wiSysInfo Component

The main purpose of this component is to retrieve system meta information for supporting either the development process of qWidgets or to use them in your visualizations.

The following system meta information can be retrieved with wiSysInfo:

• A collection of all apps
• A collection of sheets and objects (meta-data) in the current app
• A collection of all visualizations in the current app
• A collection of all dimensions/measures in the current app
• A collection of all Extensions available
• A collection of all Bookmarks
• A collection of all Current Selections
• A collection of all Master Objects

Basic Example - Default Visualization

If you use wiSysInfo without any of the below described options, you will get the following:

Html:

<wi-sys-info />

Result:

Basic Example - Custom Visualization

If you for example just want to retrieve the collection of Bookmarks and Extensions and use them in a simple visualization this could look as follows:

Html:

<wi-sys-info content="bookmarks,extensions">
    <b>Bookmarks:</b>
    <ul class="myListStyle">
        <li ng-repeat="bookmark in bookmarks">
            {{bookmark.qData.title}}
        </li>
    </ul>

    <br/>
    <b>Extensions:</b>
    <ul class="myListStyle">
        <li ng-repeat="extension in extensions">
            {{extension}}
        </li>
    </ul>
</wi-sys-info>

CSS:

ul.myListStyle {
    list-style-type:square;
    list-style-position:inside;
}

Result:

Use Cases

Some use-cases:

• Display a list of sheets with their Names & IDs
  • Use this list to create a custom navigation
• Display a list of visualizations in the library (with their internal IDs)

Properties

Name	Type	Description
content	Strings	Comma separated list of desired objects. Default: empty, will return the following object types: 'apps', 'sheets', 'fields', 'measures', 'dimensions', 'extensions', 'bookmarks', 'currentselections', masterobjects Possible Values: 'apps', 'sheets', 'fields', 'measures', 'dimensions', 'extensions', 'bookmarks', 'currentselections', masterobjects, visualizations

Note: visualizations is the slowest content type because detailed information for all objects in the app will be retrieved from the QIX Engine.

How to Retrieve the Object's Properties

You are maybe asking yourself how to know all the possible properties in an object (and depending on the object the properties are different).

The answer is quite easy:

• Just use the qWidget-Editor and the qWidget-LivePreview to list all possible properties

Let's say you want to want to display the Title and Description of a bookmark:

First start with the rudimentary code:

<wi-sys-info content="bookmarks">

</wi-sys-info>

Now let's display all available properties of the bookmark-collection:

<wi-sys-info content="bookmarks">
    <div ng-repeat="bookmark in bookmarks">
        {{bookmark}}
        <hr/>
    </div>
</wi-sys-info>

You will see the following in the qWidget-LivePreview:

Copying the Object Id

All IDs in the default visualization of wiSysInfo can be selected and copied. Note: Use Ctrl+Shift + the context menu to get the normal browser context menu (works both in Qlik Sense Desktop and if are working on a Qlik Sense Server).

Examples

Retrieving all Visualizations + Filter

Html:

Retrieve all objects with containing the string "Customer".

<wi-sys-info content="visualizations">
    <div ng-repeat="vis in visualizations | filter: 'Customer'">
        <pre ng-bind="vis | json" />
        <hr/>
    </div>
</wi-sys-info>

Result:

So by changing our Html-code as follows:

<h2>My Bookmarks:</h2>
<br/>
<wi-sys-info content="bookmarks">
    <div ng-repeat="bookmark in bookmarks">
        <b>Title:</b> {{bookmark.qData.title}}<br/>
        </b>Description:</b> {{bookmark.qData.description}}<br/>
        <hr/>
    </div>
</wi-sys-info>

We will now retrieve the desired result: