问使用React & PnPJS更新SharePoint spfx中的数组

EN

export default class SigninLocationWebpart extends React.Component<ISigninLocationWebpartProps, {Status: string, Location: string, userName: string, getEmail: string, selectedUser: any}> {

    constructor(props) {
        super(props);
        this.state = {
            Status: 'Online',
            Location: 'New York',
            userName: '',
            getEmail: '',
            selectedUser: {},

        };

        this.handleChangeStatus = this.handleChangeStatus.bind(this); 
        this.handleChangeLocation = this.handleChangeLocation.bind(this);   

    }

    handleChangeStatus(event) {
        const { value } = event.target;
        this.setState({ Status: value });
    }

    handleChangeLocation(event) {
        const { value } = event.target;
        this.setState({ Location: value });
    }


    private _onUpdate(event) { 
        event.preventDefault();

        //This is where I need help on updating list
        let list = pnp.sp.web.lists.getByTitle("MyList")

        //Instead of getting by ID i need to get by that selectUser array I believe
        list.items.getById(1).update({
            Status: this.state.Status, //User changing from Online to Offline
            Location: this.state.Location //User changing from New York to Los Angeles
        }).then(i => {
            console.log(i);
        });

    }       

    public componentDidMount() { 
        if (Environment.type === EnvironmentType.Local) {
        }
        else if (Environment.type === EnvironmentType.SharePoint || Environment.type === EnvironmentType.ClassicSharePoint) {

            //This gets the current users info and sets it to username and email
            sp.web.currentUser.get().then((response : CurrentUser) => {
                //console.log(response);
                this.setState({
                    userName: response["Title"],
                    getEmail: response["Email"],
                })
            })          


            //This gets the list of all all items in the list
            pnp.sp.web.lists.getByTitle("MyList").items.get().then((items: any[]) => {
                console.log(items);

                //Comparing email from sign in user and filtering items array to get that element
                var compareEmail = this.state.getEmail;
                console.log(compareEmail);

                let selectedUser =  _.filter(items, function(item) {
                    return item.Email_x0020_Address.toLowerCase() === compareEmail.toLowerCase();
                });
                console.log(selectedUser);


            });


        }
    }



    public render(): React.ReactElement<ISigninLocationWebpartProps> {
        return (

            <div className={ styles.signinLocationWebpart }>
                <h3>Hello {this.state.userName}</h3>

                <form onSubmit={this._onUpdate}>

                    <label>
                        Check In our Out
                    </label>
                    <select name="Status" value={this.state.Status} onChange={this.handleChangeStatus}> 
                        <option value="Online">Online</option>
                        <option value="Offline">Offline</option>
                        <option value="Busy">Busy</option>
                    </select>

                    <label>
                        Location
                    </label>
                    <select name="Location" value={this.state.Location} onChange={this.handleChangeLocation}> 
                        <option value="New York">New York</option>
                        <option value="Michigan">Michigan</option>
                        <option value="Los Angeles">Los Angeles</option>
                    </select>

                    <input type="submit" value="Submit" />

                </form>

            </div>
        );
    }
}