我有以下两个 @ ngrx / store redurs:
import {ActionReducer, Action} from '@ngrx/store';
import {UserAccount} from '../shared/models/useraccount.model';
export const SET_CURRENT_USER_ACCOUNT = 'SET_CURRENT_USER_ACCOUNT';
export const UPDATE_CURRENT_USER_ACCOUNT_FIRST_NAME = 'UPDATE_CURRENT_USER_ACCOUNT_FIRST_NAME';
export const currentUserAccountReducer: ActionReducer<UserAccount> = (state: UserAccount, action: Action) => {
console.log('currentUserAccountReducer:', state, action);
switch (action.type) {
case SET_CURRENT_USER_ACCOUNT: {
return action.payload;
}
case UPDATE_CURRENT_USER_ACCOUNT_FIRST_NAME: {
state.firstName = action.payload;
return state;
}
}
};
export const SET_AUTHENTICATED = 'SET_AUTHENTICATED';
export const SET_UNAUTHENTICATED = 'SET_UNAUTHENTICATED';
export const authenticatedReducer: ActionReducer<boolean> = (state: boolean, action: Action) => {
console.log('authenticatedReducer:', state, action);
switch (action.type) {
case SET_AUTHENTICATED: {
return true;
}
case SET_UNAUTHENTICATED: {
return false;
}
}
};
但是,出于某种原因,当我为第一个reducer发出一个调度(即currentUserAccountReducer
)时,它会改变第二个reducer的状态(即authenticatedReducer
)......
以下是导致此问题的调度:
this.store.dispatch({type: SET_CURRENT_USER_ACCOUNT, payload: currentUserAccount});
以下是我在imports
部分初始化商店的方法:
StoreModule.provideStore(
{
currentUserAccount: currentUserAccountReducer,
authenticated: authenticatedReducer
})
有人可以提供建议吗?
修改:问题是authenticated
结束undefined
!!
答案 0 :(得分:4)
您的Reducer中的switch
语句不包含default
个案例。您需要添加返回default
的{{1}}个案例,因为缩减器将被调用所有操作 - 商店无法知道应该为哪个减少器调用特定的操作类型,因此每个调度的操作都会传递给每个reducer。