我正在尝试通过服务模块中的api保存节点。我在保存多个复选框值时遇到了麻烦。
查看通过浏览器提交的表单发送的内容时，多个复选框如下所示：
[und][20-25] = 20-25
我正在这样复制我的api的save方法：
foreach($range as $sf) {
$newNode->field_salary_filter['und'][$sf] = $sf;
$j++;
}
循环基本上是遍历由内插逗号分隔的字符串（这是选中复选框的方式）所组成的值的数组。
但是此行似乎导致此错误：
PDOException：SQLSTATE [01000]：警告：1265第4行的“ delta”列的数据被截断了：INSERT INTO {field_data_field_salary_filter}（entity_type，entity_id，revision_id，bundle，delta，语言，field_salary_filter_value）VALUES（：db_insert_placeholder_0，： db_insert_placeholder_1，：db_insert_placeholder_2，：db_insert_placeholder_3，：db_insert_placeholder_4，：db_insert_placeholder_5，：db_insert_placeholder_6），（：db_insert_placeholder_7，：db_insert_placeholder_8，：db_insert_placeholder_9，：db_insert_placeholder_10，：db_insert_placeholder_11，：db_insert_placeholder_12，：db_insert_placeholder_13），（：db_insert_placeholder_14，：db_insert_placeholder_15，：db_insert_placeholder_16 ，：db_insert_placeholder_17，：db_insert_placeholder_18，：db_insert_placeholder_19，：db_insert_placeholder_20），（：db_insert_placeholder_21，：db_insert_placeholder_22，：db_insert_placeholder_23，：db_insert_placeholder_24，：db_insert_holder，24;：db_insert_holder; 24：：db_insert_holder数组（[：db_insert_placeholder_0] =>节点[：db_insert_placeholder_1] => 900 [：db_insert_placeholder_2] => 900 [：db_insert_placeholder_3] =>作业[：db_insert_placeholder_4] => 0 [：db_insert_placeholder_5] => und [：db_insert_placeholder_1] [：db_insert_placeholder_7] =>节点[：db_insert_placeholder_8] => 900 [：db_insert_placeholder_9] => 900 [：db_insert_placeholder_10] =>作业[：db_insert_placeholder_11] => 1 [：db_insert_placeholder_12] => und [：db_ins_13 db_insert_placeholder_14] =>节点[：db_insert_placeholder_15] => 900 [：db_insert_placeholder_16] => 900 [：db_insert_placeholder_17] =>作业[：db_insert_placeholder_18] => 2 [：db_insert_placeholder_19] => und [：db_insert_holder] =>节点[：db_insert_placeholder_22] => 900 [：db_insert_placeholder_23] => 900 [：db_insert_placeholder_24] =>作业[：db_insert_placeholder_25] => 10-20 [：db_insert_placeholder_26] => und [：db_insert_placerage_27] => sto in rite（）
任何人都可以阐明问题或我如何通过POST和我的api保存多个复选框的值吗？