Aurelia integration with custom elements

Right now, I am encountering the following obstacle while working with aurelia:

Based on my user-model:

export class User{
    @bindable name: string;
    @bindable address: Address;

I have a layout view-model that includes a form:

Parent UserRegistration JS

export class UserRegistration{
    @bindable user: User

    public registerUser(){
        let address = this.user.address;
        //register user and so on ...
    }
}

Parent UserRegistration template

<template>
    <require from="user-address"></require>    

    <form id="user-registration-form" submit.delegate="registerUser()>
        <user-adress user.bind="user"></user>
    </form>
</template>

Additionally, I have a custom-element:

CustomElement userAddress JS

@customElement('userAddress')
@autoinject
export class userAddress{
      @bindable user: User;
}

CustomElement userAddress template:

<template>
    <input type="text" id="street-name" value.bind="user.address.streetname" />
</template>

My goal is to have the information from the custom-element "user-address" transferred to the layout view-model when the submit button is clicked, so that I can utilize it in the "registerUser()" function.

Does anyone have a solution on how to achieve this? Currently, I am only getting an "undefined" value in the parent view-model.

Answer №1

the default binding mode for this

<user-address user.bind="user"></user>

will be one-way..

you need to modify it to

<user-address user.two-way="user"></user>

that should work

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Answer №2

To ensure proper synchronization, you should implement two-way binding. The current setup using user.bind only supports one-way binding, which means changes made in the child component will not automatically reflect in the parent component.

To establish a two-way binding, use the following syntax:

<user-address user.two-way="user"></user>

Any modifications made to the user object within the user-address component will be automatically synced with the user object in the parent viewmodel.

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