fastadmin在json字段动态关联

    <div class="form-group">
        <label class="control-label col-xs-12 col-sm-2">{:__('Json')}:</label>
        <div class="col-xs-12 col-sm-8">

            <dl class="fieldlist" data-template="basictpl" data-name="row[json]">
                <dd>
                    <ins>{:__('镇')}</ins>
                    <ins>{:__('村')}</ins>
                    <ins>{:__('组')}</ins>
                </dd>
                <dd><a href="javascript:;" class="btn btn-sm btn-success btn-append"><i class="fa fa-plus"></i>
                        {:__('Append')}</a></dd>
                <textarea name="row[json]" class="form-control" cols="30" rows="5"></textarea>
            </dl>
            <script id="basictpl" type="text/html">
                <!-- <dd class="form-inline"> -->
                <dd class="form-inline">
                    <ins>
                        <!-- <select class="form-control" data-source="town/index" data-rule="required"></select> -->
                        <input type="text" id="town<%=index%>" name="<%=name%>[<%=index%>][town]" class="form-control selectpage town" data-pagination="true" data-source="town/index" value="<%=row.id%>" placeholder="城镇" size="10"/>
                    </ins>
                    <ins>
                        <!-- <select class="form-control" data-rule="required" name="row[village]" data-source="village/index"></select> -->
                        <input type="text" id="village<%=index%>" name="<%=name%>[<%=index%>][village]" class="form-control selectpage village"  data-source="[]" value="<%=row.id%>" placeholder="村" size="10"/>
                    </ins>
                    <ins>
                        <input type="text" id="groups<%=index%>" name="<%=name%>[<%=index%>][groups]" class="form-control selectpage groups" data-source="[]" value="<%=row.id%>" placeholder="组" size="10"/>
                    </ins>
                    <span class="btn btn-sm btn-danger btn-remove"><i class="fa fa-times"></i></span>
                </dd>
            </script>
        </div>
    </div>

            // 为表格绑定事件
            Table.api.bindevent(table);
        },
        add: function () {
            $(document).on("change", ".town", function () {
                // console.log($(this).parent())
                console.log($(this).parents('ins').next().find('.village'))
                var village = $(this).parents('ins').next().find('.village');
                console.log($(this).data());
                console.log($(this).parents('ins').next().find('.village').data());
                console.log($(this).parents('ins').next().find('.village').next().data());
                // return;
                $.post("village/index", {
                    //搜索条件，上一个selectpage选择完后传过来的id作为此次搜索的条件
                    custom: { town_id: $(this).next().val() },
                    keyField: 'id',
                    showField: 'name',
                }, function (result) {
                    console.log(result);
                    console.log(result.list);
                    //刷新数据的关键，动态更改数据源
                    // $(this).parents('ins').next().find('.village').next().selectPageData(result.list);
                    village.selectPageData(result.list);
                   
                });
            })
            $(document).on("change", ".village", function () {
                var village = $(this).parents('ins').next().find('.groups');
                // return;
                $.post("groups/index", {
                    //搜索条件，上一个selectpage选择完后传过来的id作为此次搜索的条件
                    custom: { village_id: $(this).next().val() },
                    keyField: 'id',
                    showField: 'name',
                }, function (result) {
                    console.log(result);
                    console.log(result.list);
                    //刷新数据的关键，动态更改数据源
                    village.selectPageData(result.list);
                   
                });
            })

            Controller.api.bindevent();
        },