不管使用add还是save时并没有修改数据，而是在数据表中新增了空白行，有没有大神帮我看一下哪里有问题？

1.控制器部分


2.模型部分


3.修改的界面


4.数据库新增了空白行，但是数据并没有被修改


5.打印数组


6.以下是调试SQL语句
SHOW COLUMNS FROM `oa_personnellist` [ RunTime:0.0060s ]
UPDATE `oa_personnellist` SET `name`='*文君',`sex`='1',`birthday`='1988-02-28',`nation`='汉族',`origin`='江苏',`marital`='1',`political`='群众',`education_jb`='大专',`major_jb`='电气自动化',`school_jb`='南京工程学院',`phone`='15990000000',`home`='无锡市号',`wechat`='123456',`qq`='9900000',`email`='***wenjun@**-tech.com',`state`='1',`idcard`='320202000000000000',`did`='010',`job_jb`='电工',`category`='1',`entry_time`='2013-11-18',`quit_time`='',`note`='' WHERE `job_num` = '8452' [ RunTime:0.0010s ]
SHOW COLUMNS FROM `oa_department` [ RunTime:0.0050s ]
SHOW COLUMNS FROM `oa_bank` [ RunTime:0.0050s ]
INSERT INTO `oa_bank` () VALUES () [ RunTime:0.0400s ]
INSERT INTO `oa_bank` () VALUES () [ RunTime:0.0000s ]
INSERT INTO `oa_bank` () VALUES () [ RunTime:0.0210s ]
INSERT INTO `oa_bank` () VALUES () [ RunTime:0.0310s ]
INSERT INTO `oa_bank` () VALUES () [ RunTime:0.0000s ]
INSERT INTO `oa_bank` () VALUES () [ RunTime:0.0220s ]
SHOW COLUMNS FROM `oa_job` [ RunTime:0.0050s ]
SHOW COLUMNS FROM `oa_material` [ RunTime:0.0050s ]
SHOW COLUMNS FROM `oa_work` [ RunTime:0.0050s ]
SHOW COLUMNS FROM `oa_education` [ RunTime:0.0060s ]