我们有3个减速器，其中1个是过滤减速器，其余2个用于api调用目的。我想知道的事情：我们可以在一个应用程序中使用多个异步缩减器。这是我的代码，我得到运行时错误
商品
import {createStore, combineReducers, applyMiddleware} from 'redux';
import thunk from 'redux-thunk'
import {composeWithDevTools} from 'redux-devtools-extension';
import reportsReducer from '../reducers/reportreducer'
import filterReducer from '../reducers/filterreducer'
import testReducer from '../reducers/testreducer'
export default () => {
const store = createStore(
combineReducers({
reports: reportsReducer,
tests:testReducer,
filters: filterReducer,
}),
composeWithDevTools(
applyMiddleware(thunk)
)
)
return store;
}
import thunk from 'redux-thunk'
export const addtest=(tests)=>{
type: 'ADD_TEST_UNIT',
tests
}
export const saveTests = (testData = {}) => {
return dispatch =>{
const {
t_id=0,
test_name= '',
print_name= '',
department= '',
test_individual= 0,
std_rate= '',
prt_tst_np= 0,
discon_prcls=0,
unit= '',
res_lst= 0,
num_rng= 0,
wrd_tempt= 0,
tst_mthd= '',
interpret= '',
for_bsd_tst= 0,
} = testData
const tests = {t_id, test_name, print_name, department, test_individual, std_rate, prt_tst_np, discon_prcls, unit, res_lst, num_rng, wrd_tempt, tst_mthd, interpret, for_bsd_tst}
return fetch('http://localhost/aruna/addtestunits.php',{
method:'POST',
body: JSON.stringify(testData)
}).then(testData => dispatch(addtest(testData.tests))
)}
}
减速
const testsDefaultstate = []
export default (state=testsDefaultstate, action ) => {
switch (action.type){
case 'ADD_TEST_UNIT':
return [
...state,
action.testunit
]
default:
return state
}
}
FORM
import React from 'react';
import {connect} from 'react-redux';
import {saveTests} from '../../actions/testaction';
class TestUnitForm extends React.Component {
state={
// t_id=null,
test_name: '',
print_name: '',
department: '',
test_individual: 0,
std_rate: '',
prt_tst_np: 0,
discon_prclst: 0,
unit: '',
res_lst: 0,
num_rng: 0,
wrd_tempt: 0,
tst_mthd: '',
interpret: '',
for_bsd_tst: 0,
loading: 0,
done: false
}
handlerChange=(e) => {
this.setState({[e.target.name]: e.target.value})
}
onSubmit=(e)=>{
e.preventDefault();
const {test_name,print_name, department, test_individual,std_rate, prt_tst_np, discon_prclst, unit,res_lst, num_rng, wrd_tempt, tst_mthd,interpret, for_bsd_tst}=this.state;
// this.setState({loading:true});
this.props.saveTests({test_name,print_name, department, test_individual,std_rate, prt_tst_np, discon_prclst, unit,res_lst, num_rng, wrd_tempt, tst_mthd,interpret, for_bsd_tst}).then(() => {this.setState({done:true})})
}
render() {
const form =(
<form onSubmit={this.onSubmit}>
<input type="text" value={this.state.test_name} name="test_name" placeholder="Test Name" onChange={this.handlerChange}/>
<input type="text" value={this.state.print_name} name="print_name" placeholder="Print Name" onChange={this.handlerChange}/>
<input type="text" value={this.state.department} name="department" placeholder="Department" onChange={this.handlerChange} />
<label for="test_individual">Test Can Be Requested Individually </label>
<input type="checkbox" value={this.state.test_individual} name="test_individual" onChange={this.handlerChange} />
<input type="text" value={this.state.std_rate} name="std_rate" placeholder="Standard Rate" onChange={this.handlerChange}/>
<label for="prt_tst_np"> Print Test on New Page </label>
<input type="checkbox" value={this.state.prt_tst_np} name="prt_tst_np" onChange={this.handlerChange} />
<label for="discon_prclst"> Discontinue from Price List</label>
<input type="checkbox" value={this.state.discon_prclst} name="discon_prclst" onChange={this.handlerChange} />
<input type="text" value={this.state.unit} name="unit" placeholder="Unit" onChange={this.handlerChange} />
<label for="res_lst"> Result List </label>
<input type="checkbox" value={this.state.res_lst} name="res_lst" onChange={this.handlerChange}/>
<label for="num_rng"> Numeric Range</label>
<input type="checkbox" value={this.state.num_rng} name="num_rng" onChange={this.handlerChange} />
<label for="wrd_tempt">Work Template</label>
<input type="checkbox" value={this.state.wrd_tempt} name="wrd_tempt" onChange={this.handlerChange}/>
<input type="text" value={this.state.tst_mthd} name="tst_mthd" placeholder="Test Method" onChange={this.handlerChange} />
<input type="text" value={this.state.interpret} name="interpret" placeholder="Interpretation" onChange={this.handlerChange} />
<label for="for_bsd_tst"> Formula Based Test </label>
<input type="checkbox" value={this.state.for_bsd_tst} name="for_bsd_tst" onChange={this.handlerChange} />
<input type="submit" value="Save Report" />
</form>
)
return (
<div>
{form}
</div>
)
}
}
export default connect(null,{saveTests})(TestUnitForm);
如何删除此错误。在一个减速器中，它正在工作，而在另一个减速器中，它显示出这个错误
答案 0 :(得分：1)
在你的行动中，你没有返回任何东西：
def SearchRecords(self):
search = raw_input("Insert value to be searched in the DB:")
db = MySQLdb.connect("localhost", "root", "studio", "PManDB")
cursor = db.cursor()
sql = """SELECT * FROM accounts WHERE website LIKE %s"""
data = ('%' + search + '%',)
cursor.execute(sql, data)
result = cursor.fetchall()
print result
这只是一个函数的主体，你需要将它包装成括号：
export const addtest = (tests) => {
type: 'ADD_TEST_UNIT',
tests
}
你的问题应该修复;）
如果不清楚我可以告诉我，我可以进一步解释。