Databases
StackOverflow2013
Postsdbo
POHow to get a javascript singleton to return data via $.post?
 

Note that there are some explanatory texts on larger screens.

plurals
  1. POHow to get a javascript singleton to return data via $.post?
    primarykey
    data
    text
    <p>I would like to create a method on the singleton <code>dp.DatapodManager</code> so that it loads the data once via $.post, then I can use that data by calling methods on the singleton.</p> <p>The output of the following code is:</p> <pre><code>111 222 test data </code></pre> <p>What do I have to do to get <code>dp.DatapodManager.loadDirectly();</code> to add the contents of the text file to <code>div#content</code>?</p> <p><img src="https://i.stack.imgur.com/wT9cn.png" alt="enter image description here"></p> <pre><code>&lt;html&gt; &lt;head&gt; &lt;title&gt;test load&lt;/title&gt; &lt;script type="text/javascript" src="js/jquery-1.7.2.min.js"&gt;&lt;/script&gt; &lt;script type="text/javascript"&gt; $(document).ready(function() { $('div#content').append('&lt;p&gt;1111&lt;/p&gt;'); $('div#content').append('&lt;p&gt;222&lt;/p&gt;'); $('div#content').append(dp.DatapodManager.getTestData()); dp.DatapodManager.loadDirectly(function(html) { $('div#content').append(html); }); }); var dp = dp || { VERSION : '0.00.05' }; dp.DatapodManager = (function() { return { loadDirectly: function(callback) { dp.qsys.loadDataFromExternalWebsite(function(stringBlock) { var lines = dp.qstr.convertStringBlockToLines(stringBlock); var html = dp.qstr.appendBrToLines(lines); callback(html); //never executes, cannot set breakpoint here in firebug }); callback('&lt;p&gt;this is returned&lt;/p&gt;'); }, getTestData: function() { return 'test data'; } } }()); dp.qsys = { loadDataFromExternalWebsite : function(callback) { url = 'http://localhost/webs/dpjs/data/data.txt'; var json = ''; (function() { var json = null; $.post(url, {}, function(jsonString) { callback(jsonString); }); return json; })(); } }; dp.qstr = { convertStringBlockToLines: function(block, trimLines) { var trimLines = trimLines || true; var lines = block.split(dp.qstr.NEW_LINE()); if(trimLines &amp;&amp; lines.length &gt; 0) { for(x=0; x&lt;lines.length; x++) { lines[x] = lines[x].trim(); } } return lines; }, NEW_LINE: function() { return '\r\n'; }, appendBrToLines: function(lines) { var r = ''; if(lines.length &gt; 0) { for(x=0; x&lt;lines.length; x++) { r += lines[x] + '&lt;br/&gt;'; } } return r; } }; &lt;/script&gt; &lt;/head&gt; &lt;body&gt; &lt;div id="content"&gt;&lt;/div&gt; &lt;/body&gt; &lt;/html&gt; </code></pre>
    singulars
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. PTQuestion
    1. USEdward Tanguay
    1. USEdward Tanguay
    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. COYou can't. Instead, pass a function as that "callback" parameter and have that function do the work as appropriate.
      singulars
      1. POHow to get a javascript singleton to return data via $.post?
      1. USPointy
    2. COOK, I pass a function as a callback parameter and am having the function fill `div#content` (code changed above) but it still gives me the same output.
      singulars
      1. POHow to get a javascript singleton to return data via $.post?
      1. USEdward Tanguay
    3. COCould you open it up in the Chrome dev tools network view? Looks like the response is invalid.
      singulars
      1. POHow to get a javascript singleton to return data via $.post?
      1. USMaximilian Hils
 

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