Include $object from query in list show/hide-if

General Q&A
1

A list-item of a dynamic list fails to allow for the $object of the query to be included within the show/hide-if.
Given that a condition is defined by a function I require the queried object to be included.

How would this be achieved?

Eg:

     <list empty-message="Contact Support; No Master Categories Available">
         <list-item query="categories" hide-if="$:hide_shelter_category($object)">
             <header>{description}</header>            
             <accent label="$:countQuestions($object)" color="positive" />
             <action on-press="$:goToCategory($selection)" />
             <asset icon="$:check_completeStatus($object, 'icon')" color="$:check_completeStatus($object, 'colour')" />
         </list-item>
     </list>```
2

Exclude the object from your query instead. If you cannot do that in the DB query directly then get an array instead of a query and apply custom array filter logic to the elements in the array before rendering it in the list.

If your filter is on a related object you may have to cache the related objects before trying to access them in the array.filter function. Similar to this post on custom sorting

3

As of runtime version 4.84.0 (currently in RC), it is possible to reference $object within the show-if/hide-if attributes of a list-item.

For example, the following list will exclude any users named Adam:

<list>
    <list-item query="users" hide-if="$:$object.name === 'Adam'">
         <header>{name}</header>
    </list-item>
</list>