我有一個小問題,即我不知道如何從reducerRegister.js中的reducerForm.js reducer訪問isLoading值,我嘗試了所有我能想到的,所以我現在被卡住了。只是想提一下,我已經使用了combineReducers函數,並且我在提交後使用isLoading值來禁用按鈕,所以它的初始狀態是false,點擊提交後它會得到真值,並且在表單成功發佈後它會得到錯誤的值再次。下面是這個問題的所有相關代碼:從另一個reducer中的一個reducer訪問reducer狀態的一部分
/* * actionRegister.js/
let _registerUserFailure = (payload) => {
return {
type: types.SAVE_USER_FAILURE,
payload
};
};
let _registerUserSuccess = (payload) => {
return {
type: types.SAVE_USER_SUCCESS,
payload,
is_Active: 0,
isLoading:true
};
};
let _hideNotification = (payload) => {
return {
type: types.HIDE_NOTIFICATION,
payload: ''
};
};
//asynchronous helpers
export function registerUser({ //use redux-thunk for asynchronous dispatch
timezone,
password,
passwordConfirmation,
email,
name
}) {
return dispatch => {
axios.all([axios.post('/auth/signup', {
timezone,
password,
passwordConfirmation,
email,
name,
is_Active: 0
})
// axios.post('/send', {email})
])
.then(axios.spread(res => {
dispatch(_registerUserSuccess(res.data.message));
dispatch(formReset());
setTimeout(() => {
dispatch(_hideNotification(res.data.message));
}, 10000);
}))
.catch(res => {
dispatch(_registerUserFailure(res.data.message)); //BE validation and passport error message
setTimeout(() => {
dispatch(_hideNotification(res.data.message));
}, 10000);
});
};
}
/* * actionForm.js/
export function formUpdate(name, value) {
return {
type: types.FORM_UPDATE_VALUE,
name, //shorthand from name:name introduced in ES2016
value
};
}
export function formReset() {
return {
type: types.FORM_RESET
};
}
/* * reducerRegister.js/
const INITIAL_STATE = {
error:{},
is_Active:false,
isLoading:false
};
const reducerSignup = (state = INITIAL_STATE , action) => {
switch(action.type) {
case types.SAVE_USER_SUCCESS:
return { ...state, is_Active:false, isLoading: true, error: { register: action.payload }};
case types.SAVE_USER_FAILURE:
return { ...state, error: { register: action.payload }};
case types.HIDE_NOTIFICATION:
return { ...state , error:{} };
}
return state;
};
export default reducerSignup;
/* * reducerForm.js/
const INITIAL_STATE = {
values: {}
};
const reducerUpdate = (state = INITIAL_STATE, action) => {
switch (action.type) {
case types.FORM_UPDATE_VALUE:
return Object.assign({}, state, {
values: Object.assign({}, state.values, {
[action.name]: action.value,
})
});
case types.FORM_RESET:
return INITIAL_STATE;
//here I need isLoading value from reducerRegister.js
}
return state;
};
export default reducerUpdate;
/* reducerCombined.js */
import { combineReducers } from 'redux';
import reducerRegister from './reducerRegister';
import reducerLogin from './reducerLogin';
import reducerForm from './reducerForm';
const rootReducer = combineReducers({
signup:reducerRegister,
signin: reducerLogin,
form: reducerForm
});
export default rootReducer;
/*這是從組件,其中i使用isLoading值*/
let isLoading = this.props.isLoading;
<FormGroup>
<Col smOffset={4} sm={8}>
<Button type="submit" disabled={isLoading}
onClick={!isLoading ? isLoading : null}
>
{ isLoading ? 'Creating...' : 'Create New Account'}
</Button>
</Col>
</FormGroup>
/*和映射狀態道具從同一部件*/
function mapStateToProps(state) {
return {
errorMessage: state.signup.error,
isLoading: state.signup.isLoading,
values: state.form.values
};
}
謝謝,@markerikson,錯過文檔的一部分,會讀,但最後的方法似乎是最好的我的getState() –