implement filters in nested select #300

Author: Stefano Savanelli

app/assets/javascripts/activeadmin_addons/inputs/nested-select.js

@@ -69,6 +69,7 @@ var initializer = function() {
       var url = element.data('url');
       var fields = element.data('fields');
       var predicate = element.data('predicate');
+      var filters = element.data('filters');
       var displayName = element.data('display-name');
       var parent = element.data('parent');
       var width = element.data('width');
@@ -117,6 +118,8 @@ var initializer = function() {
               query.q[parent + '_eq'] = parentId;
             }
 
+            Object.assign(query.q, filters);
+
             return query;
           },
           processResults: function(data) {

app/inputs/nested_level_input.rb

@@ -17,6 +17,7 @@ def load_control_attributes
     load_class(@options[:class])
     load_data_attr(:fields, default: ["name"], formatter: :to_json)
     load_data_attr(:predicate, default: "contains")
+    load_data_attr(:filters)
     load_data_attr(:model, value: model_name)
     load_data_attr(:display_name, default: "name")
     load_data_attr(:minimum_input_length, default: 1)