title: How to pass default filter into Filterrific get
body: <p>I finally got my filterrific get working and its a great gem, if not a little complex for a noob like me.  </p>
  
  <p>My original index page was filtering the active records based on those nearby to the user like this:</p>
  
  <pre><code>def index 
  
  location_ids = Location.near([session[:latitude], session[:longitude]], 50, order: '').pluck(:id)
  @vendor_locations = VendorLocation.includes(:location).where(location_id: location_ids)
  
  @appointments = Appointment.includes(:vendor).
    where(vendor_id: @vendor_locations.select(:vendor_id))
  
  end
  </code></pre>
  
  <p>So this pulls in all of the  Appointments with Vendors in the area, but how do I pass this over to the Filterrific search: </p>
  
  <pre><code>@filterrific = initialize_filterrific(
    params[:filterrific],
    select_options:{ sorted_by: Appointment.options_for_sorted_by, with_service_id: Service.options_for_select },
    ) or return
  
  @appointments = @filterrific.find.page(params[:page])
  
  respond_to do |format|
    format.html
    format.js
  end
  </code></pre>
  
  <p>It seems like the Filterrerrific is loading ALL of the appointments by default, but I want to limit to the ones nearby.  What am I missing?</p>