角度自定义验证器错误(预期的验证器返回Promise或Observable)

时间:2018-10-10 15:07:20

标签: angular typescript validation primeng angular-reactive-forms

我为电话领域写了一个自定义验证器,
错误

  

期望的验证器,以返回Promise或Observable。

为简单起见,我只需要检查电话号码是否少于10个字符

html

<div class="form-group col-xs-3 col-md-3"
                                       [ngClass]="{
                                     'has-error':(ersaForm.get('phone').touched || ersaForm.get('phone').dirty ) &&
                                     !ersaForm.get('phone').valid
                                     }">

                                    <label for="phoneId" class="control-label">Phone</label><br />
                                    <p-inputMask mask="(999) 999-9999" formControlName="phone"  inputStyleClass="form-control" [style]="{'width': '100%','height':'34px'}"  id="phoneId"  placeholder="Phone (required)"></p-inputMask>
                                    <span class="help-block" *ngIf="(ersaForm.get('phone').touched || ersaForm.get('phone').dirty ) &&
                                     ersaForm.get('phone').errors">
                                        <span *ngIf="ersaForm.get('phone').errors.phonePBXCheck">
                                            invalivd Phone Number.
                                        </span>

                                    </span>

                                </div>

TS

function phoneCheck(phone: string): ValidatorFn{
    return (c: AbstractControl): { [key: string]: boolean } | null => {

       var phoneVal = c.value;
            phoneVal = phoneVal.replace('(', '');
            phoneVal = phoneVal.replace(')', '');
            phoneVal = phoneVal.replace('-', '');
            phoneVal = phoneVal.replace('_', '');
            phoneVal = phoneVal.replace(' ', '');
            console.log('custom validation ' + phoneVal);
            if (c.value != undefined && isNaN(c.value) ||  phoneVal.lenght<10) {
                return { 'phonePBXCheck': true };
        };
        return null;
    };
}

     this.ersaForm = this._fb.group({
            phone: ['', Validators.required, phoneCheck('')],
        });

我错过了什么?

1 个答案:

答案 0 :(得分:3)

编辑:您只需要将验证器包装在数组中即可。

 this.ersaForm = this._fb.group({
   phone: ['', [Validators.required, phoneCheck('')]],
 });

此外,作为建议,您可以从验证器中删除这些行:

phoneVal = phoneVal.replace('(', '');
phoneVal = phoneVal.replace(')', '');
phoneVal = phoneVal.replace('-', '');
phoneVal = phoneVal.replace('_', '');
phoneVal = phoneVal.replace(' ', '');

,而是使用unmask的{​​{1}}属性来保持模型值整洁:

p-inputMask

更新:玩了一段时间之后,我注意到 <p-inputMask mask="(999) 999-9999" formControlName="phone" inputStyleClass="form-control" [unmask]="true" [style]="{'width': '100%','height':'34px'}" id="phoneId" placeholder="Phone (required)"> </p-inputMask> 不支持其他验证器,即使您的自定义验证器它也只为您提供p-inputMask属性调用后,控件本身将保持有效。