我知道$m->debug（）;正如这里提到的
但我不确定我应该如何开始调试以下问题。我的方法是在 dsql 中做一个var_dump.php并比较字段，然后在 OOP 层中逐步向上。我想知道是否有一些简单的方法可以做同样的事情。
实际错误：
/Users/Qambar/Work/VERYCOOLAWESOMEPROJECT/atk4/lib/DB/dsql.php :1518 bozims_db_db_dsql_mysql DB_dsql_mysql- >exception("Database Query Failed")
完整日志
/Users/Qambar/Work/VERYCOOLAWESOMEPROJECT/atk4/lib/BaseException.php :63 Exception_DB Exception_DB->collectBasicData(Null)
/Users/Qambar/Work/VERYCOOLAWESOMEPROJECT/atk4/lib/AbstractObject.php :545 Exception_DB Exception_DB->__construct("Database Query Failed", Null)
/Users/Qambar/Work/VERYCOOLAWESOMEPROJECT/atk4/lib/DB/dsql.php :1518 bozims_db_db_dsql_mysql DB_dsql_mysql->exception("Database Query Failed")
/Users/Qambar/Work/VERYCOOLAWESOMEPROJECT/atk4/lib/DB/dsql.php :1545 bozims_db_db_dsql_mysql DB_dsql_mysql->execute()
/Users/Qambar/Work/VERYCOOLAWESOMEPROJECT/atk4/lib/SQL/Model.php :635 bozims_db_db_dsql_mysql DB_dsql_mysql->insert()
/Users/Qambar/Work/VERYCOOLAWESOMEPROJECT/atk4/lib/SQL/Model.php :610 bozims_fileadmin_form_Upload_test_filestore_model_file filestore'Model_File->insert()
/Users/Qambar/Work/VERYCOOLAWESOMEPROJECT/atk4/lib/Form/Field/Upload.php :143 bozims_fileadmin_form_Upload_test_filestore_model_file filestore'Model_File->save()
/ : bozims_fileadmin_form_Upload_test Form_Field_Upload->loadPOST(Object(Form))
/Users/Qambar/Work/VERYCOOLAWESOMEPROJECT/atk4/lib/AbstractObject.php :786 Loggercall_user_func_array(Array(2), Array(1))
/Users/Qambar/Work/VERYCOOLAWESOMEPROJECT/atk4/lib/Form/Basic.php :348 bozims_fileadmin_form Form->hook("loadPOST")
/ : bozims_fileadmin_form Form->submitted(Object(Frontend))
/Users/Qambar/Work/VERYCOOLAWESOMEPROJECT/atk4/lib/AbstractObject.php :786 Loggercall_user_func_array(Array(2), Array(1))
/Users/Qambar/Work/VERYCOOLAWESOMEPROJECT/atk4/lib/ApiWeb.php :290 bozims Frontend->hook("submitted")
/Users/Qambar/Work/VERYCOOLAWESOMEPROJECT/index.php :5 bozims Frontend->main()
通常 - 做一个 debug（），它会给你一个查询本身。将查询复制粘贴到SQL控制台中。如果你在那里遇到错误，那么试着理解为什么。
您还可以使用 setActualFields 缩小查询字段的列表范围，这将使查询更简单。
这应该可以帮助您缩小问题范围。