I want to say thank you this one is a very good example and helped me see a error in my logic. Have a question about this project? I was having a similar problem with a tricky and big form. You can find more details about the feature request process in our documentation. Given the following form: When an item changes in the items FormArray: Calling the refundFeedback.updateValueAndValidity(); causes this error. The form that renders such a situation might look a bit like this: Theres nothing surprising in our template above. ), and tests if its validation status matches what we expect. I am not trying to bash. Here is my async validator, Also, I extracted my observable into a local variable, and subscribed to it, to see what it emits. wrote: For my situation, where my component was using OnPush change detection @bloArribas I can't find any source for it being deprecated. this.destroy.next(true); Switch to Light Theme. Why updateValueAndValidity is not updating the value of form Controls in Angular 12. If you think your request could live outside Angular's scope, we'd encourage you to collaborate with the community on publishing it as an open source package. _This action has been performed automatically by a bot._. Sign in You may want to give the user some feedback if he typed a different password the second time, right? Ran into this with an async validator too, with switchMap and debounce and take(1). And. Example Plunkr: Below is the code for reference. . For example, when FormControl value is changed from oldValue to newValu. 2) Import and add the directive to the component.spec file of whatever component in which you want to use the directive. When running, our test uses that fixture to set up the fields values using the fixtures exposed component instance. And according to rxjs docs, you need to return observable from catch(). Reply to this email directly, view it on GitHub Stackblitz code link: https://stackblitz.com/edit/angular-ivy-bqpprh?file=src%2Fapp%2Fapp.component.html,src%2Fapp%2Fapp.component.ts,tsconfig.json. And looking at the above, seems like we have a few ways to trigger the problem, but didn't research yet that far. (canSave$ | async)". I have a formGroup that is async validated, through a request to backend. Instead, we could use Angular testing utilities to do something similar to an integration test, and see how our validator interacts with Angular and (most importantly) with a template. First I added a keyUp event listener on the first password input and linked this to a component method: In the component method I then trigger a change on the repeat password field: passwordChanged(form) { The team released this version on the 5th of August 2021. edit: I was using takeUntil(this.changed$) as a workaround for the inability to use debounceTime(500) within an async validator as recommended by https://github.com/angular/angular/issues/6895. return exists ? Share Follow answered Jul 29, 2019 at 11:31 Dovid Gefen 314 2 15 I tried to implement a solution for this. @vamlumber I will seriously love you long time. The observable gets the latest value of the control. Validation of the repeat password field is triggered when the first password . time a new value comes from the server - not just once. You can accomplish this in many ways, for example, you can call the first() method, or if you are creating your own observable, you can call the complete method on the observer. You are receiving this because you were mentioned. Have a question about this project? Starter project for Angular apps that exports to the Angular CLI. Sorry about that. The async validator successfully processes .map() and returns the appropriate result from cache, but the state of the AbstractControl retains it's PENDING status. Any thoughts on working around this? since my API return error if username not found, in this case form status stucks, because it doesn't enter .map() and doesn't return anything. I've also highlighted key areas of the Angular source code for you whilst explaining the differences. The current alternative is to call updateValueAndValidity() on every descendant. This allows you to do things like delay validation running until the first UI update (by setting validators programmatically after the form loads). Album Review: Coloringbook Candy Island, From stateful to stateless RESTful security using Spring and JWTs Part 1 (intro), WebSocket-based Notification System using Spring, So now it is possible for your code to look at the . https://stackblitz.com/edit/angular-4chvht-rsmkc6. While debugging, I would subscribe in the console to form.statusChanges and also set an interval to log form.status to the console, and I consistently got PENDING to be the last thing emitted by form.statusChanges, and yet the interval logging form.status would log PENDING and then VALID after the observable completed. Can we fork this until we get a failure? That method, by the way, accepts a couple of parameters. We have too many incoming issue to afford spending time doing it. Just type something in the input box, triggering validators and you'll see that the HTTP call fetching the JSON error object works, that the observable .do() method is called, logging the result in the console, but the returned Observable is never resolved by Angular, and that the form status is stuck to 'PENDING'. I updated to Angular v.6.0.0, and rxjs 6.1.0, I'll share some hurdles I found after the update and how I fixed them. Internal observables don't count. This action has been performed automatically by a bot. return this.userService.usernameExists(username, this.user ? The act of removing it causes the cleanup to happen. I am also using updateValueAndValidity() to update the respective values. this.form.statusChanges I am seeing this exact problem also. Angular does not provide built-in type async Validation implmentation, it provides only for sync validation. https://github.com/angular/angular/issues/13200#issuecomment-373784885, @sstriano documentation issues should be reported in https://github.com/angular/angular.io/issues. We also call the control's updateValueAndValidity()method, as we need to recalculate the value and validation status of the control. When you set the detector strategy to onPush, any change made internally to the state of the object programmatically will need a call to a ChangeDetectorRef. If duplicate validator functions are present in the validators array, only the first instance would be added to a form control. So I think there must be a bug in the way forms handle their async validators. Leccho changed the title FormGroup.updateValueAndValidity () add option to affect children FormGroup.updateValueAndValidity () add option to affect descendants Jul 26, 2022 One way of resolving that is to write a custom validator. Make sure to call updateValueAndValidity after adding validators to take effect the validation. src. Next we register our own validator. Please file a new issue if you are encountering a similar or related problem. Drilling down a bit I found something very odd. 'Runs validator' - this updates the whole error object. Reply to this email directly, view it on GitHub Info. @MatthiasKunnen I should have closed it much sooner, like two years ago ? I tried opening the plunker example but it doesn't load for me. FormGroup.updateValueAndValidity({ affectDescendants: true }). FormGroup.updateValueAndValidity ( { affectDescendants: true }) Alternatives considered The current alternative is to call updateValueAndValidity () on every descendant. By clicking Sign up for GitHub, you agree to our terms of service and Below is the code for reference. wrote: @vamlumber https://github.com/vamlumber I will seriously love you long * observables emit events with the latest status and value when the control is updated. Which one, and why? The formGroup has 2 inputs below. So I can get rid of many lines of code. Alrighty. Read more about our automatic conversation locking policy. The layout is like the page has a dropdown selection and multiple input boxes. This site is created by Diego Pappalardo and designed by LD Digital Marketing. http://plnkr.co/edit/nGiwOkCHngVTZKFrJ501?p=preview. https://github.com/angular/angular/issues/13200#issuecomment-373784885, https://github.com/notifications/unsubscribe-auth/AAAQlqnxnKXhECaQp5Jij2RYGpgw_yOfks5te_SfgaJpZM4LCfCx, https://github.com/angular/angular/issues/13200#issuecomment-379831044, https://github.com/notifications/unsubscribe-auth/AAAQluGHSwUQ7q8rJ3PL-kA1SB_gY2Fzks5tm5q0gaJpZM4LCfCx, https://github.com/ReactiveX/rxjs/blob/master/MIGRATION.md, https://stackblitz.com/edit/angular-4chvht-rsmkc6, https://github.com/angular/angular/issues/13200#issuecomment-410528463, https://github.com/notifications/unsubscribe-auth/AAAQlpgjhzViZjNbx6_aR-5G8salLD-nks5uNxIigaJpZM4LCfCx, Cannot enable prod mode after platform setup, Can't use method to generate route paths with compiler-cli, platform-browser/index has no exported member ELEMENT_PROBE_PROVIDERS, Form / Input .valueChanges fires unexpectedly, I haven't fully investigated the issue yet, but creating some. i resolved form pending issue when add .catch() error line, If that's the case, I would request an option to force async Validations on AbstractControls. I have a feeling anything other than this will be the problem where it gets stuck. Update Validation Status Removing or adding the validators does not change the validity status of the form or the control immediately. In the next phase, the community has 60 days to upvote. Do you guys have any idea how could I fix this? We want to keep Angular rich and ergonomic and at the same time be mindful about its scope and learning journey. Now we will add validators to username control. Well, not that tricky as well see in this post. update: @Component({ This has been killing me for months. or mute the thread form.controls.repeatPasswordModel.updateValueAndValidity({ onlySelf: false, emitEvent: true });} Since I am a novice at this there is likely some nicer way of achieving this, but it works! I ended up with a validation function like this: Returning an observable with the control.value prop. We are actually getting in a situation where we see all the children of our form group disabled, but not the form group itself, which shouldn't be possible. This is a great thread of info! .switchMap(() => { Since I am a novice at this there is likely some nicer way of achieving this, but it works! templateUrl: './create-form.component.html', @Input() form: FormGroup; I feel fairly certain that take(1) should cause the complete to get called yet the form and the formcontrol seem to remain stuck in Pending. Looking at the features of Angular 12 earlier this year we can say that v12.2 is a smaller version with less but significant new releases. When a user changes the first password after typing in the repeat password, the validator is not triggered again. By clicking Sign up for GitHub, you agree to our terms of service and I really struggled with this and subscribing to valueChanges wasn't working with vamlumbers example. You are receiving this because you were mentioned. issue created since 2 Dec 2016 and no fix.