Databases
StackOverflow2013
Postsdbo
PODojo Beginner: Hows do I make a custom Widget using _DomTemplated without getting a render error?
 

Note that there are some explanatory texts on larger screens.

plurals
  1. PODojo Beginner: Hows do I make a custom Widget using _DomTemplated without getting a render error?
    primarykey
    data
    text
    <p>I am writing a custom Dojo Widget that uses the dojox.dtl._DomTemplated for DTL (Django Template Language) using the example <a href="http://view-source%3ahttp://archive.dojotoolkit.org/nightly/dojotoolkit/dojox/dtl/demos/demo_DomTemplated_amd.html" rel="nofollow">found here</a>. Basically, I am looking to have a widget that will either display or not display a set of buttons/links depending on the values set on the Widget. However, when I try to run my custom component, I get some strange pukage:</p> <blockquote> <p>You cannot use the Render object without specifying where you want to render it</p> </blockquote> <p>Which is occurring on line 3648 of <a href="http://ajax.googleapis.com/ajax/libs/dojo/1.7.1/dojo/dojo.js.uncompressed.js" rel="nofollow">dojo.js.uncompressed.js</a>.</p> <p>My Widget is pretty simple, and I have tried using an external template file and defining the templateString directly in the Widget JS file.</p> <p>Here is the widget code, as I currently have it: // img.ArtThumbnailWidget dojo.provide("img.ArtThumbnailWidget");</p> <pre><code>// Create the widget require([ "dojo/_base/declare", "dijit/_WidgetBase", "dojox/dtl/_DomTemplated", "dojo/text!img/ArtThumbnailWidget/templates/ArtThumbnailWidget.html", "dojo/parser", "dojox/dtl/tag/logic" ], function(declare, _WidgetBase, _DomTemplated, template) { dojo.declare("img.ArtThumbnailWidget",[dijit._WidgetBase, _DomTemplated], { /* Our properties will go here */ // Art JSON object, default is null art: null, // Viewer ID (the username of the person looking at this image), which will default to null viewerId: null, // maxSize is how large of an image to return. The back-end will resize the thumbnail accordingly maxSize: 100, // Our template - important! templateString: template, // A class to be applied to the root node in our template baseClass: "artThumbnailWidget", _dijitTemplateCompat: true, widgetsInTemplate: true, /* This is called once the DOM structure is ready, but before anything is shown */ postCreate: function() { // Get a DOM node reference for the root of our widget var domNode = this.domNode; // Run any parent postCreate processes - can be done at any point this.inherited(arguments); }, /* This is called anytime the "art" attribute is set. Consider is a "setter" method */ _setArtAttr: function(av) { if (av != null) { // Save it on our widget instance - note that // we're using _set, to support anyone using // our widget's Watch functionality, to watch values change this._set("art", av); // Using our avatarNode attach point, set its src value this.thumbnailNode.src = av.url+"?maxSize="+this.maxSize; this.thumbnailNode.alt = av.title; } else { // We could have a default here...would be an error, since we // shouldn't be calling this without an art object } }, _setMaxSizeAttr: function(ms) { // Save it on our widget instance - note that // we're using _set, to support anyone using // our widget's Watch functionality, to watch values change this._set("maxSize", ms); this.thumbnailNode.width = ms; this.thumbnailNode.height = ms; }, }); // End of the widget }); </code></pre> <p>And here is the Template:</p> <pre><code>&lt;div dojoAttachPoint="containerNode"&gt; &lt;img class="${baseClass}Thumbnail" src="" alt="" data-dojo-attach-point="thumbnailNode" /&gt; &lt;% if viewerId == art|owner|name %&gt; &lt;p&gt;test&lt;/p&gt; &lt;% endif %&gt; &lt;/div&gt; </code></pre> <p>In addition to trying to define the template directly in the Widget JS code, I have also tried simplifying the template by removing all the DTL tags in it. The Widget works fine if I use the standard _TemplateMixin instead of dojox.dtl._DomTemplated, except that the DTL doesn't get rendered, its just displayed as text. I have also tried using the dojox.dtl._Templated, but I get the same error.</p>
    singulars
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. PTQuestion
    1. This table or related slice is empty.
    1. USCodeChimp
    plurals
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. COIs there a specific reason you want to use DTL? If not, I recommend using the standard mechanism of Dojo widgets - which is to use a HTML fragment in a template HTML and use dijit._TemplatedMixin to help with the DOM creation for the widget. See http://dojotoolkit.org/reference-guide/1.7/quickstart/writingWidgets.html for a good description on implementing custom widgets
      singulars
      1. PODojo Beginner: Hows do I make a custom Widget using _DomTemplated without getting a render error?
      1. USVijay Agrawal
    2. COWell, I was looking for a solution to allow me to switch the content of the template based on values set on the Widget. I am not married to DTL at all. Ultimately, what I am trying to accomplish is to have a set of buttons that appear in the Widget under certain circumstances. The only other way I know to do this is to add the dynamic content to the dom at the postCreate:.
      singulars
      1. PODojo Beginner: Hows do I make a custom Widget using _DomTemplated without getting a render error?
      1. USCodeChimp
    3. COOh, and I should mention that I have a Widget working using TemplatedMixin. Again, the "switch" to _DomTemplated was to accommodate a need to have conditional statements control how the DOM is built in the template.
      singulars
      1. PODojo Beginner: Hows do I make a custom Widget using _DomTemplated without getting a render error?
      1. USCodeChimp
 

Querying!

 
Guidance
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.

SQuiL has stopped working due to an internal error.

If you are curious you may find further information in the browser console, which is accessible through the devtools (F12).

Reload