import { Component, Input, Output, OnInit, OnChanges } from '@angular/core';
import { ViewComponent } from '../view/view.component';
import { HitoService } from '../../services/hito.service';
@Component({
selector: 'app-time-line',
templateUrl: './time-line.component.html',
styleUrls: ['./time-line.component.css'],
providers: [HitoService]
})
export class TimeLineComponent implements OnChanges, OnInit {
@Input() calbuscador: String;
@Input() idcalbuscador: String;
public pepe: String
nom_cal1: any;
hito1: any = {};
hito2: any = {};
constructor(public _hitoService: HitoService) {
}
ngOnInit() {
}
///we retrieve the value sento to this component in OnChanges
ngOnChanges() {
this.nom_cal1 = this.calbuscador;
this.drawtimeline(this.nom_cal1, this._hitoService, this.idcalbuscador);
}
result: any[] = [];
drawtimeline(nom_cal, _hitoService, idcalbuscador) {
var container = document.getElementById('timeLine');
//alert("id cal sele es :" + idcalbuscador);
var k = 0;
var j = 0;
var master = new vis.DataSet();
var items = new vis.DataSet();
this.result.push({ "_id": this.idcalbuscador,
"title": nom_cal });
this.result.forEach(function (ev) {
master.add([{ id: ev._id, content: ev.title, cal_id: ev._id }]);
var g = ev._id;
for (var i= 0; i<this.result.length; i++){
console.log("hola");
console.log(this.result[i]._id);
this._hitoService.getHitos(this.result[i]._id)
.subscribe(hito2 => {
this.hito2 = hito2
var items: any;
items = hito2;
items.forEach(function (item) {
items.add([{ id: k, group: g, start: item.start_datetime, end: item.end_datetime, style: itemStyle(item.design), className: "pepe" }]);
k++;
});
j++;
});
}
});
我试图使用vis.js实施时间表,我检索名称和时间表的ID想在这个类组件,然后在ngOnChanges我调用该函数画出时间表传递给它的时间线的名称,它的ID和其他的服务来获得这个特定的时间线的观测项目。我将存储时间表(结果)我要查看,然后可观察到的我订阅,添加时间表的项目的数组。第一次的foreach()将结果数组中删除第一个元素,得到物品,此结果和第二的foreach(的观测)将通过观测项目和打印的项目,然后重新开始,并移动到下一个。但我在浏览器控制台中得到的是:TypeError:这是未定义的。也许不是使在forach()可以使用服务的foreach()内
您需要创建一个箭头函数'()=> {}'来绑定'this'。 – jonrsharpe