从观察得到有趣的领域

Question

我已经使用了角度CLI 6和firebase。

我有两个接口类：pps和ppsplan。

export class PPS { constructor (
public Patientid : string,
public traitement: string,
public description: string, 
public effetsind,
public ppsplan,
public Esresp: string,
public medresp: string,
public contactmail:string,
public contacttel: string
) {}
        }

export class Ppsplan { constructor(
public typetraitement:string,
public acte:string,
public duree:number,
public datedebut = new Date(),
public datefin = new Date() 
) {} }

我将ppsplan记录在pps中作为数组。

我想得到：

this.data1 = [
["typetraitement", "enddate", "end date"],
["value1.typetraitement", "value1.datedebut", "value1.datefin"],
["value2.typetraitement", " value2.datedebut "," value2.datefin "]
    ]

当我浏览对象pps时，我想找到ppsplan数组中包含的与funcFeilds相对应的值。

组件

ngOnInit() {

this.ppssToDisplay = this.ppssService.getPPSByPatientid(this.patientid);
 let interestingFields = [ 'typetraitement','datedebut', 'datefin'];
   this.ppssToDisplay.subscribe(ppsList => { 
   this.data1 = [
   interestingFields,
   ...ppsList.map(pps => interestingFields.map(field =>pps[field]))
   ];
   });
   this.config1 = new GanttChartConfig( '',new Date (),new Date ());
   this.elementId1 = 'myGanttChart'; 
   }   

服务

getPPSByPatientid(Patientid: string){
return this.database.list('/ppss', ref => ref.orderByChild("Patientid").equalTo(Patientid)).snapshotChanges().pipe(map(actions => {
  return actions.map(a => {
    const data = a.payload.val();
    const key = a.payload.key;
    return {key, ...data };
  });
})); }

我的订阅无效。     console.log（this.data1）对我说

(2) [Array(3), Array(3)]
0:(3) ["typetraitement", "datedebut", "datefin"]
1:Array(3)
0:undefined
1:undefined
2:undefined

Answer 1

根据您的结构，似乎您正在订阅ppss，但希望获得pps列表。您的订阅不应该返回ppss，然后从pps.ppsplan数组中获得ppsList？

每个PPS对象都将包含一个 object ，该对象将模拟索引为'0'，'1'等的数组。您将需要使用Object.keys来迭代对象的属性。对象以获取各个Ppsplan对象。

Answer 2

我做了这个，但是现在，当我添加一个数据时，我的数据被复制了。

  ngOnInit() {

   this.route.params.forEach((urlParameters) => {
   this.patientid = urlParameters['id'];});
   this.patientToDisplay = this.patientsService.getSinglePatient(this.patientid);
   this.diagnosticsToDisplay = this.diagnosticsService.getDiagnosticByPatientid(this.patientid);

   this.ppssToDisplay = this.ppssService.getPPSByPatientid(this.patientid);
   this.sossToDisplay = this.sossService.getSOSByPatientid(this.patientid);
   this.ppsdocsToDisplay = this.docsService.getPpsDocByPatientid(this.patientid);
   let interestingFields = [ 'typetraitement','datedebut', 'datefin'];


let data1=[interestingFields];
this.ppssToDisplay.subscribe((ppsList: PPS[]) => {
  console.log(ppsList);
  ppsList.map((pps: PPS) => {
    Object.keys(pps.ppsplan).forEach(key => {
      let ppsplan: Ppsplan = pps.ppsplan[key];
      data1.push([
        ...interestingFields.map(field => ppsplan[field])
      ]);

    });

     console.log(data1);
  });
     this.data1 = data1;
});