable-line
});
}
public groupClicked(e: Event) {
// Get the element of the event
let elem: IEventElement = e.currentTarget;
// Get the name of the selected node
let groupName = elem.textContent.trim().toLowerCase();
let members = (<any>this.engagementDetails)[groupName];
interface IEventElement extends EventTarget {
textContent?: string;
}
this.members.datasource = [];
for (let member in members) {
this.members.datasource.push(members[member]);
}
}
}
HTML usage of the ip-datatable
<div class="row">
<div class="col-md-12">
<section class="section">
<div class="section-body">
<h4 class="section-title">Groups</h4>
<ip-datatable
[config]="groups"
(onRowClick)="groupClicked($event)">
</ip-datatable>
</div>
</section>
</div>
<div class="col-md-12">
<section class="section">
<div class="section-body">
<h4 class="section-title">Members</h4>
<ip-datatable
[config]="members"
></ip-datatable>
</div>
</section>
</div>
</div>
