我有以下数据结构:
const library = [
{
procedureName:'Build Foundations',
id:1,
tasks:[
{
taskName:'dig at least 1m deep', isCompleted:false, procedureId:1
},
{
taskName:'At least 50m wide digging', isCompleted:false, procedureId:1
},
{
taskName:'Buy megazords', isCompleted:false, procedureId:1
}
]
},
{
procedureName:'Building the roof',
id:2,
tasks:[
{
taskName:'Constructed according to the project', isCompleted:false, procedureId:2
},
{
taskName:'Protect wood from humidity', isCompleted:false, procedureId:2
},
{
taskName:'Roof build with the correct angle', isCompleted:false, procedureId:2
}
]
}
]
我希望我的函数onTaskToggle设置为library.tasks.isCompleted
的状态,如下所示:library.tasks.isCompleted: !library.tasks.isCompleted
(我希望能够区分某些项目的点击)
我不知道如何进入这种状态。
我应该以不同方式构建我的数据结构还是我缺少某些内容?
onTaskToggle = (task) => {
const findProcedure = library => library.filter(procedure => procedure.id === task.procedureId);
const findTask = tasks => tasks.filter(singleTask => singleTask.taskName === task.taskName);
const toggledTask = findTask(findProcedure(this.state.library)[0].tasks);
const procedureIndex = this.state.library.indexOf(findProcedure(this.state.library)[0]);
const toggledTaskIndex = this.state.library[procedureIndex].tasks.indexOf(toggledTask[0]);
const insideProcedure = this.state.library[procedureIndex];
const insideTask = this.state.library[procedureIndex].tasks.indexOf(toggledTask[0]);
this.setState({
// Stuck there ...library
})
}
我不确定是否需要它,但这就是我传递数据的方式:
// Main component
class App extends Component {
constructor(props){
super(props);
this.state = {
projects,
library,
}
}
onTaskToggle = (task) => {
const findProcedure = library => library.filter(procedure => procedure.id === task.procedureId);
const findTask = tasks => tasks.filter(singleTask => singleTask.taskName === task.taskName);
const toggledTask = findTask(findProcedure(this.state.library)[0].tasks);
const procedureIndex = this.state.library.indexOf(findProcedure(this.state.library)[0]);
const toggledTaskIndex = this.state.library[procedureIndex].tasks.indexOf(toggledTask[0]);
const insideProcedure = this.state.library[procedureIndex];
const insideTask = this.state.library[procedureIndex].tasks.indexOf(toggledTask[0]);
this.setState({
// ...library
})
}
render() {
const {projects, library} = this.state;
return (
<div>
<Procedures library={library} onTaskToggle={this.onTaskToggle}/>
</div>
);
}
}
export default class Procedures extends Component {
constructor(props) {
super(props);
this.state = {
};
}
render() {
return (
<div>
{
<ProceduresList library={this.props.library} onTaskToggle={this.props.onTaskToggle}/>
}
</div>
);
}
}
//Mapping through procedures
const ProceduresList = props => {
const list = props.library.map(procedure => {
const { id, procedureName, tasks } = procedure;
return(
<div key={id}>
<h4>{procedureName} </h4>
<div><ListingTasks tasks={tasks} onTaskToggle={props.onTaskToggle}/></div>
</div>
)
})
return <div>{list}</div>
}
export default ProceduresList;
// Last Component where all the magic shall happen
const ListingTasks = (props) => {
const list = props.tasks.map(task => { // under this line goes mapping through procedures
const taskName = task.taskName;
return <div key={taskName} onClick={() => props.onTaskToggle(task)}>{taskName}</div>
})
return <div>{list}</div>
}
export default ListingTasks
答案 0 :(得分:0)
onTaskToggle(task) {
const { library } = this.state
const procedure = Object.assign({}, library.find(proc => (proc.id === task.procedureId)))
const procedureIndex = library.findIndex(prec => prec.id === procedure.id)
procedure.tasks = procedure.tasks.map((tsk) => {
if (tsk.taskName === task.taskName) {
tsk.isCompleted = !tsk.isCompleted
}
return tsk;
})
library.splice(procedureIndex, 1, procedure)
this.setState({ library })
}