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POHow should backbone.js handle a GET request that returns no results?
 

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  1. POHow should backbone.js handle a GET request that returns no results?
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    <p>I have a number of text input elements that when its values are changed, will trigger a fetch on <code>listingListView</code>'s collection <code>listingCollection</code>, which then updates <code>listingListView</code> with the new data via the function <code>listingListView.refreshList</code> as shown below. I am using PHP/Codeigniter to expose a RESTful API.</p> <p><strong>Problem:</strong> Everything works fine if there are results retrieved from the <code>fetch()</code>. However, when the filters results in no result being returned, how should the server side and the client side handle it? Currently Chrome's javascript console displays a <code>404</code> error and in the Network tab, the XHR request is highlighted in red. All I want to do in the event of zero results returned, is to blank the <code>listingListView</code> and show a message like <em>(No results returned)</em> and not throw any errors in the javascript console. Thanks!</p> <p><strong>PHP Code</strong></p> <pre><code>function listings_get() { // Get filters $price_min = $this-&gt;get('price_min'); $this-&gt;load-&gt;model('app_model'); $results = $this-&gt;app_model-&gt;get_listings($price_min); if($results) $this-&gt;response($results); else $this-&gt;response(NULL); } </code></pre> <p><strong>JS Code</strong></p> <pre><code>window.ListingListView = Backbone.View.extend({ tagName: 'table', initialize: function() { this.model.bind('reset', this.refreshList, this); this.model.bind('add', function(listing) { $(this.el).append(new ListingListItemView({ model: listing }).render().el); }, this); }, render: function() { _.each(this.model.models, function(listing) { $(this.el).append(new ListingListItemView({ model: listing }).render().el); }, this); return this; }, close: function() { $(this.el).unbind(); $(this.el).empty(); }, refreshList: function() { $(this.el).empty(); this.render(); } }); </code></pre>
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    1. COis listingCollection a collection? seems like your binding ListingListView to a model?
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      1. USAnthony Chua
 

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A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

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