|  | @@ -23,6 +23,7 @@ import com.yonge.toolset.mybatis.support.PageUtil;
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				|  |  |  import io.swagger.annotations.Api;
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				|  |  |  import io.swagger.annotations.ApiOperation;
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				|  |  |  import org.apache.commons.collections.CollectionUtils;
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				|  |  | +import org.apache.commons.lang3.StringUtils;
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				|  |  |  import org.springframework.http.HttpStatus;
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				|  |  |  import org.springframework.validation.annotation.Validated;
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				|  |  |  import org.springframework.web.bind.annotation.*;
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				|  | @@ -126,8 +127,10 @@ public class TenantAlbumSheetController extends BaseController {
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				|  |  |          if (CollectionUtils.isNotEmpty(courseScheduleCoursewareDetails)) {
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				|  |  |              //过滤酷乐秀相关的权限
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				|  |  |              courseScheduleCoursewareDetails.forEach(tenantAlbumMusicService::filterLessonCourseDetail);
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				|  |  | -            //剔除空数据
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				|  |  | -            courseScheduleCoursewareDetails.forEach(e->tenantAlbumMusicService.filterAndUpdateKnowledgePointList(e, search));
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				|  |  | +            if(StringUtils.isNotEmpty(search)){
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				|  |  | +                //剔除空数据
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				|  |  | +                courseScheduleCoursewareDetails.forEach(e->tenantAlbumMusicService.filterAndUpdateKnowledgePointList(e, search));
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				|  |  | +            }
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				|  |  |              String jsonString = JSONObject.toJSONString(courseScheduleCoursewareDetails);
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				|  |  |              List<LessonCoursewareWrapper.CourseScheduleCoursewareDetail> courseScheduleCoursewareDetailList = JSONObject
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				|  |  |                  .parseArray(jsonString, LessonCoursewareWrapper.CourseScheduleCoursewareDetail.class);
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