Refactor asset search to use SecureAPIRequest

Closes #474 and #465

assets/templates/asset_form.html

@@ -31,48 +31,8 @@
         checkIfCableHidden();
     </script>
     <script>
-    $('#parent_id')
-        .selectpicker({
-            liveSearch: true
-        })
-        .ajaxSelectPicker({
-            ajax: {
-                url: "{% url 'asset_search_json' %}",
-                type: "GET",
-                data: function () {
-                    let params = {
-                        {% verbatim %}query: '{{{q}}}'{% endverbatim  %}
-                    };
-                    return params;
-                }
-            },
-            locale: {
-                emptyTitle: 'Search for item...'
-            },
-            preprocessData: function(data){
-                var assets = [];
-                if(data.length){
-                    var len = data.length;
-                    for(var i = 0; i < len; i++){
-                        var curr = data[i];
-                        assets.push(
-                            {
-                                'value': curr.id,
-                                'text': curr.label,
-                                'disabled': false
-                            }
-                        );
-                    }
-                    assets.push(
-                    {
-                        'value': null,
-                        'text': "No parent"
-                    });
-                }
-
-                return assets;
-            },
-            preserveSelected: false
+        $('document').ready(function(){
+            $(document).find(".selectpicker").selectpicker().each(function(){initPicker($(this))});
         });
     </script>
     <script>