ngrx-forms/esm2015/src/group/reducer/set-async-error.js

Proper integration of forms in Angular 4 applications using ngrx

import { SetAsyncErrorAction } from '../../actions';
import { computeGroupState } from '../../state';
import { deepEquals } from '../../util';
import { childReducer } from './util';
export function setAsyncErrorReducer(state, action) {
    if (action.type !== SetAsyncErrorAction.TYPE) {
        return state;
    }
    if (action.controlId !== state.id) {
        return childReducer(state, action);
    }
    if (state.isDisabled) {
        return state;
    }
    const name = `$${action.name}`;
    let value = action.value;
    if (deepEquals(state.errors[name], action.value)) {
        value = state.errors[name];
    }
    const errors = Object.assign(Object.assign({}, state.errors), { [name]: value });
    const pendingValidations = state.pendingValidations.filter(v => v !== action.name);
    return computeGroupState(state.id, state.controls, state.value, errors, pendingValidations, state.userDefinedProperties, {
        wasOrShouldBeDirty: state.isDirty,
        wasOrShouldBeEnabled: state.isEnabled,
        wasOrShouldBeTouched: state.isTouched,
        wasOrShouldBeSubmitted: state.isSubmitted,
    });
}
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