Merge branch 'contract_for_student'

mec-biz/src/main/resources/config/mybatis/CourseScheduleMapper.xml

@@ -1384,7 +1384,7 @@
             <if test="onlyHistory!=null and onlyHistory==1">
                 AND CONCAT( cs.class_date_, ' ', cs.end_class_time_ )&lt;now()
             </if>
-            <if test="status!=null and status!=''">
+            <if test="status!=null">
                 AND cs.status_ = #{status,typeHandler=com.ym.mec.common.dal.CustomEnumTypeHandler}
             </if>
             <if test="startClassDate!=null and startClassDate!=''">
@@ -1493,7 +1493,7 @@
         <if test="userId != null">
             AND sa.teacher_id_=#{userId}
         </if>
-        <if test="status!=null and status!=''">
+        <if test="status!=null">
             AND cs.status_ = #{status,typeHandler=com.ym.mec.common.dal.CustomEnumTypeHandler}
         </if>
         <if test="startClassDate!=null and startClassDate!=''">
@@ -1527,7 +1527,7 @@
         <if test="userId != null">
             AND sa.teacher_id_=#{userId}
         </if>
-        <if test="status!=null and status!=''">
+        <if test="status!=null">
             AND cs.status_ = #{status,typeHandler=com.ym.mec.common.dal.CustomEnumTypeHandler}
         </if>
         <if test="startClassDate!=null and startClassDate!=''">