Use/Match searchable attributes

.gitignore

@@ -7,3 +7,4 @@
 /pkg/
 /spec/reports/
 /tmp/
+.idea/

app/assets/javascripts/belongs_to_search.js

@@ -2,10 +2,11 @@
 $(function() {
   $(".field-unit--belongs-to-search select").each(function initializeSelectize(index, element) {
     var $element = $(element);
+    var searchFields = $element.data('search-fields') && $element.data('search-fields').split(',')
     $element.selectize({
       valueField: 'id',
       labelField: 'dashboard_display_name',
-      searchField: 'dashboard_display_name',
+      searchField: searchFields || 'dashboard_display_name',
       create: false,
       searchUrl: $element.data('url') + '?search=',
 

app/views/administrate/application/index.json.jbuilder

@@ -18,6 +18,9 @@
 # [1]: http://www.rubydoc.info/gems/administrate/Administrate/Page/Collection
 
 json.resources resources do |resource|
+  @dashboard.search_attributes.each do |attr|
+    json.set! attr, resource.public_send(attr).to_s
+  end
   json.id resource.id
   json.dashboard_display_name @dashboard.display_resource(resource)
 end

app/views/fields/belongs_to_search/_form.html.erb

@@ -21,7 +21,8 @@ that displays all possible records to associate with.
   <%= f.select(field.permitted_attribute,
                nil,
                {},
-               'data-url': polymorphic_url([namespace, field.associated_class], format: :json)) do %>
+               'data-url': polymorphic_url([namespace, field.associated_class], format: :json),
+               'data-search-fields': field.dashboard.search_attributes&.join(",")) do %>
     <%= options_for_select(field.associated_resource_options, field.selected_option) %>
   <% end %>
 </div>

lib/administrate/field/belongs_to_search.rb

@@ -22,6 +22,10 @@ def associated_resource_options
       def associated_class
         super
       end
+
+      def dashboard
+        "#{associated_class}Dashboard".constantize.new
+      end
     end
   end
 end