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<svg xmlns="http://www.w3.org/2000/svg" aria-hidden="true" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15" class="icon outbound"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg></a></div> <!----></nav> <ul class="sidebar-links"><li><section class="sidebar-group depth-0"><p class="sidebar-heading open"><span>Introduction</span> <!----></p> <ul class="sidebar-links sidebar-group-items"><li><a href="/vuex-asr/" class="sidebar-link">vuex-asr</a></li></ul></section></li><li><section class="sidebar-group depth-0"><p class="sidebar-heading"><span>Step by step guide</span> <!----></p> <ul class="sidebar-links sidebar-group-items"><li><a href="/vuex-asr/step-by-step-guide/prerequisite.html" class="sidebar-link">prerequisite</a></li><li><a href="/vuex-asr/step-by-step-guide/installation.html" class="sidebar-link">installation</a></li><li><a href="/vuex-asr/step-by-step-guide/hello-world-example.html" class="sidebar-link">hello world example</a></li><li><a href="/vuex-asr/step-by-step-guide/getters-example.html" class="sidebar-link">hello world example with a getter</a></li><li><a href="/vuex-asr/step-by-step-guide/hello-world-of-2-way-binding.html" class="sidebar-link">hello world of 2 way binding</a></li><li><a href="/vuex-asr/step-by-step-guide/mutations.html" class="sidebar-link">mutations</a></li><li><a href="/vuex-asr/step-by-step-guide/actions.html" class="sidebar-link">actions</a></li><li><a href="/vuex-asr/step-by-step-guide/aliasing.html" class="sidebar-link">aliasing</a></li><li><a href="/vuex-asr/step-by-step-guide/namespacing.html" class="sidebar-link">namespacing</a></li><li><a href="/vuex-asr/step-by-step-guide/passing-bindings.html" class="sidebar-link">passing a binding to a child component</a></li><li><a href="/vuex-asr/step-by-step-guide/binding-multiple-objects-to-a-component.html" class="sidebar-link">binding multiple objects to a component</a></li><li><a href="/vuex-asr/step-by-step-guide/binding-a-configuration.html" class="sidebar-link">binding a configuration</a></li></ul></section></li><li><section class="sidebar-group depth-0"><p class="sidebar-heading"><span>Helpers</span> <!----></p> <ul class="sidebar-links sidebar-group-items"><li><a href="/vuex-asr/helpers/asr-debug.html" class="sidebar-link">asr-debug</a></li><li><a href="/vuex-asr/helpers/working-with-the-test-suite.html" class="sidebar-link">working with the test-suite</a></li><li><a href="/vuex-asr/helpers/cheat-sheet.html" class="sidebar-link">cheatsheet</a></li></ul></section></li></ul> </aside> <main class="page"> <div class="theme-default-content content__default"><h1 id="binding-multiple-objects-to-a-component"><a href="#binding-multiple-objects-to-a-component" aria-hidden="true" class="header-anchor">#</a> binding multiple objects to a component</h1> <p>In the <a href="https://www.notion.so/hello-world-example-f301739ea9f743959fd6f741d14d3a47" target="_blank" rel="noopener noreferrer">hello world example<svg xmlns="http://www.w3.org/2000/svg" aria-hidden="true" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15" class="icon outbound"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg></a> we saw that we can bind a variable from the store to the component with asr-bind-state-state. In the <a href="https://www.notion.so/hello-world-of-2-way-binding-0745851653ab4ac8b07e42d088961689" target="_blank" rel="noopener noreferrer">hello world of 2 way binding example<svg xmlns="http://www.w3.org/2000/svg" aria-hidden="true" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15" class="icon outbound"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg></a> we saw we can bind a model that can mutate a store object. We also learned we could make use of aliases in the <a href="https://www.notion.so/aliasing-1221d6b07fa1480198d8284b0743c521" target="_blank" rel="noopener noreferrer">aliasing example<svg xmlns="http://www.w3.org/2000/svg" aria-hidden="true" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15" class="icon outbound"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg></a> function to make components reusable. And in the <a href="https://www.notion.so/namespacing-1c0724cae0ab45bf9aa8009df2b25fca" target="_blank" rel="noopener noreferrer">namespacing<svg xmlns="http://www.w3.org/2000/svg" aria-hidden="true" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15" class="icon outbound"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg></a> tutorial we saw how we could create our own code organisation with namespaces.</p> <p>Since VUEXasr is intended to make building large scale applications more easy let's see how we could bind multiple objects to a component.</p> <p>For a quick overview go to the sandbox environment to follow along:</p> <p><a href="https://codesandbox.io/s/manual-binding-multiple-objects-to-a-component-1pitc" target="_blank" rel="noopener noreferrer"><svg xmlns="http://www.w3.org/2000/svg" aria-hidden="true" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15" class="icon outbound"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg></a></p> <h2 id="message-board"><a href="#message-board" aria-hidden="true" class="header-anchor">#</a> message board</h2> <p>As I like to keep the examples as simple as possible let's reuse the previous example but now let's delegate multiple message objects into one component the MessageBoard 🤘</p> <p>First let's make a message board:</p> <pre><code>// src/components/MessageBoard.vue
<template>
<div>
<h1>A message from the root of the store</h1>
<p></p>
<h1>Another message from the root of the store</h1>
<p></p>
<h1>A message from the User Module</h1>
<p></p>
</div>
</template>
</code></pre> <p>notice that this component takes 3 variables:</p> <ul><li>message</li> <li>anotherMessage</li> <li>messageUser</li></ul> <p>Now let's see how we could bind objects to these variables:</p> <pre><code>// src/App.vue
<template>
<div id="app">
<message-board
asr-bind-state="message,
anotherMessage,
USER/message AS messageUser"
></message-board>
<text-input asr-bind-state="message IS v-model"/>
<text-input asr-bind-state="anotherMessage IS v-model"/>
<text-input asr-bind-state="USER/message AS messageUser IS v-model"/>
</div>
</template>
<script>
import MessageBoard from "./components/MessageBoard";
import TextInput from "./components/TextInput";
export default {
name: "App",
components: {
MessageBoard,
TextInput
}
};
</script>
</code></pre> <p>Notice, the comma separated notation which is split into multiple lines for convenience and readability.</p> <h2 id="namespacing-pipe-convention"><a href="#namespacing-pipe-convention" aria-hidden="true" class="header-anchor">#</a> namespacing pipe convention</h2> <p>There is an important convention for the namespace pipe syntax and it is as follows:</p> <p>All variables declared after a pipe must be in the same namespace (module), up until a new namespace is declared. Before a namespace has been declared VUEXasr assumes the variables live in the global (root) namespace, so therefor these MUST be declared first.</p> <pre><code><some-component
asr-bind-state="message,
anotherMessage,
USER/messageUser AS message,
userObject,
PHOTOS/recentPhotos,
likedPhotos"
></some-component>
</code></pre> <p>In the example above these variables live in the global (root) namespace:</p> <ul><li>message</li> <li>anotherMessage</li></ul> <p>These live in the USER namespace:</p> <ul><li>messageUser (aliassed to 'message')</li> <li>userObject</li></ul> <p>These live in the PHOTOS namespace:</p> <ul><li>recentPhotos</li> <li>likedPhotos</li></ul> <p>Well isn't that convenient? There is even another slick way to achieve the same functionality and even more with the asr-bind-state-config property coming up next 💪</p></div> <footer class="page-edit"><!----> <!----></footer> <!----> </main></div><div class="global-ui"></div></div>
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