Views Exposed Filters

This feature is considered abandoned with no further development, see the Contextual Filters page for the recommended approach to building filters.

Please note, the Views Exposed Filters in DrupalGap is designed to work in conjunction with Views Render Arrays (it's of course possible to build your own forms and construct your own URL parameters to filter your Views, this feature is meant to simplify that entire process in a dynamic way).

Getting Started

Let's take a look at a simple example that follows along with the Recent Article List example Views JSON.

Add an Exposed Filter to the Views JSON Page Display

In this example we'll add an exposed filter on the Article content type's Tags field (a taxonomy term reference field):

1. Go to: admin/structure/views/view/my_articles/edit (optionally replace my_articles with the machine name of your View)
2. Switch to the JSON display
3. Under Filter Criteria, click the Add button
4. In the Search box, type: Tags
5. Check the box next to Content: Tags (field_tags)
6. Click Apply (all displays)

Please note during # 6, be careful not to accidentally overwrite any other displays. If in doubt, switch the For select list option from All Displays to This page (overide), then click the Apply (this display) button. Then...

1. Specify the Selection type to be a Dropdown menu, and click the Apply and continue button
2. Check the box next to Expose this filter to visitors, to allow them to change it
3. Change the Label to Tags
4. Click Apply (all displays)

Set up the Exposed Form

Under the Advanced settings on our View we can ...

1. Go to the Exposed Form section, and click the Settings link
2. Here we may optionally configure how aspects of the form (see screen shot below)
3. When we're done, just click the Apply (all displays) button

And finally click the Save button on the View.

Checkout the Exposed Filter in Action

Now if we were to navigate to the page in our app that contains the Views Render Array of our article's Views JSON, we'll see the exposed filter ready for use:

Disabling Exposed Filters

In the app, it is sometimes desirable to expose the filter on the Drupal side, so url query string filters can be used. But at the same time undesirable to show DrupalGap's exposed filters in the app. On a Views Render Array object, we can set the exposed_filters property to false to force DrupalGap to not render the exposed filters.