this.uiBlockService.showUiBlock();

    this.adminPeriodeGajiService.search({ salaryDate : this.inputForm.value.tglMutasi })
      .pipe(
        switchMap((periods: GaResponse<AdminPeriodeGaji[]>) => {
          this.penggajianForm.patchValue({
            bulanBerlaku : periods.data[0].yearMonth
          });
          return this.employeeSalaryService.search({ employeeId : this.karyawan.id, beginDate: this.inputForm.value.tglMutasi });
        }),
        takeUntil(this.ngUnsubscribe)
      )
      .subscribe(
        (result) => {
          this.uiBlockService.hideUiBlock();
          this.penggajianForm.patchValue({
            oldGaji: result.data[0].basicSalary,
            gaji : result.data[0].basicSalary
          });
        },
        (error) => {
          this.uiBlockService.hideUiBlock();
          this.contentAlertService.error(error.errors);
        },
        () => { this.uiBlockService.hideUiBlock(); }
      );