如何從另一個組件 n ember.js 在一個組件中調用 function？

Question

單擊編輯按鈕后，我在打印用戶組件中，我正在重定向編輯用戶組件。 我必須將數據從打印用戶發送到編輯用戶。 所以我從打印用戶組件類中調用編輯用戶組件類 function。 但它顯示錯誤

應用程序/組件/打印用戶.hbs

</input5>
    <table class="styled-table">
        <thead>
            <tr><th>User Id</th>
                <th>Firstname</th>
                <th>Lastname</th>
                <th>Mailid</th>
                <th>Delete</th>
            </tr>
        </thead>
        {{#each this.dummyresponse.Users_data as |user|}}
            <tbody>
                <tr>
                    <td>{{user.id}}</td>
                    <td>{{user.firstname}}</td>
                    <td>{{user.lastname}}</td>
                    <td>{{user.mailid}}</td>
                    <LinkTo @route="edit-user" ><button {{on "click" (fn edituser user.id user.firstname user.lastname user.mailid )}} >Edit</button>r</LinkTo></td>
                </tr>
            </tbody>
        {{/each}}
    </table>
{{yield}}

應用程序/組件/打印用戶.js

import Component from '@glimmer/component';
import {action} from "@ember/object";
import {tracked} from "@glimmer/tracking";
import EditUserComponent from './edit-user';
export default class PrintUserComponent extends Component {
    @tracked dummyresponse="";
    @action 
    async printuser (){
        let response=await fetch("/UserManagement/SearchServlet",
        {   method: "POST",
            body: JSON.stringify({
                "type": "",
                "searchtext": ""
            })
        });
        this.dummyresponse=await response.json();
        
    }
    edituser (id,firstname,lastname,mailid){
        alert("print-user.js entered");
        console.log(EditUserComponent.edituser(id,firstname,lastname,mailid));
        alert("print-user.js after method call entered");
    }
}

應用程序/組件/edit-user.hbs

import Component from '@glimmer/component';

export default class EditUserComponent extends Component {

    async edituser (id,firstname,lastname,mailid){
        alert("edit-user.js entered");
        let response=await fetch("/UserManagement/UserManagementServlet",
        {   method: "POST",
            body: JSON.stringify({
                "type": "edit",
                "id": id,
                "firstname":firstname,
                "lastname":lastname,
                "mailid":mailid
            })
        });
    }
}

應用程序/組件/編輯-user.js

import Component from '@glimmer/component';

export default class EditUserComponent extends Component {

    async edituser (id,firstname,lastname,mailid){
        alert("edit-user.js entered");
        let response=await fetch("/UserManagement/UserManagementServlet",
        {   method: "POST",
            body: JSON.stringify({
                "type": "edit",
                "id": id,
                "firstname":firstname,
                "lastname":lastname,
                "mailid":mailid
            })
        });
    }
}

Uncaught TypeError: _editUser.default.edituser is not a function
    at Proxy.edituser (print-user.js:88)
    at Proxy.<anonymous> (runtime.js:7105)

Answer 1

您正在嘗試將EditUserComponent的edituser方法用作 PrintUserComponent 的edituser方法中的PrintUserComponent方法。 簡化后的代碼如下所示：

import EditUserComponent from './edit-user';
console.log(EditUserComponent.edituser(id,firstname,lastname,mailid));

您不是在 class 的實例上而是在 class 本身上調用edituser方法。 也許您正在尋找一個好的舊實用程序 function 代替？

// app/utils/edituser.js

async function edituser (id,firstname,lastname,mailid){
    alert("edit-user.js entered");
    let response=await fetch("/UserManagement/UserManagementServlet",
    {   method: "POST",
        body: JSON.stringify({
            "type": "edit",
            "id": id,
            "firstname":firstname,
            "lastname":lastname,
            "mailid":mailid
        })
    });
}

export default edituser;

該實用程序 function 可以這樣使用：

import edituser from '../utils/edituser';
console.log(edituser(id,firstname,lastname,mailid));

組件只能在模板中調用。 所以他們肯定不是你想要的。