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POHow to most easily render both i18n text AND model attributes (using Handlebars template) in Backbone.Marionette View
 

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  1. POHow to most easily render both i18n text AND model attributes (using Handlebars template) in Backbone.Marionette View
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    <p>Rendering templates is a piece of cake when the data displayed within the template is either internationalized text OR model attributes, but when it comes to rendering BOTH within one template, I can't seem to find a clean solution.</p> <p>For reference, I'm utilizing i18n via Require.js's i18n plugin.</p> <p>Let's assume I have a simple template:</p> <pre><code>&lt;h3&gt;{{displayText.load}} #{{id}}&lt;/h3&gt; &lt;h4 id="loading-load-data"&gt;{{displayText.loadingLoadData}}...&lt;/h4&gt; </code></pre> <p>The <code>displayText</code> object represents i18n text, while the <code>id</code> item represents a Backbone Model attribute.</p> <p>Using Backbone's <code>template</code> property on a View, I can do the following in order to render a template with i18n text, but without Model attribute data:</p> <pre><code>return Backbone.Marionette.ItemView.extend({ template: function () { var compiledTemplate = Handlebars.compileClean(template); // localizedText represents the i18n localization object, using the Require.js i18n plugin return compiledTemplate(localizedText); }, // some more View properties and methods }); </code></pre> <p>However, once I want to also display the Model data, this no longer works, primarily due to <code>this</code> being undefined within the template attribute (so I can't reference <code>this.model.attributes</code>), and it seems that I have to fall back to overriding the <code>render()</code> method, passing both the i18n object AND Model attributes to the template, as such:</p> <pre><code>return Backbone.Marionette.ItemView.extend({ template: Handlebars.compileClean(template), render: function() { var templateParams = _.extend({}, this.model.attributes, localizedText), renderedTemplate = this.template(templateParams); this.$el.html(renderedTemplate); this.bindUIElements(); this.delegateEvents(); return this; } }); </code></pre> <p>I'd really love to leave Marionette's default handling of <code>render()</code> in place, and solely use the template property to render both i18n text AND the Model data. Is this possible?</p> <p><strong>BONUS</strong>: Assuming I DO have to override <code>render()</code>, I'm noticing that while doing so, the <code>this.ui</code> attribute, provided on Marionette Views, no longer wraps each item as a jQuery object. This means that:</p> <pre><code>this.ui.loadingNotification.show(); </code></pre> <p>stops functioning, throwing an <code>Uncaught TypeError: Object #loading-load-data has no method 'show'</code>. Why is this, and how can I restore proper <code>this.ui</code> jQuery-wrapping functionality?</p> <p><strong>EDIT</strong>: Solved the <strong>BONUS</strong>; simply have to toss in a <code>this.bindUIElements()</code> call within the <code>render()</code> method to properly bind the elements to the <code>ui</code> hash. See the <code>render()</code> example above.</p>
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