Runway Collections

so i have 20 collections each collection is a Car Make contain a list of models with relevant data

i want to create a perch filter https://docs.grabaperch.com/perch/content/functions/user-filtered-lists/

and populate the dropdowns with the data from the collections

i guess it would be something like this but for collections

 <?php perch_content_custom(array('Writing','Podcasts'), array(
      'count'=>10,
          'template'=>'_external_resource.html',
          'page'=>array('/writing/index.php','/podcasts/index.php'),
          'sort'=>'date',
      'sort-order'=>'RAND'
    ));
        ?>

You might find it easier to have just one collection with all the cars in it.

If you want some control over the 'makes' that can be chosen for each car, create a separate collection that just contains the 'makes' available and use a relationship (perch:related) between the two collections.

That would at least make it easier to filter the (one) collection of cars.

Ok one is fine just thought having them separate would make it easier to find individual ones. but hen the filtering in the new perch update will resolve that

Use standard filtering on your page with perch_collection()

You're on Runway, so assuming your urls are potentially going to be along the lines of site.com/make/model/, create a route that gives you /[a:make]/[slug:model] (as an example) and filter using the make and model 'variables'...

Job's a goodun!