switchMap操作只在第一次调用时运行？

Question

我有一个角度应用程序,它向Http服务发出请求,并在另一个Http服务上调用switchMap.由于某种原因,switchMap中的请求仅在第一次调用父调用时运行.否则父请求将触发,而switchMap不会触发,这里是代码:

this._receivableService.newTenantDebitCredit(tenantCredit)
            .take(1)
            .switchMap(result =>
                // Refresh the lease receivables before giving result
                this._receivableService.getAll({
                    refresh: true,
                    where: { leaseId: this.leaseId }
                }).take(1).map(() => result)
            )
            .subscribe(
                ...
            )

每次在上面调用newTenantDebitCredit方法时,如何在switch map中运行getAll请求？

编辑:这是调用的函数的全部内容click.当我第一次单击按钮时,给定单元执行两种方法.如果我尝试已经调用该方法的单元(没有刷新),则只执行第一个方法.我意识到很多这可能并不清楚,这是一个相当大的项目.

public submitTenantCredit() {
        this.isLoading = true;
        let tenantCredit: NewTenantDebitCreditData;
        let receivableDefinitions: ReceivableDefinition[] = [];

        // construct receivable defintions for NewTenantDebitData model
        receivableDefinitions = this._constructReceivableDefinitions();

        // construct data we will be POSTing to server.
        tenantCredit = new NewTenantDebitCreditData({
            siteId: this._apiConfig.siteId,
            leaseId: this.leaseId,
            isCredit: true,
            receivables: receivableDefinitions,
            reason: this.actionReason
        });

        // make service call and handle response
        this._receivableService.newTenantDebitCredit(tenantCredit)
            .take(1)
            .switchMap(result =>
                // Refresh the lease receivables before giving result
                this._receivableService.getAll({
                    refresh: true,
                    where: { leaseId: this.leaseId }
                }).take(1).map(() => result)
        )
            .take(1)
            .subscribe(
                (receivables) => {
                    this.closeReasonModal();
                    let refreshLeaseId = this.leaseId;
                    this.leaseId = refreshLeaseId;
                    this.isLoading = false;
                    this.refreshBool = !this.refreshBool;
                    this._debitCreditService.refreshUnitInfo();
                    this._notifications.success(`The tenant credit for ${this.customerName} - Unit ${this.unitNumber} was submitted successfully`);
                },
                (error) => {
                    console.error(error);
                    this.isLoading = false;
                }
            )
    }

如果有帮助newTenantDebitCredit()是HTTP POST请求并且getAll()是GET请求.

Answer 1

不是真正的答案，但我确实解决了我的问题。它几乎肯定对任何人都没有用，但这是 receivableService 中的一个问题，它没有正确地检查boolean：refresh并且在第一次之后从缓存中提取值。