queryByCondition
===
* 根据不为空的参数进行分页查询

    select 
    @pageTag(){
    t.*
    @}
    from examination_classes t
    where 1=1  
    @//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("examinationClasses.query")#
    @if(!isEmpty(examinationId)){
        and t.examination_id =#examinationId#
    @}
    @if(!isEmpty(classId)){
        and t.class_id =#classId#
    @}
    @if(!isEmpty(status)){
        and t.status =#status#
    @}
    @if(!isEmpty(data)){
        and t.data =#data#
    @}
    
    

deleteExaminationClassesByIds
===

* 批量删除

    delete from examination_classes where find_in_set(class_id,#ids#)


deleteExaminationClassesByExaminationId
===

* 批量删除

  delete from examination_classes where examination_id = #examinationId#


getExaminationClassesValues
===

* 根据不为空的参数进行查询

    select t.*
    from examination_classes t
    where 1=1  
    @if(!isEmpty(examinationId)){
        and t.examination_id =#examinationId#
    @}
    @if(!isEmpty(classId)){
        and t.class_id =#classId#
    @}
    @if(!isEmpty(status)){
        and t.status =#status#
    @}
    @if(!isEmpty(data)){
        and t.data =#data#
    @}
   
    
getValuesByQuery
===

* 根据不为空的参数进行查询

    select t.*
    from examination_classes t
    where 1=1  
    @if(!isEmpty(examinationId)){
        and t.examination_id =#examinationId#
    @}
    @if(!isEmpty(classId)){
        and t.class_id =#classId#
    @}
    @if(!isEmpty(status)){
        and t.status =#status#
    @}
    @if(!isEmpty(data)){
        and t.data =#data#
    @}


getClassesName
===

* 根据不为空的参数进行查询

  SELECT
  c.name class_name, ec.class_id
  FROM
  examination_classes ec
  LEFT JOIN classes c ON ec.class_id = c.classes_id
  WHERE ec.examination_id = #examinationId#