queryByCondition
===
* 根据不为空的参数进行分页查询
* @//数据权限，该sql语句功能点,如果不考虑数据权限，可以删除此行  
* and #function("classes.query")#
   select 
   @pageTag(){
   t.*
   @}
   from classes t
   where 1=1
   @if(!isEmpty(id)){
       and t.id =#id#
   @}
   @if(!isEmpty(name)){
       and t.name =#name#
   @}
   @if(!isEmpty(createdAt)){
       and t.created_at =#createdAt#
   @}
   @if(!isEmpty(updatedAt)){
       and t.updated_at =#updatedAt#
   @}
   @if(!isEmpty(data)){
       and t.data =#data#
   @}
   @if(!isEmpty(schoolId)){
       and t.school_id =#schoolId#
   @}
   @if(!isEmpty(teacherId)){
       and t.teacher_id =#teacherId#
   @}
    
    

deleteClassesByIds
===

* 批量删除

    delete from classes where find_in_set(id,#ids#)

    
getClassesValues
===

* 根据不为空的参数进行查询

    select t.*
    from classes t
    where 1=1  
    @if(!isEmpty(id)){
        and t.id =#id#
    @}
    @if(!isEmpty(name)){
        and t.name =#name#
    @}
    @if(!isEmpty(createdAt)){
        and t.created_at =#createdAt#
    @}
    @if(!isEmpty(updatedAt)){
        and t.updated_at =#updatedAt#
    @}
    @if(!isEmpty(data)){
        and t.data =#data#
    @}
    @if(!isEmpty(schoolId)){
        and t.school_id =#schoolId#
    @}
    @if(!isEmpty(teacherId)){
        and t.teacher_id =#teacherId#
    @}
   
    
getValuesByQuery
===

* 根据不为空的参数进行查询

    select t.*
    from classes t
    where 1=1  
    @if(!isEmpty(id)){
        and t.id =#id#
    @}
    @if(!isEmpty(name)){
        and t.name =#name#
    @}
    @if(!isEmpty(createdAt)){
        and t.created_at =#createdAt#
    @}
    @if(!isEmpty(updatedAt)){
        and t.updated_at =#updatedAt#
    @}
    @if(!isEmpty(data)){
        and t.data =#data#
    @}
    @if(!isEmpty(schoolId)){
        and t.school_id =#schoolId#
    @}
    @if(!isEmpty(teacherId)){
        and t.teacher_id =#teacherId#
    @}


getClassesById
===

* 根据id获取classes

    select * from classes where id = #id#


getClassesByExaminationIdList
===

* 根据一组examinationId获取实训关联班名列表

  select t3.examination_id, t3.class_id as id, t4.name
  from
  (SELECT t1.id, t1.name
  from examinations t1
  WHERE find_in_set(t1.id, #examinationIdList# ) ) t2
  join examination_classes t3 on t2.id = t3.examination_id
  join classes t4 on t3.class_id = t4.id