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| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 | 1x 1x 1x 1x 1x 4x 4x 2x 2x 2x | import {
AfterViewInit,
ChangeDetectionStrategy,
ChangeDetectorRef,
Component,
QueryList,
ViewChildren,
} from '@angular/core';
import { FieldArrayType } from '@ngx-formly/core';
import { debounceTime, map } from 'rxjs/operators';
import { ProductContextDirective } from 'ish-core/directives/product-context.directive';
import { ProductContextFacade } from 'ish-core/facades/product-context.facade';
/**
* The Quick Order Repeat Component provides a formly field element, which displays a field array of n elements depending on the according model.
* Each line displays a form field for the sku and for the according quantity.
* The component handles adding and removing of elements to the according formly model.
* The component controls the product contexts for a proper behavior between entered product sku and its quantity field.
*/
@Component({
selector: 'ish-quickorder-repeat-field',
templateUrl: './quickorder-repeat-field.component.html',
changeDetection: ChangeDetectionStrategy.OnPush,
})
export class QuickorderRepeatFieldComponent extends FieldArrayType implements AfterViewInit {
@ViewChildren(ProductContextDirective) contexts: QueryList<{ context: ProductContextFacade }>;
constructor(private cdRef: ChangeDetectorRef) {
super();
}
ngAfterViewInit() {
this.updateContexts();
}
addMultipleRows(rows: number) {
for (let i = 0; i < rows; i++) {
this.add(this.model.length, { sku: '', quantity: 1 });
}
this.updateContexts();
}
/**
* Set the form control field to the according product context and handle its behavior.
*/
updateContexts() {
this.cdRef.detectChanges();
this.contexts.forEach((context: { context: ProductContextFacade }, index) => {
const field = this.field.fieldGroup[index].fieldGroup[0];
const formControl = field.formControl;
context.context.connect('sku', formControl.valueChanges.pipe(debounceTime(500)));
formControl.setAsyncValidators(() =>
context.context.select('product').pipe(
map(product => {
this.cdRef.markForCheck();
return product.failed && formControl.value.trim !== '' ? { validProduct: false } : undefined;
})
)
);
});
}
}
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