<timetable importtype="database" options="idprefix:MyApp">
   <teachers options="import:disable,canadd,canremove,canupdate,primarytt,silent" columns="id,name,short">
   </teachers>
   <classes options="import:disable,canadd,canremove,canupdate,primarytt,silent" columns="id,name">
   </classes>
   <subjects options="import:disable,canadd,canremove,canupdate,primarytt,silent" columns="id,name,short">
   </subjects>
   <classrooms options="import:disable,canadd,canremove,canupdate,primarytt,silent" columns="id,name,short">
   </classrooms>
   <groupsubjects options="import:disable,canadd,canremove,canupdate,primarytt,silent" columns="classids,subjectid,periodsperweek,teacherids">
   </groupsubjects>
   <cards options="import:disable,canadd,canremove,canupdate,primarytt,silent" columns="day,period,classids,subjectid,teacherids">
   </cards>
</timetable>