44 lines
1.1 KiB
TypeScript
44 lines
1.1 KiB
TypeScript
import { Component, Input } from "@angular/core";
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import { AbstractControl, UntypedFormGroup } from "@angular/forms";
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@Component({
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selector: "bit-error-summary",
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template: ` <ng-container *ngIf="errorCount > 0">
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<i class="bwi bwi-error"></i> {{ "fieldsNeedAttention" | i18n : errorString }}
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</ng-container>`,
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host: {
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class: "tw-block tw-text-danger tw-mt-2",
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"aria-live": "assertive",
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},
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})
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export class BitErrorSummary {
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@Input()
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formGroup: UntypedFormGroup;
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get errorCount(): number {
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return this.getErrorCount(this.formGroup);
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}
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get errorString() {
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return this.errorCount.toString();
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}
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private getErrorCount(form: UntypedFormGroup): number {
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return Object.values(form.controls).reduce((acc: number, control: AbstractControl) => {
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if (control instanceof UntypedFormGroup) {
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return acc + this.getErrorCount(control);
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}
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if (control.errors == null) {
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return acc;
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}
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if (!control.dirty && control.untouched) {
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return acc;
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}
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return acc + Object.keys(control.errors).length;
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}, 0);
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}
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}
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