fastadmin搜索栏实现某字段动态下拉搜索

记录：fastadmin搜索栏实现某字段动态下拉搜索
方式一：使用selectpicker组件，可多选

{ field: 'travel_agency', title:__('Travel_agency'),addClass:"selectpicker", operate:"IN",data:"multiple", searchList: $.getJSON("travel/bill/travel_agencylist_pay")},

方式二：使用selectpage组件，可多选，可搜索

columns: [[{field: 'travel_agency', title: __('Travel_agency'), operate:"IN"},]],onPostCommonSearch: function (event, table) {//动态下拉列表$("form.form-commonsearch input[name='travel_agency']").addClass("selectpage").data("multiple","true").data("source", "travel/bill/travel_agencylist_pay");//.val();	设置默认值},