import { Component, OnInit } from '@angular/core'; import { ActivatedRoute, Router } from '@angular/router'; import { IonBackButton, IonButtons, IonTitle, IonToolbar } from '@ionic/angular/standalone'; import { IonIcon } from '@ionic/angular/standalone'; import { IonHeader } from '@ionic/angular/standalone'; import { IonContent, IonItem, IonList } from '@ionic/angular/standalone'; import { addIcons } from 'ionicons'; import { arrowBackOutline } from 'ionicons/icons'; import { CloudObject, CloudQuery } from 'src/lib/ncloud'; addIcons({ arrowBackOutline }) @Component({ selector: 'app-knowledge-video', templateUrl: './knowledge-video.component.html', styleUrls: ['./knowledge-video.component.scss'], standalone: true, imports: [ IonContent, IonList, IonItem,IonHeader, IonIcon, IonTitle, IonToolbar, IonButtons, IonBackButton ] }) export class KnowledgeVideoComponent implements OnInit { knowledge: CloudObject | null = null; // 初始化为 null constructor(private route: ActivatedRoute, private loute: Router) {} ngOnInit() { const objectId = this.route.snapshot.paramMap.get('id'); // 获取传递的 ObjectId if (objectId) { // 检查 objectId 是否为 null this.loadKnowledge(objectId); // 加载对应的知识信息 } else { console.error("No ObjectId found in route parameters."); } } async loadKnowledge(objectId: string) { let query = new CloudQuery("videoknowledge"); query.equalTo("title", objectId); // 根据 ObjectId 查询 const knowledge = await query.first(); // 获取单条记录 if (knowledge) { this.knowledge = knowledge; // 将获取的知识信息赋值给 knowledge 属性 } else { console.error("Knowledge not found for ObjectId:", objectId); // 可以考虑在这里处理找不到知识的情况,比如导航到错误页面或者显示提示 } } goToLastPage(){ this.loute.navigate(['/tabs/knowledge-total']) } }