angular-reactive-validation
Version:
Reactive Forms validation shouldn't require the developer to write lots of HTML to show validation messages. This library makes it easy.
24 lines • 5.23 kB
JavaScript
import { UntypedFormControl } from '@angular/forms';
export const getFormControlFromContainer = (name, controlContainer) => {
if (controlContainer) {
const control = controlContainer.control.controls[name];
if (!control) {
throw new Error(`There is no control named '${name}'` +
(getPath(controlContainer).length > 0 ? ` within '${getPath(controlContainer).join('.')}'` : '') + '.');
}
if (!(control instanceof UntypedFormControl)) {
throw new Error(`The control named '${name}' ` +
(getPath(controlContainer).length > 0 ? `within '${getPath(controlContainer).join('.')}' ` : '') +
`is not a FormControl. Maybe you accidentally referenced a FormGroup or FormArray?`);
}
return control;
}
else {
throw new Error(`You can't pass a string to arv-validation-messages's for attribute, when the ` +
`arv-validation-messages element is not a child of an element with a formGroupName or formGroup declaration.`);
}
};
export const isControlContainerVoidOrInitialized = (controlContainer) => !!(!controlContainer || controlContainer.form ||
(controlContainer.formDirective && controlContainer.formDirective.form));
const getPath = (controlContainer) => controlContainer.path || [];
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